Fixture for grinding car lamp drill

Abstract

The utility model discloses a kind of clamps for vehicle lamp grinding drill, including bottom plate, installation stand, clamp assembly, bottom plate top is connected with fixed frame and two groups of mounting frame are connected in fixed frame, suction cup assembly is equipped on installation stand, clamp assembly includes suction cup, clamp assembly is equipped with two groups and is respectively equipped on installation stand, clamp assembly includes first cylinder, first cylinder is equipped with several groups and several groups first cylinder are all connected on installation stand by L type board, by adopting suction cup assembly and clamp assembly double fixing structure, suction cup is adsorbed vehicle lamp surface by vacuum air source, can adapt to the appearance of the vehicle lamp with greater camber, avoid the fixing failure problem of traditional mechanical clamping to special-shaped workpiece, simultaneously, first cylinder drives clamping plate to clamp from side, second cylinder drives horizontal bar and pressing block to compress the top of vehicle lamp, by multiple acting force, it can effectively prevent vehicle lamp from deviating or shaking during grinding drill, greatly reduce the processing error caused by workpiece displacement.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lamp processing technology, specifically relating to a fixture for grinding and drilling automotive lamps. Background Technology

[0002] In the automotive manufacturing industry, headlights are important safety and aesthetic components, and their machining precision directly affects their assembly performance, sealing performance, and lighting effect. Among these processes, the grinding and drilling of headlights is one of the key manufacturing steps, mainly used to precisely machine the mounting holes and positioning holes on the headlight housing to meet subsequent assembly requirements.

[0003] To ensure the stability and accuracy of grinding and drilling, existing fixtures are used to reliably fix the headlights. Currently, most commonly used headlight fixing fixtures employ mechanical clamping structures, such as using a cylinder to drive the jaws to clamp the headlight from its outer periphery or specific protruding parts. However, these traditional fixtures have certain limitations in practical applications. For headlights with large curvature or no obvious clamping points, mechanical jaws are difficult to achieve stable clamping, and workpiece displacement is prone to occur during grinding and drilling, leading to out-of-tolerance machining hole position accuracy or even workpiece scrap. Furthermore, the clamping process of traditional fixtures often requires manual assistance in positioning. During clamping, the operator must first manually support the headlight to align it with the machining station before activating the mechanical clamping structure to complete the fixation. During this process, the headlight is prone to positional wobbling due to external force or its own center of gravity shift, resulting in a deviation between the final clamping position and the preset machining datum. Especially for headlights with large volume and complex curvature, manual support not only increases the operator's labor intensity but also makes it difficult to ensure the consistency of positioning for each clamping, directly affecting the machining accuracy stability of mass production. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for grinding and drilling automotive lights, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for grinding and drilling automotive lights, comprising:

[0006] A base plate, the top of which is connected to a fixed frame and two sets of mounting brackets are connected inside the fixed frame;

[0007] The mounting frame has two sets and is connected to the two sets of mounting brackets respectively. The mounting frame is equipped with a suction cup assembly for pre-fixing the vehicle light. The clamp assembly includes suction cups. The suction cups have several sets and are all connected to the mounting frame through brackets. One end of the suction cup is connected to a pipe connector. A vacuum source is input to the suction cup through the pipe connector so that the suction cup can adsorb and fix the vehicle light placed in the mounting frame.

[0008] The clamping assembly has two sets, each mounted on a mounting frame. The clamping assembly includes a first cylinder, which has several sets, and each set of first cylinders is connected to the mounting frame via an L-shaped plate. The piston rod of the first cylinder is connected to a clamping plate for fixing the vehicle headlight.

[0009] Preferably, the top of the mounting frame is provided with a second cylinder and the piston rod of the second cylinder is connected to a crossbar, and a pressure block is connected to one end of the bottom of the crossbar.

[0010] Preferably, the mounting frame is connected to several protective shells, and a stroke sensor is provided inside the protective shell. One end of the stroke sensor is provided with a contact head.

[0011] Preferably, the mounting frame is connected to a pole and an outer cover is connected to the pole, and a scanner is installed inside the outer cover.

[0012] Preferably, both ends of the top of the base plate are connected to a metal casing for protecting electrical equipment.

[0013] Preferably, two sets of handles are connected to both ends of the top of the base plate.

[0014] Preferably, both ends of the top of the base plate are connected with positioning pins.

[0015] Preferably, the top of the base plate is connected to several fixing blocks and a positioning post is inserted into the fixing block. A spring is fitted on the positioning post, and the two ends of the spring are respectively connected to the fixing block and the positioning post.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) By adopting a dual fixing structure of suction cup assembly and clamping assembly, the suction cup adsorbs the surface of the car lamp through vacuum source, which can adapt to the shape of the car lamp with large curvature and avoid the problem of fixation failure of traditional mechanical clamping for special shaped workpieces. At the same time, the first cylinder drives the clamping plate to clamp from the side, and the second cylinder drives the crossbar and pressure block to press the top of the car lamp. Through multiple forces, the car lamp can be effectively prevented from shifting or shaking during the grinding process, and the processing error caused by workpiece displacement is greatly reduced.

[0018] (2) The stroke sensor inside the protective housing monitors the position of the headlight through the contact head. If the workpiece is misplaced or not fixed in place, it can provide timely feedback and pause the processing to avoid the equipment running idle or the workpiece being damaged by misoperation. The scanner inside the housing can scan the shape of the headlight in advance to provide accurate positioning data for the grinding and drilling process, reduce the error of manual positioning, and improve the processing accuracy.

[0019] (3) The second cylinder drives the pressure block to be fixed from the top, eliminating the need for manual pressing and saving clamping time; the handle on the base plate facilitates the overall handling of the fixture, and the positioning pin and spring-loaded positioning column can quickly realize the positioning and installation of the fixture and the processing equipment, shortening the equipment debugging cycle.

[0020] (4) Two sets of workstations are set on the base plate, which can realize "alternating operation". When one set of workstations is grinding and drilling, the operator can complete the clamping and fixing of the car lights in the other set of workstations. After the processing of the previous set of workstations is completed, there is no need to wait for the clamping time. The operator can directly switch to the workstation that has been clamped and start processing, which greatly increases the effective working time of the grinding and drilling equipment and greatly improves the processing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the mounting frame and mounting stand of this utility model;

[0023] Figure 3 This is a schematic diagram of the suction cup of this utility model;

[0024] Figure 4 This is a schematic diagram of the scanner of this utility model;

[0025] Figure 5 This is a schematic diagram of the stroke sensor of this utility model.

[0026] In the diagram: 1. Base plate; 2. Fixing frame; 3. Mounting frame; 4. Mounting stand; 5. Suction cup; 6. Bracket; 7. Pipe joint; 8. First cylinder; 9. L-shaped plate; 10. Clamping plate; 11. Protective housing; 12. Stroke sensor; 13. Upright pole; 14. Outer cover; 15. Scanner; 16. Contact head; 17. Second cylinder; 18. Crossbar; 19. Pressure block; 20. Metal housing; 21. Handle; 22. Positioning pin; 23. Fixing block; 24. Positioning post; 25. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] This utility model provides, for example Figure 1-5 The fixture shown is for grinding and drilling automotive lights, comprising:

[0030] The base plate 1 has a fixed frame 2 connected to its top, and two sets of mounting brackets 3 are connected inside the fixed frame 2.

[0031] Mounting bracket 4 has two sets and is respectively connected to two sets of mounting brackets 3. The mounting bracket 4 is equipped with a suction cup assembly for pre-fixing the vehicle light. The clamp assembly includes suction cups 5. The suction cups 5 have several sets and all sets of suction cups 5 are connected to the mounting bracket 4 through brackets 6. One end of the suction cup 5 is connected to a pipe connector 7. A vacuum source is input to the suction cup 5 through the pipe connector 7 so that the suction cup 5 can adsorb and fix the vehicle light placed in the mounting bracket 4.

[0032] The clamping assembly has two sets and is respectively mounted on the mounting frame 4. The clamping assembly includes a first cylinder 8. The first cylinder 8 has several sets and the several sets of first cylinder 8 are connected to the mounting frame 4 through L-shaped plates 9. The piston rod of the first cylinder 8 is connected to a clamping plate 10 for fixing the vehicle light.

[0033] The mounting bracket 4 is equipped with a second cylinder 17 at the top, and the piston rod of the second cylinder 17 is connected to a crossbar 18. One end of the bottom of the crossbar 18 is connected to a pressure block 19. The piston rod of the second cylinder 17 can extend and retract flexibly, driving the crossbar 18 and the pressure block 19 to move up and down. When facing car lights of different thicknesses, the extension length of the piston rod can be adjusted to ensure that the pressure block 19 always fits the top surface of the car light, greatly improving the adaptability to diverse workpieces.

[0034] The mounting bracket 4 is connected to several protective housings 11, and each protective housing 11 is equipped with a stroke sensor 12. One end of the stroke sensor 12 is equipped with a contact head 16. The stroke sensor 12 is a Keyence GT2-A12, which is a high-precision contact digital stroke sensor.

[0035] The mounting frame 4 is connected to a pole 13 and an outer cover 14 is connected to the pole 13. The outer cover 14 contains a scanner 15.

[0036] Both ends of the top of the base plate 1 are connected to metal housings 20 for protecting electrical equipment.

[0037] Two sets of handles 21 are connected to both ends of the top of the base plate 1. The two sets of handles 21 are respectively set at both ends of the base plate 1. The operator can hold the handles 21 with both hands to lift or move the clamping device in a balanced manner.

[0038] The base plate 1 is connected to positioning pins 22 at both ends of the top. The shape of the positioning pins 22 matches the preset fixing holes on the table of the grinding and drilling equipment. During installation, simply align the positioning pins 22 with the holes and insert them to quickly fix the base plate 1 on the equipment table.

[0039] The top of the base plate 1 is connected to several fixing blocks 23, and a positioning post 24 is inserted into the fixing block 23. A spring 25 is fitted on the positioning post 24. The two ends of the spring 25 are connected to the fixing block 23 and the positioning post 24 respectively. After the positioning post 24 is inserted into the fixing block 23, it can be matched with the positioning hole on the table of the grinding and drilling equipment, so that the device can quickly align with the processing reference of the equipment. The elastic force of the spring 25 will always push the positioning post 24 into the inside of the positioning hole, ensuring that the positioning post 24 is tightly fitted with the hole wall, and avoiding positioning offset caused by equipment vibration or installation gap.

[0040] The car headlight grinding fixture works by aligning the base plate 1 of the fixture with the worktable of the grinding equipment. The positioning pins 22 on the edge of the base plate 1 will be inserted into the corresponding slots on the worktable. At the same time, the positioning pins 24 with springs 25 will press against the positioning holes on the worktable under the action of the spring force, completing the initial positioning of the fixture and the equipment. Then, the operator can gently place the car headlight into the placement area between the two sets of mounting brackets 4. The scanner 15 inside the outer cover 14 will scan the outer contour shape of the car headlight by light. The scanning result will be transmitted to the equipment control system in real time, which will serve as the basis for subsequent fixing and processing. Meanwhile, the stroke sensor 12 inside the protective shell 11 will gently contact the surface of the car headlight through the contact head 16 to initially determine whether the car headlight is placed in the preset processing area. If the car headlight is completely off the placement range, the system will issue a prompt signal to remind the operator to reposition it.

[0041] Once the scanner 15 confirms that the headlight is within the processing range, the control system activates the suction cup 5 assembly. An external vacuum source enters the suction cup 5 through the pipe connector 7, quickly creating a negative pressure at the contact area between the suction cup 5 and the headlight surface. Using atmospheric pressure, the headlight is firmly adhered to the placement surface, preventing it from moving even with slight contact. Simultaneously, the first cylinder 8 receives a start signal, and its piston rod drives the clamping plate 10 on the L-shaped plate 9 to slowly move towards the side of the headlight. After contacting the headlight, the clamping plate 10 continues to apply a moderate clamping force. The headlight is clamped and fixed. At this time, the suction force of the suction cup 5 and the clamping force of the clamping plate 10 form a lateral fixing force that works together to prevent the headlight from shifting horizontally during processing from two dimensions. Then, the piston rod of the second cylinder 17 is activated, which drives the crossbar 18 to move downward. The pressure block 19 at the bottom of the crossbar 18 will gradually approach the top surface of the headlight. After contact, it applies vertical pressure, which forms a fixed cooperation with the suction force of the suction cup 5 below in the vertical direction, further enhancing the overall stability of the fixation. After the fixation is confirmed, the grinding and drilling mechanism of the equipment can process the headlight.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for grinding and drilling automotive lights, characterized in that, include: The base plate (1) has a fixed frame (2) connected to its top and two sets of mounting frames (3) connected inside the fixed frame (2); Mounting stand (4), the mounting stand (4) is provided with two sets and is respectively connected to two sets of mounting brackets (3). The mounting stand (4) is provided with suction cup assembly for pre-fixing the vehicle lights. The suction cup assembly includes suction cups (5). The suction cups (5) are provided with several sets and several sets of suction cups (5) are connected to the mounting stand (4) through brackets (6). One end of the suction cup (5) is connected to a pipe connector (7). A vacuum source is input to the suction cup (5) through the pipe connector (7) so that the suction cup (5) adsorbs and fixes the vehicle lights placed in the mounting stand (4). The clamp assembly has two sets and is respectively mounted on the mounting frame (4). The clamp assembly includes a first cylinder (8). The first cylinder (8) has several sets and the several sets of first cylinders (8) are connected to the mounting frame (4) through L-shaped plates (9). The piston rod of the first cylinder (8) is connected to a clamp plate (10) for fixing the vehicle lights.

2. The clamp for grinding the vehicle lamp according to claim 1, wherein: The mounting bracket (4) is equipped with a second cylinder (17) at the top, and the piston rod of the second cylinder (17) is connected to a crossbar (18). One end of the bottom of the crossbar (18) is connected to a pressure block (19).

3. The clamp for grinding the vehicle lamp according to claim 1, wherein: The mounting bracket (4) is connected to several protective shells (11), and a stroke sensor (12) is provided inside the protective shell (11). One end of the stroke sensor (12) is provided with a contact head (16).

4. The clamp for grinding the vehicle lamp according to claim 1, wherein: The mounting bracket (4) is connected to a pole (13) and an outer cover (14) is connected to the pole (13). The outer cover (14) contains a scanner (15).

5. The clamp for grinding the vehicle lamp according to claim 1, wherein: The bottom plate (1) has metal housings (20) for protecting electrical equipment connected to both ends of its top.

6. The clamp for grinding the vehicle lamp according to claim 1, wherein: Two sets of handles (21) are connected to both ends of the top of the base plate (1).

7. The clamp for grinding the vehicle lamp according to claim 1, wherein: The bottom plate (1) has positioning pins (22) connected to both ends of its top.

8. The clamp for grinding the vehicle lamp according to claim 1, wherein: The top of the base plate (1) is connected to several fixing blocks (23) and a positioning post (24) is inserted into the fixing block (23). A spring (25) is fitted on the positioning post (24) and the two ends of the spring (25) are respectively connected to the fixing block (23) and the positioning post (24).

Images