Height control tool for car loading screw on car lamp

Abstract

The height control tool comprises a corner air cylinder, the upper end of the corner air cylinder is movably connected with a piston rod, the piston rod is connected with a pressing arm, when the corner air cylinder is in a natural state, the pressing arm is far away from a car lamp shell, and when the corner air cylinder is in a working state, the pressing arm is far away from the car lamp shell. The piston rod can drive the pressing arm to rotate and press downwards to the position above the automobile lamp shell. The first loading screw and the second loading screw are screwed into the corresponding first preformed hole and the second preformed hole through a screwdriver head of the downward pressing device, a limiting face is arranged at the upper end of the screwdriver head, and the diameter of the limiting face is larger than that of the first through hole or the second through hole. The height, protruding out of the upper surface of the limiting block to the limiting face, of the screwdriver head is equal to the screwing-in depth of the first loading screw or the second loading screw. According to the tool, the screwing depth of a loading screw is guaranteed, the installation precision is guaranteed, meanwhile, the assembly quality is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a height control tool for mounting screws on vehicle lamps. Background Art

[0002] The rapid development of the automotive lighting industry has led to higher requirements for product installation quality. During the production and assembly of automotive lighting components, mounting screws are often required. These screws are typically installed using power tools such as electric screwdrivers. The screws are screwed into the corresponding pre-installed holes, ensuring the proper installation depth for each screw.

[0003] Common methods include installing a fiber optic sensor inside the prefabricated hole of the headlight housing. Operators using this method control the start and stop of power tools such as electric screwdrivers by visually observing changes in the optical fiber's light intensity, which can easily lead to human error and result in failure to meet the required height accuracy for the mounting screws. Another method involves installing a contact switch on the tooling, which involves installing a screw limit contact rod inside the prefabricated hole of the headlight housing. When the mounting screw is screwed into the prefabricated hole using a tool such as an electric screwdriver, the downward movement of the mounting screw contacts the screw limit contact rod, which in turn presses down the screw limit contact rod. This downward pressure causes the contact switch trigger rod to move downward, which in turn contacts the contact switch. The contact switch sends a signal, prompting the operator to stop the electric screwdriver from screwing in. However, due to the inertia delay of power tools such as electric screwdrivers, the height deviation of the mounting screws is large, failing to meet the required accuracy. Summary of the Invention

[0004] The purpose of the utility model is to provide a height control tool for mounting screws on headlights to solve the problems existing in the above-mentioned prior art. When an electric screwdriver is used to assemble the mounting screws on the headlights, the screwing depth of the mounting screws can be guaranteed, the installation accuracy can be guaranteed, and the assembly quality and production efficiency can be improved.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides a height control tool for mounting screws on a headlight, comprising a rotary cylinder, wherein the upper end of the rotary cylinder is movably connected to a piston rod, and the piston rod is connected to a pressure arm. When the rotary cylinder is in a natural state, the pressure arm is away from the headlight housing. When the rotary cylinder is in an operating state, the piston rod drives the pressure arm to rotate and press down to the top of the headlight housing.

[0007] The upper surface of the end of the pressure arm away from the piston rod is connected to a limit block, and the two ends of the limit block are respectively provided with a first vertical through hole and a second through hole, the first through hole corresponds to the first reserved hole on the lamp housing, and the first reserved hole is used to threadably connect a first mounting screw, and the second through hole corresponds to the second reserved hole on the lamp housing, and the second reserved hole is used to threadably connect a second mounting screw;

[0008] The first loading screw and the second loading screw are screwed into the corresponding first reserved hole and the second reserved hole through the screwdriver head of the pressing device, and the lower end of the screwdriver head is matched with the first loading screw after passing through the first through hole, and the upper end of the screwdriver head protrudes from the upper surface of the limit block, or the lower end of the screwdriver head is matched with the second loading screw after passing through the second through hole, and the upper end of the screwdriver head protrudes from the upper surface of the limit block, and a limiting surface is provided at the upper end of the screwdriver head, and the diameter of the limiting surface is larger than the diameter of the first through hole or the second through hole, and the height of the screwdriver head protruding from the upper surface of the limit block to the limiting surface is equal to the screwing depth of the first loading screw or the second loading screw.

[0009] Preferably, the lower surface of the pressure arm away from the piston rod is connected to a support block, the middle part of the support block is provided with a support block mounting hole, the end of the pressure arm is provided with a pressure arm mounting hole, the middle part of the limit block is provided with a limit block mounting hole, the positions of the support block mounting hole, the pressure arm mounting hole and the limit block mounting hole correspond one to one, and the mounting shaft can pass through the limit block mounting hole, the pressure arm mounting hole and the support block mounting hole in sequence, so that the limit block, the pressure arm and the support block are fixed into one.

[0010] Preferably, a limit block groove is provided on the lower surface of the limit block, and the upper surface of the pressure arm can be snapped into the limit block groove.

[0011] Preferably, the upper surface of the support block is provided with a support block groove, and the lower surface of the pressure arm can be snapped into the support block groove.

[0012] Preferably, the bottom surface of the support block is an inclined curved surface and matches the upper surface of the vehicle lamp housing.

[0013] Preferably, the support block is made of a material with good elasticity and high strength.

[0014] Preferably, a fixing plate is fixedly connected to the upper surface of the cylinder body of the angle cylinder, and a fixing plate groove is provided in the middle part of the fixing plate extending downward from the upper surface. The pressure arm can be pressed down into the fixing plate groove, and the lower surface of the pressure arm can abut against the bottom surface of the fixing plate groove.

[0015] Preferably, the longitudinal cross-section of the fixing plate groove is funnel-shaped with a large opening at the upper end and a small opening at the lower end.

[0016] Preferably, the model of the angle cylinder is selected from the MKB20-10LZ model or the MKB20-10RZ model, and the pressing device is an electric screwdriver.

[0017] Preferably, the fixed end of the corner cylinder is connected to a connecting plate, the connecting plate is connected to a supporting column, the supporting column is connected to a base plate, the corner cylinder is connected to a controller, and the controller controls the start and stop of the corner cylinder.

[0018] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0019] 1. The height control tool for the mounting screws on the headlights provided by the present invention has a limit surface on the upper end of the screwdriver head. Therefore, when the screwdriver head is pressing the mounting screw, the screwdriver head moves downward. When the limit surface of the screwdriver head abuts the upper surface of the limit block, the screwdriver head is stuck and cannot move downward any further, thereby preventing the mounting screw from being pressed downward any further. As a result, the mounting screw cannot be screwed in any further. By setting the height of the screwdriver head protruding from the upper surface of the limit block to the limit surface equal to the screw-in depth of the mounting screw, the screw-in depth of the mounting screw is indirectly controlled by controlling the height of the downward movement of the screwdriver head. Even if the electric screwdriver has an inertial delay, the screwdriver head will not continue to move downward due to the limitation of the upper surface of the limit block, and the mounting screw will not continue to be screwed in, thereby ensuring the screw-in depth of the mounting screw and the installation accuracy.

[0020] 2. The height control tooling for the mounting screws on the headlights provided by the present invention adopts an angle cylinder. When the angle cylinder is not turned on, the staff can place the headlight housing to be assembled on the workstation, and then start the angle cylinder. The pressure arm of the angle cylinder will rotate and press down to the top of the headlight housing. Since the limit block and the support block are respectively fixed to the pressure arm, the rotation of the pressure arm will drive the rotation of the limit block and the support block, so that the support block and the limit block move to the top of the headlight housing and the support block abuts against the upper surface of the headlight housing, and the first through hole corresponds to the first reserved hole on the headlight housing, while the second through hole corresponds to the second reserved hole on the headlight housing. The limit block provides a limit when pressing down, and the support block provides support force for the pressure arm, making the structure more stable when installing the mounting screws downward.

[0021] 3. The height control tooling for the loading screws on the headlights provided by the utility model is configured with a limit block groove and a support block groove so that the upper surface of the pressure arm is stuck in the limit block groove and the lower surface of the pressure arm is stuck in the support block groove, thereby avoiding the left and right shaking of the limit block and the support block when pressing down the loading screw, further ensuring the stability of the structure and the accuracy of the screw-in depth of the loading screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the height control tooling for mounting screws on vehicle lights in the present invention in its natural state;

[0023] Figure 2 This is a schematic diagram of a partially exploded structure of a tool for controlling the height of mounting screws on a headlight in the present invention;

[0024] Figure 3 This is a schematic structural diagram of the height control tool for the mounting screws on the vehicle lamp in the present invention when it starts to press down the mounting screws;

[0025] Figure 4 It is a structural schematic diagram of the working state of the height control tool for the mounting screw on the vehicle lamp in the utility model when the mounting screw is pressed down to the required height.

[0026] In the figure: 1-angle cylinder, 2-piston rod, 3-pressure arm, 4-headlight housing, 5-limit block, 6-support block, 7-support block mounting hole, 8-pressure arm mounting hole, 9-limit block mounting hole, 10-first through hole, 11-second through hole, 12-first reserved hole, 13-first mounting screw, 14-second reserved hole, 15-second mounting screw, 16-screwdriver head, 17-limiting surface, 18-limiting block groove, 19-support block groove, 20-fixing plate, 21-fixing plate groove, 22-connecting plate, 23-support column, 24-base plate. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] The utility model provides a height control tool for mounting screws on vehicle lights, such as Figures 1-4As shown, it includes an angle cylinder 1, the model of the angle cylinder 1 is selected from the MKB20-10LZ model or the MKB20-10RZ model, the upper end of the angle cylinder 1 is movably connected with a piston rod 2, and the piston rod 2 is fixedly connected to the pressure arm 3. When the angle cylinder 1 is in a natural state, the pressure arm 3 is away from the headlight housing 4, so that a placement space is reserved for the headlight housing 4. When the angle cylinder 1 is in a working state, the piston rod 2 will drive the pressure arm 3 to rotate and press down to the top of the headlight housing 4 to install the mounting screws. The upper surface of the end of the pressure arm 3 away from the piston rod 2 is connected to the limiting block 5, and the lower surface of the end of the pressure arm 3 away from the piston rod 2 is connected to the support block 6. The middle of the support block 6 is provided with a support block mounting hole 7, the end of the pressure arm 3 is provided with a pressure arm mounting hole 8, and the middle of the limit block 5 is provided with a limit block mounting hole 9. The positions of the support block mounting hole 7, the pressure arm mounting hole 8 and the limit block mounting hole 9 correspond one to one. The mounting shaft (not shown) can pass through the limit block mounting hole 9, the pressure arm mounting hole 8 and the support block mounting hole 7 in sequence to realize the fixed connection of the limit block 5, the pressure arm 3 and the support block 6.

[0029] A first vertical through hole 10 and a second vertical through hole 11 are respectively provided at both ends of the stop block 5. The first through hole 10 corresponds to a first reserved hole 12 on the lamp housing 4, which is used to threadably connect a first mounting screw 13. The second through hole 11 corresponds to a second reserved hole 14 on the lamp housing 4, which is used to threadably connect a second mounting screw 15. The first and second mounting screws 13 and 15 are screwed into the corresponding first and second reserved holes 12 and 14 using the screwdriver bit 16 of an electric screwdriver. The lower end of the screwdriver head 16 passes through the first through hole 10 and matches the first loading screw 13, and the upper end of the screwdriver head 16 protrudes from the upper surface of the limit block 5, or the lower end of the screwdriver head 16 passes through the second through hole 11 and matches the second loading screw 15, and the upper end of the screwdriver head 16 protrudes from the upper surface of the limit block 5. The upper end of the screwdriver head 16 is provided with a limiting surface 17, and the diameter of the limiting surface 17 is greater than the diameter of the first through hole 10. The height of the screwdriver head 16 protruding from the upper surface of the limit block 5 to the limiting surface 17 is equal to the screwing depth of the first loading screw 13 or the second loading screw 15.

[0030] When the corner cylinder 1 is not turned on, the staff can place the headlight housing 4 to be assembled on the work station, and then start the corner cylinder 1. The pressure arm 3 of the corner cylinder 1 will rotate and press down to the top of the headlight housing 4. Since the limit block 5 and the support block 6 are respectively fixed to the pressure arm 3, the rotation of the pressure arm 3 will drive the rotation of the limit block 5 and the support block 6, so that the support block 6 and the limit block 5 move to the top of the headlight housing 4 and the support block 6 abuts against the upper surface of the headlight housing 4, and makes the first through hole 10 correspond to the first reserved hole 12 on the headlight housing 4, and the second through hole 11 corresponds to the second reserved hole 14 on the headlight housing 4. The support block 6 provides support for the pressure arm 3, making the structure more stable when the loading screws are installed downward. Then the first loading screw 13 can be placed in the first reserved hole 12, and the screwdriver head 16 of the electric screwdriver is passed through the first through hole 10 and matched with the first loading screw 13. The lower end of the screwdriver head 16 will match the upper surface of the first loading screw 13, and the upper end of the screwdriver head 16 will protrude from the upper surface of the limit block 5. At this time, the electric screwdriver is started to screw the first loading screw 13 into the first reserved hole 12 through the screwdriver head 16. Since the upper end of the screwdriver head 16 is provided with a limiting surface 17, and the diameter of the limiting surface 17 is larger than the diameter of the first through hole 10, the screwdriver head 16 moves downward in the process of pressing the first loading screw 13. When the limiting surface 17 of the screwdriver head 16 abuts the upper surface of the limit block 5, the screwdriver head 16 is stuck and cannot move downward any further, thereby preventing the first loading screw 13 from being pressed downward and thus preventing the first loading screw 13 from being screwed downward any further. By setting the height of the screwdriver head 16 protruding from the upper surface of the limit block 5 to the limit surface 17 to be equal to the screw-in depth of the first loading screw 13, the screw-in depth of the first loading screw 13 is indirectly controlled by controlling the height of the downward movement of the screwdriver head 16. Even if the electric screwdriver has an inertia delay, due to the limitation of the upper surface of the limit block 5, the screwdriver head 16 will not continue to move downward, and the first loading screw 13 will not continue to screw downward, thereby ensuring the screw-in depth of the first loading screw 13 and ensuring the installation accuracy.

[0031] Similarly, when the second loading screw 15 is screwed into the second reserved hole 14, the screwdriver head 16 moves downward. When the limiting surface 17 of the screwdriver head 16 abuts the upper surface of the limiting block 5, the screwdriver head 16 is stuck and cannot move downward any further, thereby preventing the second loading screw 15 from being pressed downward. Therefore, the second loading screw 15 will not be screwed in any further. The height of the screwdriver head 16 protruding from the upper surface of the limiting block 5 to the limiting surface 17 is equal to the screw-in depth of the second loading screw 15. By controlling the downward movement height of the screwdriver head 16, the screw-in depth of the second loading screw 15 is indirectly controlled, thereby ensuring the screw-in depth of the second loading screw 15 and the installation accuracy. Through this tooling, the assembly quality is improved and the production efficiency is improved.

[0032] In this embodiment, a limit block groove 18 is provided on the lower surface of the limit block 5, and the upper surface of the pressure arm 3 can be snapped into the limit block groove 18. By providing the limit block groove 18, the upper surface of the pressure arm 3 is snapped into the limit block groove 18. When an electric tool such as an electric screwdriver is used to install the loading screws at both ends of the limit block 5, the limit block 5 is prevented from shaking left and right, making the structure more stable and ensuring the screw-in depth of the loading screws. Similarly, a support block groove 19 is provided on the upper surface of the support block 6, and the lower surface of the pressure arm 3 can be snapped into the support block groove 19. By providing the support block groove 19, the lower surface of the pressure arm 3 is snapped into the support block groove 19, avoiding the support block 6 from shaking left and right when the loading screws are pressed down, further ensuring the stability of the structure and the accuracy of the screw-in depth of the loading screws.

[0033] In this embodiment, the bottom surface of the support block 6 is an inclined curved surface that matches the upper surface of the lamp housing 4, allowing it to better fit the lamp housing 4 and provide better and more stable support when installing the mounting screws. The support block 6 is made of a material with good elasticity and high strength, so that the support block 6 can provide sufficient support force while not scratching the surface of the lamp housing 4 when in contact with the lamp housing 4.

[0034] In this embodiment, a fixing plate 20 is fixedly connected to the upper surface of the cylinder body of the angle cylinder 1. A fixing plate groove 21 is provided in the middle portion of the fixing plate 20, extending downward from the upper surface. When the angle cylinder 1 is activated, the pressure arm 3 rotates and presses down above the vehicle body shell, and eventually presses down into the fixing plate groove 21, with the lower surface of the pressure arm 3 able to abut the bottom surface of the fixing plate groove 21. The fixing plate groove 21 guides the pressure arm 3, ensuring its position after rotation, thereby ensuring the position of the first through hole 10 and the second through hole 11 on the limit block 5, and thus ensuring the verticality of the loading screw. At the same time, the fixing plate groove 21 supports the end of the pressure arm 3 closest to the piston rod 2, ensuring the stability of the structure when downward pressure is applied to the other end of the pressure arm 3. The longitudinal cross-section of the fixing plate groove 21 is funnel-shaped, with a large opening at the upper end and a small opening at the lower end, making it easier for the pressure arm 3 to enter the fixing plate groove 21, and improving the reliability of the device.

[0035] In this embodiment, the fixed end of the cornering cylinder 1 is connected to a connecting plate 22, which is connected to a support column 23, which is connected to a base plate 24. This ensures that the fixture is supported by the ground and that the installation height of the fixture matches the fixed height of the headlight housing 4, facilitating its operation. The cornering cylinder 1 is connected to a controller (not shown) that controls its start and stop.

[0036] The utility model provides a height control tool for the mounting screws on a headlight. In a specific application process, the controller activates the angular cylinder 1. The piston rod 2 of the angular cylinder 1 drives the pressure arm 3 to rotate 90 degrees to the left and press the pressure arm 3 downward, so that the limit block 5 moves above the headlight housing 4, and the support block 6 abuts the upper surface of the headlight housing 4. Then, the first mounting screw 13 is placed in the first reserved hole 12 of the headlight housing 4. The lower end of the screwdriver bit 16 is passed through the first through hole 10 and engaged with the first mounting screw 13. At the same time, the required screw-in depth of the first mounting screw 13 is set to be equal to the height of the screwdriver bit 16 from the upper surface of the protruding limit block 5 to the limit surface 17. Then start the electric screwdriver and press down the screwdriver head 16, which in turn presses down the first mounting screw 13, causing the first mounting screw 13 to be screwed into the first reserved hole 12. When the limiting surface 17 of the screwdriver head 16 abuts the upper surface of the limiting block 5, the screwdriver head 16 stops pressing down, the first mounting screw 13 stops screwing in, and the first mounting screw 13 is screwed in to the required screwing depth, thus completing the installation of the first mounting screw 13. Similarly, place the second mounting screw 15 on the second reserved hole 14 of the lamp housing 4, pass the lower end of the screwdriver head 16 through the second through hole 11, and engage with the second mounting screw 15. The required screwing depth of the second mounting screw 15 is set to be equal to the height of the screwdriver head 16 from the upper surface of the protruding limiting block 5 to the limiting surface 17. Then, the electric screwdriver is started, and the screwdriver head 16 is pressed down, which in turn presses down the second mounting screw 15, causing the second mounting screw 15 to be screwed into the second reserved hole 14. When the limiting surface 17 of the screwdriver head 16 abuts against the upper surface of the limiting block 5, the screwdriver head 16 stops pressing down, and the second mounting screw 15 stops screwing in. The second mounting screw 15 is screwed in to the required screwing depth, thus completing the installation of the second mounting screw 15. This tool ensures the screwing depth of the mounting screws on the headlight when using an electric screwdriver, ensures installation accuracy, and improves assembly quality and production efficiency.

[0037] This utility model uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core concept of this utility model. At the same time, for those skilled in the art, according to the concept of this utility model, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A height control tool for mounting screws on vehicle lights, characterized by: The invention comprises an angle cylinder, wherein the upper end of the angle cylinder is movably connected to a piston rod, and the piston rod is connected to a pressure arm. When the angle cylinder is in a natural state, the pressure arm is away from the lamp housing. When the angle cylinder is in a working state, the piston rod drives the pressure arm to rotate and press down to the top of the lamp housing. The upper surface of the end of the pressure arm away from the piston rod is connected to a limit block, and the two ends of the limit block are respectively provided with a first vertical through hole and a second through hole, the first through hole corresponds to the first reserved hole on the lamp housing, and the first reserved hole is used to threadably connect a first mounting screw, and the second through hole corresponds to the second reserved hole on the lamp housing, and the second reserved hole is used to threadably connect a second mounting screw; The first loading screw and the second loading screw are screwed into the corresponding first reserved hole and the second reserved hole through the screwdriver head of the pressing device, and the lower end of the screwdriver head is matched with the first loading screw after passing through the first through hole, and the upper end of the screwdriver head protrudes from the upper surface of the limit block, or the lower end of the screwdriver head is matched with the second loading screw after passing through the second through hole, and the upper end of the screwdriver head protrudes from the upper surface of the limit block, and a limiting surface is provided at the upper end of the screwdriver head, and the diameter of the limiting surface is larger than the diameter of the first through hole or the second through hole, and the height of the screwdriver head protruding from the upper surface of the limit block to the limiting surface is equal to the screwing depth of the first loading screw or the second loading screw.

2. The height control tool for mounting screws on vehicle lights according to claim 1, characterized in that: The lower surface of the pressure arm at one end away from the piston rod is connected to a support block, a support block mounting hole is provided in the middle of the support block, a pressure arm mounting hole is provided at the end of the pressure arm, and a limit block mounting hole is provided in the middle of the limit block. The positions of the support block mounting hole, the pressure arm mounting hole and the limit block mounting hole correspond to each other one by one, and the mounting shaft can pass through the limit block mounting hole, the pressure arm mounting hole and the support block mounting hole in sequence, so that the limit block, the pressure arm and the support block are fixedly connected as one.

3. The height control tool for mounting screws on vehicle lights according to claim 1, characterized in that: A limit block groove is provided on the lower surface of the limit block, and the upper surface of the pressure arm can be snapped into the limit block groove.

4. The height control tool for mounting screws on vehicle lights according to claim 2, characterized in that: The upper surface of the support block is provided with a support block groove, and the lower surface of the pressure arm can be snapped into the support block groove.

5. The height control tool for mounting screws on vehicle lights according to claim 2, characterized in that: The bottom surface of the support block is an inclined curved surface and matches the upper surface of the vehicle lamp housing.

6. The height control tool for mounting screws on vehicle lights according to claim 2, characterized in that: The support block is made of a material with good elasticity and high strength.

7. The height control tool for mounting screws on vehicle lights according to claim 1, characterized in that: A fixing plate is fixedly connected to the upper surface of the cylinder body of the angle cylinder, and a fixing plate groove is provided in the middle part of the fixing plate extending downward from the upper surface. The pressure arm can be pressed down into the fixing plate groove, and the lower surface of the pressure arm can abut against the bottom surface of the fixing plate groove.

8. The height control tool for mounting screws on vehicle lights according to claim 7, characterized in that: The longitudinal section of the fixing plate groove is funnel-shaped with a large opening at the upper end and a small opening at the lower end.

9. The height control tool for mounting screws on vehicle lights according to claim 1, characterized in that: The model of the angle cylinder is selected from MKB20-10LZ or MKB20-10RZ, and the pressing device is an electric screwdriver.

10. The height control tool for mounting screws on vehicle lights according to claim 1, characterized in that: The fixed end of the corner cylinder is connected to the connecting plate, the connecting plate is connected to the supporting column, the supporting column is connected to the bottom plate, and the corner cylinder is connected to a controller, and the controller controls the start and stop of the corner cylinder.

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