A mold size measuring device and method for vehicle lamp injection mold processing

Abstract

The application relates to the technical field of size measurement, and discloses a mold size measurement device and method for vehicle lamp injection mold processing, which comprises a workbench. The light supplementing lamp can flexibly adjust the irradiation range according to the complex structure of the vehicle lamp injection mold and the measurement requirement, cooperates with the mold to realize multidirectional movement on the turntable, and can provide continuous and adaptive light when the special parts such as deep cavities and corners of the mold are rotated to the measurement area along with the turntable, so that the problem of insufficient illumination or shadow blocking is avoided, the definition of image acquisition is obviously improved, and the foundation for improving the measurement accuracy is laid. Under the synergistic action of the synchronous shaft, the synchronous plate and the rocker arm, the turntable can not only rotate by itself, but also can continuously change the deflection angle in the rotating process, cooperates with the linkage of the vortex-shaped linear guide rail and the ejector rod, realizes multidimensional and dead-angle-free display of the mold, solves the problem of measurement dead angle caused by single movement of the existing mold bearing mechanism, and can comprehensively present each measurement surface of the mold.

Description

Technical Field

[0001] This invention belongs to the field of dimensional measurement technology, specifically, it relates to a mold dimensional measurement device and method for processing automotive lamp injection molds. Background Technology

[0002] In the manufacturing process of automotive headlight injection molds, accurate measurement of mold dimensions is a crucial step in ensuring the quality of automotive headlight products. With the rapid development of the automotive industry, headlight designs are becoming increasingly complex, and the requirements for mold dimensional accuracy are constantly increasing. This necessitates efficient and precise measuring devices and methods to meet production demands.

[0003] Currently, most devices used for measuring the dimensions of automotive headlight injection molds employ image measurement technology. These devices capture images of the mold and analyze the data to obtain various dimensional parameters. However, regarding light source configuration, while some devices allow adjustment of the light angle, the installation position of the light source is relatively fixed and cannot be flexibly moved according to the complex structure of the mold and measurement requirements. This leads to insufficient lighting or shadow obstruction when measuring special areas such as deep cavities and corners of the mold, affecting the clarity of image acquisition and thus reducing measurement accuracy. Furthermore, the mold support mechanism is often fixed or can only achieve rotational movement in a single direction, making it difficult to fully display all measurement surfaces of the mold and easily creating measurement blind spots.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A mold dimension measuring device for processing automotive lamp injection molds includes a worktable.

[0007] A turntable is rotatably mounted on the workbench, and a clamping assembly for holding the mold is mounted on the turntable. An image measuring instrument and a supplementary light for measurement are also mounted on the workbench.

[0008] A synchronous shaft is rotatably mounted on the center of rotation of the turntable. A synchronous plate is vertically inserted into the synchronous shaft, and a compression spring is installed between the synchronous plate and the synchronous shaft. A rocker arm is rotatably mounted on the synchronous plate and is rotatably connected to the bottom of the turntable. The rocker arm is used to drive the turntable to rotate synchronously with the synchronous shaft and change the measurement position.

[0009] A top rod is slidably mounted on the bottom of the synchronization plate, and a guide rail is mounted on the worktable. The guide rail is in the shape of a spiral, and the depth of the guide rail near the center is lower than the depth of the outer side. The top rod is in close contact with the guide rail. The top rod is used to drive the synchronization plate to move downward and drive the turntable to deflect at a constantly changing angle through the rocker arm. It is combined with the rotation of the turntable to reduce dead angles and improve measurement accuracy.

[0010] In a preferred embodiment of the present invention, four adjusting rods are screwed onto the bottom of the workbench, and pads are installed at the bottom of the four adjusting rods. The pads are in the shape of bosses. A first bracket is installed on the housing of the image measuring instrument and is mounted on the workbench. A second bracket is installed on the housing of the fill light and is mounted on the side wall of the workbench.

[0011] In a preferred embodiment of the present invention, the bottom of the worktable is provided with an inner groove, a base plate for sealing is installed at the bottom of the inner groove, a drive motor is installed on the inner groove, a mounting plate is installed on the housing of the drive motor, the mounting plate is connected to the inner groove, the output end of the drive motor is connected to the synchronous shaft, a controller is installed on the worktable, the controller is connected to the image measuring instrument, the fill light and the drive motor respectively, and the image measuring instrument is connected to the signal processor.

[0012] In a preferred embodiment of the present invention, three pairs of arc-shaped guide plates are installed around the worktable, and the inner sidewall of each pair of arc-shaped guide plates is in contact with the turntable. A connecting sleeve is installed at the rotation center of the turntable, and a ball bearing is movably arranged inside the connecting sleeve. The ball bearing is connected to the synchronous shaft, and the curvature center of the arc-shaped guide plate is the same as the center of the ball bearing. The synchronous shaft is rotatably connected to the worktable.

[0013] In a preferred embodiment of the present invention, a pair of counterweights are installed at the bottom of the turntable. The pair of counterweights are used to guide the turntable and the center of gravity of the mold on the turntable to be located on one side of the top rod. Anti-slip grooves are provided on the turntable.

[0014] In a preferred embodiment of the present invention, the clamping assembly includes a pair of clamping plates that are slidably disposed on a turntable. A positioning seat is mounted on the turntable, and a rod is movably inserted into the positioning seat. One end of the rod is connected to the side wall of the clamping plate, and the other end of the rod is mounted with a plate. The plate is used to prevent the rod from separating from the positioning seat. A locking bolt is rotatably screwed onto the positioning seat, and the end of the locking bolt is rotatably connected to the clamping plate.

[0015] In a preferred embodiment of the present invention, a collar is installed at one end of the synchronization plate, the collar is slidably mounted on a slide rail mounted on the side wall of the synchronization shaft, and a limit block is installed at the bottom of the slide rail. A partition is installed on the synchronization shaft, and a compression spring is sleeved on the synchronization shaft between the partition and the collar. One end of the compression spring is engaged with the partition, and the other end of the compression spring is engaged with the collar.

[0016] In a preferred embodiment of the present invention, a limiting rod is installed at the other end of the synchronization plate, a limiting plate is installed on the top of the limiting rod, the cross-sectional area of ​​the limiting plate is larger than the cross-sectional area of ​​the limiting rod, a guide rail is installed on the worktable, the guide rail is annular, the limiting rod is slidably disposed on the guide rail, a synchronization frame is installed on the side wall of the limiting rod, and the synchronization frame is connected to the side wall of the synchronization shaft.

[0017] In a preferred embodiment of the present invention, a roller is installed at the bottom of the top rod, and the roller is slidably connected to the guide rail. A slider is installed at the top of the top rod, and a pair of slide plates are slidably arranged on the side wall of the slider. A light rod is movably installed through the slide plate, and a connecting seat is installed at both ends of the light rod. The connecting seat is installed at the bottom of the synchronization plate. A storage spring is sleeved on the light rod. One end of the storage spring is snapped onto the connecting seat, and the other end of the storage spring is snapped onto the slide plate.

[0018] A method for measuring mold dimensions in automotive headlight injection mold processing, comprising the following steps:

[0019] Step 1: Adjust the level of the device. By rotating the four adjusting rods at the bottom of the worktable, the worktable is made to be level. The protruding pads at the bottom of the adjusting rods enhance the overall stability and ensure that the measurement reference surface is flat.

[0020] Step 2: Fix the mold to be measured. Place the car light injection mold on the turntable, rotate the locking bolt on the positioning seat to drive the clamping plate to slide along the turntable, and at the same time, the insert rod moves synchronously in the positioning seat until the clamping plate clamps the mold. The inserting plate prevents the insert rod from separating from the positioning seat, ensuring that the mold does not shift during the measurement process.

[0021] Step 3: Start the measuring device. Start the image measuring instrument, supplementary light and drive motor through the controller. The supplementary light provides sufficient light for the measurement area. The image measuring instrument is aligned with the mold to collect data. The drive motor drives the synchronous shaft to rotate. The synchronous shaft drives the synchronous plate to rotate through the slide rail and collar. The synchronous plate then drives the turntable to rotate through the rocker arm.

[0022] Step 4: Achieve multi-angle measurement. When the synchronous plate rotates, its bottom push rod slides on the spiral guide rail. Since the depth of the center position of the guide rail is lower than that of the outer side, the push rod is raised or lowered according to the depth of the guide rail, thereby driving the synchronous plate to move up and down. The compression spring expands and contracts in coordination with the movement of the synchronous plate. The up and down movement of the synchronous plate causes the turntable to continuously change its deflection angle during rotation through the rocker arm. Combined with the rotation of the turntable, the mold can be displayed from multiple angles. At the same time, components such as the arc-shaped guide plate, counterweight, and limit rod ensure the stability of the movement of the turntable and the synchronous plate.

[0023] Step 5: Data acquisition and processing. The image measuring instrument captures images of the mold at different angles and positions in real time and transmits the data to the signal processor for analysis and processing. The controller coordinates the operation rhythm of each component to ensure that the measurement process is continuous and efficient, and finally obtains the accurate dimensional data of the automotive headlight injection mold.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] The supplementary light of this invention can flexibly adjust the illumination range according to the complex structure and measurement requirements of the automotive headlight injection mold, in conjunction with the multi-directional movement of the mold on the turntable. When special parts such as deep cavities and corners of the mold rotate to the measurement area with the turntable, the supplementary light can provide continuous and appropriate light, avoiding the problems of insufficient lighting or shadow obstruction, significantly improving the clarity of image acquisition, and laying the foundation for improving measurement accuracy. Furthermore, under the coordinated action of the synchronous shaft, synchronous plate, and rocker arm, the turntable can not only achieve self-rotation, but also continuously change the deflection angle during rotation. With the linkage of the vortex guide rail and the ejector rod, it realizes multi-dimensional and blind-angle display of the mold, effectively solving the measurement blind-angle problem caused by the single movement of the existing mold bearing mechanism. It can fully present all measurement surfaces of the mold, and at the same time, there is no need to loosen the clamping components to adjust the mold during the measurement process. The precise adjustment of the mold position and angle can be completed solely through the mechanical transmission of the device itself, greatly simplifying the operation process.

[0026] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0027] In the attached diagram:

[0028] Figure 1 A three-dimensional diagram of a mold dimension measuring device used in the processing of automotive lamp injection molds;

[0029] Figure 2 This is a front view of a mold dimension measuring device used in automotive lamp injection mold processing;

[0030] Figure 3 A bottom view of a mold dimension measuring device used in automotive lamp injection mold processing;

[0031] Figure 4 This is an internal view of the groove of a mold dimension measuring device used in the processing of automotive lamp injection molds;

[0032] Figure 5 A partial view of a mold dimension measuring device used in automotive lamp injection mold processing. Figure 1 ;

[0033] Figure 6 A mold dimension measuring device for processing automotive lamp injection molds. Figure 5 Enlarged view of point A in the middle;

[0034] Figure 7 A partial view of a mold dimension measuring device used in automotive lamp injection mold processing. Figure 2 ;

[0035] Figure 8 A mold dimension measuring device for processing automotive lamp injection molds. Figure 7 Enlarged view at point B in the middle;

[0036] Figure 9 A partial view of a mold dimension measuring device used in automotive lamp injection mold processing. Figure 3 ;

[0037] Figure 10 A mold dimension measuring device for processing automotive lamp injection molds. Figure 9 Enlarged view at point B in the middle;

[0038] Figure 11 A partial view of a mold dimension measuring device used in automotive lamp injection mold processing. Figure 4 .

[0039] In the picture:

[0040] 1. Workbench; 11. Adjusting rod; 111. Pad; 12. Image measuring instrument; 121. First support; 13. Fill light; 131. Second support; 14. Controller; 15. Base plate; 151. Inner groove;

[0041] 2. Turntable; 21. Arc-shaped guide plate; 211. Counterweight; 22. Clamping plate; 221. Positioning seat; 222. Insert rod; 223. Insert plate; 224. Locking bolt; 23. Synchronous shaft; 231. Drive motor; 232. Mounting plate; 233. Ball bearing; 234. Connecting sleeve;

[0042] 3. Synchronizing plate; 31. Collar; 311. Slide rail; 312. Limiting block; 313. Partition plate; 314. Compression spring; 32. Limiting rod; 321. Limiting plate; 322. Guide rail; 323. Synchronizing frame; 33. Top rod; 331. Roller; 332. Guide rail; 34. Slider; 341. Slide plate; 342. Smooth rod; 343. Energy storage spring; 344. Connecting seat;

[0043] 35. Rocker arm. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0045] Example 1:

[0046] like Figures 1 to 11 As shown, a mold size measuring device for processing automotive lamp injection molds includes a worktable 1.

[0047] A turntable 2 is rotatably mounted on the workbench 1. A clamping assembly for holding the mold is mounted on the turntable 2. An image measuring instrument 12 and a supplementary light 13 for measurement are also mounted on the workbench 1.

[0048] A synchronous shaft 23 is rotatably mounted on the center of rotation of the turntable 2. A synchronous plate 3 is vertically inserted into the synchronous shaft 23, and a compression spring 314 is installed between the synchronous plate 3 and the synchronous shaft 23. A rocker arm 35 is rotatably mounted on the synchronous plate 3, and the rocker arm 35 is rotatably connected to the bottom of the turntable 2. The rocker arm 35 is used to drive the turntable 2 to rotate synchronously with the synchronous shaft 23 and change the measurement position.

[0049] A top rod 33 is slidably mounted on the bottom of the synchronization plate 3, and a guide rail 332 is mounted on the worktable 1. The guide rail 332 is in the shape of a spiral, and the depth of the guide rail 332 near the center is lower than the depth of the outer side. The top rod 33 is in close contact with the guide rail 332. The top rod 33 is used to drive the synchronization plate 3 to move down and drive the turntable 2 to continuously change the deflection angle through the rocker arm 35. It is combined with the rotation of the turntable 2 to reduce dead angles and improve measurement accuracy.

[0050] like Figures 1 to 11As shown, in a specific embodiment, four adjusting rods 11 are screwed onto the bottom of the worktable 1, and pads 111 are installed at the bottom of the four adjusting rods 11. The pads 111 are in the shape of bosses. A first bracket 121 is installed on the housing of the image measuring instrument 12, and the first bracket 121 is mounted on the worktable 1. A second bracket 131 is installed on the housing of the supplementary light 13, and the second bracket 131 is mounted on the side wall of the worktable 1. The adjusting rods 11 can adjust the levelness of the worktable 1, the pads 111 enhance stability, and the first bracket 121 and the second bracket 131 provide stable support for the image measuring instrument 12 and the supplementary light 13, respectively, ensuring stable measurement work.

[0051] like Figures 1 to 11 As shown, further, the bottom of the worktable 1 has an inner groove 151, and a base plate 15 for sealing is installed at the bottom of the inner groove 151. A drive motor 231 is installed on the inner groove 151, and a mounting plate 232 is installed on the housing of the drive motor 231. The mounting plate 232 is connected to the inner groove 151. The output end of the drive motor 231 is connected to the synchronous shaft 23. A controller 14 is installed on the worktable 1. The controller 14 is connected to the image measuring instrument 12, the supplementary light 13, and the drive motor 231. The image measuring instrument 12 is connected to the signal processor. The inner groove 151 and the base plate 15 provide installation space for the drive motor 231 and play a sealing and protective role. The controller 14 realizes the coordinated work of various components, ensuring the automation and continuity of the measurement process.

[0052] Example 2:

[0053] The difference between the above embodiments and this embodiment is that: Figures 1 to 11 As shown, three pairs of arc-shaped guide plates 21 are installed around the worktable 1, and the inner wall of each pair of arc-shaped guide plates 21 is in contact with the turntable 2. A connecting sleeve 234 is installed at the rotation center of the turntable 2, and a ball bearing 233 is movably arranged inside the connecting sleeve 234. The ball bearing 233 is connected to the synchronous shaft 23, and the center of curvature of the arc-shaped guide plate 21 is the same as the center of the ball bearing 233. The synchronous shaft 23 is rotatably connected to the worktable 1. The arc-shaped guide plates 21 play a limiting and guiding role for the turntable 2, and the ball bearing 233 reduces the friction between the synchronous shaft 23 and the connecting sleeve 234, ensuring the stability and smoothness of the rotation of the turntable 2.

[0054] like Figures 1 to 11 As shown in the specific embodiment, a pair of counterweights 211 are installed at the bottom of the turntable 2. The pair of counterweights 211 are used to guide the turntable 2 and the center of gravity of the mold on the turntable 2 to be located on one side of the push rod 33. Anti-slip grooves are provided on the turntable 2. The counterweights 211 stabilize the center of gravity of the turntable 2 and the mold, and the anti-slip grooves increase the friction between the mold and the turntable 2, prevent the mold from sliding, and improve the stability of the measurement process.

[0055] like Figures 1 to 11As shown, the clamping assembly further includes a pair of clamping plates 22 slidably disposed on the turntable 2. A positioning seat 221 is mounted on the turntable 2, and a rod 222 is movably inserted into the positioning seat 221. One end of the rod 222 is connected to the side wall of the clamping plate 22, and the other end of the rod 222 is mounted with a plate 223. The plate 223 is used to prevent the rod 222 from separating from the positioning seat 221. A locking bolt 224 is rotatably screwed onto the positioning seat 221, and the end of the locking bolt 224 is rotatably connected to the clamping plate 22. By moving the clamping plate 22 through the locking bolt 224, molds of different sizes can be quickly clamped. The plate 223 prevents the rod 222 from disengaging from the positioning seat 221, ensuring the reliability of clamping and making the operation simple and convenient.

[0056] Example 3:

[0057] The difference between the above embodiments and this embodiment is that: Figures 1 to 11 As shown, a collar 31 is installed at one end of the synchronization plate 3. The collar 31 is slidably mounted on a slide rail 311 installed on the side wall of the synchronization shaft 23, and a limit block 312 is installed at the bottom of the slide rail 311. A partition plate 313 is installed on the synchronization shaft 23, and a compression spring 314 is sleeved on the synchronization shaft 23 between the partition plate 313 and the collar 31. One end of the compression spring 314 is engaged with the partition plate 313, and the other end of the compression spring 314 is engaged with the collar 31. The collar 31 slides on the slide rail 311, and in conjunction with the compression spring 314, realizes the up and down movement of the synchronization plate 3. The limit block 312 prevents the collar 31 from disengaging from the slide rail 311, ensuring the stability and reliability of the movement of the synchronization plate 3.

[0058] like Figures 1 to 11 As shown, in a specific embodiment, a limiting rod 32 is installed at the other end of the synchronization plate 3, and a limiting plate 321 is installed on the top of the limiting rod 32. The cross-sectional area of ​​the limiting plate 321 is larger than that of the limiting rod 32. A guide rail 322 is installed on the worktable 1. The guide rail 322 is annular, and the limiting rod 32 is slidably mounted on the guide rail 322. A synchronization frame 323 is installed on the side wall of the limiting rod 32, and the synchronization frame 323 is connected to the side wall of the synchronization shaft 23. The limiting rod 32 slides on the guide rail 322, and works with the synchronization frame 323 to ensure that the synchronization plate 3 does not deviate when rotating. The limiting plate 321 prevents the limiting rod 32 from disengaging from the guide rail 322, further enhancing the stability of the movement of the synchronization plate 3.

[0059] like Figures 1 to 11As shown, furthermore, a roller 331 is installed at the bottom of the top rod 33, and the roller 331 is slidably connected to the guide rail 332. A slider 34 is installed at the top of the top rod 33, and a pair of sliding plates 341 are slidably arranged on the side wall of the slider 34. A smooth rod 342 is movably installed through the sliding plate 341, and connecting seats 344 are installed at both ends of the smooth rod 342. The connecting seats 344 are installed at the bottom of the synchronization plate 3. A storage spring 343 is sleeved on the smooth rod 342. One end of the storage spring 343 is snapped onto the connecting seat 344, and the other end of the storage spring 343 is snapped onto the sliding plate 341. The roller 331 reduces the friction between the top rod 33 and the guide rail 332, the storage spring 343 facilitates later reset, and ensures accurate transmission of changes in the height of the top rod 33, providing a guarantee for the precise adjustment of the angle of the turntable 2.

[0060] This invention also discloses a method for measuring mold dimensions in automotive lamp injection mold processing, the steps of which are as follows:

[0061] Step 1: Adjust the level of the device. By rotating the four adjusting rods 11 at the bottom of the worktable 1, the worktable 1 is made to be in a level state. The protruding pads 111 at the bottom of the adjusting rods 11 enhance the overall stability and ensure that the measurement reference surface is flat.

[0062] Step 2: Fix the mold to be measured. Place the car light injection mold on the turntable 2. Rotate the locking bolt 224 on the positioning seat 221 to drive the clamping plate 22 to slide along the turntable 2. At the same time, the insertion rod 222 moves synchronously in the positioning seat 221 until the clamping plate 22 clamps the mold. The insertion plate 223 prevents the insertion rod 222 from separating from the positioning seat 221, ensuring that the mold does not shift during the measurement process.

[0063] Step 3: Start the measuring device. The image measuring instrument 12, the supplementary light 13 and the drive motor 231 are started through the controller 14. The supplementary light 13 provides sufficient light for the measuring area. The image measuring instrument 12 is aligned with the mold to collect data. The drive motor 231 drives the synchronous shaft 23 to rotate. The synchronous shaft 23 drives the synchronous plate 3 to rotate through the slide rail 311 and the collar 31. The synchronous plate 3 then drives the turntable 2 to rotate through the rocker arm 35.

[0064] Step 4: Achieve multi-angle measurement. When the synchronous plate 3 rotates, the push rod 33 at its bottom slides on the spiral guide rail 332. Since the center of the guide rail 332 is lower than the outer side, the push rod 33 is raised or lowered as the depth of the guide rail 332 changes, thereby driving the synchronous plate 3 to move up and down. The compression spring 314 extends and retracts in coordination with the movement of the synchronous plate 3. The up and down movement of the synchronous plate 3 causes the turntable 2 to continuously change its deflection angle during rotation through the rocker arm 35. Combined with the rotation of the turntable 2, the mold can be displayed from multiple angles. At the same time, the arc guide plate 21, the counterweight 211, the limit rod 32 and other components ensure the stability of the movement of the turntable 2 and the synchronous plate 3.

[0065] Step 5: Data acquisition and processing. The image measuring instrument 12 captures images of the mold at different angles and positions in real time and transmits the data to the signal processor for analysis and processing. The controller 14 coordinates the operation rhythm of each component to ensure that the measurement process is continuous and efficient, and finally obtains the accurate dimensional data of the automotive headlight injection mold.

[0066] The implementation principle of the mold size measuring device for automotive lamp injection mold processing according to the present invention is as follows:

[0067] Before starting work, adjust the overall level by adjusting the four adjusting rods 11 at the bottom of the worktable 1. The adjusting rods 11 are screwed into the worktable 1, and the height can be changed when rotated. The bottom boss-shaped pad 111 enhances stability and ensures that the measurement reference surface is flat. Then, place the car light injection mold to be measured on the turntable 2 and fix it by the clamping assembly: in the clamping assembly, rotate the locking bolt 224 on the positioning seat 221. The end of the locking bolt 224 is connected to the clamping plate 22 by rotation, which can directly drive the clamping plate 22 to slide along the turntable 2. At the same time, the insertion rod 222 moves synchronously in the positioning seat 221. After the clamping plate 22 clamps the mold, the insertion plate 223 can prevent the insertion rod 222 from disengaging from the positioning seat 221, ensuring that the mold does not shift during the measurement process.

[0068] After the device is started, the controller 14 coordinates the operation of the image measuring instrument 12, the supplementary light 13, and the drive motor 231. The supplementary light 13 is fixed to the side wall of the worktable 1 via the second bracket 131, providing sufficient and uniform light to the measurement area and avoiding shadows that affect measurement accuracy. The image measuring instrument 12 is mounted on the worktable 1 via the first bracket 121, aligned with the mold on the turntable 2, and ready to collect dimensional data. The drive motor 231 is fixed in the inner groove 151 at the bottom of the worktable 1 via the mounting plate 232. Its output end drives the synchronous shaft 23 to rotate. When the synchronous shaft 23 rotates, the slide rail 311 on its side wall drives the collar 31 to rotate synchronously. Since the collar 31 is connected to the synchronous plate 3, the rotation of the synchronous shaft 23 will directly drive the synchronous plate 3 to rotate.

[0069] The rocker arm 35, which is rotatably mounted on the synchronization plate 3, is rotatably connected to the bottom of the turntable 2. During the rotation of the synchronization plate 3, the rocker arm 35 will move accordingly, thereby driving the turntable 2 to rotate. That is, the synchronization plate 3 drives the turntable 2 to rotate through the rocker arm 35.

[0070] The push rod 33 at the bottom of the synchronization plate 3 is in contact with the spiral guide rail 332 on the surface of the worktable 1. The depth of the guide rail 332 near the center is lower than that on the outside. When the push rod 33 rotates with the synchronization plate 3 around the synchronization shaft 23, it will move from the outside to the inside or from the inside to the outside along the spiral guide rail 332. Due to the change in the depth of the guide rail 332, the push rod 33 will be gradually raised or lowered. The roller 331 at the bottom of the push rod 33 reduces friction with the guide rail 332, ensuring smooth movement. At the same time, the slider 34 at the top of the push rod 33 is slidably connected to the guide rod 342 through the slide plate 341. The storage spring 343 on the guide rod 342 always pushes the slide plate 341, so that the push rod 33 is tightly in contact with the guide rail 332, ensuring accurate transmission of height changes.

[0071] The height change of the push rod 33 causes the synchronous plate 3 to move up and down: when the push rod 33 moves inward along the guide rail 332 (deepening), the push rod 33 pushes the synchronous plate 3 upward, and the compression spring 314 is compressed by the collar 31 and the partition plate 313; when the push rod 33 moves outward (deepening), the compression spring 314 resets and pushes the synchronous plate 3 downward. The up and down movement of the synchronous plate 3 is transmitted to the turntable 2 through the rocker arm 35: the two ends of the rocker arm 35 are rotatably connected to the bottom of the synchronous plate 3 and the turntable 2 respectively. When the synchronous plate 3 moves up and down, the tilt angle of the rocker arm 35 changes, which in turn causes the turntable 2 to continuously change its deflection angle during rotation. At this time, the turntable 2 achieves multi-directional rotation under the combined action of its own rotation and the angle deflection driven by the rocker arm 35. With the help of the arc-shaped guide plates 21 around (whose curvature center is consistent with the center of the synchronous shaft 23) to limit and guide the turntable 2, the rotation is stable and shaking is avoided.

[0072] During the rotation of turntable 2, the counterweight 211 at the bottom keeps the center of gravity of turntable 2 and mold always biased towards the top rod 33, further enhancing the stability of rotation; the limiting rod 32 at the other end of the synchronous plate 3 slides along the annular guide rail 322, and the synchronous frame 323 connects the limiting rod 32 and the synchronous shaft 23 to ensure that the synchronous plate 3 does not deviate when rotating. The image measuring instrument 12 captures images of the mold at different angles and positions in real time, transmits the data to the signal processor for analysis and processing, and the controller 14 coordinates the operating rhythm of each component according to the preset program, making the measurement process continuous and efficient.

[0073] By combining the rotation of the turntable 2 with the angle deflection, every surface and detail of the mold can be captured by the image measuring instrument 12, effectively reducing measurement blind spots. The assistance of the supplementary light 13, the stable mechanical structure, and the precise transmission design together ensure the accuracy of the measurement data, ultimately achieving efficient and accurate measurement of the dimensions of the automotive headlight injection mold.

Claims

1. A mold dimension measuring device for processing automotive lamp injection molds, comprising a worktable (1), characterized in that: A turntable (2) is rotatably mounted on the workbench (1). A clamping assembly for clamping the mold is mounted on the turntable (2). An image measuring instrument (12) and a supplementary light (13) for measurement are also mounted on the workbench (1). The turntable (2) is rotatably mounted with a synchronous shaft (23) at its rotation center. A synchronous plate (3) is vertically inserted into the synchronous shaft (23), and a compression spring (314) is installed between the synchronous plate (3) and the synchronous shaft (23). A rocker arm (35) is rotatably mounted on the synchronous plate (3), and the rocker arm (35) is rotatably connected to the bottom of the turntable (2). The rocker arm (35) is used to drive the turntable (2) to rotate synchronously with the synchronous shaft (23) and change the measurement position. The bottom of the synchronization plate (3) is slidably provided with a top rod (33), and a guide rail (332) is installed on the worktable (1). The guide rail (332) is in the shape of a spiral, and the depth of the guide rail (332) near the center is lower than the depth of the outer side. The top rod (33) is in close contact with the guide rail (332). The top rod (33) is used to drive the synchronization plate (3) to move down and drive the turntable (2) to change its deflection angle continuously through the rocker arm (35). It is combined with the rotation of the turntable (2) to reduce dead angles and improve measurement accuracy.

2. The mold dimension measuring device for automotive lamp injection mold processing according to claim 1, characterized in that, The bottom of the workbench (1) is fitted with four adjusting rods (11) by screwing them together. The bottom of the four adjusting rods (11) is fitted with pads (111), which are in the shape of bosses. The outer shell of the image measuring instrument (12) is fitted with a first bracket (121), which is mounted on the workbench (1). The outer shell of the fill light (13) is fitted with a second bracket (131), which is mounted on the side wall of the workbench (1).

3. The mold dimension measuring device for automotive lamp injection mold processing according to claim 2, characterized in that, The worktable (1) has an inner groove (151) at the bottom. A base plate (15) for sealing is installed at the bottom of the inner groove (151). A drive motor (231) is installed on the inner groove (151). An mounting plate (232) is installed on the outer shell of the drive motor (231). The mounting plate (232) is connected to the inner groove (151). The output end of the drive motor (231) is connected to the synchronous shaft (23). A controller (14) is installed on the worktable (1). The controller (14) is connected to the image measuring instrument (12), the fill light (13), and the drive motor (231) respectively. The image measuring instrument (12) is connected to the signal processor.

4. The mold dimension measuring device for automotive lamp injection mold processing according to claim 1, characterized in that, The worktable (1) is equipped with three pairs of arc-shaped guide plates (21) around its perimeter, and the inner sidewall of each pair of arc-shaped guide plates (21) is in contact with the turntable (2). A connecting sleeve (234) is installed at the rotation center of the turntable (2). A ball bearing (233) is movably arranged inside the connecting sleeve (234), and the ball bearing (233) is connected to the synchronous shaft (23). The curvature center of the arc-shaped guide plate (21) is the same as the center of the ball bearing (233). The synchronous shaft (23) is rotatably connected to the worktable (1).

5. A mold dimension measuring device for processing automotive lamp injection molds according to claim 1, characterized in that, A pair of counterweights (211) are installed at the bottom of the turntable (2). The pair of counterweights (211) are used to guide the turntable (2) and the center of gravity of the mold on the turntable (2) to be located on one side of the top rod (33). Anti-slip grooves are provided on the turntable (2).

6. A mold dimension measuring device for processing automotive lamp injection molds according to claim 1, characterized in that, The clamping assembly includes a pair of clamping plates (22) that are slidably disposed on a turntable (2). A positioning seat (221) is installed on the turntable (2). A rod (222) is movably inserted into the positioning seat (221). One end of the rod (222) is connected to the side wall of the clamping plate (22), and the other end of the rod (222) is fitted with a plate (223). The plate (223) is used to prevent the rod (222) and the positioning seat (221) from separating. A locking bolt (224) is rotatably screwed onto the positioning seat (221), and the end of the locking bolt (224) is rotatably connected to the clamping plate (22).

7. A mold dimension measuring device for processing automotive lamp injection molds according to claim 1, characterized in that, A collar (31) is installed at one end of the synchronous plate (3). The collar (31) is slidably mounted on a slide rail (311) installed on the side wall of the synchronous shaft (23). A limit block (312) is installed at the bottom of the slide rail (311). A partition plate (313) is installed on the synchronous shaft (23). A compression spring (314) is sleeved on the synchronous shaft (23) between the partition plate (313) and the collar (31). One end of the compression spring (314) is engaged with the partition plate (313), and the other end of the compression spring (314) is engaged with the collar (31).

8. A mold dimension measuring device for processing automotive lamp injection molds according to claim 1, characterized in that, A limiting rod (32) is installed at the other end of the synchronization plate (3). A limiting plate (321) is installed on the top of the limiting rod (32). The cross-sectional area of ​​the limiting plate (321) is larger than that of the limiting rod (32). A guide rail (322) is installed on the worktable (1). The guide rail (322) is annular. The limiting rod (32) is slidably mounted on the guide rail (322). A synchronization frame (323) is installed on the side wall of the limiting rod (32), and the synchronization frame (323) is connected to the side wall of the synchronization shaft (23).

9. A mold dimension measuring device for processing automotive lamp injection molds according to claim 1, characterized in that, The top rod (33) is equipped with a roller (331) at its bottom, and the roller (331) is slidably connected to the guide rail (332). The top rod (33) is equipped with a slider (34), and a pair of slide plates (341) are slidably arranged on the side wall of the slider (34). A light rod (342) is movably installed through the slide plate (341), and a connecting seat (344) is installed at both ends of the light rod (342). The connecting seat (344) is installed at the bottom of the synchronization plate (3). A storage spring (343) is sleeved on the light rod (342). One end of the storage spring (343) is snapped onto the connecting seat (344), and the other end of the storage spring (343) is snapped onto the slide plate (341).

10. A method for measuring mold dimensions in automotive lamp injection mold processing, characterized in that, The mold dimension measuring device for processing automotive lamp injection molds, as described in any one of claims 1 to 9, comprises the following steps: Step 1: Adjust the level of the device. By rotating the four adjusting rods (11) at the bottom of the worktable (1), the worktable (1) is level. The protruding pads (111) at the bottom of the adjusting rods (11) enhance the overall stability and ensure that the measurement reference surface is flat. Step 2: Fix the mold to be measured. Place the car light injection mold on the turntable (2). Rotate the locking bolt (224) on the positioning seat (221) to drive the clamping plate (22) to slide along the turntable (2). At the same time, the insertion rod (222) moves synchronously in the positioning seat (221) until the clamping plate (222) clamps the mold. The insertion plate (223) prevents the insertion rod (222) from separating from the positioning seat (221) to ensure that the mold does not shift during the measurement process. Step 3: Start the measuring device. Start the image measuring instrument (12), supplementary light (13) and drive motor (231) through the controller (14). The supplementary light (13) provides sufficient light for the measuring area. The image measuring instrument (12) is aligned with the mold to collect data. The drive motor (231) drives the synchronous shaft (23) to rotate. The synchronous shaft (23) drives the synchronous plate (3) to rotate through the slide rail (311) and collar (31). The synchronous plate (3) then drives the turntable (2) to rotate through the rocker arm (35). Step 4: Achieve multi-angle measurement. When the synchronous plate (3) rotates, the push rod (33) at its bottom slides on the spiral guide rail (332). Since the center of the guide rail (332) is lower than the outer side, the push rod (33) is raised or lowered as the depth of the guide rail (332) changes, thereby driving the synchronous plate (3) to move up and down. The compression spring (314) expands and contracts in coordination with the movement of the synchronous plate (3). The up and down movement of the synchronous plate (3) causes the turntable (2) to continuously change its deflection angle during rotation through the rocker arm (35). Combined with the rotation of the turntable (2), the mold can be displayed from multiple angles. At the same time, the arc guide plate (21), the counterweight (211), and the limit rod (32) ensure the stability of the movement of the turntable (2) and the synchronous plate (3). Step 5: Data acquisition and processing. The image measuring instrument (12) captures images of the mold at different angles and positions in real time and transmits the data to the signal processor for analysis and processing. The controller (14) coordinates the running rhythm of each component to ensure that the measurement process is continuous and efficient, and finally obtains the accurate dimensional data of the car headlight injection mold.

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