A thickness detection device for mold

Abstract

The present invention discloses a thickness detection device for a mold, comprising a bracket, a detection platform is installed above the bracket, and a detection assembly is installed on the detection platform; the detection assembly comprises two symmetrically arranged support seats, a sliding guide rail is fixed between the two support seats, a detector is slidably connected in the sliding guide rail, the detector is placed vertically, the detector is between the upper mold base and the lower mold base, and two conical detection heads are slidably connected at both ends of the detector; the roller at the tip of the detection head is connected to a ball, and a support column three is provided inside the detection head, one end of the support column three is located in the opposite direction of the ball and is fixed, and the other end is fixed with a sliding plate one, a laser transmitter and a laser receiver are respectively installed on the two sliding plates one, and the laser receiver measures the distance between the two sliding plates one after receiving the laser; the device solves the problem that the current mold thickness process is cumbersome and cannot perform secondary processing on the workpiece surface in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of mold manufacturing and processing, and particularly relates to a thickness detection device for a mold. Background Art

[0002] In the field of mold manufacturing and processing, the thickness uniformity of molded workpieces is a key indicator of mold processing quality. Uneven thickness of molded workpieces can lead to stress concentration and insufficient strength during use, affecting the overall performance and service life of the product. Therefore, during the mold production process, it is of great practical significance to accurately measure the thickness of molded workpieces and perform appropriate surface treatment based on the test results to ensure that the workpiece thickness meets design requirements.

[0003] Currently, most existing mold thickness detection devices on the market have limitations. Traditional thickness detection methods, such as manual measurement with tools like calipers, are not only inefficient but also susceptible to human error, making measurement accuracy difficult to meet the inspection requirements of large-scale, high-precision mold production. While some automated inspection equipment has improved inspection efficiency to a certain extent, its functions are relatively limited, limiting it to simple workpiece thickness measurement and unable to process uneven thickness surfaces in real time.

[0004] Furthermore, for mold applications requiring extremely high workpiece surface quality, even if uneven thickness is detected, subsequent surface treatments such as grinding and filling with specialized equipment are still required, increasing the complexity and cost of the production process. Therefore, developing a mold thickness detection device that integrates both thickness detection and surface treatment has become a pressing technical challenge for the mold manufacturing industry.

[0005] In order to solve the above problems, a mold thickness detection device is proposed to solve the problem that the current mold thickness process is cumbersome and cannot perform secondary processing on the workpiece surface in real time. Summary of the Invention

[0006] The purpose of the present invention is to provide a thickness detection device for a mold to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a thickness detection device for a mold, comprising a bracket, a detection platform is installed above the bracket, and a detection component is installed on the detection platform;

[0008] The detection assembly includes two symmetrically arranged support bases, a sliding guide rail is fixed between the two support bases, a detector is slidably connected in the sliding guide rail, the detector is placed vertically, the detector is between the upper die base and the lower die base, and two conical detection heads are slidably connected at both ends of the detector;

[0009] The roller at the tip of the detection head is connected to a ball bearing, and a support column three is provided inside the detection head, one end of the support column three is located in the opposite direction of the ball bearing and is fixed, and a sliding plate one is fixed to the other end, and a laser transmitter and a laser receiver are respectively installed on the two sliding plates one, and the laser receiver measures the distance between the two sliding plates one after receiving the laser; the sliding plate one is slidably connected to the inner wall of the detector, and a spring one is fixed on the end surface of the sliding plate one close to the circular groove, and a limit block two is fixed to the other end of the spring one, and one side of the limit block two is fixed to the inner wall of the detector, and the other side is in contact with the support column three;

[0010] A circular mounting block is installed in the center of the ball of the detection head, a push rod is fixed in the circular mounting block, and a motor 1 is fixed at the output end of the push rod;

[0011] There are a number of grinding rods based on the spherical center array of the circular mounting block, and a fixing cylinder is fixed on the outer diameter of the grinding rod. The fixing cylinder is located in the middle of the grinding rod and a spring 2 is sleeved on the outer side;

[0012] One end of the second spring is in contact with the outer diameter of the circular mounting block, and the other end is fixed with a second sliding block, which passes through the outer surface of the ball and has the same curvature as the outer surface of the ball; one end of the plurality of polishing rods is located in the circular mounting block, and the other end passes through the second sliding block and is in contact with its outer surface;

[0013] When the ball rotates, several grinding rods pass under the output end of motor 1 during the rotation process. When grinding is required, the push rod pushes motor 1 so that the output end of the motor contacts the grinding rod, driving the grinding rod to rotate.

[0014] The present invention further describes that the interior of the support column three of the detection head is hollow, and a metal wire groove is fixed inside the support column three; the other end of the metal wire groove passes through the outer shell to form a metal wire feeding port, and a liquid tank is provided in the detection head, and a channel one is provided between the liquid tank and the metal wire groove, a heating device is fixed on the inside of the channel one, and a channel two is provided in the center of the heating device, and the channel two is communicated with the liquid tank.

[0015] The present invention further explains that a groove is provided on the circular groove surface of the detection head, and a channel five is provided inside the detection head, and the channel five connects the liquid groove with the circular groove; a channel three is provided on the inner wall of the ball, and the channel three passes through the shell of the ball and contacts the adjacent sliding block two respectively, and a channel four is provided on the outer surface of the sliding block two, and the channel four passes through the interior of the sliding block two and contacts the adjacent ball, and the channel three is located on the sliding path of the channel four, and the channel four is connected or closed with the channel three through the longitudinal movement of the sliding block two.

[0016] The present invention further describes that a telescopic protective shell is installed between the circular mounting block and the second sliding block. One end of the telescopic protective shell is fixed to the second sliding block, and the other end is slidably connected to the circular mounting block. The telescopic protective shell is located outside the second spring.

[0017] The present invention further states that a pulley is installed in the housing, and the pulley passes through the lower support column three and the metal wire channel and fits with the metal wire to push the metal wire to move.

[0018] The present invention further illustrates that a top plate is fixed above the detection platform through a support column 1, a cylinder 1 is fixed on the top plate, and an upper mold base is fixed on the cylinder output end of the cylinder 1 passing through the top plate.

[0019] The present invention further describes that a second cylinder is provided under the detection platform, the second cylinder is fixed to the bracket, a support plate one is fixed to the output end of the second cylinder, a plurality of support columns two are fixed on the support plate one, and the second support columns pass through the detection platform and a lower mold base is fixed thereon.

[0020] The present invention further describes that cylinder three is fixed on both sides of the detection platform, the output ends of the two cylinders three are fixed to the detection component, two sliding grooves are opened on the detection platform, the two sliding grooves are symmetrical based on the center of the detection platform, and the two support seats are respectively slidably connected in the two sliding grooves.

[0021] The present invention further describes a detection method for a mold thickness detection device,

[0022] Step 1: Start cylinder 3 to drive the detection assembly to move horizontally, and start the sliding guide to move the slide block 1 with the detector longitudinally to the edge of the mold; cylinder 1 drives the upper mold base and mold downward. When the upper mold base mold contacts the detector, it continues to press down to make the detector contact the upper mold of the lower mold base. The distance a between the two sliding plates is measured by the laser transmitter and receiver and is determined as the initial position of the upper mold base. Then, cylinder 1 moves the upper mold base upward, and cylinder 3 moves the detection assembly away from the upper mold base.

[0023] Step 2: Fix the mold to the upper and lower mold bases, place the blank in the lower mold base, and the cylinder drives the upper mold base downward. The upper and lower mold bases pressurize the blank to shape it;

[0024] Step 3: When the workpiece thickness needs to be checked after shaping, start cylinder three and the sliding guide rail to move the detector to the edge of the formed workpiece; cylinder one drives the upper die base and the mold downward. After the upper die base mold contacts the detector, it continues to press down, so that the detector contacts the formed workpiece on the lower die base. The distance b between the two sliding plates is obtained by laser, and the workpiece thickness is b - a; start cylinder three and the sliding guide rail to make the ball roll between the mold and the workpiece, record the change of b - a, and calculate the average thickness.

[0025] The present invention further illustrates that the step three specifically includes:

[0026] When the thickness is uneven: the heating device is started to melt the metal wire into liquid and enter the liquid tank, and the electromagnetic is turned on to prevent solidification and give it magnetism; when the sliding block 2 on the ball slides to the installation slot position, it slides in the opposite direction of the circular installation block under the action of spring 3, and when channel 3 and channel 4 are connected, the liquid metal enters the ball from channel 5, channel 3 and channel 4;

[0027] When the thickness is lower than the required thickness: the sliding block 2 slides downward under the elastic force of the spring 2, and when the channel 3 and the channel 4 are connected, the liquid metal in the ball flows out and gathers in the middle under the action of magnetism;

[0028] When the thickness is higher than the required thickness: the sliding block 2 slides upward, and the motor 1 is started to drive the grinding rod to rotate and grind the surface of the workpiece.

[0029] Compared with existing technologies, the present invention achieves the following advantages: The detection assembly, driven laterally by three cylinders and combined with longitudinal movement via sliding guides, can flexibly cover different mold positions and sizes, making it particularly suitable for edge detection of complex workpieces. The non-contact measurement system, consisting of a laser transmitter and receiver, avoids mechanical contact errors. The difference calculation method, which uses the initial distance a and the final distance b, significantly improves thickness detection accuracy.

[0030] Through its unique liquid metal filling mechanism, when the workpiece surface thickness is insufficient, a heating device melts the metal wire to form liquid metal, which is then driven by an electromagnetic coil to flow to the defective area. Under the influence of the magnetic field, the liquid metal automatically converges to fill the defect, solving the uneven thickness problem caused by localized shrinkage in traditional molds.

[0031] When workpiece thickness exceeds the specified limit, a motor inside the ball bearing drives the grinding rods to extend. Spring preload maintains contact pressure, enabling in-situ grinding correction. The grinding rod array design adapts to surfaces of varying curvatures, while a retractable protective cover effectively prevents metal chips from damaging precision components, improving grinding efficiency.

[0032] The conical detection head, combined with a ball bearing structure, ensures a close fit between the detector and the mold while minimizing contact damage to the workpiece. The elastic connection between the internal support column (three) and the sliding plate (one) allows the detection head to adapt to changes in mold height, maintaining a constant detection pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 It is a front view of the overall structure of an embodiment of the present invention;

[0036] Figure 3 is a side view of the overall structure of an embodiment of the present invention;

[0037] Figure 4 is a schematic structural diagram of a thickness detection component according to an embodiment of the present invention;

[0038] Figure 5 1 is a schematic diagram of the structure of a detector according to an embodiment of the present invention;

[0039] Figure 6 This is an embodiment of the present invention Figure 5 Schematic diagram of the enlarged structure of area A;

[0040] Figure 7 This is an embodiment of the present invention Figure 5 Schematic diagram of the enlarged structure of region B;

[0041] Figure 8 This is an embodiment of the present invention Figure 7 Schematic diagram of the enlarged structure of the C region;

[0042] Figure: 1. Bracket; 2. Detection platform; 201. Sliding groove; 3. Detection assembly; 301. Support seat; 302. Sliding guide rail; 303. Detector; 3031. Housing; 3032. Limit block 1; 3033. Detection head; 3034. Circular groove; 3035. Ball bearing; 30351. Circular mounting block; 30352. Push rod; 30353. Motor 1; 30354. Grinding rod; 30355. Fixing cylinder; 30356 30357, sliding block 2; 30358, telescopic protective shell; 30359, liquid tank; 3036, support column 3; 30361, wire channel; 3037, sliding plate 1; 3038, spring 1; 3039, limit block 2; 304, sliding block 1; 305, channel 1; 306, heating device; 3061, channel 2; 307, channel 3; 308, channel 4; 309, pulley; 310, channel 5;

[0043] 4. Top plate; 401. Support column 1; 5. Cylinder 1; 6. Upper die base; 7. Cylinder 2; 701. Support plate 1; 702. Support column 2; 8. Lower die base; 9. Cylinder 3. DETAILED DESCRIPTION

[0044] The following is a non-limiting detailed description of the technical solutions of the present invention in conjunction with preferred embodiments and the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0045] See also Figure 1-8 , an embodiment of the present invention provides a technical solution: a thickness detection device for a mold, including a bracket 1.

[0046] like Figure 1-2 As shown, in some embodiments, a detection platform 2 is installed above the bracket 1, a detection component 3 is installed on the detection platform 2, a top plate 4 is fixed above the detection platform 2 through a support column 401, a cylinder 5 is fixed on the top plate 4, and the cylinder output end of the cylinder 5 passes through the top plate 4 and is fixed with an upper mold base 6.

[0047] like Figure 3 As shown, in some embodiments, a cylinder 2 7 is provided under the detection platform 2, and the cylinder 2 7 is fixed to the bracket 1. A support plate 1 701 is fixed to the output end of the cylinder 2 7, and a plurality of support columns 2 702 are fixed on the support plate 1 701. The support columns 2 702 pass through the detection platform 2 and a lower mold base 8 is fixed to the upper end of the support columns 2 702.

[0048] like Figure 4As shown, in some embodiments, cylinders 3 9 are fixed on both sides of the detection platform 2, and the output ends of the two cylinders 3 9 are fixed to the detection component 3 for driving the detection component 3 to move laterally.

[0049] The detection platform 2 is provided with two sliding grooves 201, which are symmetrical about the center of the detection platform 2. The detection assembly 3 is slidably connected within the two sliding grooves 201. The detection assembly 3 includes two support bases 301, which are respectively located within the two sliding grooves 201 and fixed to the output end of the cylinder 3 9. A sliding guide rail 302 is fixed between the two support bases 301. The sliding guide rail 302 is located between the upper mold base 6 and the lower mold base 8. A detector 303 is slidably connected within the sliding guide rail 302 via a sliding block 1 304. The detector 303 is slidably connected to the sliding block 1 304. The detector 303 achieves the effect of longitudinal and transverse sliding through the sliding guide rail 302 and the sliding block 1 304.

[0050] like Figure 5 As shown, in some embodiments, the detector 303 includes a shell 3031, and two detection heads 3033 are slidably connected to the outer diameter of the shell 3031. The two detection heads 3033 are conical. The detector 303 is placed vertically, and the two detection heads 3033 are respectively located at both ends of the shell 3031. A limit block 3032 is fixed at both ends of the shell 3031, and the limit block 3032 is used to prevent the detection head 3033 from detaching from the shell 3031 during the sliding process of the shell 3031.

[0051] like Figure 6 As shown, in some embodiments, a circular groove 3034 is provided at the conical tip of the detection head 3033, and a roller in the circular groove 3034 is connected to a ball 3035, and a cavity is formed inside the detection head 3033. A support column three 3036 is provided inside the detection head 3033, and one end of the support column three 3036 is located in the opposite direction of the ball 3035 and is fixed, and the other end is fixed with a sliding plate one 3037, and the sliding plate one 3037 is slidingly connected to the inner wall of the outer shell 3031, and a spring one 3038 is fixed on the end face of the sliding plate one 3037 close to the circular groove 3034, and a limit block two 3039 is fixed on the other end of the spring one 3038, and one side of the limit block two 3039 is fixed to the inner wall of the outer shell 3031, and the other side is in contact with the support column three 3036.

[0052] like Figure 7As shown, in some embodiments, the interior of the support column three 3036 of the detection head 3033 is hollow, and a metal wire groove 30361 is fixed inside the support column three 3036. One end of the metal wire groove 30361 is fixed to the detection head 3033, and the other end of the metal wire groove 30361 passes through the shell 3031 to form a metal wire feed port, and the metal wire groove 30361 is used to insert the metal wire.

[0053] like Figure 7-8 As shown, in some embodiments, the ball 3035 is hollow inside and forms a spherical shell outside. A circular mounting block 30351 is installed in the center of the ball 3035. The circular mounting block 30351 is hollow inside. A push rod 30352 is fixed in the circular mounting block 30351. The output end of the push rod 30352 is fixed with a motor 1 30353. The push rod 30352 is extended to connect the output end of the motor 1 30353 with the grinding rod 30354. There are several grinding rods 30354 based on the center of the circular mounting block 30351. A fixing cylinder 30352 is fixed on the outer diameter of the grinding rod 30354. 355, the fixed cylinder 30355 is located in the middle of the polishing rod 30354, and a spring 2 30356 is sleeved on the outer diameter of the fixed cylinder 30355, one end of the spring 2 30356 is in contact with the outer diameter of the circular mounting block 30351, and the other end is fixed with a sliding block 2 30357, and the sliding block 2 30357 passes through the outer surface of the ball 3035, and the outer surface of the sliding block 2 30357 has the same curvature as the outer surface of the ball 3035; one end of several polishing rods 30354 is located in the circular mounting block 30351, and the other end passes through the sliding block 2 30357 and is in contact with its outer surface.

[0054] It should be noted that: when the ball 3035 rotates, several of the grinding rods 30354 pass under the output end of the motor 1 30353 during the rotation process. When grinding is required, the push rod 30352 pushes the motor 1 30353 so that the motor output end contacts the grinding rod 30354, driving the grinding rod 30354 to rotate.

[0055] like Figure 7-8 As shown, in some embodiments, a telescopic protective shell 30358 is installed between the circular mounting block 30351 and the sliding block 2 30357. One end of the telescopic protective shell 30358 is fixed to the sliding block 2 30357, and the other end is slidingly connected to the circular mounting block 30351. The telescopic protective shell 30358 is located on the outside of the spring 2 30356 and is used to protect the spring 2 30356.

[0056] like Figure 7-8As shown, in some embodiments, a liquid tank 30359 is provided in the detection head 3033, and the liquid tank 30359 is used to circulate liquid metal. A channel 1 305 is provided between the liquid tank 30359 and the metal wire channel 30361, and a heating device 306 is fixed on the inside of the channel 1 305, and the heating device 306 is used to melt the metal wire. A channel 2 3061 is provided in the center of the heating device 306, and the channel 2 3061 is communicated with the liquid tank 30359.

[0057] like Figure 7-8 As shown, in some embodiments, a groove is formed on the surface of the circular groove 3034 of the detection head 3033, and a fifth channel 310 is formed in the detection head 3033, and the fifth channel 310 connects the liquid groove 30359 with the circular groove 3034; a third channel 307 is formed on the inner wall of the ball 3035, and the third channel 307 passes through the shell of the ball 3035 and contacts the adjacent second sliding block 30357 respectively; a fourth channel 308 is formed on the outer surface of the second sliding block 30357, and the fourth channel 308 passes through the interior of the second sliding block 30357 and contacts the adjacent ball 3035, and the third channel 307 is located on the sliding path of the fourth channel 308;

[0058] In the initial state, the channel three 307 and the channel four 308 are not connected. When the sliding block two 30357 encounters a depression on the workpiece surface, the sliding block two 30357 extends to connect the channel four 308 with the channel three 307. When the sliding block two 30357 moves longitudinally until the channel three 307 and the channel four 308 are connected, the liquid metal passes through channel five 310-channel three 307-channel four 308 in sequence to fill the workpiece surface.

[0059] like Figure 5 and Figure 7 As shown, in some embodiments, a pulley 309 is installed in the housing 3031. The pulley 309 passes through the support column 3036 and the metal wire channel 30361 and fits with the metal wire to push the metal wire to move.

[0060] It should be noted that the liquid tank 30359 has a built-in electromagnetic coil, which generates a magnetic field when energized, causing the liquid metal to flow in a directional manner within the ball 3035.

[0061] It should be noted that: a laser emitter and a laser receiver are respectively installed on the sliding plate 3037 inside the upper and lower detection heads 3033, and the initial distance a and the distance b after forming are measured by the laser emitter and the laser receiver. The positions of the laser emitter and the laser receiver correspond to each other vertically. Since the interior of the shell 3031 is hollow, when the laser emitter emits laser, the laser receiver can receive the laser to measure the distance between the two sliding plates 3037.

[0062] Working principle:

[0063] By starting the cylinder three 9, the detection component 3 is driven to move horizontally, and by starting the sliding guide rail 302, the sliding block 1 304 moves the detector 303 longitudinally until the detector 303 moves to the edge of the mold.

[0064] The upper mold base 6 and the mold are driven downward by the cylinder 5. When the mold of the upper mold base 6 contacts the detector 303, the detector 303 is pressed down to contact the mold fixed on the lower mold base 8. The distance a between the two sliding plates 3037 can be obtained through the laser emitter and the laser receiver, and the position of the upper mold base 6 at this time is determined as the initial position.

[0065] The upper die base 6 is moved upward by the cylinder 1 5 , and the detection component 3 is moved away from the upper die base 6 by the cylinder 3 9 .

[0066] The mold is fixed on the upper mold base 6 and the lower mold base 8, and the blank is placed in the mold on the lower mold base 8. By starting the cylinder 15, the cylinder 15 drives the upper mold base 6 to move downward, and the molds fixed on the upper mold base 6 and the lower mold base 8 apply pressure to the blank and shape it.

[0067] When the thickness of the formed workpiece needs to be detected after the shaping is completed, the detection component 3 is driven to move horizontally by starting the cylinder 3 9, and the sliding guide rail 302 is started, and the sliding block 1 304 moves the detector 303 longitudinally until the detector 303 moves to the edge of the formed workpiece.

[0068] The upper die base 6 and the die are driven downward by the cylinder 5. When the die of the upper die base 6 contacts the detector 303, the detector 303 is pressed down continuously to contact the molded workpiece on the mold fixed on the lower die base 8. The distance b between the two sliding plates 1 3037 can be obtained through the laser transmitter and the laser receiver, and the thickness of the molded workpiece at this time is ba.

[0069] By starting the cylinder 39 and the sliding guide rail 302, the ball 3035 is made to roll between the mold and the workpiece, and the change of ba is recorded, and the thickness of each point of the workpiece is calculated.

[0070] When the surface thickness of the workpiece is uneven, the metal wire is placed in the metal wire feed port. After the metal wire enters the metal wire groove 30361, the heating device 306 is started. The heating device 306 melts the metal wire to form liquid metal. The melted metal wire enters the interior of the liquid tank 30359. Electromagnetic force is introduced into the liquid tank 30359 to prevent the liquid metal from solidifying while giving the liquid metal magnetism. When the sliding block 2 30357 on the ball 3035 slides to the position of the groove, the sliding block 2 30357 slides in the opposite direction of the circular mounting block 30351 under the action of the spring 2 30356. When the channel 3 307 and the channel 4 308 are connected, the liquid metal in the liquid tank 30359 enters the interior of the ball 3035 from the channel 5 310 and the channel 3 307.

[0071] When the thickness of the workpiece surface is lower than the required thickness, the sliding block 2 30357 slides downward under the action of the elastic force of the spring 2 30356. When the channel 3 307 and the channel 4 308 are connected, the liquid metal in the ball 3035 flows out from the channel 3 307 and the channel 4 308. The liquid metal after flowing out converges to the middle under the action of magnetism.

[0072] When the thickness of the workpiece surface is higher than the required thickness, the second sliding block 30357 slides upward, and by starting the first motor 30353, the grinding rod 30354 is driven to rotate and grind the workpiece surface.

[0073] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only used to facilitate the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0074] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the aforementioned embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A mold thickness detection device, comprising a bracket, characterized in that: A detection platform is installed above the bracket, and a detection component is installed on the detection platform; The detection assembly includes two symmetrically arranged support bases, a sliding guide rail is fixed between the two support bases, a detector is slidably connected in the sliding guide rail, the detector is placed vertically, the detector is between the upper die base and the lower die base, and two conical detection heads are slidably connected at both ends of the detector; The conical tip of the detection head is provided with a circular groove, and a roller in the circular groove is connected to a ball. A support column three is provided inside the detection head, one end of the support column three is located in the opposite direction of the ball and is fixed, and the other end is fixed with a sliding plate one, and a laser transmitter and a laser receiver are respectively installed on the two sliding plates one, and the laser receiver measures the distance between the two sliding plates one after receiving the laser; the sliding plate one is slidably connected to the inner wall of the detector, and a spring one is fixed on the end surface of the sliding plate one close to the circular groove, and a limit block two is fixed to the other end of the spring one, and one side of the limit block two is fixed to the inner wall of the detector, and the other side is in contact with the support column three; A circular mounting block is installed in the center of the ball of the detection head, a push rod is fixed in the circular mounting block, and a motor 1 is fixed at the output end of the push rod; There are a number of grinding rods based on the spherical center array of the circular mounting block, and a fixing cylinder is fixed on the outer diameter of the grinding rod. The fixing cylinder is located in the middle of the grinding rod and a spring 2 is sleeved on the outer side; One end of the second spring is in contact with the outer diameter of the circular mounting block, and the other end is fixed with a second sliding block, which passes through the outer surface of the ball and has the same curvature as the outer surface of the ball; one end of the plurality of polishing rods is located in the circular mounting block, and the other end passes through the second sliding block and is in contact with its outer surface; When the ball rotates, several grinding rods pass under the output end of motor 1 during the rotation process. When grinding is required, the push rod pushes motor 1 so that the output end of the motor contacts the grinding rod, driving the grinding rod to rotate; The interior of the support column three of the detection head is hollow, and a metal wire groove is fixed inside the support column three; the other end of the metal wire groove passes through the shell to form a metal wire feeding port, a liquid tank is opened in the detection head, and a channel one is opened between the liquid tank and the metal wire groove, a heating device is fixed on the inside of the channel one, and a channel two is opened in the center of the heating device, and the channel two is communicated with the liquid tank; A groove is provided on the circular groove surface of the detection head, and a channel five is provided in the detection head, and the channel five connects the liquid groove with the circular groove; a channel three is provided on the inner wall of the ball, and the channel three passes through the shell of the ball and contacts the adjacent sliding block two respectively; a channel four is provided on the outer surface of the sliding block two, and the channel four passes through the interior of the sliding block two and contacts the adjacent ball; the channel three is located on the sliding path of the channel four, and the channel four is connected or closed to the channel three by the longitudinal movement of the sliding block two.

2. A mold thickness detection device according to claim 1, characterized in that: A telescopic protective shell is installed between the circular mounting block and the second sliding block. One end of the telescopic protective shell is fixed to the second sliding block, and the other end is slidably connected to the circular mounting block. The telescopic protective shell is located outside the second spring.

3. A mold thickness detection device according to claim 2, characterized in that: A pulley is installed in the shell, and the pulley passes through the lower support column three and the metal wire channel and fits with the metal wire to push the metal wire to move.

4. A mold thickness detection device according to claim 3, characterized in that: A top plate is fixed above the detection platform via a support column 1, a cylinder 1 is fixed on the top plate, and an upper die base is fixed on the cylinder output end of the cylinder 1 passing through the top plate.

5. The mold thickness detection device according to claim 4, characterized in that: Cylinder 2 is set below the detection platform, and cylinder 2 is fixed to the bracket. A support plate 1 is fixed to the output end of cylinder 2, and a plurality of support columns 2 are fixed on the support plate 1. The support columns 2 pass through the detection platform and a lower mold base is fixed thereon.

6. The mold thickness detection device according to claim 5, characterized in that: Cylinder three is fixed on both sides of the detection platform, and the output ends of the two cylinders three are fixed to the detection component. Two sliding grooves are provided on the detection platform, and the two sliding grooves are symmetrical based on the center of the detection platform. The two support seats are respectively slidably connected in the two sliding grooves.

7. A detection method for a mold thickness detection device according to any one of claims 1 to 6, characterized in that: Step 1: Start cylinder 3 to drive the detection assembly to move horizontally, and start the sliding guide to move the slide block 1 with the detector longitudinally to the edge of the mold; cylinder 1 drives the upper mold base and mold downward. When the upper mold base mold contacts the detector, it continues to press down to make the detector contact the upper mold of the lower mold base. The distance a between the two sliding plates is measured by the laser transmitter and receiver and is determined as the initial position of the upper mold base. Then, cylinder 1 moves the upper mold base upward, and cylinder 3 moves the detection assembly away from the upper mold base. Step 2: Fix the mold to the upper and lower mold bases, place the blank in the lower mold base, and the cylinder drives the upper mold base downward. The upper and lower mold bases pressurize the blank to shape it; Step 3: When the thickness of the workpiece needs to be detected after shaping, start cylinder three and the sliding guide rail to move the detector to the edge of the formed workpiece; cylinder one drives the upper die base and the mold downward, and the upper die base mold continues to press down after contacting the detector, so that the detector contacts the formed workpiece on the lower die base, and the distance b between the two sliding plates is obtained by laser, and the workpiece thickness is ba; start cylinder three and the sliding guide rail to make the ball roll between the mold and the workpiece, record the changes in ba and calculate the average thickness.

8. The detection method of the mold thickness detection device according to claim 7, characterized in that: The step three specifically includes: When the thickness is uneven: the heating device is started to melt the metal wire into liquid and enter the liquid tank, and the electromagnetic is turned on to prevent solidification and give it magnetism; when the sliding block 2 on the ball slides to the installation slot position, it slides in the opposite direction of the circular installation block under the action of spring 3, and when channel 3 and channel 4 are connected, the liquid metal enters the ball from channel 5, channel 3 and channel 4; When the thickness is lower than the required thickness: the sliding block 2 slides downward under the elastic force of the spring 2, and when the channel 3 and the channel 4 are connected, the liquid metal in the ball flows out and gathers in the middle under the action of magnetism; When the thickness is higher than the required thickness: the sliding block 2 slides upward, and the motor 1 is started to drive the grinding rod to rotate and grind the surface of the workpiece.

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