Device for measuring boundary dimension of radar aluminum alloy radiator
By using an adaptive clamping assembly and a friction drive mechanism, the problem of the existing fixtures being unable to stably clamp the radar heat sink was solved, achieving high-precision dimensional measurement and protecting the integrity of the workpiece.
Patent Information
- Application Number
- CN202511693707.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-01-16
AI Technical Summary
Existing coordinate measuring machine (CMM) fixtures cannot stably hold irregularly shaped radar heat sinks, resulting in large measurement errors and easy damage to the workpiece, which cannot meet the high-precision measurement requirements of radar systems.
The clamping assembly uses multiple clamping plates, which are controlled by gears and lead screws to adapt to irregular surfaces. Combined with a friction transmission mechanism and a retraction mechanism, it achieves adaptive clamping and adjusts the clamping force by adjusting the friction force to avoid rigid extrusion that could damage the workpiece.
It improves clamping stability and measurement accuracy, protects workpiece integrity, adapts to the clamping requirements of heat sinks of different specifications, and ensures the accuracy and reliability of measurement.
Smart Images
Figure CN121346722A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of measuring devices, in particular to a radar aluminum alloy radiator shape size measuring device. BACKGROUND
[0002] When the radar system is working, the core electronic components will generate a large amount of high-power heat loss, which needs to be dissipated through precise design. Aluminum alloy has become the core manufacturing material of the radar radiator due to its excellent heat conduction performance and lightweight advantage. The shape size precision of the radiator is crucial to its function implementation: on the one hand, the size deviation of key features such as hole position and flow channel inlet will cause the radiator and radar equipment to have too large or no fitting clearance, affecting the overall installation stability; on the other hand, the shape parameters such as flow channel cross section and fin spacing directly determine the cooling liquid flow efficiency and heat dissipation area, and the size inaccuracy will greatly weaken the heat dissipation effect, which cannot meet the thermal management needs of the radar equipment. Therefore, accurately measuring the shape size of the radar aluminum alloy radiator is a key link to ensure the stable operation of the radar system.
[0003] The current mainstream size measuring equipment (such as a three-coordinate measuring machine CMM) is designed primarily for regular standard geometric bodies. When measuring the special-shaped structure (such as the streamlined heat dissipation fins and gradient thickness side walls) of the radar radiator, the existing CMM fixtures are mostly one-piece fixed rigid clamps that can only be attached to regular planes. During measurement, the actual contact area between the clamp and the radiator is insufficient, resulting in poor clamping stability. The radiator may slightly shift during the measurement process and contact with the probe, which directly affects the measurement accuracy of the fin spacing, flow channel depth and other micro-size measurements. At the same time, in order to ensure sufficient clamping force, the fixture provides too strong a clamping force, which acts on the thin-walled, finned and other fragile parts of the radiator, causing extrusion deformation or surface scratches and damaging the integrity of the workpiece. SUMMARY
[0004] The present application aims to provide a radar aluminum alloy radiator shape size measuring device to solve the problems raised in the background.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The radar aluminum alloy radiator shape size measuring device comprises a measuring table, which is arranged in the measuring area of the measuring device and used for placing the radiator to be measured. The clamping assembly is arranged in the interior of the measuring table, and comprises a transmission mechanism, a lead screw and a linkage mechanism. The transmission mechanism and the linkage mechanism respectively drive a group of lead screws to rotate. The outer side of the lead screw is provided with a nut seat which moves linearly according to the rotation of the lead screw. The top of the nut seat is provided with a clamping plate for clamping the radiator. The contact end of the transmission mechanism and the linkage mechanism with the lead screw is provided with a friction surface. The rotation of the lead screw is driven by friction force, so that the clamping plate stops moving due to resistance after reaching the radiator. The three-axis moving mechanism is arranged on the measuring device, and comprises a vertical shaft and a transverse shaft for driving the probe to move. The transverse shaft is provided with a back-off mechanism. The back-off mechanism can drive the corresponding lead screw to rotate when the probe moves on the transverse shaft, so as to adjust the position of the clamping plate to avoid the probe.
[0006] Preferably, the back-off mechanism comprises a first back-off gear, a second back-off gear, a third back-off gear and a fourth back-off gear. The vertical shaft is provided with a tooth groove which is engaged with the first back-off gear. The transverse shaft is provided with a back-off strip which is engaged with the fourth back-off gear. The first back-off gear drives the second back-off gear, the third back-off gear and the fourth back-off gear to rotate synchronously through a transmission shaft and a chain. The top of the measuring table is provided with a plurality of back-off grooves for the back-off strip to pass through. The outer side of the lead screw is fixedly provided with a rotary gear. The back-off strip and the rotary gear are engaged with each other, so that a single lead screw is driven to rotate to adjust the position of the clamping plate.
[0007] Preferably, the transmission mechanism comprises a driving gear, a driven gear and a transmission gear. The driving gear drives the driven gear through a chain. The driven gear is engaged with the transmission gear. One end of the lead screw corresponding to the transmission mechanism is provided with a friction disc. The friction disc is in contact with the transmission gear through a friction surface, so as to realize the rotation of the lead screw driven by friction force.
[0008] Preferably, the outer side of the lead screw is further provided with a pressure regulating gear. The inner wall of the pressure regulating gear is provided with a protrusion which is matched with the outer side of the lead screw. The pressure regulating gear can move along the outer side of the lead screw when rotating. A disc spring is further arranged between the pressure regulating gear and the friction disc. One side of the measuring table is provided with a tightening strip which is engaged with the outer edge of the pressure regulating gear. The tightening strip drives the pressure regulating gear to move, compresses or releases the disc spring, changes the friction force between the friction disc and the transmission gear, and then adjusts the clamping force of the clamping plate on the radiator.
[0009] Preferably, the driving gear and the driven gear are connected with the gear parts arranged in the linkage mechanism through a linkage shaft and a linkage mechanism. The rotation direction of the lead screw driven by the transmission mechanism is opposite to that of the lead screw driven by the linkage mechanism, so that the two groups of clamping plates move synchronously and oppositely.
[0010] Preferably, the third and fourth retreat gears are each provided with two, which are arranged on the first and second extension sides of the transverse shaft, the third and fourth retreat gears arranged on the first extension side are engaged with each other, and the third and fourth retreat gears arranged on the second extension side are connected through the transmission shaft.
[0011] Preferably, the clamping plate comprises a plurality of movable layers, pressure layers and contact layers, the contact layer is arranged as the outermost layer and directly contacts the radiator, the pressure layer is connected to the contact layer to transmit the clamping force, and the movable layer is arranged as a hollow cavity, and a spring is arranged in the cavity.
[0012] Preferably, the measuring table is provided with a first mounting side and a second mounting side, and a group of lead screws is arranged on the first and second mounting sides, respectively.
[0013] Preferably, the first mounting side is on the same side as the first extension side of the transverse shaft, and the second mounting side is on the same side as the second extension side of the transverse shaft.
[0014] Compared with the prior art, the present application has the following advantages: In the present application, a plurality of clamping plates with clamping fulcrums are arranged on the measuring table, the clamping mechanism controls the movement of the clamping plates to the radiator through gears and lead screws, after the clamping plates are contacted, the friction transmission mechanism between the lead screw and the gear is triggered by resistance, so that the clamping plates stop moving, and the remaining clamping plates move to the special-shaped surface and stop moving. This design allows the clamping plates to adapt to the special-shaped profile, avoids rigid extrusion damage to the workpiece, and improves the clamping stability and prevents displacement. In addition, in order to avoid the clamping plate blocking the side feature points of the radiator, when the measuring machine moves the probe to a side of the clamping plate through the moving shaft, the side clamping plate is driven to avoid the side through the cooperation of the moving shaft and the clamping mechanism, and the other clamping plates remain clamped. This eliminates the obstacle of probe measurement without damaging the clamping stability, and ensures accurate measurement of key features such as side hole and flow channel inlet. On the basis of the above structure, by adjusting the friction force of the friction plate in the friction transmission mechanism, the clamping force of the clamping plate on the radiator is changed, so that the clamping mechanism can adjust the clamping force according to the different structures of the radiator, which not only protects the integrity of the workpiece, but also ensures the clamping reliability, and greatly improves the adaptability of the device to different specifications of the radiator. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The overall structure schematic diagram of the embodiment of the present application is shown; Figure 2 The overall structure schematic diagram of the embodiment of the present application is shown; Figure 1 The enlarged view of area A in the embodiment of the present application is shown; Figure 3 The overall structure schematic diagram of the clamping assembly in the embodiment of the present application is shown; Figure 4 Fig. 1 shows a schematic diagram of a part of the clamping assembly in an embodiment of the present application; Figure 5 Fig. 2 shows a schematic diagram of a part of the transmission assembly of the lead screw in an embodiment of the present application; Figure 6 Fig. 3 shows a schematic diagram of a part of the clamping assembly in an embodiment of the present application; Figure 5 Fig. 4 shows an enlarged view of the B area in Fig. 3; Figure 7 Fig. 5 shows a sectional view of the pressure regulating gear in an embodiment of the present application; Figure 8 Fig. 6 shows a side view of the clamping plate in an embodiment of the present application; Figure 9 Fig. 7 shows an enlarged view of a part of the clamping plate in an embodiment of the present application; Figure 10 Fig. 8 shows a schematic diagram of a part of the three-axis moving mechanism in an embodiment of the present application; Figure 11 Fig. 9 shows a schematic diagram of a part of the horizontal axis in an embodiment of the present application; Figure 12 Fig. 10 shows a schematic diagram of the whole structure of the back-off mechanism in an embodiment of the present application; Figure 13 Fig. 11 shows a diagram of the movement trajectory of the clamping plate when the horizontal axis moves towards the first mounting side in the present application; Figure 14 Fig. 12 shows an enlarged view of the movement trajectory of the clamping plate in an embodiment of the present application; Figure 15 Fig. 13 shows a diagram of the movement trajectory of the clamping plate when the horizontal axis moves towards the second mounting side in the present application; Figure 16 Fig. 14 shows an enlarged view of the movement trajectory of the clamping plate in an embodiment of the present application.
[0016] In the figures: 100, measuring table; 100a, first mounting side; 100b, second mounting side; 110, back-off groove; 120, tightening strip; 200, clamping assembly; 210, clamping plate; 211, movable layer; 212, pressure layer; 213, contact layer; 220, transmission mechanism; 221, driving gear; 222, driven gear; 223, transmission gear; 230, lead screw; 231, nut seat; 232, friction disc; 233, rotary gear; 234, pressure regulating gear; 235, disc spring; 240, linkage mechanism; 250, linkage shaft; 300, three-axis moving mechanism; 310, vertical axis; 311, gear slot; 320, horizontal axis; 320a, first extension side; 320b, second extension side; 321, back-off strip; 330, back-off mechanism; 331, first back-off gear; 332, second back-off gear; 333, third back-off gear; 334, fourth back-off gear. DETAILED DESCRIPTION
[0017] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0018] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.
[0019] As shown in Figure 1 and Figure 2 , the present embodiment discloses a radar aluminum alloy radiator outline size measuring device, comprising a measuring table 100, a clamping assembly 200, and a three-axis moving mechanism 300, wherein the measuring table 100 is arranged on the measuring area in the measuring device, the clamping assembly 200 is arranged inside the measuring table 100 for clamping and fixing the radiator to be measured, and the three-axis moving mechanism 300 is the moving mechanism of a CMM (three-coordinate measuring machine). The probe is moved to contact the radiator for size measurement through the three-axis moving mechanism 300. The clamping range of the clamping assembly 200 covers the probe measurement area of the three-axis moving mechanism 300, ensuring that the measurement path is not blocked when clamping is stable. Further, when the existing measuring device such as a CMM (three-coordinate measuring machine) measures the size of the radar radiator, the clamp for fixing the position of the radiator is a fixed-shape clamping plate. For the irregular and curved surface of the radar radiator, the fitting area is small, resulting in poor clamping stability. The radiator is displaced when contacting the probe during the measurement process, affecting the measurement accuracy. And the device, as shown in Figure 3 , the motor drives the transmission mechanism 220 to make each gear in the transmission mechanism 220 rotate, and under the transmission of the connecting shaft 250, each gear in the connecting mechanism 240 rotates synchronously, so that multiple lead screws 230 rotate at the same time. The rolling surfaces of the two groups of lead screws 230 connected by the transmission mechanism 220 and the connecting mechanism 240 rotate in opposite directions, and the two groups of lead screws 230 are correspondingly arranged on both sides of the inner cavity of the measuring table 100. On this basis, when the two groups of lead screws 230 rotate synchronously, as shown in Figure 2 , they can drive the two groups of nut seats 231 to move synchronously towards the center area of the measuring table 100, and the clamping plate 210 arranged on the top of the nut seat 231 clamps and fixes the position of the radiator. As shown in Figure 4 , the transmission mechanism 220 includes a transmission gear 223, as shown in Figure 5As shown, the lead screw 230 includes a friction disc 232 fixed to the lead screw 230 near one end of the transmission mechanism 220, and through the transmission gear 223 and the corresponding friction surface of the friction disc 232, and through the friction surface fitting, normal transmission, the transmission gear 223 and the friction disc 232 rotate synchronously by friction, so that the lead screw 230 rotates normally, until the clamping plate 210 contacts the radiator, the reverse torque generated by the blockage exceeds the maximum friction torque that the transmission gear 223 and the friction surface of the rotary gear 233 can transmit, the transmission gear 223 cannot drive the friction disc 232 to rotate due to insufficient friction, so that the rotation of the lead screw 230 stops, so that the position of the nut seat 231 stops moving, and the clamping plate 210 stops at the contact position with the radiator. At this time, the rest of the lead screw 230 continues to rotate through the transmission mechanism 220 and the lead screw 230, and according to the irregular shape of the radiator surface, when the clamping plate 210 contacts the radiator and provides a certain clamping force, it stops moving, until all the clamping plates 210 contact the radiator and provide clamping force, and the irregularly shaped radiator is clamped and fixed. At this time, it is convenient for the probe to measure the size of the radiator, the transmission mechanism 220 includes a driving gear 221, a driven gear 222, and a transmission gear 223, the driving gear 221 drives the driven gear 222 through a chain, the driven gear 222 is engaged with the transmission gear 223, and the corresponding end of the lead screw 230 is provided with a friction disc 232, the friction disc 232 is in contact with the transmission gear 223 through the friction surface, and the friction force drives the lead screw 230 to rotate.
[0020] As shown in Figure 10 The back-off mechanism 330 includes a first back-off gear 331, a second back-off gear 332, a third back-off gear 333, and a fourth back-off gear 334. The vertical shaft 310 is provided with a tooth groove 311 engaged with the first back-off gear 331. The lateral shaft 320 is provided with a back-off strip 321 engaged with the fourth back-off gear 334. The three-axis movement mechanism 300 includes a vertical shaft 310 and a lateral shaft 320. When the lateral shaft 320 moves along the bottom of the vertical shaft 310 to adjust the longitudinal position of the probe, as shown in Figures 11-12 The first back-off gear 331 provided at the top of the lateral shaft 320 is engaged with the tooth groove 311 provided at the bottom of the vertical shaft 310. When the lateral shaft 320 moves, the first back-off gear 331 rotates. The tooth groove 311 drives the second back-off gear 332 to rotate synchronously through a transmission shaft. The second back-off gear 332 drives the third back-off gear 333 to rotate synchronously through a chain. The third back-off gear 333 drives the fourth back-off gear 334 to rotate through mutual engagement or a transmission shaft, as shown in Figures 11-12As shown, the third back gear 333 and the fourth back gear 334 are both set to two in number, and are arranged on the first extended side 320a and the second extended side 320b of the transverse shaft 320 respectively, the third back gear 333 and the fourth back gear 334 on the first extended side 320a are engaged with each other, and the third back gear 333 and the fourth back gear 334 on the second extended side 320b rotate synchronously through the transmission shaft, due to the gear engagement relationship, when the first back gear 331 rotates, the fourth back gears 334 on both sides rotate in opposite directions, and the two fourth back gears 334 are engaged with the back strip 321 respectively, so that when the transverse shaft 320 moves, one side of the back strip 321 moves upward, and the other side of the back strip 321 moves downward; As Figure 13 Further, in order to avoid the blocking of the side surface (clamping surface) of the heat sink by the clamping plate 210, so that the probe cannot access the key features (hole position, flow channel inlet, etc.) of the side surface of the heat sink, when the transverse shaft 320 moves to the first mounting side 100a of the measuring table 100, the back strip 321 arranged at the first extended side 320a corresponding thereto moves downward under the drive of the third back gear 33, and is in contact with the back gear 233 through the back groove 110, and the back gear 233 and the back strip 321 are engaged with each other, so that the back strip 321 drives the back gear 233 to rotate when moving downward, and the back gear 233 drives the lead screw 230 to rotate, as shown in Figure 14 The single clamping plate 210 arranged on one side of the first mounting side 110a moves in the opposite direction of the heat sink through the lead screw 230, so that the clamping plate 210 at this position leaves the side of the heat sink, and the clamping plates 210 arranged at other positions continue to provide sufficient clamping force to the heat sink, at this time the probe can measure the side surface of the heat sink at this position, and when the heat sink changes the measurement position, as shown in Figure 15 When the transverse shaft 320 moves to the second mounting side 100b of the measuring table 100, the back strip 321 arranged at the second extended side 320b moves downward, and is engaged with the back gear 233 through the back strip 321, as shown in Figure 16 The single clamping plate 210 at the second mounting side 100b leaves the heat sink, and the probe space is released, and the side surface of the heat sink at this position can be measured by the probe.
[0021] As Figures 8-9As shown, the clamp plate 210 includes several movable layers 211, pressure layers 212, and contact layers 213, the contact layer 213 is arranged as the outermost layer and directly contacts the heat sink, the pressure layer 212 is fixedly installed on the other side of the contact layer 213, and the movable layer 211 is arranged to have a hollow cavity, and a spring is arranged in the cavity. A large number of contacts are formed by the movable layer 211, the pressure layer 212, and the contact layer 213. When the clamp plate 210 clamps the heat sink, the flexible material of the contact layer 213 provides protection first, and under the action of the clamping force, the pressure layer 212 is pushed to the movable layer 211 by the reverse thrust of the surface of the heat sink, and is tightly attached according to the irregular surface of the heat sink. At the same time, the spring arranged in the cavity of the movable layer 211 pushes the pressure layer 212 to clamp the surface of the heat sink, so that a plurality of clamp plates 210 are adapted to the overall shape of the heat sink, and are tightly attached according to the irregular streamline shape of the surface of the heat sink. In addition to providing sufficient clamping force to ensure the stability of the heat sink, the clamp plate 210 avoids damaging the surface of the heat sink.
[0022] As shown in Figure 6 , the outer side of the lead screw 230 is also provided with a pressure adjusting gear 234, and the pressure adjusting gear 234 is connected with the friction disc 232 through a disc spring 235, as shown in Figure 7 , the inner wall of the pressure adjusting gear 234 is provided with a protrusion matched with the outer side raceway of the lead screw 230, as shown in Figure 5 , the upper side of the pressure adjusting gear 234 is also provided with a tightening strip 120 meshed with the pressure adjusting gear 234, as shown in Figure 2 , the position of the tightening strip 120 protrudes from the surface of the back-off groove 110, and by moving the tightening strip 120, the pressure adjusting gear 234 can be rotated. Since the inner wall of the pressure adjusting gear 234 is provided with a protrusion matched with the outer side raceway of the lead screw 230, when the pressure adjusting gear 234 rotates, it can move along the lead screw 230, as shown in Figure 6 , by moving the pressure adjusting gear 234 towards the friction disc 232, the disc spring 235 is compressed and deformed, and the elastic force acts on the friction disc 232, as shown in Figure 5As shown, the friction plate 232 generates resistance to the transmission gear 223, so that the friction between the friction plate 232 and the transmission gear 223 is increased. According to the above principle, the friction between the friction plate 232 and the transmission gear 223 can also be reduced by moving the adjusting strip 120. The rotation of the screw rod 230 is driven by the friction between the friction plate 232 and the transmission gear 223. When the friction is increased, the resistance to the clamping plate 210 is increased, so that the clamping plate 210 stops approaching the radiator. When the friction is reduced, the resistance to the clamping plate 210 is reduced, so that the clamping plate 210 stops approaching the radiator. Therefore, the clamping force of the clamping plate 210 on the radiator can be adjusted by moving the adjusting strip 120 according to the external force. Since the structures of radiators are different, such as the thickness of fins, the stress range is different. Therefore, the clamping force can be adjusted according to the structural strength of the radiator, so as to protect the integrity of the workpiece and ensure the clamping reliability.
[0023] The basic principles, main features and advantages of the present application are shown and described above. The present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A device for measuring the dimensions of a radar aluminum alloy heat sink, characterized in that: Comprising A measuring table (100) is arranged in the measuring area of the measuring device for placing the heat sink to be measured; A clamping assembly (200) is arranged inside the measuring table (100), the clamping assembly (200) comprises a transmission mechanism (220), a lead screw (230) and a linkage mechanism (240), the transmission mechanism (220) and the linkage mechanism (240) respectively drive a group of lead screws (230) to rotate, the outer side of the lead screw (230) is provided with a nut seat (231) which moves linearly according to the rotation of the lead screw (230), the top of the nut seat (231) is provided with a clamping plate (210) for clamping the heat sink, the contact end of the transmission mechanism (220) and the linkage mechanism (240) with the lead screw (230) is provided with a friction surface, the rotation of the lead screw (230) is driven by friction, and the clamping plate (210) stops moving after contacting the heat sink due to resistance. A three-axis moving mechanism (300) is arranged on the measuring device, the three-axis moving mechanism (300) comprises a vertical shaft (310) and a transverse shaft (320) for driving the probe to move, the transverse shaft (320) is provided with a back-off mechanism (330), the back-off mechanism (330) can drive the corresponding lead screw (230) to rotate when the probe moves on the transverse shaft (320), and the position of the clamping plate (210) is adjusted to avoid the probe.
2. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 1, wherein: The back-off mechanism (330) comprises a first back-off gear (331), a second back-off gear (332), a third back-off gear (333) and a fourth back-off gear (334), the vertical shaft (310) is provided with a tooth groove (311) engaged with the first back-off gear (331), and the transverse shaft (320) is provided with a back-off strip (321) engaged with the fourth back-off gear (334); The first back-off gear (331) drives the second back-off gear (332), the third back-off gear (333) and the fourth back-off gear (334) to rotate synchronously through a transmission shaft and a chain, the top of the measuring table (100) is provided with a plurality of back-off grooves (110) for the back-off strip (321) to pass through, the outer side of the lead screw (230) is fixedly installed with a rotary gear (233), and the back-off strip (321) and the rotary gear (233) are engaged with each other, so that a single lead screw (230) is driven to rotate to adjust the position of the clamping plate (210).
3. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 1, wherein: The transmission mechanism (220) comprises a driving gear (221), a driven gear (222) and a transmission gear (223), the driving gear (221) drives the driven gear (222) through a chain, the driven gear (222) is engaged with the transmission gear (223), one end of the lead screw (230) corresponding to the transmission mechanism (220) is provided with a friction disc (232), the friction disc (232) and the transmission gear (223) are in contact through a friction surface, and the rotation of the lead screw (230) is driven by friction.
4. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 3, wherein: The outer side of the screw rod (230) is further provided with a pressure regulating gear (234), the inner wall of the pressure regulating gear (234) is provided with a protrusion matched with the outer side raceway of the screw rod (230), so that the pressure regulating gear (234) can move along the outer side of the screw rod (230) when rotating, and a disc spring (235) is further arranged between the pressure regulating gear (234) and the friction disc (232), one side of the measuring table (100) is provided with a tightening strip (120) engaged with the outer edge of the pressure regulating gear (234), the pressure regulating gear (234) is driven to move by the tightening strip (120), the disc spring (235) is compressed or released, the friction force between the friction disc (232) and the transmission gear (223) is changed, and then the clamping force of the clamping plate (210) on the radiator is adjusted.
5. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 3, wherein: The driving gear (221) and the driven gear (222) are connected with gear parts arranged in the linkage mechanism (240) through the linkage shaft (250), the rotation directions of the screw rod (230) driven by the transmission mechanism (220) and the screw rod (230) driven by the linkage mechanism (240) are opposite, so that the two sets of clamping plates (210) move synchronously and oppositely.
6. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 2, wherein: The third back gear (333) and the fourth back gear (334) are each provided with two, which are arranged on the first extension side (320a) and the second extension side (320b) of the transverse shaft (320), the outer edges of the third back gear (333) and the fourth back gear (334) arranged on the first extension side (320a) are engaged with each other, and the third back gear (333) and the fourth back gear (334) arranged on the second extension side (320b) are connected through a transmission shaft.
7. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 1, wherein: The clamping plate (210) comprises a plurality of movable layers (211), pressure layers (212) and contact layers (213), the contact layer (213) is arranged as the outermost layer and directly contacts the radiator, the pressure layer (212) is connected with the contact layer (213) to transmit the clamping force, and the movable layer (211) is arranged as a hollow cavity, and a spring is arranged in the cavity.
8. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 1, wherein: The measuring table (100) is provided with a first mounting side (100a) and a second mounting side (100b), and one set of screw rod (230) is arranged on the first mounting side (100a) and the second mounting side (100b) respectively.
9. The radar aluminum alloy heat sink dimensional measurement apparatus of claim 8, wherein: The first mounting side (100a) is on the same side as the first extension side (320a) of the transverse shaft (320), and the second mounting side (100b) is on the same side as the second extension side (320b) of the transverse shaft (320).