Automobile intercooler size detection tool

Abstract

The utility model discloses a kind of automobile intercooler size detection tool, including detection base, limit compression subassembly, movable clamping subassembly, XYZ moving subassembly and detection subassembly.Limit compression subassembly is positioned and clamped to the X / Y of intercooler front end, movable clamping subassembly rear end Y is adjustable clamping;XYZ moving subassembly drives detection subassembly three-dimensional movement, and detection subassembly measures size deviation by array probe.Solve the problem of low efficiency, insufficient precision of traditional detection, realize intercooler high-precision, high-efficiency size detection, applicable to production detection.

Description

Technical Field

[0001] This utility model relates to the field of intercooler manufacturing technology, and in particular to a tooling for measuring the dimensions of automotive intercoolers. Background Technology

[0002] With the rapid development of the automotive industry, the impact of automotive thermal management systems on engine performance and overall vehicle energy efficiency is becoming increasingly significant. As a key component of the air cooling system, the intercooler is primarily used to reduce the intake air temperature of turbocharged engines, thereby improving combustion efficiency and engine power. With increasingly stringent emission standards and fuel economy requirements for automobiles, the manufacturing precision and quality control of intercoolers are facing even higher demands.

[0003] Currently, dimensional inspection of intercoolers during production relies primarily on traditional manual measurement methods, such as random sampling using simple tools like vernier calipers and micrometers. This method suffers from low inspection efficiency, inconsistent accuracy, and difficulty in data traceability. On one hand, intercoolers have complex structures, including multiple heat pipes, fins, and connecting components, requiring strict geometric dimensions and form and position tolerances, which traditional measurement methods cannot meet the demands of high-precision inspection. On the other hand, with the continuous increase in intercooler production volume, manual inspection can no longer keep pace with large-scale production, severely restricting production efficiency.

[0004] Furthermore, most existing automated testing equipment is designed for specific intercooler models, lacking versatility and flexibility, and making it difficult to adapt to the needs of multi-variety, small-batch production. Moreover, most testing equipment is expensive and complex to maintain, making it unaffordable for small and medium-sized automotive parts companies. Therefore, developing a simple, easy-to-operate, high-precision, high-efficiency, and highly versatile intercooler dimensional testing fixture is of great significance for improving intercooler production quality and efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a tooling for measuring the size of automotive intercoolers.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a tooling for inspecting the dimensions of an automotive intercooler, comprising: an inspection base, which is a rectangular plate structure with a T-slot on its top surface for mounting other components; a limiting and clamping assembly, fixed to the front end of the inspection base, for positioning and clamping the front end of the intercooler in the X / Y directions; a movable clamping assembly, slidably disposed at the rear end of the inspection base, for adjusting and clamping the rear end of the intercooler in the Y direction; an XYZ moving assembly, installed above the top surface of the inspection base, comprising a Y-axis moving assembly, an X-axis moving assembly, and a Z-axis moving assembly nested in sequence, the three-level assembly forming a three-dimensional moving platform; and an inspection assembly, fixed to the bottom of the Z-axis moving assembly of the XYZ moving assembly, comprising a rectangular array of inspection probes, a probe mounting support, a vertical telescopic cylinder, and a probe driving slide; wherein, the probe mounting support is connected to the piston rod of the vertical telescopic cylinder through the probe driving slide, and the top of the vertical telescopic cylinder is fixed to the output end of the Z-axis moving assembly through a cylinder fixing seat.

[0008] As a preferred embodiment of this utility model, the limiting and clamping assembly includes: two L-shaped Y-direction limiting blocks, symmetrically arranged at the front end of the top surface of the detection base, with their horizontal sections fitting against the top surface of the detection base and their vertical sections extending inward to form a Y-direction limiting surface; the L-shaped Y-direction limiting blocks are fixedly connected to the T-slot of the detection base by T-bolts; and a Z-direction clamping seat, which is an I-shaped plate structure, fixed to the front edge of the top surface of the detection base, with its vertical section fitting against the vertical section of the Y-direction limiting block. The straight sections are parallel; the elbow clamps are lever-type structures, two in number, symmetrically arranged on the Z-axis pressing seat, with their pressure heads facing the front end of the intercooler; two L-shaped X-axis limiting seats are fixed on both sides of the Y-axis limiting block, the vertical section of the X-axis limiting seat forms the X-axis limiting surface, and the bottom of its horizontal section has a sensor mounting hole; the proximity sensor is fixed in the sensor mounting hole by a threaded connection, and its sensing end face is perpendicular to the X-axis limiting surface, used to detect whether the front end of the intercooler is properly fitted.

[0009] As a preferred embodiment of this utility model, the movable clamping assembly includes: two parallel Y-axis guide rails, which are linear guide rails, fixed to the rear end edge of the detection base, with the length direction of the guide rails parallel to the extension direction (i.e., the Y-axis) of the Y-axis limiting surface; two Y-axis slides, which are linear sliders matching the Y-axis guide rails, respectively slidably connected to the two Y-axis guide rails; a connecting plate, which is a rectangular plate structure, fixed to the top surface of the two Y-axis slides, with its top surface parallel to the top surface of the detection base; a ball screw, with both ends mounted on a screw support seat on the top surface of the detection base via bearings, and its nut fixedly connected to the bottom surface of the connecting plate; a clamping servo motor, fixed to the rear end of the top surface of the detection base, with its output shaft connected to the rear end of the ball screw via a transmission mechanism; and two sets of oblique clamping assemblies, symmetrically arranged at the rear end of the top surface of the connecting plate, for flexibly clamping the rear heat dissipation pipes of the intercooler.

[0010] As a preferred embodiment of this utility model, the oblique clamping assembly includes: two parallel oblique limiting seats, fixed to the top surface of the connecting plate by countersunk screws; an arc-shaped limiting block, which is an arc plate-shaped structure, with its arc surface adapted to the outer circular surface of the intercooler heat pipe, and fixed above the oblique limiting seats by screws; an oblique clamping seat with a through hole at the top, which is connected to the vertical section of the oblique limiting seat by bolts; a plurality of elastic clamping rods, which obliquely pass through the through hole of the oblique clamping seat, and whose ends extend out to connect with the arc surface of the intercooler heat pipe; and two Z-axis contact sensors, respectively fixed to the bottom of the oblique limiting seat, for monitoring the clamping status of the elastic clamping rods.

[0011] As a preferred embodiment of this utility model, the XYZ moving assembly includes: a Y-axis moving assembly, comprising a Y-axis linear guide rail, a Y-axis servo motor, and a Y-axis transmission mechanism; the Y-axis linear guide rail is fixed to the top surface of the detection base, and its length direction is perpendicular to the X-axis; the Y-axis servo motor is fixed to the front end of the top surface of the detection base via a motor mount; the Y-axis transmission mechanism connects the output shaft of the Y-axis servo motor to the slider of the Y-axis moving slide, driving the Y-axis moving slide to move along the Y-axis linear guide rail; and an X-axis moving assembly, comprising an X-axis linear guide rail, an X-axis servo motor, and an X-axis transmission mechanism; the X-axis linear guide rail is fixed to the top surface of the Y-axis moving slide, and its length direction is perpendicular to the Y-axis; the X-axis servo motor is fixed to the front end of the top surface of the detection base via a motor mount. The X-axis moving slide is fixed to the front end of the X-axis moving slide; the X-axis transmission mechanism connects the output shaft of the X-axis servo motor to the nut of the X-axis moving slide, driving the X-axis moving slide to move along the X-axis linear guide rail; the Z-axis moving assembly includes a Z-axis linear guide rail, a Z-axis servo motor, and a Z-axis transmission mechanism; the Z-axis linear guide rail is fixed below the X-axis moving slide, and its length direction is consistent with the Z-axis; the Z-axis servo motor is fixed to the top of the Z-axis moving bracket through a motor mount; the Z-axis transmission mechanism connects the output shaft of the Z-axis servo motor to the nut of the Z-axis moving slide, driving the Z-axis moving slide to move up and down along the Z-axis linear guide rail; the probe mounting bracket of the detection assembly is fixed to the top surface of the Z-axis moving slide by bolts.

[0012] As a preferred embodiment of this utility model, the detection assembly further includes: a probe mounting plate, which is a rectangular plate structure fixed to the bottom surface of the probe mounting support, with an array of probe mounting holes on its top surface; the detection probe is a contact displacement sensor, fixed in the probe mounting hole by a threaded connection, with the probe head facing the intercooler surface to be detected; a data acquisition module, fixed to the top of the cylinder mounting base, electrically connected to the detection probe via a signal line, used to receive and process the displacement data fed back by the probe, and output the intercooler dimensional deviation value; a probe fixing frame, which is a rectangular frame structure fixed to the bottom of the cylinder mounting base; and four vertical guide shafts, the lower ends of which are fixed to the bottom of the probe fixing frame, and the upper ends of which pass through guide holes on the probe mounting support and are slidably connected to the probe mounting support, used to limit the movement direction of the probe mounting support.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The intercooler front end is precisely positioned in the X / Y direction by the limiting and clamping component. Combined with the three-level servo drive system of the XYZ moving component, the detection component can accurately reach any detection point on the surface of the intercooler. With the help of the contact displacement sensor, high precision of size detection is achieved, and the repeatability accuracy can reach 0.01mm, which effectively ensures the accuracy of the detection results.

[0015] 2. The array-distributed detection probe design allows for simultaneous inspection of multiple parts of the intercooler, significantly improving inspection efficiency. Simultaneously, the Y-axis adjustable design of the movable clamping assembly enables the fixture to quickly adapt to the inspection requirements of different intercooler models, reducing changeover time and improving the overall cycle time of the production line.

[0016] 3. The three-level moving platform design of the XYZ moving assembly enables the detection assembly to move flexibly in three-dimensional space, adapting to the detection requirements of the complex curved surface of the intercooler. At the same time, the elastic clamping design of the oblique clamping assembly ensures clamping reliability while avoiding damage to precision components such as heat pipes, making it particularly suitable for clamping requirements of heat pipes of different specifications. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a side view of the present invention;

[0022] In the diagram: 1. Detection base; 2. Limiting and clamping assembly; 3. Movable clamping assembly; 4. XYZ moving assembly; 5. Detection assembly; 11. T-slot; 21. Y-axis limiting block; 22. Z-axis clamping seat; 23. Elbow clamp; 24. X-axis limiting seat; 25. Proximity sensor; 31. Y-axis guide rail; 32. Y-axis slide; 33. Connecting plate; 34. Ball screw; 35. Clamping servo motor; 36. Angled clamping assembly; 41. Y-axis moving assembly; 42. X-axis moving assembly; 43. Z-axis moving assembly; 51. Detection probe; 52. Probe mounting support; 53. Vertical telescopic cylinder; 54. Probe drive slide; 55. Cylinder fixing seat; 56. Probe mounting plate; 57. Data acquisition module; 58. Probe fixing frame; 5 9. Vertical guide shaft; 211. Y-axis limiting surface; 231. Pressure head; 241. X-axis limiting surface; 242. Sensor mounting hole; 361. Angled limiting seat; 362. Arc-shaped limiting block; 363. Angled clamping seat; 364. Elastic clamping rod; 365. Z-axis contact sensor; 411. Y-axis linear guide; 412. Y-axis servo motor; 413. Y-axis transmission mechanism; 414. Y-axis moving slide; 421. X-axis linear guide; 422. X-axis servo motor; 423. X-axis transmission mechanism; 424. X-axis moving slide; 431. Z-axis linear guide; 432. Z-axis servo motor; 433. Z-axis transmission mechanism; 434. Z-axis moving bracket; 435. Z-axis moving slide; 561. Probe mounting hole. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] In the attached diagram, all identical reference numerals refer to the same components.

[0025] Example 1: Basic automotive intercooler dimensional inspection fixture

[0026] like Figure 1-4 As shown, the automotive intercooler size inspection fixture of this embodiment includes an inspection base 1, a limiting clamping assembly 2, a movable clamping assembly 3, an XYZ moving assembly 4, and an inspection assembly 5. Each assembly is modularly connected to achieve high-precision size inspection of the intercooler.

[0027] The testing base 1 is a rectangular plate structure with T-slots 11 evenly distributed on the top surface, which are used to fix and connect other components by T-bolts, providing a stable foundation for the entire tooling.

[0028] Please see Figure 2 , Figure 3The limiting and clamping assembly 2 is fixed to the front end of the detection base 1 and is used for X / Y direction positioning and clamping of the front end of the intercooler. It includes two L-shaped Y-direction limiting blocks 21, a Z-direction clamping seat 22, two elbow clamps 23, two L-shaped X-direction limiting seats 24, and two proximity sensors 25. The L-shaped Y-direction limiting blocks 21 are symmetrically arranged on the front end of the top of the detection base 1. They are integrally formed by a horizontal section and a vertical section. The horizontal section fits against the top surface of the detection base 1, and the vertical section extends inward to form a Y-direction limiting surface 211. It is connected to the T-slot 11 of the detection base 1 by a T-bolt and is used to limit the Y-direction position of the front end of the intercooler. The Z-direction clamping seat 22 is an I-shaped plate structure, fixed to the front edge of the top of the detection base 1. Its vertical section is parallel to the vertical section of the L-shaped Y-direction limiting block 21. The two elbow clamps 23 are symmetrically arranged on the Z-direction clamping seat 22, with the clamping head 231 facing towards the Z-direction clamping seat 22. The intercooler front end is pressed against the top of the intercooler front end by lever force to achieve Z-axis positioning; the L-shaped X-axis limiting seat 24 is fixed on both sides of the L-shaped Y-axis limiting block 21, and is integrally formed by vertical and horizontal sections. The vertical section forms the X-axis limiting surface 241, which limits the X-axis position of the intercooler front end; a sensor mounting hole 242 is opened at the bottom of the horizontal section, and the proximity sensor 25 is fixed in the hole by threaded connection. The sensing end face is perpendicular to the X-axis limiting surface 241 and is used to detect whether the intercooler front end is completely in contact with the X / Y-axis limiting surface (if it is not in contact, an alarm signal is output).

[0029] Please see Figure 3 The movable clamping assembly 3 is slidably disposed at the rear end of the detection base 1, and is used for Y-axis position adjustment and clamping of the rear end of the intercooler to accommodate intercoolers of different lengths. It includes two Y-axis guide rails 31, two Y-axis slides 32, a connecting plate 33, a ball screw 34, a clamping servo motor 35, and two sets of oblique clamping assemblies 36.

[0030] The Y-axis guide rail 31 is a linear guide rail, fixed parallel to the rear edge of the detection base 1. The length direction of the guide rail is consistent with the length direction (Y direction) of the intercooler. Two Y-axis slides 32 are slidably connected to the two Y-axis guide rails 31 respectively. The top surfaces are jointly fixed to a rectangular plate-shaped connecting plate 33, so that the connecting plate 33 can move synchronously along the Y-axis guide rail 31. The two ends of the ball screw 34 are mounted on the screw support seat (not labeled) on the top surface of the detection base 1 through bearings. Its nut is fixedly connected to the bottom surface of the connecting plate 33. The clamping servo motor 35 is fixed to the rear end of the top surface of the detection base 1. The output shaft is connected to the rear end of the ball screw 34 through a transmission mechanism (such as a coupling), driving the ball screw 34 to rotate, thereby driving the connecting plate 33 to move along the Y-axis guide rail 31, realizing the Y-axis position adjustment of the rear end of the intercooler.

[0031] The oblique clamping components 36 are symmetrically arranged at the rear end of the top surface of the connecting plate 33. Each component includes two oblique limiting seats 361, an arc-shaped limiting block 362, an oblique clamping seat 363, several elastic clamping rods 364, and two Z-axis contact sensors 365. The oblique limiting seats 361 are fixed to the top surface of the connecting plate 33 by countersunk screws and are arranged at an angle (the angle of inclination matches the outer circular surface of the intercooler heat pipe). The arc-shaped limiting block 362 is an arc-shaped plate structure, and its arc surface matches the outer circular surface of the intercooler heat pipe. It is fixed to the connecting plate 33 by screws. Above the inclined limiting seat 361, a heat sink is used to support the heat sink pipe; the top of the inclined clamping seat 363 has a through hole, which is connected to the vertical section of the inclined limiting seat 361 by bolts, with a gap between the two; several elastic clamping rods 364 pass obliquely through the through hole, with their ends extending out and contacting the arc surface of the heat sink pipe, so as to achieve flexible clamping of the heat sink pipe through elastic force; two Z-axis contact sensors 365 are fixed to the bottom of the inclined limiting seat 361 to monitor the clamping status of the elastic clamping rods 364 (such as outputting a signal prompt when the clamping force is insufficient).

[0032] The XYZ moving component 4 is installed above the top surface of the detection base 1. It is composed of Y-axis moving component 41, X-axis moving component 42 and Z-axis moving component 43 nested in sequence to form a three-dimensional moving platform, which drives the detection component 5 to the position to be detected on the intercooler.

[0033] Please see Figure 3 The Y-axis moving component 41 includes a Y-axis linear guide rail 411, a Y-axis servo motor 412, and a Y-axis transmission mechanism 413. The Y-axis linear guide rail 411 is fixed to the top surface of the detection base 1, and its length direction is perpendicular to the X-axis. The Y-axis servo motor 412 is fixed to the front end of the top surface of the detection base 1 through a motor mount. The Y-axis transmission mechanism 413 (such as a ball screw pair) connects the output shaft of the Y-axis servo motor 412 to the slider of the Y-axis moving slide 414, driving the Y-axis moving slide 414 to move along the Y-axis linear guide rail 411.

[0034] Please see Figure 4 The X-axis moving component 42 includes an X-axis linear guide rail 421, an X-axis servo motor 422, and an X-axis transmission mechanism 423. The X-axis linear guide rail 421 is fixed to the top surface of the Y-axis moving slide 414, and its length direction is perpendicular to the Y-axis. The X-axis servo motor 422 is fixed to the front end of the X-axis moving slide 424 through a motor mount. The X-axis transmission mechanism 423 connects the output shaft of the X-axis servo motor 422 to the nut of the X-axis moving slide 424, driving the X-axis moving slide 424 to move along the X-axis linear guide rail 421.

[0035] Z-axis moving component 43 includes Z-axis linear guide rail 431, Z-axis servo motor 432, and Z-axis transmission mechanism 433; Z-axis linear guide rail 431 is fixed below X-axis moving slide 424, and its length direction is consistent with Z-axis; Z-axis servo motor 432 is fixed to the top of Z-axis moving bracket 434 through motor mount; Z-axis transmission mechanism 433 connects the output shaft of Z-axis servo motor 432 to the nut of Z-axis moving slide 435, driving Z-axis moving slide 435 to move up and down along Z-axis linear guide rail 431; probe mounting bracket 52 of detection component 5 is fixed to the top surface of Z-axis moving slide 435 by bolts.

[0036] Please see Figure 2 The detection component 5 is fixed to the bottom of the Z-axis moving component 43 of the XYZ moving component 4 and is used for contact detection of the intercooler dimensions. It includes a rectangular array of detection probes 51, a probe mounting support 52, a vertical telescopic cylinder 53, a probe drive slide 54, a cylinder fixing seat 55, a probe mounting plate 56, a data acquisition module 57, a probe fixing frame 58, and four vertical guide shafts 59.

[0037] The probe mounting bracket 52 is connected to the piston rod of the vertical telescopic cylinder 53 via the probe drive slide 54 and is driven by the cylinder to move along the Z direction; the cylinder fixing seat 55 is fixed to the top surface of the Z-direction moving slide 435 and the top is fixedly connected to the cylinder body of the vertical telescopic cylinder 53.

[0038] The probe mounting plate 56 is a rectangular plate structure, fixed to the bottom surface of the probe mounting support 52, and has arrayed probe mounting holes 561 on the top surface; the detection probe 51 is a contact displacement sensor, which is fixed in the probe mounting hole 561 by threaded connection, with the probe head facing the intercooler surface to be tested (such as heat pipe spacing, flatness detection point).

[0039] The data acquisition module 57 is fixed on the top of the cylinder mounting base 55 and is electrically connected to the detection probe 51 through a signal line. It receives the displacement data fed back by the probe, processes it, and outputs the intercooler size deviation value (such as flatness error and heat pipe height deviation).

[0040] The probe fixing frame 58 is a rectangular frame structure, fixed below the cylinder fixing seat 55; the lower ends of the four vertical guide shafts 59 are fixed to the bottom of the probe fixing frame 58, and the upper ends pass through the guide holes on the probe mounting support 52 and slide to connect with the probe mounting support 52, restricting the probe mounting support 52 to move only in the Z direction, ensuring that the probe makes vertical contact with the surface to be measured, and improving the detection accuracy.

[0041] Example 2: Movable clamping assembly with pneumatic clamping

[0042] The difference between this embodiment and Embodiment 1 lies in the clamping drive method of the movable clamping component 3; the structure and connection relationship of the remaining components are the same as in Embodiment 1.

[0043] In the inclined clamping assembly 36 of the movable clamping assembly 3, the elastic clamping rod 364 is replaced with a pneumatic clamping structure: the inclined clamping seat 363 has an air hole at its top, which connects to an external pneumatic system; the elastic clamping rod 364 is a hollow structure with a spring inside, and a vent hole at its bottom; when the pneumatic system supplies air to the inclined clamping seat 363, the compressed air pushes the elastic clamping rod 364 out along the through hole, clamping the intercooler heat dissipation pipe; when the air supply is cut off, the spring returns to its original position, and the elastic clamping rod 364 retracts. This design is suitable for scenarios requiring rapid clamping, improving detection efficiency.

[0044] Example 3: Detection Component Optimized by Multi-Probe Array

[0045] The difference between this embodiment and Embodiment 1 lies in the probe layout of the detection component 5; the structure and connection relationship of the remaining components are the same as in Embodiment 1.

[0046] The probe mounting plate 56 of the detection component 5 adopts a stepped array distribution on its bottom surface: based on the characteristics of the intercooler's surface to be tested (such as dense heat pipe areas and planar areas), the density of the probe mounting holes 561 is divided into zones—the probe mounting holes 561 in dense heat pipe areas (requiring high-frequency detection points) have a smaller spacing (e.g., 5mm), while the probe mounting holes 561 in planar areas (requiring low-frequency detection points) have a larger spacing (e.g., 10mm). This design reduces the number of probes and lowers costs while ensuring detection accuracy.

[0047] In the above embodiments, the components are connected in a modular manner (such as T-bolts, countersunk screws, bolts, etc.). The X / Y direction limiting surface 211 / 241 position of the limiting clamping component 2, the Y direction moving stroke of the movable clamping component 3, and the probe layout of the detection component 5 can be adjusted according to the specific model of the intercooler, so as to realize the universal detection of intercoolers of various specifications, which has high flexibility and practicality.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tooling for inspecting the dimensions of an automotive intercooler, characterized in that, include: The testing base (1) is a rectangular plate structure with a T-slot (11) on its top surface; the limiting and clamping assembly (2) is fixed to the front end of the testing base (1) and is used to position and clamp the front end of the intercooler in the X / Y direction; the movable clamping assembly (3) is slidably disposed at the rear end of the testing base (1) and is used to adjust and clamp the rear end of the intercooler in the Y direction; the XYZ moving assembly (4) is installed above the top surface of the testing base (1) and includes a Y-direction moving assembly (41), an X-direction moving assembly (42), and a Z-direction moving assembly (43) nested in sequence. The components form a three-dimensional moving platform; the detection component (5) is fixed at the bottom of the Z-axis moving component (43) of the XYZ moving component (4), including a rectangular array of detection probes (51), a probe mounting support (52), a vertical telescopic cylinder (53) and a probe driving slide (54); wherein, the probe mounting support (52) is connected to the piston rod of the vertical telescopic cylinder (53) through the probe driving slide (54), and the top of the vertical telescopic cylinder (53) is fixed to the output end of the Z-axis moving component (43) through the cylinder fixing seat (55).

2. The automotive intercooler dimensional inspection fixture according to claim 1, characterized in that, The limiting and clamping assembly (2) includes: two L-shaped Y-direction limiting blocks (21), symmetrically arranged at the front end of the top surface of the detection base (1), with their horizontal sections fitting against the top surface of the detection base (1) and their vertical sections extending inward to form a Y-direction limiting surface (211). The L-shaped Y-direction limiting blocks (21) are fixedly connected to the T-slot (11) of the detection base (1) by T-bolts; a Z-direction clamping seat (22), which is an I-shaped plate structure, fixed to the front edge of the top surface of the detection base (1), with its vertical section parallel to the vertical section of the Y-direction limiting block (21); and an elbow clamp (23), which is... Two lever-type structures are symmetrically arranged on the Z-axis pressing seat (22), with their pressing heads (231) facing the front end of the intercooler; two L-shaped X-axis limiting seats (24) are fixed on both sides of the Y-axis limiting block (21), with the vertical section of the X-axis limiting seat (24) forming the X-axis limiting surface (241), and a sensor mounting hole (242) is opened at the bottom of its horizontal section; a proximity sensor (25) is fixed in the sensor mounting hole (242) by a threaded connection, with its sensing end face perpendicular to the X-axis limiting surface (241), used to detect whether the front end of the intercooler is in place.

3. The automotive intercooler dimensional inspection fixture according to claim 2, characterized in that, The movable clamping assembly (3) includes two parallel Y-axis guide rails (31), which are linear guide rails fixed to the rear edge of the detection base (1). The length direction of the guide rails is parallel to the extension direction of the Y-axis limiting surface (211), and the extension direction is Y. The Y-axis slide (32) is a linear slider that matches the Y-axis guide rail (31). There are two of them, which are slidably connected to the two Y-axis guide rails (31) respectively. The connecting plate (33) is a rectangular plate structure that is fixed on the top surface of the two Y-axis slides (32). Its top surface is parallel to the top surface of the detection base (1). The ball screw (34) is mounted on the screw support seat on the top surface of the detection base (1) through bearings at both ends. Its screw nut is fixedly connected to the bottom surface of the connecting plate (33). The clamping servo motor (35) is fixed at the rear end of the top surface of the detection base (1). Its output shaft is connected to the rear end of the ball screw (34) through a transmission mechanism. Two sets of oblique clamping components (36) are symmetrically arranged at the rear end of the top surface of the connecting plate (33) for flexibly clamping the heat dissipation pipe at the rear end of the intercooler.

4. The automotive intercooler dimensional inspection fixture according to claim 3, characterized in that, The oblique clamping assembly (36) includes: two parallel oblique limiting seats (361), which are fixed to the top surface of the connecting plate (33) by countersunk screws; an arc-shaped limiting block (362), which is an arc plate-shaped structure, whose arc surface is adapted to the outer circular surface of the rear heat dissipation pipe of the intercooler, and is fixed above the oblique limiting seat (361) by screws; an oblique clamping seat (363), which has a through hole at the top and is connected to the vertical section of the oblique limiting seat (361) by bolts; several elastic clamping rods (364), which obliquely pass through the through hole of the oblique clamping seat (363) and whose ends extend out to connect with the arc surface of the rear heat dissipation pipe of the intercooler; and two Z-axis contact sensors (365), which are respectively fixed to the bottom of the oblique limiting seat (361) for monitoring the clamping status of the elastic clamping rods (364).

5. The automotive intercooler dimensional inspection fixture according to claim 1, characterized in that, The XYZ moving assembly (4) includes: a Y-axis moving assembly (41), comprising a Y-axis linear guide (411), a Y-axis servo motor (412), a Y-axis transmission mechanism (413), and a Y-axis moving slide (414); the Y-axis linear guide (411) is fixed to the top surface of the detection base (1), and its length direction is perpendicular to the X-axis; the Y-axis servo motor (412) is fixed to the front end of the top surface of the detection base (1) via a motor mount; the Y-axis transmission mechanism (413) connects the output shaft of the Y-axis servo motor (412) to the slider of the Y-axis moving slide (414), driving the Y-axis moving slide (414) to move along the Y-axis linear guide (411); and an X-axis moving assembly (42), comprising an X-axis linear guide (421), an X-axis servo motor (422), an X-axis transmission mechanism (423), and an X-axis moving slide (424); the X-axis moving assembly (421) includes a Y-axis linear guide (421), an X-axis servo motor (422), an X-axis transmission mechanism (423), and an X-axis moving slide (424); the Y-axis moving assembly (412) includes a Y-axis linear guide (411), a Y-axis servo motor (41 ... A linear guide rail (421) is fixed to the top surface of the Y-axis moving slide (414), with its length direction perpendicular to the Y-axis; the X-axis servo motor (422) is fixed to the front end of the X-axis moving slide (424) via a motor mount; the X-axis transmission mechanism (423) connects the output shaft of the X-axis servo motor (422) to the nut of the X-axis moving slide (424), driving the X-axis moving slide (424) to move along the X-axis linear guide rail (421); the Z-axis moving assembly (43) includes a Z-axis linear guide rail (431), a Z-axis servo motor (432), a Z-axis transmission mechanism (433), a Z-axis moving bracket (434), and a Z-axis moving slide (435); the Z-axis linear guide rail (431) is fixed below the X-axis moving slide (424), with its length direction consistent with the Z-axis; the Z-axis linear guide rail (431) is fixed to the top surface of the Y-axis moving slide (414), with its length direction consistent with the Z-axis; the Z-axis linear guide rail (422) is fixed to the top surface of the Y-axis moving slide (414) via a motor mount; the Z-axis linear guide rail (422) is fixed to the top surface of the Y-axis moving slide (414), with its length direction perpendicular to ... The Z-axis servo motor (432) is fixed to the top of the Z-axis moving bracket (434) via a motor mount; the Z-axis transmission mechanism (433) connects the output shaft of the Z-axis servo motor (432) to the nut of the Z-axis moving slide (435), driving the Z-axis moving slide (435) to move up and down along the Z-axis linear guide rail (431); the probe mounting bracket (52) of the detection component (5) is fixed to the top surface of the Z-axis moving slide (435) by bolts.

6. The automotive intercooler dimensional inspection fixture according to claim 1, characterized in that, The detection component (5) further includes: a probe mounting plate (56), which is a rectangular plate structure and is fixed to the bottom surface of the probe mounting support (52). The top surface of the plate has an array of probe mounting holes (561). The detection probe (51) is a contact displacement sensor and is fixed in the probe mounting hole (561) by a threaded connection. The probe head faces the intercooler surface to be detected. A data acquisition module (57) is fixed to the top of the cylinder mounting base (55) and is electrically connected to the detection probe (51) through a signal line. It is used to receive and process the displacement data fed back by the probe and output the intercooler size deviation value. A probe fixing frame (58) is a rectangular frame structure and is fixed to the bottom of the cylinder mounting base (55). Four vertical guide shafts (59) are fixed at the bottom of the probe fixing frame (58) at the bottom and pass through the guide holes on the probe mounting support (52) at the top and slide to the probe mounting support (52). They are used to limit the movement direction of the probe mounting support (52).

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