A heat treatment station device for automobile chassis parts and a device for preventing the parts from falling off

Abstract

This invention relates to the field of heat treatment technology for automotive parts, and in particular provides a heat treatment station fixture and anti-detachment device for automotive chassis parts. The heat treatment station fixture for automotive chassis parts includes a fixture frame, two flange fixture assemblies, and two end fixture assemblies. This invention forms a dual fixing mechanism of pneumatic pressing and mechanical hard locking, ensuring a constant clamping force on the automotive chassis parts and preventing parts from falling off. It also provides coordinated rigid clamping of the end body and flange ends of the automotive chassis parts, further ensuring stable clamping. Furthermore, it ensures constant and stable control of the clamping force during heat treatment and allows the automotive chassis parts to undergo a certain degree of thermal expansion and contraction during heat treatment, avoiding thermal stress generated by rigid clamping. This ensures the dimensional accuracy and posture stability of the workpiece throughout the entire process, achieving consistent positioning references throughout the heat treatment process.

Description

Technical Field

[0001] This invention relates to the field of heat treatment technology for automotive parts, and in particular provides a heat treatment station fixture and anti-detachment device for automotive chassis parts. Background Technology

[0002] Heat treatment is a core process in the manufacturing of automotive chassis components that determines their final mechanical properties and service life. It covers multiple stages, including tempering, normalizing, tempering and local induction hardening. Heat treatment station equipment (also known as heat treatment racks, baskets, tooling) is the basic equipment that enables automotive chassis components to complete the entire heat treatment process.

[0003] Existing heat treatment fixtures are mostly general-purpose welded heat-resistant steel baskets and layered fixed racks. However, automotive chassis components (such as steering knuckles) are often asymmetrical and complex structures, resulting in uneven distribution of their overall center of gravity. The support points of existing general-purpose tooling are often arbitrarily set in low-rigidity, thin-walled areas such as journals and cantilever ends of steering arms, rather than high-rigidity, non-working reference surfaces such as flange faces. This unreasonable support layout can lead to irreversible heat treatment deformations such as journal bending, flange warping, and excessive coaxiality of kingpin holes under the weight of the workpiece, resulting in direct scrapping of the workpiece. At the same time, existing tooling does not have an independent isolation structure for each piece. Workpieces are densely stacked and freely placed without gaps in the clamping method. There is no effective isolation between workpieces. During the process of moving in the heat treatment furnace, workpieces are very prone to mutual squeezing, collision, and friction, causing defects such as surface pits, scratches, and dents, which significantly reduces the fatigue life of the workpieces. Summary of the Invention

[0004] Therefore, it is necessary to provide a heat treatment station fixture and anti-detachment device for automotive chassis components to solve at least one of the technical problems in the background art.

[0005] A heat treatment station fixture for automotive chassis components includes a fixture frame, two flange fixture assemblies, and two end fixture assemblies. An end lifting frame is provided at the bottom and middle of one end of the fixture frame, and a flange adjusting frame is provided at the bottom and middle of the other end of the fixture frame. An adjusting rotation motor is located in the middle of the inner end of the flange adjusting frame, and a flange mounting frame is mounted on the output shaft of the adjusting rotation motor. A triangular air guide is provided at the bottom of the flange mounting frame. The two flange fixture assemblies are respectively installed in the two flange mounting frames. Each flange fixture assembly includes a guide clamping frame, an outer mounting low platform, an inner mounting high platform, a trapezoidal rotating frame, and flange fixture elements. The bottom of the guide clamping frame is installed on the inner end of the top surface of the flange mounting frame, and the outer mounting... The bottom of the low mounting platform is installed on the outer end of the top surface of the flange mounting bracket. The side wall of the low mounting platform is recessed with a first vertical groove, and a first adjusting bolt is slidably installed in the first vertical groove. The bottom of the high mounting platform is installed in the middle of the top surface of the flange mounting bracket. The side wall of the high mounting platform is recessed with a second vertical groove, and a second adjusting bolt is slidably installed in the second vertical groove. The bottom two ends of the trapezoidal rotating frame are respectively rotatably installed in the first adjusting bolt and the second adjusting bolt. The top two ends of the trapezoidal rotating frame are respectively provided with buffer mounting platforms. A transverse buffer is provided between the two buffer mounting platforms. The flange tooling element is slidably installed on the top of the trapezoidal rotating frame and connected to the transverse buffer. The two end tooling components are respectively installed in the two end lifting frames.

[0006] As a further improvement of the present invention, the flange tooling component includes a flange tooling frame, a flange adjusting cylinder, a flange clamping frame, a flange clamping turntable, a flange clamping cylinder, and flange clamping claws. The bottom of the flange tooling frame is laterally slidably mounted on the top of the trapezoidal turntable and connected to a lateral buffer. The flange adjusting cylinder is mounted on the outer end of the top of the flange tooling frame. The bottom of the flange clamping frame is laterally slidably mounted on the inner end of the top of the flange tooling frame, and the flange clamping frame is connected to the output shaft of the flange adjusting cylinder. A centering clamp is provided at the inner end of the flange clamping frame. The bottom of the flange clamping turntable is mounted on the top of the flange clamping frame. The flange clamping cylinder is rotatably mounted on the outer end of the flange clamping turntable. The outer end of the flange clamping claws is rotatably mounted on the inner end of the flange clamping turntable, and the output shaft of the flange clamping cylinder is rotatably connected to the outer end of the flange clamping claws.

[0007] As a further improvement of the present invention, the end tooling assembly includes an end tooling plate, an end vertical tilting platform, a pressing vertical plate, a pressing element, a locking element, and a floating element. The bottom of the end tooling plate is installed on the top of the end lifting frame, the bottom of the end vertical tilting platform is installed in the middle of the top surface of the end tooling plate, the bottom of the pressing vertical plate is installed in the middle of the inner side of the top surface of the end tooling plate, vertical slide rails are respectively provided at both ends of the inner side of the pressing vertical plate, the pressing element is installed on the top of the pressing vertical plate, the locking element is installed on the bottom of the pressing vertical plate, and the floating element is installed in the end tooling plate.

[0008] As a further improvement of the present invention, the two ends of the inner side of the vertical tilting platform at the end are respectively provided with limiting guide blocks, the middle of one side of the vertical tilting platform at the end is provided with a preset through groove, and the middle of the outer side of the vertical tilting platform at the end is provided with a pull-back mounting block and a push-mounting platform.

[0009] As a further improvement of the present invention, a vertical sliding column platform is provided at the top of the inner side of the pressing vertical plate, a vertical cylinder platform is provided at the outer end of the bottom of the inner side of the pressing vertical plate, and a locking and mounting turntable is provided at the bottom of the inner side of the pressing vertical plate. The locking and mounting turntable is recessed with a vertical strip-shaped sliding groove, and a floating sliding shaft is slidably arranged in the vertical strip-shaped sliding groove.

[0010] As a further improvement of the present invention, the pressing element includes a pressing frame-shaped slide, a pressing sector-shaped plate, a pressing drive cylinder, and a pressing slide rod. The two ends of the inner side of the pressing frame-shaped slide are slidably installed in two vertical slide rails, and a synchronous sliding vertical plate is provided in the middle of the inner side of the pressing frame-shaped slide. A locking groove is recessed at the bottom of the outer side of the synchronous sliding vertical plate, and a floating abutment block is provided at the bottom of the inner end of the synchronous sliding vertical plate. The pressing sector-shaped plate is installed on the outer side of the pressing frame-shaped slide. The bottom of the pressing drive cylinder is installed in a vertical cylinder platform, and the top of the pressing slide rod is slidably installed in a vertical slide column platform. A pressing elastic buffer is provided at the bottom of the pressing slide rod. The bottom of the pressing elastic buffer is connected to the pressing frame-shaped slide, and the top of the pressing elastic buffer is connected to the output shaft of the pressing drive cylinder.

[0011] As a further improvement of the present invention, the locking element includes a floating hook, a locking adjustment cylinder, and a locking restraining spring. The bottom of the floating hook is installed in the floating slide shaft, and the top of the floating hook is locked to the locking groove. The locking adjustment cylinder is installed in the pushing mounting platform, and the output shaft of the locking adjustment cylinder abuts against the middle of the floating hook. One end of the locking restraining spring is connected to the pull-back mounting block, and the other end of the locking restraining spring is connected to the floating hook.

[0012] As a further improvement of the present invention, the floating element includes a floating presser and a floating pressing plate. The bottom of the floating presser is installed on the inner end of the top surface of the end tooling plate. One end of the floating pressing plate is installed on the output shaft of the floating presser, and the other end of the floating pressing plate is provided with a pressing roller. The pressing roller abuts against the inner side of the top surface of the floating support block.

[0013] A heat treatment anti-detachment device includes an anti-detachment frame, multiple first bottom tilting cylinders, multiple second bottom tilting cylinders, a material rack base plate, multiple first vertical sliding tables, multiple second vertical sliding tables, an upper conveyor rack, anti-detachment elements, and multiple heat treatment station fixtures for automotive chassis parts. The multiple first bottom tilting cylinders are spaced apart along the length direction on the outer bottom of the anti-detachment frame, and the multiple second bottom tilting cylinders are spaced apart along the length direction on the inner bottom of the anti-detachment frame. The bottom sides of the material rack base plate are rotatably connected to the output shafts of the multiple first bottom tilting cylinders and the multiple second bottom tilting cylinders, respectively. Multiple lower conveyor wheels are spaced apart along the length direction on the top of the material rack base plate. Multiple lower guide wheels are spaced apart along the width direction at the top of the conveyor frame. Multiple first vertical sliding platforms are spaced apart along the length direction on the top of the outer side of the anti-detachment frame. Multiple second vertical sliding platforms are spaced apart along the length direction on the top of the inner side of the anti-detachment frame. The top two sides of the upper conveyor frame are rotatably connected to multiple first vertical sliding platforms and multiple second vertical sliding platforms respectively. Multiple upper conveyor frames are spaced apart along the length direction at the bottom of the upper conveyor frame. Multiple upper guide wheels are spaced apart along the width direction at the top of the upper conveyor frames. Anti-detachment elements are installed on the top of the anti-detachment frame. Multiple heat treatment station fixtures for automotive chassis parts are arrayed and placed between the base plate of the material rack and the upper conveyor frame.

[0014] As a further improvement of the present invention, the anti-detachment element includes two anti-detachment mounting shafts, four anti-detachment pushers, an anti-detachment support frame, two lateral support frames, and multiple elastic support pieces. The two anti-detachment mounting shafts are rotatably mounted on one side of the top two ends of the anti-detachment frame, the four anti-detachment pushers are respectively mounted on the top two ends of both sides of the anti-detachment frame, the top two ends of the anti-detachment support frame are respectively connected to the two anti-detachment mounting shafts, the two lateral support frames are respectively mounted on both sides of the anti-detachment support frame, the bottom sides of the two lateral support frames are respectively provided with longitudinal strips of support pieces, the tops of the multiple elastic support pieces are respectively arrayed and mounted in the two lateral support frames, and the bottoms of the multiple elastic support pieces respectively abut against the tops of multiple appliance racks.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention utilizes the combination of pressing and locking components to form a dual fixing mechanism of pneumatic pressing and mechanical hard locking, ensuring a constant clamping force on the automotive chassis components and preventing components from falling off. It also provides a two-way rigid clamping of the end body and flange end of the automotive chassis components, further ensuring stable clamping of the automotive chassis components. Furthermore, it allows for multi-angle adjustment of the flange tooling components, precisely changing their locking angle, and can adapt to the asymmetrical and complex structure of automotive chassis components. In addition, the clamping and unloading process is simple and convenient, improving loading and unloading efficiency.

[0017] 2. This solution utilizes end tooling components for multi-level buffering and, in conjunction with the lateral buffering of flange tooling components, ensures constant and stable control of clamping force during heat treatment. It also allows automotive chassis components to undergo a certain degree of thermal expansion and contraction during heat treatment, avoiding thermal stress generated by rigid clamping. This ensures the dimensional accuracy and posture stability of the workpiece throughout the entire process and prevents workpiece displacement and deformation during heat treatment, achieving consistent positioning reference throughout the entire heat treatment process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a heat treatment station fixture for automotive chassis components according to an embodiment of the present invention.

[0019] Figure 2 This is a perspective view of the flange tooling assembly and the end tooling assembly in one embodiment of the present invention.

[0020] Figure 3 This is a perspective view of a flange tooling assembly according to an embodiment of the present invention.

[0021] Figure 4 This is a three-dimensional schematic diagram of an end tooling assembly according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the internal structure of the end tooling assembly in one embodiment of the present invention.

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0024] Figure 7 This is a three-dimensional schematic diagram of a heat treatment anti-detachment device and a heat treatment station fixture for multiple automotive chassis components in one embodiment of the present invention.

[0025] Figure 8 This is a three-dimensional schematic diagram of the heat treatment anti-detachment device and the heat treatment station fixture for automobile chassis parts in one embodiment of the present invention.

[0026] In the picture:

[0027] 10. Tool rack; 11. End lifting frame; 12. Flange adjusting frame; 121. Adjusting rotary motor; 122. Flange mounting frame; 123. Triangular air guide vane; 20. Flange tooling assembly; 21. Guide clamping frame; 22. External mounting low platform; 221. First vertical slide rail; 23. Internal mounting high platform; 231. Second vertical slide rail; 24. Trapezoidal rotating frame; 241. Buffer mounting platform; 25. Flange tooling components; 251. Flange tooling frame; 252. Flange adjusting cylinder; 253. Flange clamping Frame; 254. Flange clamping turntable; 255. Flange clamping cylinder; 256. Flange clamping claw; 257. Centering clamp; 30. End tooling assembly; 31. End tooling plate; 32. End vertical tilting platform; 321. Limiting guide block; 322. Pre-set through groove; 323. Pull-back mounting block; 324. Push-up mounting platform; 33. Pressing vertical plate; 330. Vertical sliding column platform; 331. Vertical slide rail; 332. Vertical cylinder platform; 333. Clamping mounting turntable; 334. Vertical strip slide 335. Floating slide shaft; 34. Pressing element; 341. Pressing frame slide; 342. Pressing sector plate; 343. Pressing drive cylinder; 344. Pressing slide rod; 345. Pressing elastic buffer; 346. Synchronous sliding vertical plate; 347. Locking slot; 348. Floating support block; 35. Locking element; 351. Floating hook; 352. Locking adjusting cylinder; 353. Locking limiting spring; 36. Floating element; 361. Floating presser; 362. Floating pressing turntable; 363. 40. Pressing roller; 41. Anti-detachment frame; 42. First bottom tilting cylinder; 43. Second bottom tilting cylinder; 44. First vertical sliding table; 45. Second vertical sliding table; 56. Material rack base plate; 57. Lower transport wheel frame; 58. Lower guide wheel; 69. Upper transport rack; 60. Upper transport wheel frame; 61. Upper guide wheel; 62. Upper guide wheel; 70. Anti-detachment element; 71. Anti-detachment mounting shaft; 72. Anti-detachment pusher; 73. Anti-detachment support frame; 74. Lateral support frame; 75. Elastic support piece; 76. Longitudinal strip of support piece. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0029] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 8 A heat treatment station fixture for automotive chassis components includes a fixture frame 10, two flange fixture assemblies 20, and two end fixture assemblies 30. An end lifting frame 11 is provided at the bottom and middle of one end of the fixture frame 10, and a flange adjusting frame 12 is provided at the bottom and middle of the other end of the fixture frame 10. An adjusting rotary motor 121 is provided in the middle of the inner end of the flange adjusting frame 12. A flange mounting frame 122 is provided on the output shaft of the adjusting rotary motor 121. A triangular air guide 123 is provided at the bottom of the flange mounting frame 122. The two flange fixture assemblies 20 are respectively installed in the two flange mounting frames 122. Each flange fixture assembly 20 includes a guide clamping frame 21, an outer mounting low platform 22, an inner mounting high platform 23, a trapezoidal rotating frame 24, and flange fixture elements 25. The bottom of the guide clamping frame 21 is installed on the top surface of the flange mounting frame 122. The inner end of the outer mounting platform 22 is installed at the bottom of the outer end of the top surface of the flange mounting bracket 122. The side wall of the outer mounting platform 22 is recessed with a first vertical groove 221. A first adjusting bolt is slidably installed in the first vertical groove 221. The bottom of the inner mounting platform 23 is installed at the middle of the top surface of the flange mounting bracket 122. The side wall of the inner mounting platform 23 is recessed with a second vertical groove 231. A second adjusting bolt is slidably installed in the second vertical groove 231. The bottom two ends of the trapezoidal rotating frame 24 are rotatably installed in the first adjusting bolt and the second adjusting bolt, respectively. The top two ends of the trapezoidal rotating frame 24 are respectively provided with buffer mounting platforms 241. A transverse buffer is provided between the two buffer mounting platforms 241. The flange tooling element 25 is slidably installed on the top of the trapezoidal rotating frame 24 and connected to the transverse buffer. The two end tooling components 30 are respectively installed in the two end lifting frames 11.

[0032] The flange tooling component 25 includes a flange tooling frame 251, a flange adjusting cylinder 252, a flange clamping bracket 253, a flange clamping turntable 254, a flange clamping cylinder 255, and flange clamping claws 256. The flange tooling frame 251 is laterally slidably mounted on the top of the trapezoidal turntable 24 and connected to a lateral buffer. The flange adjusting cylinder 252 is mounted on the outer top of the flange tooling frame 251, and the flange clamping bracket 253 is laterally slidably mounted on the inner top of the flange tooling frame 251. Furthermore, the flange clamping bracket 253 is connected to the output shaft of the flange adjusting cylinder 252, and a centering clamp 257 is provided at the inner end of the flange clamping bracket 253. The bottom of the flange clamping turntable 254 is installed on the top of the flange clamping bracket 253, the flange clamping cylinder 255 is rotatably installed at the outer end of the flange clamping turntable 254, and the outer end of the flange clamping claw 256 is rotatably installed at the inner end of the flange clamping turntable 254. The output shaft of the flange clamping cylinder 255 is rotatably connected to the outer end of the flange clamping claw 256.

[0033] The end tooling assembly 30 includes an end tooling plate 31, an end vertical tilting platform 32, a pressing vertical plate 33, a pressing element 34, a locking element 35, and a floating element 36. The bottom of the end tooling plate 31 is installed on the top of the end lifting frame 11. The bottom of the end vertical tilting platform 32 is installed in the middle of the top surface of the end tooling plate 31. The bottom of the pressing vertical plate 33 is installed in the middle of the inner side of the top surface of the end tooling plate 31. Vertical slide rails 331 are respectively provided at both ends of the inner side of the pressing vertical plate 33. The pressing element 34 is installed on the top of the pressing vertical plate 33. The locking element 35 is installed on the bottom of the pressing vertical plate 33. The floating element 36 is installed in the end tooling plate 31.

[0034] The vertical tilting platform 32 at the end has a limiting guide block 321 protruding at both ends of its inner side, a pre-set passage groove 322 recessed in the middle of one side of the vertical tilting platform 32, and a pull-back mounting block 323 and a push mounting platform 324 provided in the middle of the outer side of the vertical tilting platform 32.

[0035] A vertical sliding column platform 330 is provided on the top inner side of the pressing vertical plate 33, a vertical cylinder platform 332 is provided on the outer end of the bottom inner side of the pressing vertical plate 33, a locking and mounting turntable 333 is provided on the bottom inner side of the pressing vertical plate 33, a vertical strip-shaped sliding groove 334 is recessed in the locking and mounting turntable 333, and a floating sliding shaft 335 is slidably arranged in the vertical strip-shaped sliding groove 334.

[0036] The pressing element 34 includes a pressing frame-shaped slide 341, a pressing sector-shaped plate 342, a pressing drive cylinder 343, and a pressing slide rod 344. The two ends of the inner side of the pressing frame-shaped slide 341 are slidably installed in two vertical slide rails 331. A synchronous sliding vertical plate 346 is provided in the middle of the inner side of the pressing frame-shaped slide 341. A locking groove 347 is recessed at the bottom of the outer side of the synchronous sliding vertical plate 346. A floating abutment block 348 is provided at the bottom of the inner end of the synchronous sliding vertical plate 346. The pressing sector plate 342 is installed on the outside of the pressing frame slide 341. The bottom of the pressing drive cylinder 343 is installed in the vertical cylinder platform 332. The top of the pressing slide rod 344 is slidably installed in the vertical slide column platform 330. The bottom of the pressing slide rod 344 is provided with a pressing elastic buffer 345. The bottom of the pressing elastic buffer 345 is connected to the pressing frame slide 341, and the top of the pressing elastic buffer 345 is connected to the output shaft of the pressing drive cylinder 343.

[0037] The locking element 35 includes a floating hook 351, a locking adjustment cylinder 352, and a locking restraining spring 353. The bottom of the floating hook 351 is installed in the floating slide shaft 335, and the top of the floating hook 351 is locked and connected to the locking groove 347. The locking adjustment cylinder 352 is installed in the pushing mounting platform 324, and the output shaft of the locking adjustment cylinder 352 abuts against the middle of the floating hook 351. One end of the locking restraining spring 353 is connected to the pull-back mounting block 323, and the other end of the locking restraining spring 353 is connected to the floating hook 351.

[0038] The floating element 36 includes a floating presser 361 and a floating pressing plate 362. The bottom of the floating presser 361 is installed on the inner end of the top surface of the end tooling plate 31. One end of the floating pressing plate 362 is installed on the output shaft of the floating presser 361, and the other end of the floating pressing plate 362 is provided with a pressing roller 363, which abuts against the inner side of the top surface of the floating support block 348.

[0039] Please see Figures 7 to 8A heat treatment anti-detachment device includes an anti-detachment frame 40, a plurality of first bottom tilting cylinders 41, a plurality of second bottom tilting cylinders 42, a material rack base plate 50, a plurality of first vertical sliding tables 43, a plurality of second vertical sliding tables 44, an upper transport rack 60, an anti-detachment element 70, and a plurality of heat treatment station fixtures for automobile chassis parts as described in claims 1-8. The plurality of first bottom tilting cylinders 41 are respectively installed at intervals along the length direction on the outer bottom of the anti-detachment frame 40, and the plurality of second bottom tilting cylinders 42 are respectively installed at intervals along the length direction on the inner bottom of the anti-detachment frame 40. The bottom sides of the material rack base plate 50 are rotatably connected to the output shafts of the plurality of first bottom tilting cylinders 41 and the plurality of second bottom tilting cylinders 42, respectively. A plurality of lower transport wheels are spaced at intervals along the length direction on the top of the material rack base plate 50. The frame 51 has multiple lower guide wheels 52 spaced apart along the width direction on the top of the lower transport wheel frame 51. Multiple first vertical sliding tables 43 are spaced apart along the length direction on the top of the outer side of the anti-detachment frame 40. Multiple second vertical sliding tables 44 are spaced apart along the length direction on the top of the inner side of the anti-detachment frame 40. The top two sides of the upper transport rack 60 are rotatably connected to multiple first vertical sliding tables 43 and multiple second vertical sliding tables 44 respectively. Multiple upper transport wheel frames 61 are spaced apart along the length direction at the bottom of the upper transport rack 60. Multiple upper guide wheels 62 are spaced apart along the width direction on the top of the upper transport wheel frames 61. Anti-detachment element 70 is installed on the top of the anti-detachment frame 40. Multiple heat treatment station equipment for automotive chassis parts are arrayed and placed between the rack base plate 50 and the upper transport rack 60.

[0040] The anti-detachment element 70 includes two anti-detachment mounting shafts 71, four anti-detachment pushers 72, an anti-detachment support frame 73, two lateral support frames 74, and multiple elastic support pieces 75. The two anti-detachment mounting shafts 71 are rotatably mounted on one side of the top end of the anti-detachment frame 40, the four anti-detachment pushers 72 are mounted on the top ends of both sides of the anti-detachment frame 40, the top ends of the anti-detachment support frame 73 are connected to the two anti-detachment mounting shafts 71, the two lateral support frames 74 are mounted on both sides of the anti-detachment support frame 73, and longitudinal strips 76 of support pieces are protruding from the bottom sides of the two lateral support frames 74. The tops of the multiple elastic support pieces 75 are respectively arrayed in the two lateral support frames 74, and the bottoms of the multiple elastic support pieces 75 respectively abut against the tops of the multiple device holders 10.

[0041] For example, in one embodiment: two automotive chassis components are placed on the top of the vertical inclined platform 32 at the ends of two end tooling assemblies 30, with one end of the component having a flange adjacent to the flange tooling assembly 20. One end of the automotive chassis component is placed on the top of the guide clamping bracket 21. Then, the pressing drive cylinder 343 is activated, which pulls the pressing slide rod 344 and the pressing elastic buffer 345 downward, thereby driving the pressing frame slide 341 and the synchronous sliding vertical plate 346 to move downward along the two vertical slide rails 331. This causes the pressing fan-shaped plate 342 to move downward as well, clamping and fixing the automotive chassis component below. Furthermore, the downward movement of the synchronous sliding vertical plate 346 causes the clamping groove 347 to move accordingly, thereby allowing the subsequent floating hook 351 to engage in the clamping groove 347, ensuring the stability of the clamping and fixing of the automotive chassis component. Subsequently, the first and second adjusting bolts are adjusted according to the degree of bending of the car chassis components, thereby adjusting the tilt angle of the trapezoidal rotating frame 24. Then, the flange adjusting cylinder 252 is activated, driving the flange clamping frame 253 to move towards one end of the car chassis component until its centering clamp 257 is inserted into the car chassis component. Then, the flange clamping cylinder 255 is activated, driving the flange clamping claw 256 to rotate and move downward to clamp and fix the car chassis component, ensuring the stability of the car chassis component in subsequent processing.

[0042] After the multiple heat treatment station fixtures have finished clamping and loading the automotive chassis parts, the multiple automotive chassis parts array is placed between multiple lower transport wheel frames 51 and multiple upper transport wheel frames 61. During placement, four anti-detachment pushers 72 are activated, driving the anti-detachment support frame 73 to rotate around two anti-detachment mounting shafts 71 and tilt to one side, so that the heat treatment station fixtures can enter quickly. Subsequently, the four anti-detachment pushers 72 are activated again, driving the anti-detachment support frame 73 to rotate again, so that the tilt angle of its bottom surface is parallel to the tilt angle of the material rack base plate 50, thereby causing the bottom of multiple elastic support pieces 75 to abut against the top of multiple fixture racks 10 respectively, holding and fixing the heat treatment station fixtures and preventing them from moving during subsequent transportation.

[0043] For example, in one embodiment: when vibration occurs during movement or processing, the vibration force will be transmitted to the vehicle chassis components, and then to the pressing sector plate 342, causing the pressing sector plate 342 and the pressing frame slide 341 to float upward, causing the pressing elastic buffer 345 to compress, buffering the vibration force, and causing the floating hook 351 and the floating slide shaft 335 to float vertically along the vertical strip slide 334 to ensure the stability of the locking during vibration. The floating of the pressing frame slide 341 will cause the floating support block 348 to move accordingly, thereby causing the pushing and pressing roller 363 and the floating pressing turn plate 362 to rotate accordingly, and then the floating presser 361 will further buffer and pressurize them.

[0044] In addition, slight floating of the vehicle chassis components will cause the flange tooling element 25 of the flange tooling assembly 20 to float laterally along the top surface of the trapezoidal frame 24, and the lateral buffer therein will be used to buffer and reduce vibration.

[0045] For example, in one embodiment: after processing is completed, four anti-detachment pushers 72 are activated, driving the anti-detachment support frame 73 to rotate towards the higher tilt point, so that the heat treatment station fixture can move down along the inclined material rack base plate 50 and be quickly removed. Subsequently, the flange clamping cylinder 255 and the flange adjusting cylinder 252 are activated in reverse, sequentially driving the flange clamping claw 256 to rotate open and driving the flange locking frame 253 to retract and disengage, thus canceling the locking of the automobile chassis parts. The locking adjusting cylinder 352 and the pressing drive cylinder 343 are activated, causing the output shaft of the locking adjusting cylinder 352 to extend, pushing the floating hook 351 to rotate outward, thus canceling the locking of the pressing frame slide 341. The pressing drive cylinder 343 causes the pressing frame slide 341 to move upward, thereby causing the pressing fan plate 342 to move upward as well, thus canceling the overall locking of the heat treatment station fixture, so that the heat treatment station fixture can be quickly and easily removed.

[0046] Installation process: Install the two flange tooling assemblies 20 into the two flange mounting brackets 122 respectively, and install the two end tooling assemblies 30 into the two end lifting brackets 11 respectively. Install the bottom of the guide clamping bracket 21 into the inner end of the top surface of the flange mounting bracket 122, and install the bottom of the outer mounting platform 22 into the outer end of the top surface of the flange mounting bracket 122. Rotate the bottom ends of the trapezoidal rotating bracket 24 into the first adjusting bolt and the second adjusting bolt respectively. The bottom of the flange tooling bracket 251 is laterally slidably installed on the top of the trapezoidal rotating bracket 24 and connected to the lateral buffer. The flange adjusting cylinder 252 is installed on the outer end of the top of the flange tooling bracket 251. The bottom of the clamping bracket 253 is horizontally slidably mounted on the inner top of the flange tooling bracket 251, and the flange clamping bracket 253 is connected to the output shaft of the flange adjusting cylinder 252. The bottom of the flange clamping turntable 254 is mounted on the top of the flange clamping bracket 253. The flange clamping cylinder 255 is rotatably mounted on the outer end of the flange clamping turntable 254. The outer end of the flange clamping claw 256 is rotatably mounted on the inner end of the flange clamping turntable 254, and the output shaft of the flange clamping cylinder 255 is rotatably connected to the outer end of the flange clamping claw 256. The bottom of the end tooling plate 31 is mounted on the top of the end lifting bracket 11, and the bottom of the end vertical tilting platform 32 is mounted on the end tooling plate. At the center of the top surface of the end tooling plate 31, the bottom of the pressing vertical plate 33 is installed on the center of the inner side of the top surface of the end tooling plate 31. The two ends of the inner side of the pressing frame-shaped slide 341 are slidably installed in the two vertical slide rails 331 respectively. The pressing fan-shaped plate 342 is installed on the outer side of the pressing frame-shaped slide 341. The bottom of the pressing drive cylinder 343 is installed in the vertical cylinder platform 332. The top of the pressing slide rod 344 is slidably installed in the vertical slide column platform 330. The bottom of the pressing elastic buffer 345 is connected to the pressing frame-shaped slide 341. The top of the pressing elastic buffer 345 is connected to the output shaft of the pressing drive cylinder 343. The bottom of the floating hook 351 is installed on the floating... In the movable sliding shaft 335, the top of the floating hook 351 is engaged with the locking groove 347. The locking adjustment cylinder 352 is installed in the pushing mounting platform 324, and the output shaft of the locking adjustment cylinder 352 abuts against the middle of the floating hook 351. One end of the locking limiting spring 353 is connected to the pull-back mounting block 323, and the other end of the locking limiting spring 353 is connected to the floating hook 351. The bottom of the floating presser 361 is installed on the inner end of the top surface of the end tooling plate 31. One end of the floating pressing rotating plate 362 is installed on the output shaft of the floating presser 361, and the pressing roller 363 abuts against the inner side of the top surface of the floating support block 348.Multiple first bottom tilting cylinders 41 are installed at intervals along the length direction on the outer bottom of the anti-detachment frame 40, and multiple second bottom tilting cylinders 42 are installed at intervals along the length direction on the inner bottom of the anti-detachment frame 40. The bottom sides of the material rack base plate 50 are rotatably connected to the output shafts of the multiple first bottom tilting cylinders 41 and the multiple second bottom tilting cylinders 42, respectively. Multiple first vertical sliding tables 43 are installed at intervals along the length direction on the outer top of the anti-detachment frame 40, and multiple second vertical sliding tables 44 are installed at intervals along the length direction on the inner top of the anti-detachment frame 40. The top sides of the upper conveyor rack 60 are respectively... The device is rotatably connected to multiple first vertical sliding platforms 43 and multiple second vertical sliding platforms 44. Two anti-detachment mounting shafts 71 are rotatably mounted on one side of the top two ends of the anti-detachment frame 40, and four anti-detachment pushers 72 are respectively mounted on the top two ends of both sides of the anti-detachment frame 40. The top two ends of the anti-detachment support frame 73 are respectively connected to the two anti-detachment mounting shafts 71. Two lateral support frames 74 are respectively mounted on both sides of the anti-detachment support frame 73. The tops of multiple elastic support pieces 75 are respectively arrayed in the two lateral support frames 74, and the bottoms of the multiple elastic support pieces 75 respectively abut against the tops of multiple device racks 10.

[0047] This invention can achieve:

[0048] 1. This invention utilizes the cooperation of pressing element 34 and clamping element 35 to form a dual fixing mechanism of pneumatic pressing and mechanical hard locking, ensuring a constant clamping force on the automotive chassis components and preventing components from falling off. It also provides a two-way rigid clamping of the end body and flange end of the automotive chassis components, further ensuring stable clamping of the automotive chassis components. Furthermore, it allows for multi-angle adjustment of the flange tooling element 25, precisely changing its clamping angle, which can adapt to the asymmetrical and complex structure of automotive chassis components. In addition, the clamping and unloading process is simple and convenient, improving loading and unloading efficiency.

[0049] 2. This invention utilizes the end tooling assembly 30 for multi-level buffering and cooperates with the flange tooling assembly 20 for lateral buffering to ensure constant and stable control of the clamping force during heat treatment. It also allows the automotive chassis components to undergo a certain degree of thermal expansion and contraction during heat treatment, avoiding thermal stress generated by rigid clamping. This ensures the dimensional accuracy and posture stability of the workpiece throughout the entire process and prevents problems such as workpiece displacement and deformation during heat treatment, achieving consistent positioning reference throughout the entire heat treatment process.

[0050] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A heat treatment station fixture for automotive chassis components, characterized in that: The assembly includes a tool rack (10), two flange tooling assemblies (20), and two end tooling assemblies (30). One end of the tool rack (10) has an end lifting frame (11) at its bottom and middle. The other end of the tool rack (10) has a flange adjusting frame (12) at its bottom and middle. An adjusting rotating motor (121) is located in the middle of the inner end of the flange adjusting frame (12). A flange mounting frame (122) is mounted on the output shaft of the adjusting rotating motor (121). A triangular air guide plate (123) is located at the bottom of the flange mounting frame (122). The two flange tooling assemblies (20) are installed in the two flange mounting frames (122). Each flange tooling assembly (20) includes a guide clamping frame (21), an outer mounting low platform (22), an inner mounting high platform (23), a trapezoidal rotating frame (24), and flange tooling elements (25). The bottom of the guide clamping frame (21) is installed on the inner end of the top surface of the flange mounting frame (122). The bottom of the mounting platform (22) is installed on the outer end of the top surface of the flange mounting bracket (122). The side wall of the outer mounting platform (22) is recessed with a first vertical groove (221). A first adjusting bolt is slidably installed in the first vertical groove (221). The bottom of the inner mounting platform (23) is installed in the middle of the top surface of the flange mounting bracket (122). The side wall of the inner mounting platform (23) is recessed with a second vertical groove (231). A second adjusting bolt is slidably installed in the second vertical groove (231). The bottom two ends of the trapezoidal rotating frame (24) are rotatably installed in the first adjusting bolt and the second adjusting bolt, respectively. The top two ends of the trapezoidal rotating frame (24) are respectively provided with buffer mounting platforms (241). A transverse buffer is provided between the two buffer mounting platforms (241). The flange tooling element (25) is slidably installed on the top of the trapezoidal rotating frame (24) and connected to the transverse buffer. The two end tooling components (30) are respectively installed in the two end lifting frames (11).

2. The heat treatment station fixture for automotive chassis components according to claim 1, characterized in that: The flange tooling component (25) includes a flange tooling frame (251), a flange adjusting cylinder (252), a flange clamping bracket (253), a flange clamping turntable (254), a flange clamping cylinder (255), and flange clamping claws (256). The bottom of the flange tooling frame (251) is horizontally slidably mounted on the top of the trapezoidal turntable (24) and connected to the horizontal buffer. The flange adjusting cylinder (252) is mounted on the outer top of the flange tooling frame (251). The bottom of the flange clamping bracket (253) is horizontally slidably mounted on the inner top of the flange tooling frame (251). The flange clamping bracket (253) is connected to the output shaft of the flange adjusting cylinder (252). A centering clamp (257) is provided at the inner end of the flange clamping bracket (253). The bottom of the flange clamping turntable (254) is installed on the top of the flange clamping bracket (253). The flange clamping cylinder (255) is rotatably installed at the outer end of the flange clamping turntable (254). The outer end of the flange clamping claw (256) is rotatably installed at the inner end of the flange clamping turntable (254). The output shaft of the flange clamping cylinder (255) is rotatably connected to the outer end of the flange clamping claw (256).

3. The heat treatment station fixture for automotive chassis components according to claim 2, characterized in that: The end tooling assembly (30) includes an end tooling plate (31), an end vertical tilting platform (32), a pressing vertical plate (33), a pressing element (34), a locking element (35), and a floating element (36). The bottom of the end tooling plate (31) is installed on the top of the end lifting frame (11). The bottom of the end vertical tilting platform (32) is installed in the middle of the top surface of the end tooling plate (31). The bottom of the pressing vertical plate (33) is installed in the middle of the inner side of the top surface of the end tooling plate (31). Vertical slide rails (331) are respectively provided at both ends of the inner side of the pressing vertical plate (33). The pressing element (34) is installed on the top of the pressing vertical plate (33). The locking element (35) is installed on the bottom of the pressing vertical plate (33). The floating element (36) is installed in the end tooling plate (31).

4. The heat treatment station fixture for automotive chassis components according to claim 3, characterized in that: The vertical tilting platform (32) at the end has a limit guide block (321) protruding at both ends of the inner side, a pre-set passage groove (322) recessed in the middle of one side of the vertical tilting platform (32), and a pull-back mounting block (323) and a push mounting platform (324) provided in the middle of the outer side of the vertical tilting platform (32).

5. The heat treatment station fixture for automotive chassis components according to claim 4, characterized in that: A vertical sliding column platform (330) is provided on the top inner side of the pressing vertical plate (33), a vertical cylinder platform (332) is provided at the bottom outer end of the inner side of the pressing vertical plate (33), a locking and mounting turntable (333) is provided on the bottom inner side of the pressing vertical plate (33), a vertical strip groove (334) is recessed in the locking and mounting turntable (333), and a floating sliding shaft (335) is slidably provided in the vertical strip groove (334).

6. The heat treatment station fixture for automotive chassis components according to claim 5, characterized in that: The pressing element (34) includes a pressing frame-shaped slide (341), a pressing sector-shaped plate (342), a pressing drive cylinder (343), and a pressing slide rod (344). The inner ends of the pressing frame-shaped slide (341) are slidably installed in two vertical slide rails (331). A synchronous sliding vertical plate (346) is provided in the middle of the inner side of the pressing frame-shaped slide (341). A locking groove (347) is recessed at the bottom of the outer side of the synchronous sliding vertical plate (346). A floating abutment block (348) is provided at the bottom of the inner end of the synchronous sliding vertical plate (346). The pressing sector plate (342) is installed on the outside of the pressing frame slide (341), the bottom of the pressing drive cylinder (343) is installed in the vertical cylinder platform (332), the top of the pressing slide rod (344) is slidably installed in the vertical slide column platform (330), the bottom of the pressing slide rod (344) is provided with a pressing elastic buffer (345), the bottom of the pressing elastic buffer (345) is connected to the pressing frame slide (341), and the top of the pressing elastic buffer (345) is connected to the output shaft of the pressing drive cylinder (343).

7. The heat treatment station fixture for automotive chassis components according to claim 6, characterized in that: The locking element (35) includes a floating hook (351), a locking adjustment cylinder (352), and a locking restraining spring (353). The bottom of the floating hook (351) is installed in the floating slide shaft (335), and the top of the floating hook (351) is locked and connected to the locking groove (347). The locking adjustment cylinder (352) is installed in the push mounting platform (324), and the output shaft of the locking adjustment cylinder (352) abuts against the middle of the floating hook (351). One end of the locking restraining spring (353) is connected to the pull-back mounting block (323), and the other end of the locking restraining spring (353) is connected to the floating hook (351).

8. The heat treatment station fixture for automotive chassis components according to claim 7, characterized in that: The floating element (36) includes a floating press (361) and a floating pressing plate (362). The bottom of the floating press (361) is installed on the inner end of the top surface of the end tooling plate (31). One end of the floating pressing plate (362) is installed on the output shaft of the floating press (361). The other end of the floating pressing plate (362) is provided with a pressing roller (363). The pressing roller (363) abuts against the inner side of the top surface of the floating support block (348).

9. A heat treatment anti-detachment device, characterized in that: The system includes an anti-detachment frame (40), multiple first bottom tilting cylinders (41), multiple second bottom tilting cylinders (42), a material rack base plate (50), multiple first vertical sliding tables (43), multiple second vertical sliding tables (44), an upper transport material rack (60), an anti-detachment element (70), and multiple heat treatment station fixtures for automotive chassis parts as described in claims 1-8. Multiple first bottom tilting cylinders (41) are spaced apart along the length direction on the outer bottom of the anti-detachment frame (40), and multiple second bottom tilting cylinders (42) are spaced apart along the length direction on the inner bottom of the anti-detachment frame (40). The bottom sides of the material rack base plate (50) are rotatably connected to the output shafts of the multiple first bottom tilting cylinders (41) and the multiple second bottom tilting cylinders (42). Multiple lower transport wheel frames (51) are spaced apart along the length direction on the top of the material rack base plate (50). Multiple lower guide wheels (52) are spaced apart along the width direction on the top of the conveyor frame (51). Multiple first vertical sliding tables (43) are spaced apart along the length direction on the top of the outer side of the anti-detachment frame (40). Multiple second vertical sliding tables (44) are spaced apart along the length direction on the top of the inner side of the anti-detachment frame (40). The top two sides of the upper conveyor frame (60) are rotatably connected to multiple first vertical sliding tables (43) and multiple second vertical sliding tables (44). Multiple upper conveyor frames (61) are spaced apart along the length direction at the bottom of the upper conveyor frame (60). Multiple upper guide wheels (62) are spaced apart along the width direction on the top of the upper conveyor frame (61). Anti-detachment element (70) is installed on the top of the anti-detachment frame (40). Multiple heat treatment station equipment for automotive chassis parts are arrayed and placed between the base plate (50) of the material rack and the upper conveyor frame (60).

10. The heat treatment anti-detachment device according to claim 9, characterized in that: The anti-detachment element (70) includes two anti-detachment mounting shafts (71), four anti-detachment pushers (72), an anti-detachment support frame (73), two lateral support frames (74), and multiple elastic support pieces (75). The two anti-detachment mounting shafts (71) are rotatably mounted on one side of the top two ends of the anti-detachment frame (40). The four anti-detachment pushers (72) are respectively mounted on the top two ends of the two sides of the anti-detachment frame (40). The top two ends of the anti-detachment support frame (73) are respectively connected to the two anti-detachment mounting shafts (71). The two lateral support frames (74) are respectively mounted on both sides of the anti-detachment support frame (73). The bottom sides of the two lateral support frames (74) are respectively provided with longitudinal strips (76) of support pieces. The tops of the multiple elastic support pieces (75) are respectively arrayed in the two lateral support frames (74), and the bottoms of the multiple elastic support pieces (75) respectively abut against the tops of multiple appliance racks (10).

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