Universal feeding clamp for heat treatment flaw detection

Abstract

The invention belongs to the technical field of feeding clamps, and particularly relates to a universal feeding clamp for heat treatment flaw detection. The device comprises a base, two sets of T-shaped grooves are formed in the top of the base, supports and V-shaped seats are slidably connected into the two sets of T-shaped grooves, the supports and the V-shaped seats are in threaded connection with first lead screws, the first lead screws are horizontally arranged in the T-shaped grooves, and first air cylinders used for jacking steering knuckles are installed at the bottom ends of the inner walls of the supports in an embedded mode; the top of the support and the top of the V-shaped seat are used for horizontally placing the steering knuckles, the distance between the support and the V-shaped seat is adjusted through rotation of the first lead screw, the distance between the baffle and the V-shaped seat is adjusted through rotation of the second lead screw, and assembling of the steering knuckles of different sizes, structures and shapes is compatible; and the output ends of the second air cylinders on the two sides in the support get close to the outer wall of the steering knuckle and are used for clamping the steering knuckle and then positioning the steering knuckle in the support, and the self-adaptive adjustment efficiency of the steering knuckle clamp is improved.

Description

Technical Field

[0001] This invention belongs to the field of loading fixture technology, and specifically relates to a general-purpose loading fixture for heat treatment flaw detection. Background Technology

[0002] The steering knuckle is a critical safety component of the automotive chassis system, and its quality directly affects driving safety. During production, the steering knuckle must undergo rigorous heat treatment to ensure its mechanical properties, and immediately after heat treatment, non-destructive testing (such as magnetic particle or ultrasonic testing) is performed to detect surface and internal defects.

[0003] However, due to the highly irregular structure of the steering knuckle, which includes features such as the kingpin hole and journal, and the significant differences in size and angle between steering knuckles of different vehicle models, existing production lines mostly employ a "dedicated fixture" model, meaning that each steering knuckle model corresponds to a set of fixed clamping fixtures. This necessitates machine shutdown for fixture replacement and adjustment during production changes, resulting in significant time consumption and severely hindering flexible production. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a universal loading fixture for heat treatment flaw detection, comprising a base; the top of the base has two sets of T-slots, and a support and a V-shaped seat are slidably connected in each set of T-slots; the support and the V-shaped seat are threadedly connected to a first lead screw, and the first lead screw is horizontally arranged in the T-slot; a first cylinder for lifting the steering knuckle is embedded in the bottom end of the inner wall of the support; a second cylinder for clamping the steering knuckle is embedded in both sides of the inner wall of the support; and an infrared rangefinder for detecting the distance between the steering knuckle and the support is also embedded in the outer wall of the support.

[0005] A baffle is provided on the side of the V-shaped seat away from the support, and two sets of second lead screws are threadedly connected between the baffle and the V-shaped seat, with nuts threadedly connected to the ends of the two sets of second lead screws.

[0006] Furthermore, a flaw detection component is provided at the bottom of the base, and one end of the flaw detection component is slidably connected to the outer wall of the baffle.

[0007] Furthermore, the flaw detection assembly includes a housing; two sets of reserved slots are provided on one side of the top of the housing, and the two sets of reserved slots are sleeved on the end of the first lead screw; an extension seat is slidably connected to the outer wall of the housing on the side away from the two sets of reserved slots; and an assembly slot is provided at the end of the extension seat on the side away from the housing.

[0008] Furthermore, the inner wall of the assembly groove is horizontally slidably connected with two sets of limiting blocks, and one end of each set of limiting blocks is fixedly connected to an extension block. The outer wall of the extension block is provided with two sets of interconnected T-shaped slots. The top of the extension block is provided with an internal threaded hole, and a screw is internally threaded into the internal threaded hole. One end of the screw extends to the top of the extension base. The bottom of the storage housing is fixedly connected with two sets of side plates.

[0009] Furthermore, a storage frame is fixedly connected to the inner wall of the two sets of side plates, and the storage frame is located on the side away from the reserved slot. A cable is provided in the storage frame, one end of the cable is wound around a winding rod, and both ends of the winding rod are rotatably connected to the two sets of side plates. A torsion spring is also provided on the winding rod to drive one end of the cable to be wound around the winding rod at all times.

[0010] Furthermore, a wide-angle camera is fixedly connected to the other end of the cable, and a conveying cylinder is sleeved on the outer wall of the cable and the side closest to the wide-angle camera. A bearing is rotatably connected to the outer wall of the conveying cylinder, and a linkage block is fixedly connected to both sides of the outer wall of the bearing. A third lead screw is threaded onto the linkage block.

[0011] Furthermore, an adjustment cavity is provided on the outer wall of the baffle near the central axis. Limiting grooves are provided on both sides of the adjustment cavity. The inner wall of the limiting groove is slidably fitted to the linkage block, and a first motor for driving the third lead screw to rotate is embedded in the inner wall of the limiting groove.

[0012] Furthermore, a linkage ring is sleeved on the outside of the conveying cylinder, and two sets of linkage rods are rotatably connected to the inner wall of the linkage ring. Conveying wheels are fixedly connected to both sets of linkage rods, and one side of each set of conveying wheels extends to the inner wall of the conveying cylinder. The two sets of conveying wheels are attached to the outer wall of the cable.

[0013] Furthermore, a second motor that drives the linkage rod to rotate is also embedded in the inner wall of the linkage ring. The second motor drives two sets of conveyor wheels to rotate, and the cable between the two sets of conveyor wheels pushes the wide-angle camera to move on the inner wall of the steering knuckle for detecting the processing quality of the inner wall of the steering knuckle.

[0014] Furthermore, two sets of third cylinders are embedded in the outer wall of the conveying cylinder, and the output ends of the two sets of third cylinders are used to position and clamp the outer wall of the cable, so that the linkage ring drives the conveying cylinder during the hand-held rotation, adjusting the position of the cable and the wide-angle camera, thereby expanding the shooting position of the wide-angle camera on the inner wall of the steering knuckle and expanding the flaw detection range.

[0015] The beneficial effects of this invention are:

[0016] 1. The top of the support and V-shaped seat is used to horizontally place the steering knuckle. The rotation of the first lead screw adjusts the distance between the support and the V-shaped seat, and the rotation of the second lead screw adjusts the distance between the baffle and the V-shaped seat. This allows for the assembly of steering knuckles of different sizes, structures and shapes. The output ends of the second cylinders on both sides inside the support move closer to the outer wall of the steering knuckle to clamp and position it inside the support, improving the efficiency of adaptive adjustment of the steering knuckle clamp.

[0017] 2. The expansion base is laterally pulled out from the housing to different positions to provide space for assembling different numbers of expansion blocks. Then, by passing a screw through the internal threaded hole and extending the end of the screw to the top of the expansion base, different numbers of expansion blocks are assembled onto the expansion base in sequence. The assembled expansion blocks can utilize the connection between the expansion slot and the T-slot to allow the V-shaped seat to be adjusted along the expanded T-slot, improving the compatibility with different types of steering knuckle clamps.

[0018] 3. After the side wall of the baffle is in contact with one end of the steering knuckle, rotate the nuts on both ends of the second lead screw to keep the side wall of the baffle in contact with the end of the steering knuckle at all times. While the first motor drives the third lead screw to rotate, adjust the height of the wide-angle camera. When the wide-angle camera moves to a state where it can communicate with the port of the steering knuckle, the second motor drives the conveyor wheel to rotate, so that the cable between the two conveyor wheels is transmitted horizontally. This is used to move the wide-angle camera to different positions on the inner wall of the steering knuckle, thereby increasing the range of flaw detection of the steering knuckle.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the feeding fixture according to an embodiment of the present invention is shown. Figure 1 ;

[0022] Figure 2 A side view of the structure of the feeding fixture according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic diagram of the feeding fixture according to an embodiment of the present invention is shown. Figure 2 ;

[0024] Figure 4 A schematic diagram showing the connection of the support, V-shaped seat, and baffle according to an embodiment of the present invention is provided.

[0025] Figure 5 A schematic diagram of the flaw detection assembly according to an embodiment of the present invention is shown;

[0026] Figure 6 A schematic diagram showing the connection between the baffle and the flaw detection assembly according to an embodiment of the present invention is shown;

[0027] Figure 7 A schematic diagram of the internal structure of the conveying cylinder according to an embodiment of the present invention is shown.

[0028] In the diagram: 1. Base; 2. Support; 3. V-shaped seat; 4. First lead screw; 5. Baffle; 6. Nut; 7. T-slot; 8. First cylinder; 9. Infrared rangefinder; 10. Second cylinder; 11. Flaw detection assembly; 111. Storage housing; 112. Reserved slot; 113. Extension seat; 114. Assembly slot; 115. Limiting block; 116. Extension block; 117. Extension slot; 118. Internal threaded hole ; 119. Side plate; 1110. Storage frame; 1111. Winding rod; 1112. Cable; 1113. Wide-angle camera; 1114. Conveyor cylinder; 1115. Bearing; 1116. Linkage block; 1117. Third lead screw; 1118. Linkage rod; 1119. Conveyor wheel; 1120. Third cylinder; 1121. Linkage ring; 12. Second lead screw; 13. Adjustment chamber; 14. Limiting groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] This invention provides a universal loading fixture for heat treatment flaw detection, including a base 1; for example, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown.

[0031] The top of the base 1 has two sets of T-slots 7, and a support 2 and a V-shaped seat 3 are slidably connected in both sets of T-slots 7. The support 2 and the V-shaped seat 3 are threadedly connected to a first lead screw 4, and the first lead screw 4 is horizontally arranged in the T-slot 7. A first cylinder 8 for lifting the steering knuckle is embedded in the bottom of the inner wall of the support 2. A second cylinder 10 for clamping the steering knuckle is embedded in both sides of the inner wall of the support 2. An infrared rangefinder 9 for detecting the distance between the steering knuckle and the support 2 is also embedded in the outer wall of the support 2.

[0032] A baffle 5 is provided on the side of the V-shaped seat 3 away from the support 2, and two sets of second lead screws 12 are threadedly connected between the baffle 5 and the V-shaped seat 3, and the ends of the two sets of second lead screws 12 are threadedly connected with nuts 6.

[0033] The base 1 is provided with a flaw detection component 11 at its bottom, and one end of the flaw detection component 11 is slidably connected to the outer wall of the baffle 5.

[0034] Specifically, the top of the support 2 and the V-shaped seat 3 are used to horizontally place the steering knuckle. The rotation of the first lead screw 4 is used to adjust the distance between the support 2 and the V-shaped seat 3, and the rotation of the second lead screw 12 is used to adjust the distance between the baffle 5 and the V-shaped seat 3, so as to be compatible with the assembly of steering knuckles of different sizes, structures and shapes. Then, the output ends of the second cylinders 10 on both sides inside the support 2 are used to move closer to the outer wall of the steering knuckle to clamp and position the steering knuckle inside the support 2.

[0035] The flaw detection assembly 11 includes a housing 111; for example, such as Figure 5 , Figure 6 and Figure 7 As shown.

[0036] The top side of the storage housing 111 has two sets of reserved slots 112, which are sleeved on the end of the first lead screw 4. An expansion seat 113 is slidably connected to the outer wall of the storage housing 111 on the side away from the two sets of reserved slots 112. An assembly slot 114 is provided at the end of the expansion seat 113 on the side away from the storage housing 111. Two sets of limiting blocks 115 are horizontally slidably connected to the inner wall of the assembly slot 114. An expansion block 116 is fixedly connected to one end of each of the two sets of limiting blocks 115. An expansion slot 117 with two sets of interconnected T-shaped slots 7 is provided on the outer wall of the expansion block 116. An internal threaded hole 118 is provided at the top of the expansion block 116. A screw is internally threaded into the internal threaded hole 118, with one end of the screw extending to the top of the expansion base 113. Two sets of side plates 119 are fixedly connected to the bottom of the storage housing 111. A storage frame 1110 is fixedly connected to the inner wall of the two sets of side plates 119, and the storage frame 1110 is located on the side away from the reserved slot 112. A cable 1112 is provided inside the storage frame 1110, with one end of the cable 1112 wound around the winding rod 1111. Both ends of the winding rod 1111 are rotatably connected to the two sets of side plates 119. A torsion spring is also provided on the winding rod 1111 to drive one end of the cable 1112 to be constantly wound around the winding rod 1111.

[0037] The other end of the cable 1112 is fixedly connected to a wide-angle camera 1113. A conveying cylinder 1114 is sleeved on the outer wall of the cable 1112 and on the side close to the wide-angle camera 1113. A bearing 1115 is rotatably connected to the outer wall of the conveying cylinder 1114, and a linkage block 1116 is fixedly connected to both sides of the outer wall of the bearing 1115. A third lead screw 1117 is threaded onto the linkage block 1116.

[0038] An adjustment cavity 13 is provided on the outer wall of the baffle 5 near the central axis. Limiting grooves 14 are provided on both sides of the adjustment cavity 13. The inner wall of the limiting groove 14 is slidably attached to the linkage block 1116. A first motor for driving the third lead screw 1117 to rotate is embedded in the inner wall of the limiting groove 14.

[0039] A linkage ring 1121 is sleeved around the outside of the conveying cylinder 1114. Two sets of linkage rods 1118 are rotatably connected to the inner wall of the linkage ring 1121. Conveying wheels 1119 are fixedly connected to each of the two sets of linkage rods 1118, and one side of each set of conveying wheels 1119 extends to the inner wall of the conveying cylinder 1114. The two sets of conveying wheels 1119 are then attached to the outer wall of the cable 1112. A second motor that drives the linkage rods 1118 to rotate is also embedded in the inner wall of the linkage ring 1121. The second motor drives the two sets of conveying wheels 1119 to rotate, causing the two sets of conveying wheels 1119 to rotate. The cable 1112 between 119 pushes the wide-angle camera 1113 to move on the inner wall of the steering knuckle to detect the processing quality of the inner wall of the steering knuckle. The outer wall of the conveying cylinder 1114 is also embedded with two sets of third cylinders 1120, and the output ends of the two sets of third cylinders 1120 are used to position and clamp the outer wall of the cable 1112. When the linkage ring 1121 is rotated by hand, it drives the conveying cylinder 1114 to adjust the position of the cable 1112 and the wide-angle camera 1113, so as to expand the shooting position of the wide-angle camera 1113 on the inner wall of the steering knuckle and expand the flaw detection range.

[0040] Specifically, the expansion base 113 is laterally pulled out from the housing 111 to different positions to provide space for assembling different numbers of expansion blocks 116. Then, by passing a screw through the internal threaded hole 118 and extending the end of the screw to the top of the expansion base 113, different numbers of expansion blocks 116 are sequentially assembled on the expansion base 113. The assembled expansion blocks 116 can utilize the communication between the expansion groove 117 and the T-slot 7 to allow the V-shaped seat 3 to be adjusted along the expanded T-slot 7.

[0041] After one side wall of the baffle 5 comes into contact with one end of the steering knuckle, the nuts 6 on both ends of the second lead screw 12 are rotated so that one side wall of the baffle 5 is always in contact with the end of the steering knuckle. While the first motor drives the third lead screw 1117 to rotate, the height of the wide-angle camera 1113 is adjusted. When the wide-angle camera 1113 moves to a state where it can communicate with the port of the steering knuckle, the second motor drives the conveyor wheel 1119 to rotate, so that the cable 1112 between the two conveyor wheels 1119 is horizontally transmitted to move the wide-angle camera 1113 to different positions on the inner wall of the steering knuckle.

[0042] The working principle of the universal loading fixture for heat treatment flaw detection proposed in this embodiment of the invention is as follows:

[0043] The top of the support 2 and the V-shaped seat 3 are used to place the steering knuckle horizontally. The rotation of the first lead screw 4 is used to adjust the distance between the support 2 and the V-shaped seat 3, and the rotation of the second lead screw 12 is used to adjust the distance between the baffle 5 and the V-shaped seat 3. This allows for the assembly of steering knuckles of different sizes, structures and shapes. The output ends of the second cylinders 10 on both sides inside the support 2 are used to move towards the outer wall of the steering knuckle to clamp and position the steering knuckle inside the support 2.

[0044] The expansion base 113 is laterally pulled out from the housing 111 to different positions to provide space for assembling different numbers of expansion blocks 116. Then, by passing a screw through the internal threaded hole 118 and extending the end of the screw to the top of the expansion base 113, different numbers of expansion blocks 116 are sequentially assembled on the expansion base 113. The assembled expansion blocks 116 can utilize the communication between the expansion groove 117 and the T-slot 7 to allow the V-shaped seat 3 to be adjusted along the expanded T-slot 7.

[0045] After the side wall of the baffle 5 comes into contact with one end of the steering knuckle, the nuts 6 on both ends of the second lead screw 12 are rotated so that the side wall of the baffle 5 is always in contact with the end of the steering knuckle. While the first motor drives the third lead screw 1117 to rotate, the height of the wide-angle camera 1113 is adjusted. When the wide-angle camera 1113 moves to a state where it can communicate with the port of the steering knuckle, the second motor drives the conveyor wheel 1119 to rotate, so that the cable 1112 between the two conveyor wheels 1119 is horizontally transmitted to move the wide-angle camera 1113 to different positions on the inner wall of the steering knuckle.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A universal loading fixture for heat treatment flaw detection, characterized in that: Includes a base (1); the top of the base (1) is provided with two sets of T-slots (7), and a support (2) and a V-shaped seat (3) are slidably connected in both sets of T-slots (7). The support (2) and the V-shaped seat (3) are threadedly connected with a first screw (4), and the first screw (4) is horizontally set in the T-slot (7). A first cylinder (8) for lifting the steering knuckle is embedded at the bottom of the inner wall of the support (2). A second cylinder (10) for clamping the steering knuckle is embedded on both sides of the inner wall of the support (2). An infrared rangefinder (9) for detecting the distance between the steering knuckle and the support (2) is also embedded on the outer wall of the support (2). A baffle (5) is provided on the side of the V-shaped seat (3) away from the support (2), and two sets of second screws (12) are threadedly connected between the baffle (5) and the V-shaped seat (3), and the ends of the two sets of second screws (12) are threadedly connected with nuts (6).

2. The universal loading fixture for heat treatment flaw detection according to claim 1, characterized in that: The base (1) is provided with a flaw detection component (11) at its bottom, and one end of the flaw detection component (11) is slidably connected to the outer wall of the baffle (5).

3. The universal loading fixture for heat treatment flaw detection according to claim 2, characterized in that: The flaw detection assembly (11) includes a housing (111); two sets of reserved slots (112) are provided on one side of the top of the housing (111), and the two sets of reserved slots (112) are sleeved on the end of the first lead screw (4). An extension seat (113) is slidably connected to the outer wall of the housing (111) on the side away from the two sets of reserved slots (112), and an assembly slot (114) is provided at the end of the extension seat (113) on the side away from the housing (111).

4. The universal loading fixture for heat treatment flaw detection according to claim 3, characterized in that: The inner wall of the assembly slot (114) is horizontally slidably connected with two sets of limiting blocks (115). One end of each of the two sets of limiting blocks (115) is fixedly connected with an extension block (116). The outer wall of the extension block (116) is provided with two sets of T-shaped slots (7) that are interconnected to form an expansion slot (117). The top of the extension block (116) is provided with an internal threaded hole (118), and a screw is internally threaded into the internal threaded hole (118). One end of the screw extends to the top of the expansion seat (113). The bottom of the storage housing (111) is fixedly connected with two sets of side plates (119).

5. The universal loading fixture for heat treatment flaw detection according to claim 4, characterized in that: The inner walls of the two sets of side plates (119) are fixedly connected to a storage frame (1110), and the storage frame (1110) is located on the side away from the reserved slot (112). A cable (1112) is provided in the storage frame (1110). One end of the cable (1112) is wound around a winding rod (1111), and both ends of the winding rod (1111) are rotatably connected to the two sets of side plates (119). A torsion spring is also provided on the winding rod (1111) to drive one end of the cable (1112) to be wound around the winding rod (1111) at all times.

6. The universal loading fixture for heat treatment flaw detection according to claim 5, characterized in that: The other end of the cable (1112) is fixedly connected to a wide-angle camera (1113). A conveying cylinder (1114) is sleeved on the outer wall of the cable (1112) and on the side close to the wide-angle camera (1113). A bearing (1115) is rotatably connected to the outer wall of the conveying cylinder (1114), and a linkage block (1116) is fixedly connected to both sides of the outer wall of the bearing (1115). A third lead screw (1117) is threaded onto the linkage block (1116).

7. The universal loading fixture for heat treatment flaw detection according to claim 1, characterized in that: An adjustment cavity (13) is provided on the outer wall of the baffle (5) near the central axis. Limiting grooves (14) are provided on both sides of the adjustment cavity (13). The inner wall of the limiting groove (14) is slidably connected to the linkage block (1116). A first motor for driving the third lead screw (1117) to rotate is embedded in the inner wall of the limiting groove (14).

8. The universal loading fixture for heat treatment flaw detection according to claim 6, characterized in that: The conveying cylinder (1114) is sleeved with a linkage ring (1121). The inner wall of the linkage ring (1121) is rotatably connected with two sets of linkage rods (1118). Each of the two sets of linkage rods (1118) is fixedly connected with a conveying wheel (1119). One side of each of the two sets of conveying wheels (1119) extends to the inner wall of the conveying cylinder (1114). The two sets of conveying wheels (1119) are attached to the outer wall of the cable (1112).

9. The universal loading fixture for heat treatment flaw detection according to claim 8, characterized in that: The inner wall of the linkage ring (1121) is also embedded with a second motor that drives the linkage rod (1118) to rotate. The second motor drives the two sets of conveyor wheels (1119) to rotate, so that the cable (1112) between the two sets of conveyor wheels (1119) pushes the wide-angle camera (1113) to move on the inner wall of the steering knuckle for detecting the processing quality of the inner wall of the steering knuckle.

10. The universal loading fixture for heat treatment flaw detection according to claim 9, characterized in that: The outer wall of the conveying cylinder (1114) is also embedded with two sets of third cylinders (1120), and the output ends of the two sets of third cylinders (1120) are used to position and clamp the outer wall of the cable (1112), so that the linkage ring (1121) drives the conveying cylinder (1114) during the hand grip rotation, and adjusts the position of the cable (1112) and the wide-angle camera (1113) to expand the shooting position of the wide-angle camera (1113) on the inner wall of the steering knuckle and expand the flaw detection range.

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