A wet brake axle housing positioning device and method

Abstract

The application provides a positioning device and method for wet brake axle housing, which comprises a die seat mechanism, the die seat mechanism comprises a vertically fixed base and a mounting seat, the base is provided with a correction mechanism, the correction mechanism comprises a base fixed on the base, the base is slidably connected with a product centering base for supporting the wet brake axle housing and a V-shaped centering plate, the mounting seat is fixedly provided with a positioning mechanism for positioning the shaft head connecting part of the wet brake axle housing, the positioning device of the application is positioned by the positioning mechanism and the shaft head connecting part, and the V-shaped centering block is matched with the V-shaped structure on the axle housing connecting part, so as to realize the positioning and fixing of the wet brake axle housing. The positioning device realizes the rapid feeding and discharging, rapid centering and positioning of the wet brake axle housing, and there is no knocking during clamping, so that the positioning accuracy is greatly improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This invention relates to a processing and positioning device for wet brake axle housings, specifically to a positioning device and method for wet brake axle housings. Background Technology

[0002] As an important component of the vehicle drive system, the wet brake axle housing has the following structure: Figure 7 As shown, the axle head connection part 11 is cylindrical for axle head connection, ensuring that the axle head is coaxial with the center of the axle housing, and then coincides with the center of the axle housing after connection with the axle housing. A brake connection part 12 is provided in the middle of the axle head connection part 11 for connection with the brake. Axle housing connection part 13 is provided at the rear end of the axle head connection part 11 for connection with the axle housing, ensuring that the center of the entire axle housing coincides with the center of the axle housing after connection with the axle housing. One end forms a V-shaped structure, and the axial pin holes on it are symmetrically arranged with the central axis of the V-shaped structure as the reference.

[0003] During the manufacturing process of wet brake axle housings, a housing blank (such as...) is first made. Figure 8 As shown), it is then further processed. The end of the shaft head connecting part 11 needs to be machined with countersunk hole 111 and its hole end face. The outer periphery of the brake connecting part 12 and the bridge connecting part 13 needs to be machined with pin hole 121. The end face of the bridge connecting part 13 also needs to be further ground and processed into a shape that meets the requirements.

[0004] Since subsequent drilling and end-face machining require fixing the axle housing blank before further processing, and due to the irregular shape of the blank, a vertical machining center is currently used for fixing. This involves placing the blank vertically and using two sets of molds to clamp and position its upper and lower ends. When machining the shaft head connection 11, brake connection 12, and axle housing connection 13, the clamping position of the molds needs to be adjusted. This means that it is impossible to complete the machining of these parts in a single setup. Position, dimensions, and machining accuracy are significantly affected by secondary clamping and mold tolerances, increasing the number of lifting operations. Furthermore, multiple clamping operations pose a risk of impact, and the process suffers from low clamping efficiency and low equipment utilization. Summary of the Invention

[0005] The purpose of this invention is to provide a positioning device for a wet brake axle housing, which avoids bumping the product during the clamping process, enables rapid centering of the product's posture, and reduces labor intensity.

[0006] The specific technical solution of the present invention is as follows:

[0007] A positioning device for a wet brake axle housing includes a mold base mechanism, the mold base mechanism including a vertically fixed base and a mounting base, the base being provided with a correction mechanism, the correction mechanism including a base fixed on the base, and a product centering base and a V-shaped centering plate slidably connected on the base for supporting the wet brake axle housing.

[0008] The mounting base is fixedly equipped with a positioning mechanism for positioning the axle head connection of the wet brake axle housing.

[0009] In a further embodiment, a clamping mechanism for clamping the wet brake axle housing is fixed on the mounting base located on the outer periphery of the positioning mechanism.

[0010] In a further embodiment, the clamping mechanism includes a pressure plate, one end of which is mounted on the mounting base via a push rod, and the other end is threaded onto the mounting base via a double-ended bolt; a pressure plate spring is fitted onto the double-ended bolt located between the pressure plate and the mounting base.

[0011] Preferably, the pressure plate has a waist-shaped hole, and the top of the double-headed bolt passes through the waist-shaped hole and is fixed with a shoulder nut.

[0012] In a further embodiment, both the correction mechanism and the positioning mechanism are provided in two sets. A counter-tensioning mechanism for clamping the wet brake axle housing is fixed on the mounting base between the two positioning mechanisms, and a pressing mechanism is fixed on the mounting base around the two positioning mechanisms.

[0013] In a further embodiment, the anti-tensioning mechanism includes a double-point pressure plate, with a anti-tension bolt threadedly connected to the middle of the double-point pressure plate. The bottom end of the anti-tension bolt passes through the mounting base and is fixedly connected to the fixing head. Rotating the fixing head causes the anti-tension bolt to move the double-point pressure plate vertically to achieve tightening or loosening. A anti-tension spring is fitted on the anti-tension bolt located between the mounting base and the double-point pressure plate.

[0014] In a further embodiment, the positioning mechanism includes an upper positioning ring and a lower positioning ring fixed together. The outer periphery of the upper and lower positioning rings is stepped, and a product positioning hole is opened in the center. The outer periphery of the upper positioning ring is fixedly mounted on the mounting base by fixing bolts.

[0015] In a further embodiment, the mounting base is provided with mounting holes, and the inner wall of the mounting holes is provided with fixing reference grooves and positioning grooves that match the outer periphery of the upper positioning ring and the lower positioning ring.

[0016] In a further embodiment, lifting rings are fixed around the base.

[0017] In a further embodiment, a guide rail is fixedly mounted on the base, and a slider is slidably connected to the guide rail; a stop block is fixedly mounted at the end of the guide rail.

[0018] The bottom end of the product centering base is fixedly connected to the slider via a transition plate; the V-shaped centering plate is connected to the transition plate via a connecting plate.

[0019] In a further embodiment, the top surface of the product centering base is an arc-shaped centering surface that matches the wet brake axle housing;

[0020] One end of the connecting plate is fixedly connected to the transition plate, and the other end is built into the hollow cavity of the V-shaped centering plate and connected to a guide rod. Both ends of the guide rod are fixedly connected to the V-shaped centering plate, and the middle part of the guide rod is movably connected to the connecting plate. A return spring is sleeved on the guide rod located above the connecting plate. The top surface of the V-shaped centering plate is a V-shaped groove that matches the V-shaped structure on the wet brake axle housing axle package connection part.

[0021] In this positioning device, the mold base mechanism serves as the mounting base for related mechanisms, and the lifting rings are the lifting points used to lift the positioning device. It also enables the positioning connection between this positioning device and the wet brake axle housing processing equipment.

[0022] The main function of the positioning mechanism in this positioning device is to position the shaft end connection of the wet brake axle housing. It achieves the positioning of the wet brake axle housing on the positioning device by cooperating with the product positioning hole and product positioning surface with the positioning outer circle 112 and positioning reference surface 122 used for processing the wet brake axle housing.

[0023] The main function of the calibration mechanism is to achieve rapid positioning and automatic posture correction of the wet brake axle housing. It primarily utilizes the arc-shaped centering surface on the product's centering base for coarse centering of the product, and uses the V-groove on the V-shaped centering plate to match and position the V-shaped structure on the axle housing connection, achieving vertical centering. Once the V-shaped centering plate contacts the product's V-shaped structure, under gravity, it moves downwards along the connecting plate via a guide rod, compressing the return spring. The return spring's elasticity ensures that the V-shaped centering plate and the wet brake axle housing remain in contact. When the product is moved, the return spring returns the V-shaped centering plate to its initial position. The slider then moves the product's centering base and the V-shaped centering plate together towards the positioning mechanism. The front end of the wet brake axle housing's shaft connection enters the product positioning hole of the positioning mechanism, achieving rapid product positioning and ensuring linear motion during insertion.

[0024] The function of the clamping mechanism is to clamp the wet brake axle housing product, ensuring its position remains unchanged during processing. Rotating the shoulder nut causes one end of the pressure plate to move up or down, while the other end is supported by a push rod, keeping its height constant. This allows force to be transmitted downwards, pressing one end of the pressure plate onto the wet brake axle housing product. The pressure plate spring's main function is to lift the pressure plate when the shoulder nut is released, thus separating the pressure plate from the pressed workpiece (wet brake axle housing product).

[0025] The reverse tension clamping mechanism can simultaneously clamp two symmetrically arranged wet brake axle housings, ensuring the product position remains unchanged during processing. Its application scenario is when a clamping mechanism cannot be placed on one side of the positioning device; in this case, the reverse tension clamping mechanism is placed on the opposite side of the mounting base to provide operating space for the wrench during the clamping process. Specifically, a wrench is used on the opposite side of the mounting base to clamp the fixing head and rotate the reverse tension bolt, thereby causing the two ends of the double-point pressure plate to clamp or loosen the two wet brake axle housings respectively. The main function of the reverse tension spring is to lift the double-point pressure plate when it is loosened, causing the double-point pressure plate to disengage from the pressed workpiece (wet brake axle housing).

[0026] The positioning device of the present invention uses a positioning mechanism to cooperate with the shaft head connection part of the wet brake axle housing for positioning, and uses a V-shaped centering block to cooperate with the V-shaped structure on the axle housing connection part of the wet brake axle housing for centering. Then, the product is pressed by a pressing mechanism and a reverse tensioning mechanism, thereby achieving the positioning and fixing of the wet brake axle housing.

[0027] Therefore, this positioning device greatly improves positioning accuracy and reduces labor intensity by enabling rapid loading and unloading, rapid positioning, and rapid centering based on product posture of wet brake axle housings. Furthermore, the positioning process is rapid and collision-free, and its positioning and disassembly are quick and convenient.

[0028] In addition, this positioning device can clamp two wet brake axle housing products at once, reducing downtime and downtime, and improving equipment utilization and product clamping efficiency.

[0029] Another objective of this invention is to provide a method for positioning a wet brake axle housing using the aforementioned positioning device, comprising the following steps:

[0030] S1. First, install the positioning device on the machine tool of the processing equipment; then place the axle housing blank of the wet brake axle housing to be processed on the product centering base and V-shaped centering plate on the correction mechanism, and make their contact surfaces match.

[0031] S2. Push the correction mechanism to align and position the axle head connection of the wet brake axle housing with the positioning mechanism;

[0032] S3. After fixing the wet brake axle housing, machine the end faces, countersunk holes, and pin holes at both ends.

[0033] S4. After processing, pull the correction mechanism outward to separate it from the positioning mechanism, and then remove the wet brake axle housing.

[0034] Specifically, the steps in step S1 are as follows:

[0035] The centering outer circle and V-shaped structure on the wet brake axle housing are brought into contact with the arc-shaped centering surface of the product centering base 234 and the V-shaped groove of the V-shaped centering plate, respectively. Since the V-shaped structure is symmetrical and matches the structure of the V-shaped groove of the V-shaped centering plate, under the action of gravity, its center position will automatically correct itself and adapt to the V-shaped groove, achieving vertical centering. Furthermore, when the V-shaped structure on the wet brake axle housing contacts the V-shaped centering plate, under the action of gravity, the V-shaped centering plate will move downwards as a whole in the connecting plate via the guide rod and compress the return spring. Thus, under the elastic force of the return spring, the V-shaped centering plate and the wet brake axle housing are always kept in contact.

[0036] In step S2, the correction mechanism is pushed, and the slider moves the product centering base and V-shaped centering plate together toward the positioning mechanism. The shaft end connection of the wet brake axle housing enters the product positioning hole of the positioning mechanism. The product positioning hole and product positioning surface on the positioning mechanism cooperate with the positioning outer circle and positioning reference surface on the wet brake axle housing, thereby positioning the shaft end connection on the positioning mechanism and extending it out of the opposite side of the mounting seat (to facilitate the processing equipment to grind, cut and countersink its end face in one go), thus realizing the positioning of the wet brake axle housing.

[0037] In step S3, fixing refers to fixing using a clamping mechanism and a counter-tensioning mechanism. After pushing the two wet brake axle housings into their respective positioning mechanisms, the clamping mechanism on its outer periphery is adjusted so that its movable end is above the clamping surface of the brake connection part of the wet brake axle housing. The shoulder nut is then tightened, causing the movable end of the pressure plate to move downward, thereby clamping the brake connection part. At the same time, the counter-tensioning mechanism located in the middle position is adjusted so that both ends of the double-point pressure plate are above the clamping surface of the brake connection part of the two wet brake axle housings. A wrench is used to clamp the fixing head and rotate the counter-tensioning bolt on the back of the mounting base, thereby causing both ends of the double-point pressure plate to clamp the two wet brake axle housings respectively. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention.

[0039] Figure 2 This is a schematic diagram of the mold base mechanism in this invention.

[0040] Figure 3This is a schematic diagram of the positioning mechanism in this invention.

[0041] Figure 4 This is a schematic diagram of the correction mechanism in this invention.

[0042] Figure 5 This is a schematic diagram of the clamping mechanism in this invention.

[0043] Figure 6 This is a schematic diagram of the anti-pull clamping mechanism in this invention.

[0044] Figure 7 This is a structural schematic diagram of a wet brake axle housing.

[0045] Figure 8 This is a structural schematic diagram of the axle housing blank for a wet brake axle housing.

[0046] Figure 9 This is a schematic diagram of the positioning device and wet brake axle housing assembly of the present invention.

[0047] Number in the diagram:

[0048] Wet brake axle housing 1:

[0049] Shaft head connection 11, countersunk hole 111, positioning outer circle 112, brake connection 12, pin hole 121, positioning reference surface 122, clamping surface 123, centering outer circle 124, bridge connection 13, V-shaped structure 131;

[0050] Positioning device 2:

[0051] Mold base mechanism 21, mounting base 211, fixed reference groove 2111, positioning groove 2112, mounting hole 2113, lifting ring 212, base 213;

[0052] Positioning mechanism 22, upper positioning ring 221, fixing bolt 222, product positioning hole 2211, product positioning surface 2212, upper positioning ring positioning surface 2213, lower positioning ring 223;

[0053] Correction mechanism 23, base 231, guide rail 232, V-shaped centering plate 233, V-shaped groove 2331, connecting plate 2332, product centering base 234, arc-shaped centering surface 2341, transition plate 235, slider 236, stop block 237, return spring 238, guide rod 239;

[0054] Clamping mechanism 24, pressure plate 241, push rod 242, pressure plate spring 243, shoulder nut 244, double-ended bolt 245;

[0055] 25. Reverse tensioning mechanism, 251. Double-point pressure plate, 252. Fixed head, 253. Reverse tension bolt, 254. Detailed Implementation

[0056] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0057] Example 1:

[0058] like Figure 1-6 As shown, a positioning device for a wet brake axle housing includes a mold base mechanism 21. The mold base mechanism 21 includes a vertically fixed base 213 and a mounting base 211. The base 213 is provided with a correction mechanism 23. The correction mechanism 23 includes a base 231 fixed on the base 213. The base 231 is slidably connected with a product centering base 234 and a V-shaped centering plate 233 for supporting the wet brake axle housing 1.

[0059] The mounting base 211 is fixedly mounted with a positioning mechanism 22 for positioning the shaft head connection part 11 of the wet brake axle housing 1.

[0060] The structure of the wet brake axle housing 1 is as follows: Figure 7 , 8 As shown, it includes a cylindrical shaft head connecting part 11, a brake connecting part 12, and a bridge connecting part 13. During clamping and positioning, the positioning outer circle 112 on the shaft head connecting part 11 and the positioning reference surface 122 on the brake connecting part 12 cooperate with the positioning mechanism 22, and their pressing surface 123 is a pressing surface used to contact the pressing mechanism 24 and the reverse tension pressing mechanism 25; the centering outer circle 124 and the V-shaped structure 131 are respectively fitted and connected to the product centering base 234 and the V-shaped centering plate 233.

[0061] When using, such as Figure 9 As shown, the wet brake axle housing 1 to be processed is first placed on the product centering base 234 and V-shaped centering plate 233 on the calibration mechanism 23, and the centering outer circle 112 and V-shaped structure 131 of the wet brake axle housing 1 are brought into contact with the end faces of the product centering base 234 and V-shaped centering plate 233, respectively. Thus, the wet brake axle housing 1 is quickly centered and positioned by its posture, without the need for manual adjustment or calibration, which improves the accuracy of positioning and work efficiency. Then, the calibration mechanism 23 is pushed so that the shaft head connection part 11 of the wet brake axle housing is docked and positioned with the positioning mechanism 22. Finally, after the wet brake axle housing is fixed, the countersunk hole 111, the pin hole 121 and the finish machining of its two end faces can be processed.

[0062] In order to improve the stability of the wet brake axle housing 1 during the processing, a clamping mechanism 24 for clamping the wet brake axle housing 1 is fixed on the mounting base 211 located on the outer periphery of the positioning mechanism 22.

[0063] like Figure 5 As shown, the clamping mechanism 24 includes a pressure plate 241. One end of the pressure plate 241 is mounted on the mounting base 211 via a push rod 242, and the other end is threaded onto the mounting base 211 via a double-ended bolt 245. A pressure plate spring 243 is sleeved on the double-ended bolt 245 located between the pressure plate 241 and the mounting base 211.

[0064] In this embodiment, the pressure plate 241 has a slotted hole, and the top end of the double-ended bolt 245 passes through the slotted hole and is fixed with a shoulder nut 244. That is, the position of the double-ended bolt 245 on the pressure plate 241 is adjustable, thus avoiding the wet brake axle housing 1 when rotating the shoulder nut 244, facilitating its rotation operation. The top end of the push rod 242 is fixedly mounted on the pressure plate 241, and its bottom end is mounted on the mounting base 211 by a nut. Before tightening, the shoulder nut is loosened to separate the double-ended bolt 245 from the mounting base 211, and the nut at the bottom end of the push rod 242 is loosened to allow the pressure plate to rotate. Then, the pressure plate is rotated to avoid the installation space of the wet brake axle housing 1. After the shaft end connection 11 of the wet brake axle housing 1 aligns with the positioning mechanism 22, the pressure plate is rotated so that the movable end of the pressure plate is above the pressing surface 123 of the wet brake axle housing 1. The double-ended bolt 245 is first fixedly connected to the mounting base, and then the shoulder nut is tightened, causing the movable end of the pressure plate to move downwards. Its other end is supported by a push rod to keep its height constant. This allows the movable end of the pressure plate to press against the wet brake axle housing product. When the shoulder nut is loosened, the pressure plate spring 254 will lift the pressure plate 241, thus separating the pressure plate from the wet brake axle housing product.

[0065] Another embodiment: Both the correction mechanism 23 and the positioning mechanism 22 are provided in two sets. A counter-tensioning mechanism 25 for clamping the wet brake axle housing 1 is fixed on the mounting seat 211 between the two positioning mechanisms 22. A pressing mechanism 24 is fixed on the mounting seat 211 on the outer periphery of the two positioning mechanisms 22.

[0066] The clamping mechanism 24 is the same as above, and the anti-tensioning mechanism 25 is as follows. Figure 6 As shown, it includes a double-point pressure plate 251, with a pull-back bolt 253 threadedly connected to the middle of the double-point pressure plate 251. The bottom end of the pull-back bolt 253 passes through the mounting base 211 and is fixedly connected to the fixing head 252. Rotating the fixing head 252 causes the pull-back bolt 253 to drive the double-point pressure plate 251 to move vertically to achieve pressing or loosening. A pull-back spring 254 is sleeved on the pull-back bolt 253 located between the mounting base 211 and the double-point pressure plate 251.

[0067] When clamping two symmetrically arranged wet brake axle housings, to ensure the product position remains unchanged during processing, and due to space constraints, it is inconvenient to arrange the clamping mechanism 24 between the two positioning mechanisms, the reverse clamping mechanism 25 can be placed on the opposite side of the mounting base 211. Rotation is performed on the opposite side of the mounting base 211, thus providing operable space. Specifically, a wrench is used to clamp the fixing head 252 on the opposite side of the mounting base 211 to rotate the reverse bolt 253, thereby driving the two ends of the double-point pressure plate 251 to clamp or loosen the two wet brake axle housings 1 respectively. When the double-point pressure plate 251 is loosened, the force of the reverse spring 254 lifts the double-point pressure plate, causing it to disengage from the wet brake axle housing product.

[0068] Another structure has a square nut (not shown in the figure) clamped on the top surface of the double-point pressure plate 251, and the top of the pull bolt 253 passes through the double-point pressure plate 251 and is threadedly connected to the square nut.

[0069] like Figure 3 As shown, the positioning mechanism 22 includes an upper positioning ring 221 and a lower positioning ring 223 fixed together. The outer periphery of the upper positioning ring 221 and the lower positioning ring 223 are stepped, and a product positioning hole 2211 is opened in the center. The outer periphery of the upper positioning ring 221 is fixedly installed on the mounting base 211 by fixing bolts 222.

[0070] Similarly, as Figure 2 As shown, the mounting base 211 has a mounting hole 2113, and the inner wall of the mounting hole 2113 has a fixing reference groove 2111 and a positioning groove 2112 that match the outer periphery of the upper positioning ring 221 and the lower positioning ring 223.

[0071] During installation, the positioning mechanism 22 is positioned and installed on the mounting base 211 by the outer periphery of the lower positioning ring 223, the positioning surface 2213 of the upper positioning ring, and the fixing reference groove 2111 and positioning groove 2112 on the mounting base 211. Then, it is fixed to the mounting base 211 by fixing bolts 222.

[0072] When docking and positioning with the wet brake axle housing 1, the positioning mechanism 22 uses the product positioning hole 2211 and product positioning surface 2212 on the positioning mechanism 22 to cooperate with the positioning outer circle 112 and positioning reference surface 122 on the wet brake axle housing 1, thereby realizing the positioning of the wet brake axle housing 1 on the positioning device.

[0073] like Figure 4 As shown, a guide rail 232 is fixed on the base 231, and a slider 236 is slidably connected on the guide rail 232; a stop block 237 is fixed at the end of the guide rail 232 to prevent the slider 236 from disengaging from the guide rail 232.

[0074] The bottom end of the product centering base 234 is fixedly connected to the slider 236 through the transition plate 235; the top surface of the product centering base 234 is an arc-shaped centering surface 2341 that matches the wet brake axle housing 1.

[0075] The V-shaped centering plate 233 is connected to the transition plate 235 via a connecting plate 2332. One end of the connecting plate 2332 is fixedly connected to the transition plate 235, and the other end is built into the hollow cavity of the V-shaped centering plate 233 and connected to a guide rod 239. Both ends of the guide rod 239 are fixedly connected to the V-shaped centering plate 233, and the middle part of the guide rod is movably connected to the connecting plate 2332. That is, the V-shaped centering plate 233 and the connecting plate 2332 are movably connected, while the connecting plate 2332 is fixed, so the V-shaped centering plate 233 as a whole can move up and down. A return spring 238 is sleeved on the guide rod 239 located above the connecting plate 2332. The top surface of the V-shaped centering plate 233 is a V-groove 2331 that matches the V-shaped structure 131 on the axle housing connection part 13 in the wet brake axle housing 1.

[0076] When the wet brake axle housing 1 is placed on the alignment mechanism 23, the arc-shaped centering surface 2341 on the product centering base 234 is used to coarsely position the center of the wet brake axle housing 1. Then, the V-shaped groove 2331 on the V-shaped centering plate 233 is used to match and position the V-shaped structure 131 on the axle housing connecting part 13 of the wet brake axle housing to achieve vertical centering. After the V-shaped centering plate 233 contacts the V-shaped structure 131 on the wet brake axle housing, under the action of gravity, the V-shaped centering plate 233 will move downward as a whole in the connecting plate 2332 through the guide rod 239 and compress the return spring 238. Thus, under the elastic force of the return spring, the V-shaped centering plate 233 and the wet brake axle housing 1 are always in contact. When the wet brake axle housing 1 is removed, the V-shaped centering plate 233 returns to its initial position under the action of the return spring 238. The slider 236 drives the product centering base 234 and the V-shaped centering plate 233 to move together toward the positioning mechanism 22. The front end of the shaft head connection part 11 of the wet brake axle housing 1 enters the product positioning hole 2211 of the positioning mechanism 22, thereby realizing the rapid positioning of the wet brake axle housing 1 and ensuring the linear movement of the wet brake axle housing 1 when entering the hole, making it easier for it to enter the product positioning hole without the risk of collision.

[0077] In another embodiment, in order to facilitate the movement of the positioning device of the present invention, lifting rings 212 are fixed around the base 213, and the device can be lifted by machinery.

[0078] Example 2:

[0079] The method for positioning a wet brake axle housing using the positioning device described in Embodiment 1 includes the following steps:

[0080] S1. First, install the positioning device 2 in Example 1 on the machine tool of the processing equipment; then place the axle housing blank of the wet brake axle housing 1 to be processed on the product centering base 234 and V-shaped centering plate 233 on the correction mechanism 23.

[0081] The centering outer circle 124 and V-shaped structure 131 on the wet brake axle housing 1 will contact the arc-shaped centering surface 2341 of the product centering base 234 and the V-shaped groove 2331 of the V-shaped centering plate 233, respectively. Since the V-shaped structure 131 is a symmetrical structure and matches the structure of the V-shaped groove 2331 of the V-shaped centering plate 233, under the action of gravity, it will automatically correct its center position and adapt to the V-shaped groove 2331, achieving the purpose of vertical centering. In addition, when the V-shaped structure 131 on the wet brake axle housing contacts the V-shaped centering plate 233, under the action of gravity, the V-shaped centering plate 233 will move downward as a whole in the connecting plate 2332 through the guide rod 239 and compress the return spring 238. Thus, under the action of the return spring, the V-shaped centering plate 233 and the wet brake axle housing 1 will always maintain contact.

[0082] S2. Push the correction mechanism 23 to dock and position the axle head connection part 11 of the wet brake axle housing with the positioning mechanism 22.

[0083] The correction mechanism 23 is pushed, and the slider 236 drives the product centering base 234 and the V-shaped centering plate 233 to move together toward the positioning mechanism 22. The shaft end connection part 11 of the wet brake axle housing 1 enters the product positioning hole 2211 of the positioning mechanism 22. Through the product positioning hole 2211 and product positioning surface 2212 on the positioning mechanism 22, it cooperates with the positioning outer circle 112 and positioning reference surface 122 on the wet brake axle housing 1, so that the shaft end connection part 11 is positioned on the positioning mechanism 22 and extends out of the opposite side of the mounting base 211 (to facilitate the processing equipment to grind, cut and countersink its end face in one go), thus realizing the positioning of the wet brake axle housing 1.

[0084] S3. After fixing the wet brake axle housing, open the processing equipment to process the end faces of both ends of the wet brake axle housing and the countersunk holes 111 and pin holes 121 on them respectively.

[0085] After pushing the two wet brake axle housings into their respective positioning mechanisms, adjust the clamping mechanism 24 on its outer periphery so that its movable end is above the clamping surface 123 of the brake connection part 12 of the wet brake axle housing 1, and tighten the shoulder nut 244 to drive the movable end of the pressure plate 241 to move downward, thereby clamping the brake connection part 12; at the same time, adjust the anti-tensioning mechanism 25 located in the middle position so that the two ends of the double-point pressure plate 251 are respectively above the clamping surface 123 of the brake connection part 12 of the two wet brake axle housings, and use a wrench to clamp the fixing head 252 on the reverse side of the mounting base 211 to rotate the anti-tension bolt 253, thereby driving the two ends of the double-point pressure plate 251 to clamp the two wet brake axle housings 1 respectively.

[0086] S4. After processing, first reverse the operation to loosen the clamping mechanism 24 and the anti-tensioning mechanism 25, then pull the correction mechanism 23 outward to separate the shaft head connection part 11 of the wet brake axle housing from the positioning mechanism 22, and finally remove it from the correction mechanism 23 to obtain the finished wet brake axle housing 1.

[0087] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0088] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A positioning device for a wet brake axle housing, comprising a mold base mechanism (21), wherein the mold base mechanism (21) comprises a vertically fixed base (213) and a mounting base (211), characterized in that: The base (213) is provided with a correction mechanism (23), which includes a base (231) fixed on the base (213), and a product centering base (234) and a V-shaped centering plate (233) for supporting the wet brake axle housing (1) are slidably connected on the base (231). The base (231) is fixedly provided with a guide rail (232), and a slider (236) is slidably connected on the guide rail (232); the bottom end of the product centering base (234) is fixedly connected to the slider (236) through a transition plate (235); the V-shaped centering plate (233) is connected to the transition plate (235) through a connecting plate (2332); One end of the connecting plate (2332) is fixedly connected to the transition plate (235), and the other end is built into the hollow cavity of the V-shaped centering plate (233) and connected to a guide rod (239). Both ends of the guide rod (239) are fixedly connected to the V-shaped centering plate (233), and the middle part of the guide rod is movably connected to the connecting plate (2332). A return spring (238) is sleeved on the guide rod (239) located above the connecting plate (2332). The top surface of the product centering base (234) is an arc-shaped centering surface (2341) that matches the wet brake axle housing (1); the top surface of the V-shaped centering plate (233) is a V-shaped groove (2331) that matches the V-shaped structure (131) on the axle housing connection part (13) in the wet brake axle housing (1). The mounting base (211) is fixedly mounted with a positioning mechanism (22) for positioning the axle head connection part (11) of the wet brake axle housing (1).

2. The positioning device according to claim 1, characterized in that: A clamping mechanism (24) for clamping the wet brake axle housing (1) is fixed on the mounting base (211) located on the outer periphery of the positioning mechanism (22). The clamping mechanism (24) includes a pressure plate (241), one end of which is mounted on the mounting base (211) via a top rod (242), and the other end is threaded onto the mounting base (211) via a double-ended bolt (245); a pressure plate spring (243) is sleeved on the double-ended bolt (245) located between the pressure plate (241) and the mounting base (211).

3. The positioning device according to claim 1, characterized in that: The correction mechanism (23) and the positioning mechanism (22) are provided in two sets. A counter-tensioning mechanism (25) for clamping the wet brake axle housing (1) is fixed on the mounting seat (211) between the two positioning mechanisms (22). A pressing mechanism (24) is fixed on the mounting seat (211) on the outer periphery of the two positioning mechanisms (22).

4. The positioning device according to claim 3, characterized in that: The anti-tensioning mechanism (25) includes a double-point pressure plate (251), and a anti-tension bolt (253) is threadedly connected to the middle of the double-point pressure plate (251). The bottom end of the anti-tension bolt (253) passes through the mounting base (211) and is fixedly connected to the fixing head (252). Rotating the fixing head (252) causes the anti-tension bolt (253) to drive the double-point pressure plate (251) to move vertically to achieve tightening or loosening. A anti-tension spring (254) is sleeved on the anti-tension bolt (253) located between the mounting base (211) and the double-point pressure plate (251).

5. The positioning device according to claim 1, characterized in that: The positioning mechanism (22) includes an upper positioning ring (221) and a lower positioning ring (223) fixed together. The outer periphery of the upper positioning ring (221) and the lower positioning ring (223) is stepped, and a product positioning hole (2211) is opened in the center. The outer periphery of the upper positioning ring (221) is fixedly installed on the mounting base (211) by fixing bolts (222).

6. The positioning device according to claim 5, characterized in that: The mounting base (211) has a mounting hole (2113), and the inner wall of the mounting hole (2113) has a fixing reference groove (2111) and a positioning groove (2112) that match the outer periphery of the upper positioning ring (221) and the lower positioning ring (223).

7. The positioning device according to claim 1, characterized in that: A stop (237) is fixed at the end of the guide rail (232).

8. A method for positioning a wet brake axle housing using the positioning device as described in any one of claims 1-7, characterized in that: Includes the following steps: S1. First, install the positioning device on the machine tool of the processing equipment; then place the axle housing blank of the wet brake axle housing to be processed on the product centering base (234) and V-shaped centering plate (233) on the correction mechanism (23) and make their contact surfaces match. S2. Push the correction mechanism (23) to dock and position the axle head connection (11) of the wet brake axle housing with the positioning mechanism (22); S3. After fixing the wet brake axle housing, machine the end faces at both ends and the countersunk holes (111) and pin holes (121). S4. After processing, pull the correction mechanism (23) outward to separate it from the positioning mechanism (22), and then remove the wet brake axle housing.

9. The method according to claim 8, characterized in that: The top surface of the product centering base (234) in step S1 is an arc-shaped centering surface (2341) that matches the wet brake axle housing (1); the top surface of the V-shaped centering plate (233) is a V-shaped groove (2331) that matches the V-shaped structure (131) on the axle housing connection part (13) in the wet brake axle housing (1). In step S2, the front end of the shaft head connection part (11) passes through the positioning mechanism (22) and is located on the opposite side of the mounting base (211); The fixing described in step S3 is performed using a clamping mechanism (24) and a counter-tensioning mechanism (25).

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