Axle housing smoothing and centering device

Abstract

The utility model provides an axle housing smoothing and centering device. The device comprises a machine tool, the machine tool is provided with a working table extending in the first preset direction and a working machine head extending in the second preset direction, the distance between the working machine head and the working table in the second preset direction can be adjusted, and the working table is further provided with two clamping mechanisms used for clamping a to-be-machined axle housing; the two clamping mechanisms are arranged in the first preset direction in a spaced mode. The smoothing mechanism is arranged on the working machine head, the smoothing mechanism can move along with the working machine head, and when the working machine head works, the smoothing mechanism abuts against the surface, facing the working machine head, of a lute hole of the axle housing to be machined; the centering mechanism is arranged on the workbench and used for centering the axle housing to be machined so that the central axis of a lute hole of the axle housing to be machined can be collinear with the central axis of the working machine head. According to the scheme, the problem of workpiece deformation caused by hydraulic drive adopted by an axle housing centering device in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge housing processing, in particular to a bridge housing smoothing and centering device. Background Art

[0002] The bridge housing is a basic component of the automobile chassis system. In the industry, the inner hole and upper surface of the bridge housing are mostly processed by vertical boring machines. Before processing, the bridge housing needs to be accurately smoothed and aligned to ensure the verticality of the processed upper surface of the bridge hole and the center axis of the bridge hole, as well as the position accuracy of the center point of the bridge hole.

[0003] In the prior art, the leveling and centering positioning devices of vertical boring machines are mostly swing-arm leveling and centering mechanisms. For example, in a swing-arm leveling and centering mechanism, a rotating sleeve is provided on the outside of the piston rod of the hydraulic cylinder, and a rotating hydraulic cylinder is provided on the upper end of the piston rod. The rotating hydraulic cylinder is connected to the rotating sleeve through a gear plate, and a cross arm is provided on the rotating sleeve. A pair of synchronous leveling rods are provided on the cross arm, and a hydraulic cylinder is provided between the two synchronous leveling rods, and a dovetail wedge is provided at the end of its piston rod, and inclined push rods are provided on both sides of the dovetail wedge. The entire mechanism is installed at the bottom of the bed near the column side, including the rotation of the leveling arm, the up and down movement of the leveling arm, and the movement of the centering rod to complete the leveling and centering positioning of the bridge housing.

[0004] However, the actions of the smoothing arm rotation, the up and down movement of the smoothing arm, the movement of the centering rod in the prior art are all hydraulically driven, which will cause contact deformation to the workpiece. Moreover, the internal seals of this mechanism will inevitably leak oil after long-term use, and the seals need to be replaced and maintained. Since the entire swing-arm smoothing and centering mechanism is installed at the bottom of the bed near the column side, it is inconvenient to disassemble, and the internal structure is complex, and the "cut seal" phenomenon often occurs when replacing the seals. At the same time, the centering rod of this device is used to center the inner hole of the lute hole of the bridge shell to be processed. The inner hole of the lute hole is the surface of the blank, and the lute hole reinforcement ring is mostly welded to the bridge shell, which has a welding deviation phenomenon. The center of the lute hole after processing has a position requirement on the total length of the bridge shell, and the positioning datum is not consistent with the design datum, resulting in low centering and positioning accuracy. In addition, the hydraulic components in the prior art need to be purchased after damage and cannot be made by themselves.

[0005] Currently, no effective solution has been proposed for the above technical problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a bridge housing smoothing and centering device to solve the problem of workpiece deformation caused by hydraulic drive of the bridge housing centering device in the prior art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a bridge housing smoothing and centering device is provided, comprising: a machine tool, the machine tool having a workbench extending along a first preset direction and a working head extending along a second preset direction, the distance between the working head and the workbench along the second preset direction being adjustable, wherein two clamping mechanisms for clamping the bridge housing to be processed are also arranged on the workbench, and the two clamping mechanisms are arranged at a distance along the first preset direction; a smoothing mechanism, the smoothing mechanism is arranged on the working head, the smoothing mechanism can be arranged to follow the movement of the working head, when the working head is working, the smoothing mechanism abuts against the surface of the lute hole of the bridge housing to be processed facing the working head; a centering mechanism, the centering mechanism is arranged on the workbench, the centering mechanism is used to center the bridge housing to be processed, so that the central axis of the lute hole of the bridge housing to be processed is collinear with the central axis of the working head.

[0008] Furthermore, the centering mechanism includes a first centering mechanism and a second centering mechanism, the first centering mechanism is arranged close to one of the clamping mechanisms, and the second centering mechanism is arranged close to the other clamping mechanism.

[0009] Furthermore, the smoothing mechanism includes: a guide rod mechanism, which is extended along a first preset direction, and the first end of the guide rod mechanism is connected to the working machine head; a smoothing ring, which is connected to the second end of the guide rod mechanism, and the radial direction of the smoothing ring is arranged parallel to the second preset direction; a roller mechanism, which is arranged in the smoothing ring, and one end of the roller mechanism is connected to the smoothing ring, and the roller mechanism can be rotatably arranged around the radial direction of the smoothing ring.

[0010] Furthermore, the length of the guide rod mechanism is adjustable.

[0011] Furthermore, the guide rod mechanism includes: a guide rod, which is extended along a first preset direction, and one end of the guide rod is connected to a smoothing ring; a guide sleeve, which is sleeved on the outside of the guide rod, and is arranged close to an end of the guide rod away from the smoothing ring, and is connected to a working machine head; an elastic member, which is sleeved on the outside of the guide rod, and a first end of the elastic member is connected to the guide sleeve, and a second end of the elastic member is arranged close to the smoothing ring; a locking member, which is arranged at the second end of the elastic member, and the locking member has a locking state for locking the elastic member and the guide rod, and a releasing state for releasing the elastic member and the guide rod.

[0012] Furthermore, the guide sleeve is fixedly connected to the working machine head, and the guide sleeve and the guide rod are arranged to be relatively movable along a first preset direction.

[0013] Furthermore, there are multiple guide rods, and the multiple guide rods are arranged at intervals along the circumference of the smoothing ring.

[0014] Furthermore, the roller mechanism includes: a roller, which is connected to the smoothing ring through a roller shaft and is located inside the smoothing ring; there are at least two rollers, and the rotation center of the roller mechanism is symmetrically arranged about the central axis of the lute hole of the bridge housing to be processed.

[0015] Furthermore, the smoothing ring is coaxially arranged with the working head and is located at the lower end of the working head.

[0016] Furthermore, the smoothing ring is any one of a semicircular, circular, rectangular, and polygonal shape.

[0017] Furthermore, the smoothing ring is semicircular, and the rotation axis of the roller passes through the center of the smoothing ring.

[0018] Furthermore, at least one of the first centering mechanism and the second centering mechanism includes: a centering component, which is arranged on the workbench and is movably arranged along a first preset direction; a driving component, which is arranged on the workbench and is arranged on a side of the centering component away from the clamping mechanism, and an output end of the driving component is connected to the centering component so that the driving component drives the centering component to move along the first preset direction.

[0019] Furthermore, at least one of the first centering mechanism and the second centering mechanism also includes: a base plate, the base plate is arranged on the workbench, the base plate extends along the first preset direction, the base plate is arranged on the side of one of the clamping mechanisms away from the other clamping mechanism, and the centering component and the driving component are both arranged on the base plate; wherein, at least one guide rail extending along the first preset direction is arranged on the base plate, and the centering component is slidably arranged along the guide rail.

[0020] Furthermore, a sliding block is sleeved on the guide rail, and the sliding block can be slidably arranged along the guide rail, and the sliding block is connected to the centering component.

[0021] Furthermore, the centering assembly includes: a support plate, which is extended along a second preset direction, and a centering block is provided on the side of the support plate facing the clamping mechanism, and the centering block is used to abut against the end of the bridge housing to be centered; a connecting block, which is provided on the side of the support plate away from the clamping mechanism, and the connecting block is connected to the output end of the driving assembly.

[0022] Furthermore, a receiving groove is provided on one side of the support plate away from the clamping mechanism, the opening of the receiving groove is arranged toward the side where the driving assembly is located, and the connecting block is arranged in the receiving groove.

[0023] Furthermore, the cross-section of the accommodating groove along the first preset direction is T-shaped, the connecting block includes a connecting shaft and two connecting block flanges arranged at intervals along the first preset direction, the connecting block flanges protrude from the outer peripheral surface of the connecting shaft, one of the connecting block flanges is located in the accommodating groove, and the other connecting block flange is located outside the accommodating groove, and the connecting shaft is connected to the output end of the driving assembly.

[0024] Furthermore, the driving assembly includes: a support plate, which is arranged on the workbench and has a mounting hole; and a cylinder, whose output end passes through the support hole and is connected to the centering assembly.

[0025] Furthermore, the first centering mechanism and the second centering mechanism are configured to have the same structure, and the cylinder of the first centering mechanism and the cylinder of the second centering mechanism are configured to have different cylinder diameters.

[0026] By applying the technical solution of the utility model, the centering mechanism can realize the centering of the bridge housing to be processed, and the smoothing mechanism is arranged on the working machine head, and the bridge housing is continuously smoothed during the processing, so that the processing effect is better, and the smoothing mechanism is connected to the working machine head, which occupies less space, is more convenient to disassemble, and is more convenient to use. When the smoothing mechanism performs the smoothing work, it is carried out by abutting against the surface of the bridge housing, avoiding the problems of workpiece deformation, oil leakage of hydraulic components, and inconvenient disassembly caused by hydraulic drive in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0028] Figure 1 A structural schematic diagram of an embodiment of the bridge housing smoothing and centering device according to the utility model is shown;

[0029] Figure 2 A structural schematic diagram of an embodiment of a centering mechanism of a bridge housing smoothing and centering device according to the utility model is shown;

[0030] Figure 3 A structural schematic diagram of an embodiment of a smoothing mechanism of a bridge housing smoothing and centering device according to the utility model is shown;

[0031] Figure 4 A structural schematic diagram of an embodiment of a guide rod mechanism of a bridge housing smoothing and centering device according to the utility model is shown;

[0032] Figure 5 A structural schematic diagram of an embodiment of a roller mechanism of a bridge housing smoothing and centering device according to the utility model is shown;

[0033] Figure 6 A structural schematic diagram of an embodiment of a first centering mechanism of the bridge housing smoothing and centering device according to the utility model is shown;

[0034] Figure 7 A structural schematic diagram of an embodiment of a second centering mechanism of the bridge housing smoothing and centering device according to the utility model is shown.

[0035] The above drawings include the following reference numerals:

[0036] 1. Working head;

[0037] 2. Appeasement institutions;

[0038] 21. Smoothing ring;

[0039] 22, guide rod mechanism; 221, guide rod; 2211, pin hole; 2212, large thread; 2213, small thread; 222, elastic member; 223, guide sleeve; 224, pin shaft; 225, locking member;

[0040] 23. roller mechanism; 231. roller shaft; 232. roller; 233. locking nut;

[0041] 3. Centering mechanism;

[0042] 31. first centering mechanism; 311. first bottom plate; 3111. first mounting hole; 312. first guide rail; 313. first slider; 314. first connecting block; 3141. first connecting block flange; 3142. first connecting shaft; 315. first support plate; 3151. first accommodating groove; 3152. first support plate base surface; 316. first centering block; 317. first cylinder; 3171. first cylinder stop; 3172. first cylinder piston rod; 318. first in-position switch; 319. first home position switch;

[0043] 32. second centering mechanism; 321. second bottom plate; 3211. second mounting hole; 322. second guide rail; 323. second slider; 324. second connecting block; 3241. second connecting block flange; 3242. second connecting shaft; 325. second support plate; 3251. second receiving groove; 3252. second support plate base surface; 326. second centering block; 327. second cylinder; 3271. second cylinder stop; 3272. second cylinder piston rod; 328. second in-position switch; 329. second home position switch;

[0044] 4. Clamping mechanism;

[0045] 5. Workbench. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0050] Combination Figures 1 to 7 As shown, according to a specific embodiment of the present application, a bridge housing smoothing and centering device is provided.

[0051] The bridge housing smoothing and centering device includes a machine tool, a smoothing mechanism 2 and a centering mechanism 3. The machine tool has a workbench 5 extending along a first preset direction and a working head 1 extending along a second preset direction. The distance between the working head 1 and the workbench 5 along the second preset direction is adjustable, wherein two clamping mechanisms 4 for clamping the bridge housing to be processed are also arranged on the workbench 5, and the two clamping mechanisms 4 are arranged at a distance along the first preset direction; the smoothing mechanism 2 is arranged on the working head 1, and the smoothing mechanism 2 can be arranged to move with the working head 1. When the working head 1 is working, the smoothing mechanism 2 abuts against the surface of the lute hole of the bridge housing to be processed that faces the working head 1; the centering mechanism 3 is arranged on the workbench 5, and the centering mechanism 3 is used to center the bridge housing to be processed so that the central axis of the lute hole of the bridge housing to be processed is collinear with the central axis of the working head 1.

[0052] By applying the technical solution of this embodiment, the centering mechanism 3 can realize the centering of the axle housing to be processed, and the smoothing mechanism 2 is arranged on the working machine head 1, and the axle housing is continuously smoothed during the processing, so that the processing effect is better, and the smoothing mechanism 2 is connected to the working machine head 1, which occupies less space, is more convenient to disassemble, and is more convenient to use. When the smoothing mechanism 2 performs the smoothing work, it is carried out by abutting against the surface of the axle housing, avoiding the problems of workpiece deformation, oil leakage of hydraulic components, and inconvenient disassembly caused by hydraulic drive in the prior art.

[0053] Specifically, the centering mechanism 3 includes a first centering mechanism 31 and a second centering mechanism 32, wherein the first centering mechanism 31 is disposed close to one of the clamping mechanisms 4, and the second centering mechanism 32 is disposed close to the other clamping mechanism 4. By disposing the first centering mechanism 31 and the second centering mechanism 32, the bridge housing can be centered in two directions with higher centering accuracy.

[0054] Specifically, the smoothing mechanism 2 includes a guide rod mechanism 22, a smoothing ring 21 and a roller mechanism 23. The guide rod mechanism 22 is extended along a first preset direction, and the first end of the guide rod mechanism 22 is connected to the working machine head 1; the smoothing ring 21 is connected to the second end of the guide rod mechanism 22, and the radial direction of the smoothing ring 21 is arranged parallel to the second preset direction; the roller mechanism 23 is arranged in the smoothing ring 21, and one end of the roller mechanism 23 is connected to the smoothing ring 21, and the roller mechanism 23 can be rotatably arranged around the radial direction of the smoothing ring 21. In this embodiment, the guide rod mechanism 22 can realize the fixed connection between the smoothing ring 21 and the working machine head 1, the smoothing ring 21 can abut against the surface of the lute hole of the bridge housing, and the bridge housing is smoothed during the processing, and the roller mechanism 23 can rotate around the radial direction of the smoothing ring 21 to further improve the smoothing effect.

[0055] Preferably, the length of the guide rod mechanism 22 is adjustable. By so configuring, the distance between the smoothing ring 21 and the working machine head 1 can be adjusted, thereby making the smoothing mechanism 2 applicable to axle housings of various sizes.

[0056] Those skilled in the art should understand that there are many ways to achieve an adjustable distance between the smoothing ring 21 and the working head 1. For example, as mentioned above, the length of the guide rod mechanism 22 can be set to be adjustable, or the length of the guide rod mechanism 22 can be kept unchanged, while the guide rod mechanism 22 is movably set along the axial direction of the working head 1, so that the guide rod mechanism 22 drives the smoothing ring 21 to move along the axial direction of the working head 1. When the guide rod mechanism 22 is movably set along the axial direction of the working head 1, it can be achieved by providing an axial guide rail, an axial drive member, etc. on the working head 1. Alternatively, a smoothing mechanism 2 with a variety of guide rod lengths can be prefabricated in advance, and a suitable smoothing mechanism 2 can be selected and installed on the working head 1 according to the type of bridge housing actually processed.

[0057] Specifically, the guide rod mechanism 22 includes a guide rod 221, an elastic member 222, a guide sleeve 223 and a locking member 225. The guide rod 221 is extended along a first preset direction, and one end of the guide rod 221 is connected to the smoothing ring 21; the guide sleeve 223 is sleeved on the outside of the guide rod 221, and the guide sleeve 223 is arranged close to the end of the guide rod 221 away from the smoothing ring 21, and the guide sleeve 223 is connected to the working machine head 1; the elastic member 222 is sleeved on the outside of the guide rod 221, the first end of the elastic member 222 is connected to the guide sleeve 223, and the second end of the elastic member 222 is arranged close to the smoothing ring 21; the locking member 225 is arranged at the second end of the elastic member 222, and the locking member 225 has a locking state for locking the elastic member 222 and the guide rod 221, and a releasing state for releasing the elastic member 222 and the guide rod 221. The elastic member 222 can provide a smoothing torque, and the elastic member 222 has good flexibility and will not cause contact deformation to the workpiece, thus avoiding damage to the workpiece caused by a traditional hydraulic smoothing device, and ensuring that the smoothing ring 21 can shrink upward when the working head 1 is working downward. The locking member 225 can adjust the length of the elastic member 222, and thus adjust the torque of the elastic member 222.

[0058] Preferably, the guide sleeve 223 is fixedly connected to the working head 1, and the guide sleeve 223 and the guide rod 221 are arranged to be relatively movable along the first preset direction. Such an arrangement allows the guide rod 221 to slide in the guide sleeve 223, thereby adjusting the distance between the working head 1 and the smoothing ring 21.

[0059] In an exemplary embodiment of the present application, the first preset direction is the height direction of the machine tool, that is, the axial direction of the working head 1. The guide sleeve 223 is fixed to the working head 1 by various methods such as pressure plate connection, clamp connection, welding, etc. The guide rod 221 is inserted into the guide sleeve 223 and can slide axially, thereby adjusting the height of the leveling ring 21 to adapt to various types of bridge housing leveling work.

[0060] Furthermore, there are multiple guide rods 221, and the multiple guide rods 221 are arranged at intervals along the circumference of the smoothing ring 21. By setting a suitable number of guide rod mechanisms 22, the stability of the smoothing ring 21 can be ensured, and tilting and shaking, etc., which affect the smoothing effect, can be avoided.

[0061] In an exemplary embodiment of the present application, the smoothing ring 21 is semicircular, and there are three guide rod mechanisms 22 . The three guide rod mechanisms 22 are arranged at intervals along the circumference of the smoothing ring 21 , and guide rod mechanisms 22 are provided at both ends of the smoothing ring 21 .

[0062] Specifically, the roller mechanism 23 includes a roller 232, which is connected to the smoothing ring 21 through a roller shaft 231 and is located inside the smoothing ring 21; there are at least two rollers 232, and the rotation center of the roller mechanism 23 is symmetrically arranged about the central axis of the lute hole of the bridge housing to be processed.

[0063] In an exemplary embodiment of the present application, the smoothing ring 21 is semicircular, and a roller 232 is respectively disposed at both ends of the smoothing ring 21. According to actual needs and the shape of the smoothing ring 21, the number and the location of the rollers 232 can be adaptively modified.

[0064] Preferably, the smoothing ring 21 is coaxially arranged with the working head 1 and is located at the lower end of the working head 1 . The smoothing ring 21 is semicircular, and the rotation axis of the roller 232 passes through the center of the smoothing ring 21 .

[0065] In an exemplary embodiment of the present application, the smoothing ring 21 may also be any one of a semicircular, circular, rectangular, and polygonal shape.

[0066] It should be noted that the smoothing ring 21 in the present embodiment may also be composed of a plurality of arc-shaped structures. For example, two quarter-circular smoothing rings 21 with the same radius may be provided, and the two smoothing rings 21 are symmetrically arranged about the central axis of the pipa hole, and a roller mechanism 23 is provided on each smoothing ring 21. After assembly, the rotation axes of the two roller mechanisms 23 respectively located on the two smoothing rings 21 pass through the center of the smoothing ring 21 and are symmetrical about the center of the circle.

[0067] Specifically, at least one of the first centering mechanism 31 and the second centering mechanism 32 includes a centering component and a driving component. The centering component is arranged on the workbench 5, and the centering component is movably arranged along the first preset direction; the driving component is arranged on the workbench 5, and the driving component is arranged on the side of the centering component away from the clamping mechanism 4, and the output end of the driving component is connected to the centering component, so that the driving component drives the centering component to move along the first preset direction. By using the centering component in conjunction with the clamping mechanism 4, the clamping mechanism 4 can support the bridge housing, and when the centering component moves to center the bridge housing, the bridge housing movement is more stable to avoid the bridge housing shaking, etc., and the clamping space of the clamping mechanism 4 can limit the movement of the bridge housing, which is more convenient for the centering operation.

[0068] In this embodiment, there are multiple ways to connect the centering assembly to the bridge housing. For example, the centering assembly can be abutted against the end of the bridge housing, or the centering assembly can form a limiting space or a clamping space to cooperate with the end of the bridge housing, so that when the driving assembly drives the centering assembly to move, the bridge housing is driven to move in a first preset direction, thereby realizing the centering of the bridge housing. In this embodiment, the first preset direction is a horizontal direction.

[0069] Furthermore, at least one of the first centering mechanism 31 and the second centering mechanism 32 further includes a bottom plate, which is arranged on the workbench 5, and which extends along the first preset direction. The bottom plate is arranged on the side of one of the clamping mechanisms 4 away from the other clamping mechanism 4, and the centering component and the drive component are both arranged on the bottom plate; wherein, at least one guide rail extending along the first preset direction is arranged on the bottom plate, and the centering component is slidably arranged along the guide rail. By arranging the centering component and the drive component on the bottom plate, it is convenient to install, disassemble, and replace the centering component and the drive component, that is, when the centering operation is not required, the centering component and the drive component can be disassembled by removing the bottom plate. The guide rail arranged on the bottom plate can facilitate the sliding of the centering component, so that the movement of the centering component is smoother.

[0070] Those skilled in the art should understand that there are many ways to implement the centering component sliding along the guide rail. For example, the guide rail can be a structure such as a slide groove or a slide rod, and the centering component can be provided with a guide wheel, a guide ring or other structures for sliding.

[0071] Preferably, a slider is sleeved on the guide rail, and the slider can be slidably arranged along the guide rail, and the slider is connected to the centering component. By providing the slider, the centering component can move more smoothly, with high linear motion accuracy, and the slider can avoid wear caused by direct contact between the centering component and the guide rail. Later maintenance can be directly performed by replacing the slider, reducing maintenance costs.

[0072] In an exemplary embodiment of the present application, in order to further improve the movement smoothness of the centering component, a plurality of guide rails are provided on the base plate, for example, two guide rails are provided, and the two guide rails are spaced apart so that the force on the centering component is balanced.

[0073] Specifically, the centering assembly includes a support plate and a connecting block. The support plate is extended along the second preset direction. A centering block is provided on the side of the support plate facing the clamping mechanism 4. The centering block is used to abut against the end of the bridge housing to be centered. The connecting block is provided on the side of the support plate away from the clamping mechanism 4. The connecting block is connected to the output end of the driving assembly. By providing a centering block for abutting against the end of the bridge housing, the extrusion of the bridge housing by the centering assembly can be reduced, and deformation of the bridge housing during the centering process can be avoided. The connecting block can realize the transmission of the output power of the driving assembly, driving the centering block and the bridge housing to move.

[0074] In an exemplary embodiment of the present application, the centering block is made of copper material to avoid damage to the end of the bridge housing, and the centering block is detachably connected to the back plate to facilitate maintenance and replacement.

[0075] Furthermore, a receiving groove is provided on one side of the back plate away from the clamping mechanism 4, the opening of the receiving groove is arranged toward the side where the driving assembly is located, and the connecting block is arranged in the receiving groove. Preferably, the cross-section of the receiving groove along the first preset direction is T-shaped, the connecting block includes a connecting shaft and two connecting block flanges arranged at intervals along the first preset direction, the connecting block flanges protrude from the outer peripheral surface of the connecting shaft, one of the connecting block flanges is located in the receiving groove, and the other connecting block flange is located outside the receiving groove, and the connecting shaft is connected to the output end of the driving assembly. By providing the connecting block flange, it is possible to prevent the connecting block from detaching from the T-shaped receiving groove, so that the movement of the centering assembly is more stable. In this embodiment, the receiving groove and the connecting block are clearance-fitted, and no rigid deformation will occur during the centering process.

[0076] Specifically, the driving assembly includes a support plate and a cylinder. The support plate is arranged on the workbench 5. A mounting hole is provided on the support plate. The output end of the cylinder passes through the support hole and is connected to the centering assembly. The support plate can realize the supporting and positioning function of the cylinder.

[0077] In an exemplary embodiment of the present application, the connecting block can be adjusted in the cylinder piston rod through the rod-shaped structure to ensure that the centering block has different strokes to meet the needs of different products.

[0078] Preferably, the first centering mechanism 31 and the second centering mechanism 32 are configured with the same structure, and the cylinder of the first centering mechanism 31 and the cylinder of the second centering mechanism 32 are configured with different cylinder diameters. By making the cylinder of the first centering mechanism 31 and the cylinder of the second centering mechanism 32 different in cylinder diameter, the output thrusts of the two cylinders are different, and thus the adjustment ranges of the first centering mechanism 31 and the second centering mechanism 32 are different, thereby achieving accurate positioning of the workpiece and improving positioning accuracy.

[0079] In this embodiment, when performing centering adjustment, the cylinder with a larger cylinder diameter is first driven to perform rough centering, and then the cylinder with a smaller cylinder diameter is driven to perform fine centering. The two centerings result in a better centering effect for the bridge housing.

[0080] In an exemplary embodiment of the present application, two pin holes are provided on the smoothing ring 21, and the roller shaft 231 of the roller 232 is connected to the smoothing ring 21 through the pin holes. The axes of the two pin holes are arranged in a colinear manner, and the axes of the pin holes pass through the center of the smoothing ring 21. The cross section of the smoothing ring 21 in the axial direction is rectangular, so that the smoothing ring 21 has a certain contact area with the bridge housing, reduces the contact pressure, and avoids wear of the bridge housing. According to actual needs, the cross section of the smoothing ring 21 in the axial direction can also be trapezoidal, inverted trapezoidal, or arc-shaped.

[0081] Preferably, the central axis of the output shaft of the centering mechanism 3 is arranged in line with the central axes of the two ends of the axle housing to be installed. This can better locate the center of the lute hole and solve the problem of inconsistent reference and low positioning accuracy of the lute hole in the traditional centering device.

[0082] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0083] The bridge housing smoothing and centering device in the above-mentioned embodiment eliminates the hydraulic device in the prior art, so that the workpiece will not produce contact deformation, and has a simple structure and is easy to install. It does not use the blank surface for positioning, so the positioning reference and the design reference are unified. Each component can be prefabricated and then assembled, and the manufacturing cost is lower. It solves the problems of workpiece deformation caused by hydraulic drive, oil leakage of hydraulic components, inconvenient disassembly, complex structure, blank surface positioning, inconsistent reference, and inability to make spare parts in the prior art.

[0084] The present application also provides a preferred embodiment of a bridge housing smoothing and centering device. In this embodiment, the machine tool is a boring machine.

[0085] like Figure 1 As shown, specifically, the bridge housing smoothing and centering device comprises a smoothing mechanism 2 and a centering mechanism 3. The smoothing mechanism 2 is mounted on the working head 1 of the boring machine, and the centering mechanism 3 is mounted on the clamping mechanism 4. In this embodiment, the clamping mechanism 4 is a V-shaped seat.

[0086] Specifically, the centering mechanism 3 includes a first centering mechanism 31 and a second centering mechanism 32 .

[0087] The first centering mechanism 31 includes a first bottom plate 311, a first guide rail 312 is fixed on the upper surface of the first bottom plate 311, a first slider 313 is installed on the upper end of the first guide rail 312, a first support plate 315 is fixed on the upper end of the first slider 313, a first support plate base surface 3152 is provided at the front end of the first support plate 315, a first accommodating groove 3151 is provided at the rear end of the first support plate 315, and a first centering block 316 is fixed at the front end of the first support plate base surface 3152. A first mounting hole 3111 is provided at the top of the upper end of the first bottom plate 311, a first cylinder 317 is connected to the first mounting hole 3111 through a first cylinder stop 3171, a first in-position switch 318 is fixed on the front end of the upper surface of the first cylinder 317, and a first home position switch 319 is fixed on the rear end of the upper surface of the first cylinder 317. A first connecting block flange 3141 is provided at the front end of the first connecting block 314 , and a first connecting shaft 3142 is provided at the rear end of the first connecting block 314 . The first connecting block flange 3141 is installed in the first accommodating groove 3151 , and the first connecting shaft 3142 is connected to the first cylinder 317 through the first cylinder piston rod 3172 .

[0088] The second centering mechanism 32 includes a second bottom plate 321, a second guide rail 322 is fixed on the upper surface of the second bottom plate 321, a second slider 323 is installed on the upper end of the second guide rail 322, a second support plate 325 is fixed on the upper end of the second slider 323, a second support plate base surface 3252 is provided at the front end of the second support plate 325, a second receiving groove 3251 is provided at the rear end of the second support plate 325, and a second centering block 326 is fixed at the front end of the second support plate base surface 3252. A second mounting hole 3211 is provided at the top of the upper end of the second bottom plate 321, a second cylinder 327 is connected to the second mounting hole 3211 through a second cylinder stop 3271, a second in-position switch 328 is fixed on the front end of the upper surface of the second cylinder 327, and a second home position switch 329 is fixed on the rear end of the upper surface of the second cylinder 327. A second connecting block flange 3241 is provided at the front end of the second connecting block 324 , and a second connecting shaft 3242 is provided at the rear end of the second connecting block 324 . The second connecting block flange 3241 is installed in the second accommodating groove 3251 , and the second connecting shaft 3242 is connected to the second cylinder 327 through the second cylinder piston rod 3272 .

[0089] In this embodiment, the first centering mechanism 31 and the second centering mechanism 32 are respectively located on both sides of the bridge housing, and the centering mechanism 3 is located outside the V-shaped seat to realize the centering operation of the bridge housing in relative directions. The installation axes of the first centering mechanism 31 and the second centering mechanism 32 are located on the same straight line as the central axis of the V-shaped seat, wherein the installation axis and the central axis are both axes along the horizontal direction. In this way, the center of the pipa hole can be better located, solving the problem of inconsistent datum and low positioning accuracy of the pipa hole in the traditional centering device.

[0090] Furthermore, the first guide rail 312 and the second guide rail 322 are installed in parallel and parallel to the sides of the first base plate 311 and the second base plate 321 to ensure the parallelism of movement. The first receiving groove 3151 and the second receiving groove 3251 are in the form of T-slots to ensure reliable connection. The first connecting block flange 3141 and the second connecting block flange 3241 are gap-connected with the first receiving groove 3151 and the second receiving groove 3251 so that no rigid deformation will occur during the centering process. The first connecting shaft 3142 and the second connecting shaft 3242 are threadedly connected with the first cylinder piston rod 3172 and the second cylinder piston rod 3272. The connection length can be adjusted to ensure that the centering block has different strokes to meet different products. The first centering block 316 and the second centering block 326 are made of copper. The axle end of the bridge housing will not be damaged. The first cylinder 317 has a larger cylinder diameter than the second cylinder 327. Different piston diameters can output different thrusts, thereby achieving precise positioning of the workpiece and improving positioning accuracy.

[0091] The smoothing mechanism 2 includes a smoothing ring 21 at the bottom and a guide rod mechanism 22 arranged on the upper end surface of the smoothing ring 21. The smoothing ring 21 is a semicircular structure, and roller mechanisms 23 are fixed at both ends of the smoothing ring 21. The guide rod mechanism 22 includes a guide rod 221, a guide sleeve 223 is installed on the top of the guide rod 221, a spring (i.e. the aforementioned elastic member 222) is installed on the lower part of the guide sleeve 223, a nut (i.e. the aforementioned locking member 225) is installed at the bottom of the guide rod 221, and is close to the lower end of the spring, and a pin shaft 224 is fixed at the top of the guide rod 221 by setting a pin hole 2211, and the pin shaft 224 is located on the outer side of the upper end of the guide sleeve 223. The middle part of the roller mechanism 23 is a roller 232, which is connected to the smoothing ring 21 through a roller shaft 231. A locking nut 233 is installed at the tail of the roller shaft 231. There are two locking nuts 233, and the two locking nuts 233 are respectively located on both sides of the radial direction of the smoothing ring 21. In this embodiment, the smoothing mechanism 2 is coaxially installed with the working head 1 and is located at the lower end of the working head 1. The smoothing mechanism 2 can move up and down with the power head, has a large range of movement, and can meet the processing requirements of bridge shells of different specifications.

[0092] Specifically, the smoothing ring 21 is semicircular in shape and has a rectangular cross section, a threaded hole on the upper surface, and pin holes at both ends, the two pin holes are coaxial, and the axis of the pin holes passes through the center of the smoothing ring 21. The semicircular structure can ensure sufficient structural rigidity and smoothing accuracy of the workpiece.

[0093] Specifically, the roller mechanism 23 is installed symmetrically, and the rollers 232 are all located inside the smoothing ring 21. This structure can ensure that the workpiece does not need to be withdrawn after being smoothed, and the upper end surface of the lute hole is in contact with the roller 232. During the centering process, the workpiece can directly move axially with little resistance, and directly rotate with the main shaft. During the rotation, the roller 232 can roll on the surface of the workpiece.

[0094] Specifically, the guide sleeve 223 and the guide rod 221 are slidable structures to achieve axial movement. The lower part of the guide rod 221 is designed with a large thread 2212 and a small thread 2213, and the small thread 2213 is located at the lower end of the large thread 2212. The large thread 2212 is used to install a nut, through which axial adjustment can be performed, and the small thread 2213 is used to fasten the guide rod mechanism 22 to the smoothing ring 21.

[0095] Specifically, the spring is a rectangular spring. The function of the spring is to provide a smoothing torque, and the spring has good flexibility and will not cause contact deformation to the workpiece, thereby avoiding damage to the workpiece that may be caused by a traditional hydraulic smoothing device, and ensuring that the smoothing ring 21 can shrink upward when the working head 1 is processing downward.

[0096] Specifically, the nut is a flange nut, the flange is adjacent to the spring, and its function is to adjust the torque.

[0097] Specifically, the roller 232 is an extended roller, and the function of the roller 232 is to provide a more stable smoothing effect, effectively eliminate the unevenness of the workpiece, and improve the processing accuracy.

[0098] Specifically, one end of the roller shaft 231 is designed with a thread, and the other end is designed with an anti-falling flange, which can ensure the operating reliability of the roller 232.

[0099] The working principle of the axle housing leveling and centering device in this embodiment is as follows:

[0100] The bridge housing to be processed is made to face upwards with its lute hole, and the bridge housing is transported to the V-shaped seat through the feeding mechanism. The working head 1 starts to move downward, and the smoothing mechanism 2 moves downward with the working head 1. The roller mechanism 23 contacts the upper surface of the lute hole of the bridge housing, and the smoothing mechanism 2 continues to move downward with the working head 1. The smoothing ring 21 smoothes the bridge housing under the torque of the spring, and the bridge housing only needs a small torque to be smoothed. After the bridge housing is smoothed, the smoothing in place switch located on the spindle box slide (which can be debugged in advance according to the model of the processed product) sends a signal, and the second centering mechanism 32 starts to work, and the second cylinder piston rod 3272 extends, driving the second centering block 326 to push the bridge housing into the travel range of the first centering mechanism 31. The second in-position switch 328 sends a signal, the first centering mechanism 31 starts working, the first cylinder piston rod 3172 extends, driving the first centering block 316 to push the bridge housing to the correct centering position (debug in advance according to the processing product model. In this embodiment, the position where the first cylinder 317 is fully extended by adjusting the first connecting shaft 3142 is the correct centering position). Since the first cylinder 317 has a larger cylinder diameter than the second cylinder 327, the thrust generated is greater, which can push the bridge housing to move to the right. At this time, the first in-position switch 318 sends a signal, the clamp of the machine tool starts working, and after clamping the workpiece, the working head 1 starts rotating processing, the smoothing mechanism 2 rotates with the working head 1, and the roller 232 rolls on the upper end surface of the bridge housing lute hole. When the working head 1 continues to feed downward, the smoothing ring 21 slides upward in the guide sleeve 223 through the guide rod 221. When the processing is completed, all mechanisms move in the opposite direction, and the smoothing mechanism 2 and the centering mechanism 3 return to their original positions.

[0101] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0102] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0103] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0104] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bridge housing leveling and centering device, characterized in that: include: A machine tool, the machine tool comprising a workbench (5) extending along a first preset direction and a work head (1) extending along a second preset direction, the distance between the work head (1) and the workbench (5) along the second preset direction being adjustable, wherein two clamping mechanisms (4) for clamping a bridge housing to be processed are further arranged on the workbench (5), and the two clamping mechanisms (4) are arranged at a distance along the first preset direction; A smoothing mechanism (2), wherein the smoothing mechanism (2) is arranged on the working machine head (1), and the smoothing mechanism (2) can be arranged to move along with the working machine head (1). When the working machine head (1) is working, the smoothing mechanism (2) abuts against the surface of the lute hole of the axle housing to be processed that faces the working machine head (1); A centering mechanism (3), wherein the centering mechanism (3) is arranged on the workbench (5), and the centering mechanism (3) is used to center the axle housing to be processed so that the central axis of the lute hole of the axle housing to be processed is collinear with the central axis of the working machine head (1).

2. The bridge housing smoothing and centering device according to claim 1, characterized in that: The centering mechanism (3) comprises a first centering mechanism (31) and a second centering mechanism (32); the first centering mechanism (31) is arranged close to one of the clamping mechanisms (4), and the second centering mechanism (32) is arranged close to the other clamping mechanism (4).

3. The bridge housing smoothing and centering device according to claim 1, characterized in that: The smoothing mechanism (2) comprises: A guide rod mechanism (22), the guide rod mechanism (22) extending along the first preset direction, and a first end of the guide rod mechanism (22) connected to the working machine head (1); a smoothing ring (21), the smoothing ring (21) being connected to the second end of the guide rod mechanism (22), and the radial direction of the smoothing ring (21) being arranged parallel to the second preset direction; A roller mechanism (23), wherein the roller mechanism (23) is arranged in the smoothing ring (21), and one end of the roller mechanism (23) is connected to the smoothing ring (21), and the roller mechanism (23) can be rotatably arranged around the radial direction of the smoothing ring (21).

4. The bridge housing smoothing and centering device according to claim 3, characterized in that: The length of the guide rod mechanism (22) is adjustable.

5. The bridge housing smoothing and centering device according to claim 3 or 4, characterized in that: The guide rod mechanism (22) comprises: A guide rod (221), the guide rod (221) extending along the first preset direction, one end of the guide rod (221) being connected to the smoothing ring (21); A guide sleeve (223), the guide sleeve (223) being sleeved on the outside of the guide rod (221), the guide sleeve (223) being arranged close to an end of the guide rod (221) away from the smoothing ring (21), and the guide sleeve (223) being connected to the working machine head (1); an elastic member (222), wherein the elastic member (222) is sleeved on the outside of the guide rod (221), a first end of the elastic member (222) is connected to the guide sleeve (223), and a second end of the elastic member (222) is disposed close to the smoothing ring (21); A locking member (225), wherein the locking member (225) is arranged at the second end of the elastic member (222), and the locking member (225) has a locking state in which the elastic member (222) and the guide rod (221) are locked, and a releasing state in which the elastic member (222) and the guide rod (221) are released.

6. The bridge housing leveling and centering device according to claim 5, characterized in that: The guide sleeve (223) is fixedly connected to the working machine head (1), and the guide sleeve (223) and the guide rod (221) are arranged to be relatively movable along the first preset direction.

7. The bridge housing smoothing and centering device according to claim 5, characterized in that: There are a plurality of guide rods (221), and the plurality of guide rods (221) are arranged at intervals along the circumference of the smoothing ring (21).

8. The bridge housing smoothing and centering device according to claim 3, characterized in that: The roller mechanism (23) comprises: A roller (232), the roller (232) being connected to the smoothing ring (21) via a roller shaft (231), and the roller (232) being located inside the smoothing ring (21); There are at least two rollers (232), and the rotation center of the roller mechanism (23) is symmetrically arranged with respect to the central axis of the lute hole of the axle housing to be processed.

9. The bridge housing smoothing and centering device according to claim 3, characterized in that: The smoothing ring (21) is coaxially arranged with the working machine head (1) and is located at the lower end of the working machine head (1).

10. The axle housing smoothing and centering device according to claim 3, characterized in that: The smoothing ring (21) is any one of a semicircular, circular, rectangular and polygonal shape.

11. The axle housing smoothing and centering device according to claim 8, characterized in that: The smoothing ring (21) is semicircular, and the rotation axis of the roller (232) passes through the center of the smoothing ring (21).

12. The axle housing smoothing and centering device according to claim 2, characterized in that: At least one of the first centering mechanism (31) and the second centering mechanism (32) comprises: A centering component, the centering component is arranged on the workbench (5), and the centering component is movably arranged along the first preset direction; A driving component, wherein the driving component is arranged on the workbench (5), the driving component is arranged on a side of the centering component away from the clamping mechanism (4), and the output end of the driving component is connected to the centering component so that the driving component drives the centering component to move along the first preset direction.

13. The axle housing smoothing and centering device according to claim 12, characterized in that: At least one of the first centering mechanism (31) and the second centering mechanism (32) further comprises: a bottom plate, the bottom plate being arranged on the workbench (5), the bottom plate extending along the first preset direction, the bottom plate being arranged on a side of one of the clamping mechanisms (4) away from the other clamping mechanism (4), and the centering assembly and the driving assembly being arranged on the bottom plate; Wherein, at least one guide rail extending along the first preset direction is arranged on the bottom plate, and the centering component is slidably arranged along the guide rail.

14. The axle housing smoothing and centering device according to claim 13, characterized in that: A sliding block is sleeved on the guide rail, and the sliding block can be slidably arranged along the guide rail, and the sliding block is connected to the centering component.

15. The axle housing smoothing and centering device according to claim 12, characterized in that: The centering assembly comprises: A backing plate, the backing plate extending along the second preset direction, a centering block being provided on one side of the backing plate facing the clamping mechanism (4), the centering block being used to abut against an end of the axle housing to be centered; A connecting block is arranged on a side of the support plate away from the clamping mechanism (4), and the connecting block is connected to the output end of the driving component.

16. The axle housing smoothing and centering device according to claim 15, characterized in that: A receiving groove is provided on one side of the support plate away from the clamping mechanism (4), the opening of the receiving groove is arranged toward the side where the driving component is located, and the connecting block is arranged in the receiving groove.

17. The axle housing smoothing and centering device according to claim 16, characterized in that: The cross-section of the accommodating groove along the first preset direction is T-shaped, and the connecting block includes a connecting shaft and two connecting block flanges spaced apart along the first preset direction, and the connecting block flanges protrude from the outer circumferential surface of the connecting shaft, one of the connecting block flanges is located in the accommodating groove, and the other connecting block flange is located outside the accommodating groove, and the connecting shaft is connected to the output end of the driving assembly.

18. The axle housing smoothing and centering device according to claim 12, characterized in that: The drive assembly comprises: A support plate, the support plate being arranged on the workbench (5), and having a mounting hole; A cylinder, wherein the output end of the cylinder passes through the mounting hole and is connected to the centering assembly.

19. The axle housing smoothing and centering device according to claim 18, characterized in that: The first centering mechanism (31) and the second centering mechanism (32) are arranged with the same structure, and the cylinder of the first centering mechanism (31) and the cylinder of the second centering mechanism (32) are arranged with different cylinder diameters.

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