CN210878748U

CN210878748U - Drive axle housing clamp

Info

Publication number: CN210878748U
Application number: CN201921959381.0U
Authority: CN
Inventors: 吴志强; 孙庆强; 付正勇; 周伟
Original assignee: Guangdong Fuwa Heavy Industry Co Ltd
Current assignee: Guangdong Fuwa Heavy Industry Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-30
Anticipated expiration: 2029-11-13

Abstract

The utility model relates to a drive axle housing clamp, which comprises a workbench, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are arranged on two sides of the workbench; the first clamping piece comprises a first base, first supports and a self-centering assembly, wherein the first supports are oppositely arranged at two ends of the first base, the self-centering assembly is arranged in the middle of the first base, a smoothing mechanism is respectively arranged between the two first supports and two ends of the self-centering assembly, the two first supports, the two smoothing mechanisms and the self-centering assembly are positioned on the same axis, and a pair of pressing assemblies are respectively oppositely arranged at two sides of two ports of the self-centering assembly; the second clamping piece comprises a second base, second supports and middle positioning assemblies, the second supports are oppositely arranged at two ends of the second base, the middle positioning assemblies are arranged in the middle of the second base, the two second supports and the middle positioning assemblies are located on the same axis, and each second support is provided with an angular positioning assembly. Transaxle axle housing anchor clamps, the work piece is packed into smoothly, the location is accurate reliable, the clamping rigidity is good, guarantees the machining precision of axle housing.

Description

Drive axle housing clamp

Technical Field

The utility model relates to an automobile drive axle processing equipment technical field especially relates to a transaxle axle housing anchor clamps.

Background

The driving axle housing is an assembly base body for mounting a main speed reducer, a differential mechanism, a half shaft and the like, and is mainly used for supporting and protecting the main speed reducer, the differential mechanism, the half shaft and the like. In general, a conventional non-axle-break type drive axle housing is a rigid hollow beam supported on left and right drive wheels, in which drive elements such as a final drive, a differential, and half shafts are mounted, and is connected to a vehicle frame or a vehicle compartment by longitudinally-arranged leaf springs.

The axle housing structure of wet-type bridge and current product structure difference are big, and both ends position and spindle nose need be connected with the flange, and the inside leakproofness will be good, and is higher to machining precision's requirement. Wherein, the axle housing needs to carry out processing technology such as pipa hole, both ends hole, leaf spring seat, air vent, oil drain usually in process of production, and current processing technology need separately accomplish through many processes, and every process need carry out corresponding anchor clamps and change, carries out the clamping to the axle housing work piece many times and transports not only can cause manufacturing cost to increase by a wide margin, still can cause certain error, and complex operation is inconvenient, and machining efficiency is low to machining precision is not accurate enough. The axle housing is used for supporting all parts, and the machining precision of the axle housing directly influences the performance of the whole axle.

Therefore, more and more need a transaxle axle housing anchor clamps in the market use production workstation to improve the production efficiency of transaxle axle housing, can accomplish the processing of a plurality of processes through one set of anchor clamps to guarantee the machining precision of axle housing, avoid the error that many times clamping produced, in order to satisfy large-scale industrial production's demand.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses an it is not enough to overcome prior art, provides a transaxle axle housing anchor clamps, and the work piece is packed into smoothly, and the location is accurate reliable, and the clamping rigidity is good, has guaranteed the machining precision of axle housing.

In order to realize the purpose, the utility model discloses a technical scheme be:

a drive axle housing clamp comprises a workbench, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are arranged on two sides of the workbench; the first clamping piece comprises a first base, first supports and a self-centering assembly, wherein the first supports are oppositely arranged at two ends of the first base, the self-centering assembly is arranged in the middle of the first base, a smoothing mechanism is respectively arranged between the two first supports and two ends of the self-centering assembly, the two first supports, the two smoothing mechanisms and the self-centering assembly are positioned on the same axis, and a pair of pressing assemblies are respectively oppositely arranged at two sides of two ports of the self-centering assembly; the second clamping piece comprises a second base, second supports and middle positioning assemblies, the second supports are oppositely arranged at two ends of the second base, the middle positioning assemblies are arranged in the middle of the second base, the two second supports and the middle positioning assemblies are located on the same axis, and each second support is provided with an angular positioning assembly.

In order to obtain better technological effect, further technological improvement still includes, first folder still includes bottom auxiliary supporting seat and lateral part auxiliary supporting seat, bottom auxiliary supporting seat sets up in one side from the subassembly of feeling relieved, and its supporting direction perpendicular to first base, lateral part auxiliary supporting seat sets up in one side from the subassembly of feeling relieved, and its supporting direction is parallel with first base.

In order to obtain better technical effect, the further technical improvement comprises that the bottom auxiliary supporting seat comprises a bottom supporting oil cylinder arranged on the first base and a bottom supporting head arranged at the output end of the bottom supporting oil cylinder; the lateral auxiliary supporting seat comprises a lateral supporting frame arranged on the first base, a lateral supporting oil cylinder fixed on the lateral supporting frame and a lateral supporting head arranged at the output end of the lateral supporting oil cylinder.

In order to obtain better technical effect, the further technical improvement comprises that the self-centering assembly comprises a left supporting seat, a left wedge rod, a right supporting seat, a right wedge rod, a wedge rod seat, a self-centering wedge rod and a wedge rod oil cylinder; the left supporting seat and the right supporting seat are respectively and oppositely arranged on two sides of the wedge rod seat, the upper ends of the left supporting seat and the right supporting seat are respectively provided with a left auxiliary supporting oil cylinder and a right auxiliary supporting oil cylinder, the lower ends of the left supporting seat and the right supporting seat are respectively provided with a sliding chute, and the far ends of the left wedge rod and the right wedge rod are respectively arranged in the sliding chutes of the left supporting seat and the right supporting seat; the wedge rod oil cylinder is fixed on one side of the wedge rod seat, one end of the self-centering wedge rod is arranged at the output end of the wedge rod oil cylinder, two sides of the other end of the self-centering wedge rod are inclined towards the center, and the opposite ends of the left wedge rod and the right wedge rod respectively abut against the two sides of one end, provided with the inclined surface, of the self-centering wedge rod in a sliding mode.

In order to obtain a better technical effect, the further technical improvement further comprises that the smoothing mechanism comprises a smoothing bottom plate, a floating supporting plate, a guide cylinder, a guide pillar and a pressure spring, the smoothing bottom plate, the floating supporting plate, the guide cylinder, the guide pillar and the pressure spring are arranged on the first base, the bottom of the guide cylinder is fixed on the upper surface of the smoothing bottom plate, the guide pillar is arranged in the guide cylinder, the upper end of the guide pillar penetrates through the floating supporting plate, the pressure spring is sleeved on the guide pillar, and two ends of the pressure spring are respectively pressed on the upper surface of the guide cylinder and the.

In order to obtain a better technical effect, the further technical improvement further comprises that the pressing assembly comprises a pressing support, a pressing oil cylinder and a pressing plate, wherein the pressing support, the pressing oil cylinder and the pressing plate are arranged on the first base, the pressing oil cylinder is arranged on the pressing support, the pressing plate is arranged at the output end of the pressing oil cylinder, and the pressing oil cylinder is used for driving the pressing plate to rotate.

In order to obtain better technical effect, the further technical improvement further comprises that the second clamping piece further comprises two pairs of auxiliary supporting assemblies, the two pairs of auxiliary supporting assemblies are respectively and symmetrically arranged at two ends of the middle positioning assembly, and the two pairs of auxiliary supporting assemblies are positioned between the two second supports; the two pairs of auxiliary supporting assemblies, the two second supports and the middle positioning assembly are positioned on the same axis.

In order to obtain better technical effect, further technical improvement still includes, the auxiliary supporting component includes relative left mount pad and right mount pad that sets up, the line perpendicular to middle locating component's of left mount pad and right mount pad axis, and be equipped with left auxiliary supporting hydro-cylinder and right auxiliary supporting hydro-cylinder on left mount pad and the right mount pad respectively relatively aslope, the surface of left auxiliary supporting hydro-cylinder and right auxiliary supporting hydro-cylinder is equipped with protective cover plate respectively, open in the middle of protective cover plate has the through-hole, the output retractable of left auxiliary supporting hydro-cylinder and right auxiliary supporting hydro-cylinder sets up in corresponding protective cover plate's through-hole.

In order to gain better technological effect, further technological improvement still includes, middle locating component is equipped with the uide bushing including setting up the circle supporting seat on the second base, setting up the circle support ring at circle supporting seat upper edge and setting up the positioning disk at circle support ring upper edge in the cavity structures that circle supporting seat and circle support ring enclose, the bottom of uide bushing is equipped with the middle corner hydro-cylinder that compresses tightly, and the output that the middle corner hydro-cylinder that compresses tightly is equipped with the guide post, and the positioning disk is passed to the upper end of this guide post, and the top is equipped with and compresses tightly the flat board, the top edge of positioning disk still is equipped with the circular arc cushion.

In order to obtain a better technical effect, the further technical improvement comprises that the angular positioning assembly comprises an angular oil cylinder and an angular flat plate, the angular oil cylinder is arranged in the second support, the angular flat plate is arranged at the output end of the angular oil cylinder, and the angular oil cylinders of the angular positioning assembly respectively push the angular flat plate to move towards the middle positioning assembly; and the two sides of the top of the second support are respectively and outwardly provided with a left inclined block and a right inclined block, the left inclined block and the right inclined block are respectively and vertically provided with a left pressure oil cylinder and a right pressure oil cylinder, and the output ends of the left pressure oil cylinder and the right pressure oil cylinder are respectively provided with a left pressing block and a right pressing block.

Transaxle axle housing anchor clamps, carry out continuous processing to the axle housing work piece through first folder and the second folder that sets up on the workstation, carry out lute hole to the axle housing work piece in first folder, the processing in both ends hole is handled, simultaneously can carry out the plate spring seat to the axle housing work piece of having processed lute hole at the second folder, the air vent, the processing of oil drain hole, twice manufacturing procedure can be in the crouching with two workstations and go on alternately, and the clamping process of axle housing work piece need not through loaded down with trivial details adjustment, the work piece is packed into smoothly, the location is accurate reliable, the cutting requirement of course of working is satisfied to the clamping rigidity, thereby eliminate the error that many times clamping brought, the machining precision of axle housing work piece has been guaranteed, reduce the processing cost, in order to satisfy the demand of large-scale industrial production.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a clamp for an axle housing of a drive axle according to the present embodiment;

FIG. 2 is a schematic structural diagram of a first clip of the present embodiment;

FIG. 3 is a top view of the first clip member of the present embodiment;

FIG. 4 is a front view of the self-centering assembly of the present embodiment;

FIG. 5 is an exploded view of the self-centering assembly of the present embodiment;

fig. 6 is a schematic structural view of the smoothing mechanism of the present embodiment;

FIG. 7 is a schematic structural diagram of a second clip of the present embodiment;

FIG. 8 is a schematic structural diagram of the middle positioning assembly of the present embodiment;

FIG. 9 is a cross-sectional view of the intermediate positioning assembly of the present embodiment;

FIG. 10 is a schematic view of the connection between the second support and the angular positioning assembly of this embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible implementations and advantages of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1 to fig. 10.

As shown in fig. 1, the present embodiment provides a transaxle case clamp, which includes a workbench 300, and a first clamp 100 and a second clamp 200 disposed on the workbench 300, for convenience of operation, the workbench 300 of the present embodiment is a rotary workbench, the rotary workbench can implement 360 ° rotation operation, and the rotary workbench is provided with an exchangeable workbench, and one clamp is processed while the other clamp is capable of dismounting a workpiece. The axle housing workpiece is positioned and clamped in the first clamping piece 100, and the processing of four azimuth contents such as an axle housing lute surface, end surfaces at two ends, a rear cover surface and the like is completed by utilizing the 0-degree, 90-degree, 180-degree and 270-degree positions of the rotary worktable; the axle housing workpiece is positioned and clamped by the second clamping piece 200, and the front and rear position contents of an axle housing plate spring seat, a vent hole, an oil drain hole and the like are processed by utilizing the 0-degree and 180-degree positions of the rotary worktable. It should be noted that the axle housing workpiece machined in the first clamp member 100 can be transferred to the second clamp member 200 by a lifting tool of the table 300, which is of conventional design.

As shown in fig. 2 and 3, in the present embodiment, the first clamp 100 includes a first base 10, first supports 20 oppositely disposed at two ends of the first base 10, and a self-centering assembly 30 disposed in the middle of the first base 10, a leveling mechanism 40 is respectively disposed between the two first supports 20 and two ends of the self-centering assembly 30, the two first supports 20, the two leveling mechanisms 40, and the self-centering assembly 30 are located on the same axis, and a pair of pressing assemblies 50 is respectively disposed oppositely at two sides of two ports of the self-centering assembly 30; the first clamp 100 further includes a bottom auxiliary support base 110 and a side auxiliary support base 60, the bottom auxiliary support base 110 is disposed on one side of the self-centering assembly 30 and has a support direction perpendicular to the first base 10, and the side auxiliary support base 60 is disposed on one side of the self-centering assembly 30 and has a support direction parallel to the first base 10. The first support 20 of the present embodiment is a V-shaped support.

As shown in fig. 4 and 5, the self-centering assembly 30 of the present embodiment includes a left support seat 31, a left wedge 32, a right support seat 33, a right wedge 34, a wedge seat 35, a self-centering wedge 36, and a wedge cylinder 37; the left supporting seat 31 and the right supporting seat 33 are respectively and oppositely arranged at two sides of the wedge rod seat 35, the upper ends of the left supporting seat 31 and the right supporting seat 33 are respectively provided with a left auxiliary supporting oil cylinder 38 and a right auxiliary supporting oil cylinder 39, the lower ends of the left supporting seat 31 and the right supporting seat 33 are respectively provided with a sliding chute, and the far ends of the left wedge rod 32 and the right wedge rod 34 are respectively arranged in the sliding chutes of the left supporting seat 31 and the right supporting seat 33; the wedge rod oil cylinder 37 is fixed on one side of the wedge rod seat 35, one end of the self-centering wedge rod 36 is arranged at the output end of the wedge rod oil cylinder 37, two sides of the other end of the self-centering wedge rod 36 are inclined towards the center, and the opposite ends of the left wedge rod 32 and the right wedge rod 34 respectively abut against the two sides of one end, provided with the inclined surface, of the self-centering wedge rod 36 in a sliding mode. In order to prevent the left wedge 32 and the right wedge 34 from slipping out of the wedge holder 35, a left stopper 301 and a right stopper 302 are respectively disposed at the outer sides of the left support seat 31 and the right support seat 33.

In addition, the bottom auxiliary supporting seat 110 includes a bottom supporting cylinder 111 disposed on the first base 10 and a bottom supporting head 112 disposed at an output end of the bottom supporting cylinder 111; the side auxiliary supporting seat 60 includes a side supporting frame 61 disposed on the first base 10, a side supporting cylinder 62 fixed on the side supporting frame 61, and a side supporting head 63 disposed at an output end of the side supporting cylinder 62. In the embodiment, the left auxiliary supporting cylinder 38, the right auxiliary supporting cylinder 39 and the bottom supporting cylinder 111 together form a bottom auxiliary positioning adjusting mechanism of the first clamp 100, and cooperate with the side supporting cylinder 62 to perform corresponding auxiliary positioning clamping on the axle housing workpiece.

As shown in fig. 6, the smoothing mechanism 40 of the present embodiment includes a smoothing bottom plate 41 disposed on the first base 10, a floating support plate 42, a guide cylinder 43, a guide post 44, and a pressure spring 45, wherein the bottom of the guide cylinder 43 is fixed on the upper surface of the smoothing bottom plate 41, the guide post 44 is disposed in the guide cylinder 43, the upper end of the guide post 44 penetrates through the floating support plate 42, the pressure spring 45 is sleeved on the guide post 44, and two ends of the pressure spring are respectively pressed against the upper surface of the guide cylinder 43 and the lower surface of the floating support plate 42. In addition, a lower limiting seat 46 is arranged on the leveling bottom plate 41, an upper limiting seat 47 is arranged at the bottom of the floating supporting plate 42, the lower end of the upper limiting seat 47 is slidably arranged on the lower limiting seat 46, and the sliding stroke of the upper limiting seat 47 is smaller than the compression stroke of the pressure spring 45.

The pressing assembly 50 of the embodiment comprises a pressing bracket 51 arranged on the first base 10, a pressing cylinder 52 and a pressing plate 53, wherein the pressing cylinder 52 is arranged on the pressing bracket 51, the pressing plate 53 is arranged at the output end of the pressing cylinder 52, and the pressing cylinder 52 is used for driving the pressing plate 53 to rotate. In the present embodiment, the pressing assemblies 50 are four in number, and are respectively disposed on both sides of both ends of the self-centering assembly 30 in a pair-to-pair opposing manner, and the pressing plates 53 of the pressing assemblies 50 in the pair-to-pair opposing manner are rotated in a relative rotation direction. The hold-down cylinder 52 is a lever cylinder, and a guide bracket 54 is further disposed on a side surface of the hold-down bracket 51 to facilitate clamping of the axle housing workpiece.

Referring to fig. 7, in the present embodiment, the second clip member 200 includes a second base 70, second supports 210 oppositely disposed at two ends of the second base 70, and an intermediate positioning assembly 80 disposed at a middle portion of the second base 70, wherein the two second supports 210 and the intermediate positioning assembly 80 are located on the same axis, and an angular positioning assembly 90 is disposed on each second support 210. In addition, the second clamping member 200 further includes two pairs of auxiliary supporting members 220, the two pairs of auxiliary supporting members 220 are respectively symmetrically disposed at two ends of the middle positioning member 80, and the two pairs of auxiliary supporting members 220 are located between the two second supporting seats 210; the two pairs of auxiliary support assemblies 220, the two second supports 210 and the intermediate positioning assembly 80 are located on the same axis.

As shown in fig. 8 and 9, the middle positioning assembly 80 includes a circular supporting seat 81 disposed on the second base 70, a circular supporting ring 82 disposed on an upper edge of the circular supporting seat 81, and a positioning plate 83 disposed on an upper edge of the circular supporting ring 82, a guiding sleeve 84 is disposed in a cavity structure enclosed by the circular supporting seat 81 and the circular supporting ring 82, a middle pressing corner cylinder 85 is disposed at a bottom of the guiding sleeve 84, a guiding post 86 is disposed at an output end of the middle pressing corner cylinder 85, an upper end of the guiding post 86 penetrates through the positioning plate 83, a pressing plate 87 is disposed at a top of the guiding post, and an arc cushion block 88 is further disposed on an upper edge of the positioning plate 83.

As shown in fig. 10, the angular positioning assembly 90 of the present embodiment includes an angular cylinder 91 and an angular plate 92, the angular cylinder 91 is disposed in the second support 210, the angular plate 92 is disposed at an output end of the angular cylinder 91, and the angular cylinders 91 of the angular positioning assembly 90 respectively push the angular plates 92 to move toward the intermediate positioning assembly 80; in this embodiment, the angular flat plate 92 is slidably connected to the second support 210 through an angular guide pillar 93, an angular guide sleeve 94 is disposed on the second support 210, one end of the angular guide pillar 93 is fixed to the angular flat plate 92, and the other end is slidably disposed in the angular guide sleeve 94. Two sides of the top of the second support 210 are respectively provided with a left oil cylinder 211 and a right oil cylinder 212 outwards, and the output ends of the left oil cylinder 211 and the right oil cylinder 212 are respectively provided with a left pressing block 213 and a right pressing block 214.

The auxiliary supporting assembly 220 comprises a left mounting seat 221 and a right mounting seat 222 which are arranged oppositely, a connecting line of the left mounting seat 221 and the right mounting seat 222 is perpendicular to an axis of the middle positioning assembly 80, a left auxiliary supporting oil cylinder 223 and a right auxiliary supporting oil cylinder 224 are respectively arranged on the left mounting seat 221 and the right mounting seat 222 in a relatively inclined manner, protective cover plates 225 are respectively arranged on the outer surfaces of the left auxiliary supporting oil cylinder 223 and the right auxiliary supporting oil cylinder 224, a through hole is formed in the middle of each protective cover plate 225, and output ends of the left auxiliary supporting oil cylinder 223 and the right auxiliary supporting oil cylinder 224 are telescopically arranged in the through holes of the corresponding protective cover plates 225.

The following description the utility model discloses a drive axle housing anchor clamps's theory of operation:

when the first clamping piece 100 clamps the axle housing workpiece, the axle housing workpiece is guided by the guide bracket 54, so that the axle housing workpiece is smooth, and the clamping time is saved; the axle housing workpiece firstly contacts with a leveling mechanism 40, the leveling mechanism 40 is provided with a floating plane of a floating support plate 42 supported by a guide post 44 and a guide sleeve 43 under the action of the spring force of a pressure spring 45, the supporting force of the floating plane is about 200 kg, the axle housing workpiece is automatically centered after contacting with the floating plane of the floating support plate 42, the seat surface of a plate spring of the axle housing workpiece is parallel to a workbench, but the positioning of other degrees of freedom is not interfered, and the buffering effect of the axle housing workpiece during falling is achieved; the axle housing workpiece is flattened, buffered and then falls into the V-shaped supports at two sides, and 4 degrees of freedom of the axle housing workpiece are limited; the self-centering assembly 30 on the first base 10 is a structure that the symmetrical wedge blocks synchronously push wedge rods on two sides, so that the positioning error caused by inconsistent appearance of the blank can be eliminated, and the axial direction can be accurately positioned; then, the axle housing workpiece is supported in an auxiliary mode through the left auxiliary supporting oil cylinder 38, the right auxiliary supporting oil cylinder 39, the bottom supporting oil cylinder 111 and the side supporting oil cylinder 62 on the side portion at the three positions of the bottom, in the embodiment, the left auxiliary supporting oil cylinder 38, the right auxiliary supporting oil cylinder 39, the bottom supporting oil cylinder 111 and the side supporting oil cylinder 62 are all low-pressure self-locking oil cylinders, the piston rod is enabled to be abutted against the workpiece through smaller spring force, then the self-locking mechanism in the oil cylinders tightly holds the piston rod to generate strong supporting force through oil pressure, the axle housing workpiece cannot be pushed to damage positioning, and the positioning retentivity and the machining rigidity are ensured; finally, the plate spring seat planes on the two sides of the axle housing workpiece are pressed tightly by four pressing oil cylinders 52, the pressing oil cylinders 52 press the workpiece tightly by the lever principle, the pressing plate 53 can avoid the workpiece to be clamped when loosening, and the pressing plate 53 presses the workpiece when clamping, so that vibration is not generated in the machining process; the whole clamping process is not adjusted, workpieces are smoothly loaded, the positioning is accurate and reliable, the clamping rigidity is good, and the requirement of batch production of the products is met.

When the second clamping piece 200 clamps the axle housing workpiece, the lute hole on the axle housing workpiece is guided by a large cone angle when being installed in the middle positioning assembly 80, so that the axle housing workpiece can be quickly and smoothly installed in the positioning disc 83 of the middle positioning assembly 80; the angular positioning assemblies 90 on the two sides push the angular flat plates 92 through the angular oil cylinders 91 to smooth the processing surfaces on the two sides of the axle housing workpiece, the angular guide posts 93 are arranged in the angular guide sleeves 94 in a sliding mode to enable the angular positioning of the axle housing workpiece to be accurate, errors caused by the length of the axle housing workpiece can be avoided, the angular oil cylinders 91 on the two sides can generate large torque to enable the axle housing tool to rotate in place by exerting force simultaneously, meanwhile, the pushing structure occupies small space, the rotary interference of a machine tool workbench is avoided, and the workbench 300 is balanced in stress and beneficial to maintaining the precision; the bottoms of the circular parts at the two ends of the axle housing workpiece are supported in an auxiliary manner through two auxiliary supporting assemblies 220, so that the positioning retentivity and the processing rigidity are ensured; the inner part of the axle housing workpiece pipa hole is provided with a pressing flat plate 87 which is pushed upwards by a middle pressing corner oil cylinder 85 to tightly push against the inner wall of the axle housing workpiece pipa hole; the tops of the circular parts at the two ends of the axle housing workpiece correspondingly push the left pressing block 213 and the right pressing block 214 to be pressed through the left oil pressing cylinder 211 and the right oil pressing cylinder 212, so that no vibration is generated in the machining process; the whole clamping process is not adjusted, the workpiece is smoothly loaded, the positioning is accurate and reliable, and the clamping rigidity meets the requirements of the cutting process.

Wherein the axle housing workpieces machined in the first clamp 100 can be transferred to the second clamp 200 by the lifting tool of the workstation 300.

Compared with the prior art, drive axle housing anchor clamps, carry out continuous processing to the axle housing work piece through first folder and the second folder that sets up on the workstation, carry out lute hole to the axle housing work piece in first folder, the processing in both ends hole, can carry out the plate spring seat to the axle housing work piece of having processed lute hole at the second folder simultaneously, the axle housing work piece in both ends hole, the air vent, the processing of oil drain hole, twice manufacturing procedure can be carried out alternately on crouching with two workstations, and the clamping process of axle housing work piece need not through loaded down with trivial details adjustment, the work piece is packed into smoothly, the location is accurate reliable, the cutting requirement of course of working is satisfied to the clamping rigidity, thereby eliminate the error that many times clamping brought, the machining precision of axle housing work piece has been guaranteed, reduce the processing cost, in order to satisfy the demand of large-scale industrial production.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not intended to be interpreted as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a transaxle axle housing anchor clamps which characterized in that: the clamping device comprises a workbench, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are arranged on two sides of the workbench; the first clamping piece comprises a first base, first supports and a self-centering assembly, wherein the first supports are oppositely arranged at two ends of the first base, the self-centering assembly is arranged in the middle of the first base, a smoothing mechanism is respectively arranged between the two first supports and two ends of the self-centering assembly, the two first supports, the two smoothing mechanisms and the self-centering assembly are positioned on the same axis, and a pair of pressing assemblies are respectively oppositely arranged at two sides of two ports of the self-centering assembly; the second clamping piece comprises a second base, second supports and middle positioning assemblies, the second supports are oppositely arranged at two ends of the second base, the middle positioning assemblies are arranged in the middle of the second base, the two second supports and the middle positioning assemblies are located on the same axis, and each second support is provided with an angular positioning assembly.

2. The drive axle housing fixture of claim 1, wherein: the first clamping piece further comprises a bottom auxiliary supporting seat and a side auxiliary supporting seat, the bottom auxiliary supporting seat is arranged on one side of the self-centering assembly, the supporting direction of the bottom auxiliary supporting seat is perpendicular to the first base, the side auxiliary supporting seat is arranged on one side of the self-centering assembly, and the supporting direction of the side auxiliary supporting seat is parallel to the first base.

3. The drive axle housing fixture of claim 2, wherein: the bottom auxiliary supporting seat comprises a bottom supporting oil cylinder arranged on the first base and a bottom supporting head arranged at the output end of the bottom supporting oil cylinder; the lateral auxiliary supporting seat comprises a lateral supporting frame arranged on the first base, a lateral supporting oil cylinder fixed on the lateral supporting frame and a lateral supporting head arranged at the output end of the lateral supporting oil cylinder.

4. The drive axle housing fixture of claim 1, wherein: the self-centering assembly comprises a left supporting seat, a left wedge rod, a right supporting seat, a right wedge rod, a wedge rod seat, a self-centering wedge rod and a wedge rod oil cylinder; the left supporting seat and the right supporting seat are respectively and oppositely arranged on two sides of the wedge rod seat, the upper ends of the left supporting seat and the right supporting seat are respectively provided with a left auxiliary supporting oil cylinder and a right auxiliary supporting oil cylinder, the lower ends of the left supporting seat and the right supporting seat are respectively provided with a sliding chute, and the far ends of the left wedge rod and the right wedge rod are respectively arranged in the sliding chutes of the left supporting seat and the right supporting seat; the wedge rod oil cylinder is fixed on one side of the wedge rod seat, one end of the self-centering wedge rod is arranged at the output end of the wedge rod oil cylinder, two sides of the other end of the self-centering wedge rod are inclined towards the center, and the opposite ends of the left wedge rod and the right wedge rod respectively abut against the two sides of one end, provided with the inclined surface, of the self-centering wedge rod in a sliding mode.

5. The drive axle housing fixture of claim 1, wherein: the smoothing mechanism comprises a smoothing bottom plate, a floating supporting plate, a guide cylinder, a guide pillar and a pressure spring, the smoothing bottom plate, the floating supporting plate, the guide cylinder, the guide pillar and the pressure spring are arranged on a first base, the bottom of the guide cylinder is fixed on the upper surface of the smoothing bottom plate, the guide pillar is arranged in the guide cylinder, the upper end of the guide pillar penetrates through the floating supporting plate, the pressure spring is sleeved on the guide pillar, and two ends of the pressure spring respectively press against the upper surface of the guide cylinder and the lower surface.

6. The drive axle housing fixture of claim 1, wherein: the pressing assembly comprises a pressing support, a pressing oil cylinder and a pressing plate, the pressing support is arranged on the first base, the pressing oil cylinder is arranged on the pressing support, the pressing plate is arranged at the output end of the pressing oil cylinder, and the pressing oil cylinder is used for driving the pressing plate to rotate.

7. The drive axle housing fixture of claim 1, wherein: the second clamping piece further comprises two pairs of auxiliary supporting assemblies, the two pairs of auxiliary supporting assemblies are symmetrically arranged at two ends of the middle positioning assembly respectively, and the two pairs of auxiliary supporting assemblies are located between the two second supports; the two pairs of auxiliary supporting assemblies, the two second supports and the middle positioning assembly are positioned on the same axis.

8. The drive axle housing fixture of claim 7, wherein: the auxiliary supporting assembly comprises a left mounting seat and a right mounting seat which are arranged oppositely, the line of the left mounting seat and the right mounting seat is perpendicular to the axis of the middle positioning assembly, a left auxiliary supporting oil cylinder and a right auxiliary supporting oil cylinder are respectively arranged on the left mounting seat and the right mounting seat in a relatively inclined mode, protective cover plates are respectively arranged on the outer surfaces of the left auxiliary supporting oil cylinder and the right auxiliary supporting oil cylinder, through holes are formed in the middles of the protective cover plates, and the output ends of the left auxiliary supporting oil cylinder and the right auxiliary supporting oil cylinder are telescopically arranged in the through holes of the corresponding protective cover plates.

9. The drive axle housing fixture of claim 1, wherein: the middle positioning assembly comprises a round supporting seat arranged on the second base, a round supporting ring arranged at the upper edge of the round supporting seat and a positioning disc arranged at the upper edge of the round supporting ring, a guide sleeve is arranged in a cavity structure formed by the round supporting seat and the round supporting ring in a surrounding mode, a middle compression corner oil cylinder is arranged at the bottom of the guide sleeve, a guide column is arranged at the output end of the middle compression corner oil cylinder, the upper end of the guide column penetrates through the positioning disc, a compression flat plate is arranged at the top of the guide column, and an arc cushion block is further arranged at the upper edge of the positioning disc.

10. The drive axle housing fixture of claim 1, wherein: the angular positioning assembly comprises an angular oil cylinder and an angular flat plate, the angular oil cylinder is arranged in the second support, the angular flat plate is arranged at the output end of the angular oil cylinder, and the angular oil cylinder of the angular positioning assembly respectively pushes the angular flat plate to move towards the middle positioning assembly; and the two sides of the top of the second support are respectively and outwardly provided with a left inclined block and a right inclined block, the left inclined block and the right inclined block are respectively and vertically provided with a left pressure oil cylinder and a right pressure oil cylinder, and the output ends of the left pressure oil cylinder and the right pressure oil cylinder are respectively provided with a left pressing block and a right pressing block.