CN112917187A

CN112917187A - Lengthening workbench and clamping equipment with same

Info

Publication number: CN112917187A
Application number: CN202110240271.4A
Authority: CN
Inventors: 吕慧虹; 高敬涵; 于长玖; 李双; 曲行民; 王辉; 傅宝成; 康英杰; 邴丽华; 沈鸿桥; 李宁
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-06-08
Anticipated expiration: 2041-03-04
Also published as: CN112917187B

Abstract

The invention relates to a lengthening workbench and clamping equipment provided with the same, wherein the lengthening workbench comprises: lengthening the bracket; the moving mechanism is supported on the lengthened bracket along a first direction and comprises a plurality of rolling pieces, and the rolling pieces can roll on the lengthened bracket; one end of the lengthened working table surface is supported on the rolling piece along a first direction, and the other end of the lengthened working table surface extends out of the lengthened support along a second direction perpendicular to the first direction. The lengthening workbench can be matched with the main workbench, the length of the main workbench is effectively prolonged, the length of the lengthening workbench surface extending out of the lengthening support can be flexibly adjusted according to the actual length of a machined workpiece, and the machining requirements of the machined workpieces with different lengths are met.

Description

Lengthening workbench and clamping equipment with same

Technical Field

The invention relates to the technical field of machine manufacturing, in particular to a lengthening workbench and clamping equipment with the same.

Background

The axle housing is used as a mounting base body for mounting components such as a main speed reducer, a differential mechanism, a half shaft and the like, is mainly used for supporting and protecting the components such as the main speed reducer, the differential mechanism, the half shaft and the like, is an important component of a drive axle and is one of main components of a running system. The axle housing is typically a rigid hollow beam supported on left and right drive wheels and is connected to the frame or car body by longitudinally disposed leaf springs.

Because the axial length of axle housing is longer, consequently when carrying out milling key groove to the both ends spindle nose of axle housing with man-hour, in order to fix the axle housing well, need support axle housing ground spindle nose department to the length of the workstation of lathe provides higher requirement, and the length of the workstation of current lathe is difficult to satisfy the length requirement of axle housing, consequently has brought great degree of difficulty for the processing of axle housing.

Disclosure of Invention

In view of the above, there is a need for a lengthening table and a clamping device provided with the lengthening table, which can achieve the technical effect of lengthening a machine tool table.

According to an aspect of the application, there is provided a lengthening station comprising:

lengthening the bracket;

the moving mechanism is supported on the lengthened bracket along a first direction and comprises a plurality of rolling pieces, and the rolling pieces can roll on the lengthened bracket;

one end of the lengthened working table surface is supported on the rolling piece along the first direction, and the other end of the lengthened working table surface extends out of the lengthened support along a second direction perpendicular to the first direction.

In one embodiment, the moving mechanism further comprises a moving limiting frame, the moving limiting frame is provided with a plurality of rolling part limiting holes, and each rolling part is correspondingly limited in one rolling part limiting hole.

In one embodiment, the moving mechanism is provided with a moving limiting groove longitudinally extending along the second direction, and the moving mechanism is limited in the moving limiting groove.

According to another aspect of the application, a clamping device is provided, including foretell extension workstation, clamping device still includes main workstation, the extension workstation is located main workstation is in one side on the second direction, the extension workstation face stretches out the one end of extension support is followed first direction support in on the main workstation.

In one embodiment, the clamping device comprises a first support mechanism and a second support mechanism for supporting the workpiece in the first direction, the first support mechanism is arranged on the elongate work table, the second support mechanism is arranged on the main work table, and the first support mechanism and the second support mechanism are arranged at intervals in the second direction.

In one embodiment, the first supporting mechanism is provided with a first limiting groove, and the width of the first limiting groove in the third direction is gradually increased along the direction far away from the lengthening workbench along the first direction;

the second supporting mechanism is provided with a second limiting groove, and the width of the second limiting groove in the third direction is gradually increased in the direction away from the main workbench along the first direction;

wherein the third direction is perpendicular to both the first direction and the second direction.

In one embodiment, the first supporting mechanism includes a first supporting block and a first cushion block, a first limit groove is formed in the first supporting block, and the first cushion block is detachably mounted on a groove wall of the first limit groove to adjust the width of the first limit groove in the third direction;

the second supporting mechanism comprises a second supporting block and a second cushion block, the second limiting groove is formed in the second supporting block, and the second cushion block is detachably mounted on the groove wall of the second limiting groove so as to adjust the width of the second supporting groove in the third direction.

In one embodiment, the clamping device further comprises a pressing device, the pressing device is located on one side of the second supporting mechanism, the pressing device comprises a pressing base and a pressing plate mounted on the pressing base, one end of the pressing plate is located on one side, away from the main workbench, of the second supporting mechanism, and the distance between the pressing plate and the second supporting mechanism in the first direction is adjustable so as to apply pressing force to the workpiece on the second supporting mechanism.

In one embodiment, the pressing device further comprises a pressing plate driving mechanism, the pressing plate driving mechanism is mounted on the pressing base, and the pressing plate driving mechanism is used for driving the pressing plate to rotate around the second direction so as to adjust the distance between the pressing plate and the second supporting mechanism.

In one embodiment, the pressing plate driving mechanism includes a driving member, a wedge rod and a pull rod assembly, one end of the wedge rod is connected to the driving member in a transmission manner, one end of the wedge rod, which is far away from the driving member, extends in a direction perpendicular to the first direction, one end of the pull rod assembly is matched with an inclined surface of one end of the wedge rod, which is far away from the driving member, the other end of the pull rod assembly extends in the first direction and is matched with the pressing plate, the driving member can drive the wedge rod to linearly reciprocate in the direction perpendicular to the first direction, and the pull rod assembly is driven to reciprocate in the first direction by the wedge rod.

In one embodiment, the pull rod assembly includes a pull rod and a pull rod roller, the pull rod extends along the first direction, the pull rod is provided with a pull rod hole extending along the first direction, one end of the wedge away from the driving member is inserted into the pull rod hole, the pull rod roller is rotatably installed in the pull rod hole, and the pull rod roller is matched with the wedge inclined surface.

In one embodiment, one end of the wedge rod, which is far away from the driving piece, is provided with a matching inclined surface towards one side of the pressure plate, and the distance between the matching inclined surface and the pressure plate is gradually increased in the extending direction of the wedge rod, which is far away from the driving piece.

In one embodiment, the matching inclined surface comprises a first inclined section and a second inclined section which are smoothly transited, the second inclined section is positioned on the side, far away from the driving piece, of the first inclined section, and the gradient of the second inclined section is smaller than that of the first inclined section.

In one embodiment, the clamping device further includes an axial positioning mechanism coupled to the pressing base, and the axial positioning mechanism is configured to abut against the workpiece on the second supporting mechanism in the second direction.

In one embodiment, the axial positioning mechanism includes an axial positioning element and an axial positioning adjusting element, one end of the axial positioning element is coupled to the compression base, the other end of the axial positioning element extends toward the first supporting mechanism along the second direction, the axial positioning adjusting element is coupled to one end of the axial positioning element away from the compression base, the axial positioning adjusting element is adjustable in distance relative to the compression base in the second direction, and the axial positioning adjusting element is used for abutting against a workpiece in the second direction.

In one embodiment, the clamping device further comprises a floating flattening mechanism, the floating flattening mechanism is arranged on the lengthened working platform surface, the floating flattening mechanism is located between the first supporting mechanism and the second supporting mechanism, and the floating flattening mechanism is used for floating and supporting the workpiece.

In one embodiment, the floating smoothing mechanism comprises a floating smoothing base, a smoothing elastic member and a floating smoothing assembly, the floating smoothing base is installed on the lengthened working table surface, a smoothing member installation groove is formed in the floating smoothing base, one end of the floating smoothing assembly is contained in the smoothing member installation groove, the other end of the floating smoothing assembly protrudes out of the smoothing member installation groove along the first direction, one end of the smoothing elastic member abuts against the floating smoothing base, the other end of the smoothing elastic member abuts against the floating smoothing assembly, and the smoothing elastic member can generate recoverable deformation in the first direction.

The lengthening workbench can be matched with the main workbench, the length of the main workbench is effectively prolonged, the length of the lengthening workbench surface extending out of the lengthening support can be flexibly adjusted according to the actual length of a machined workpiece, and the machining requirements of the machined workpieces with different lengths are met.

Drawings

FIG. 1 is a schematic structural diagram of a clamping apparatus according to an embodiment of the present invention;

FIG. 2 is a top view of the clamping device shown in FIG. 1;

FIG. 3 is a schematic diagram of a portion of the structure of a lengthening table according to one embodiment of the invention;

FIG. 4 is a schematic structural view of a main body of a movement limiting frame of the moving mechanism of the lengthening worktable shown in FIG. 3;

FIG. 5 is a schematic view of an elongated work surface of the additive work table of FIG. 3;

FIG. 6 is a schematic structural diagram of a first supporting mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic view of a second support structure and hold-down device according to an embodiment of the present invention;

FIG. 8 is a schematic view of the wedge of the compression apparatus shown in FIG. 7;

FIG. 9 is a schematic view of another angular configuration of the wedge rod of FIG. 8;

FIG. 10 is a schematic view of the pull rod of the compression device of FIG. 7;

fig. 11 is a schematic structural diagram of a floating leveling mechanism according to an embodiment of the present invention.

The reference numbers illustrate:

100. a clamping device; 10. a lengthening workbench; 12. lengthening the bracket; 121. lengthening the stent main body; 123. anchor screws; 125. a movable limiting mechanism; 1252. a base plate; 1254. a baffle plate; 14. a moving mechanism; 141. moving the limiting frame; 1412. moving the limiting frame main body; 1412a, a rolling element limiting hole; 1414. moving the limiting frame supporting piece; 143. a rolling member; 145. an auxiliary rolling member; 16. lengthening the working table; 161. lengthening a key groove of the workbench; 163. lengthening a workbench fixing hole; 20. a first support mechanism; 21. a first support block; 212. a first limit groove; 23. a first cushion block; 25. a first orientation key; 30. a second support mechanism; 32. a second support block; 321. a second limit groove; 34. a second cushion block; 36. a second orientation key; 40. a pressing device; 41. pressing the base; 43. a platen mount; 45. a pressure plate elastic member; 47. pressing a plate; 472. a pull rod limiting groove; 49. a platen drive mechanism; 492. a drive member; 494. a wedge rod; 4941. a mating bevel; 4941a, a first inclined section; 4941b, a second inclined section; 496. a drawbar assembly; 4961. a pull rod; 4961a, a tie rod hole; 4963. a pull rod roller; 4965. supporting a nail; 497. a pull rod elastic member; 498. a reset lever; 50. an axial positioning mechanism; 52. an axial positioning member; 54. an axial positioning adjustment member; 60. a floating smoothing mechanism; 61. a floating smoothing base; 63. smoothing the elastic piece; 65. a floating smoothing assembly; 652. a floating smoothing member; 654. floating the smoothing plate; 67. a smoothing piece limit screw; 900. and (4) an axle housing.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and 2, an embodiment of the present invention provides a clamping apparatus 100 for clamping a workpiece, especially a workpiece with a long axial dimension, so as to facilitate the processing of the workpiece by the processing apparatus. In particular, in the following embodiments, the clamping apparatus 100 is used to clamp an axle housing 900 of a vehicle to facilitate the machining apparatus in the keyway machining of the stub shafts of the axle housing 900. It is understood that in other embodiments, the clamping device 100 may be used to process other types of workpieces, and is not limited thereto.

The clamping apparatus 100 includes a main table (not shown) and a lengthening table 10, the lengthening table 10 is located at one side of the main table, the main table and the lengthening table 10 clamp the axle housing 900 together, the lengthening table 10 effectively extends the length of the main table, and thus the problem that the length of the main table is insufficient due to the overlong length of the axle housing 900 is solved. It should be noted that the specific structure of the main table is not the main point of the present application, and therefore, is not described herein.

The extension table 10 includes an extension bracket 12, a moving mechanism 14, and an extension table top 16. The lengthening support 12 is supported on mounting surfaces such as the ground, one end of the lengthening working platform 16 is supported on the lengthening support 12 through the moving mechanism 14, the lengthening working platform 10 can move relative to the lengthening support 12 through the moving mechanism 14, the other end of the lengthening working platform 16 extends out of the lengthening support 12 to be supported on the main working platform, the length of the main working platform is prolonged, the length of the lengthening working platform 16 extending out of the lengthening support 12 can be flexibly adjusted according to the actual length of the axle housing 900, and therefore the processing requirements of axle housings 900 with different lengths are met.

Specifically, the extension bracket 12 includes an extension bracket body 121, an anchor screw 123, and a movement limiting mechanism 125.

The extension bracket body 121 is a cubic frame structure formed by welding metal materials, the height direction of the extension bracket body 121 is a first direction (i.e., the vertical direction in fig. 1) in the following embodiment, the length direction of the extension bracket body 121 is a second direction (i.e., the horizontal direction in fig. 1) in the following embodiment, and the width direction of the extension bracket body 121 is a third direction (i.e., the direction perpendicular to the screen in fig. 1) in the following embodiment.

A plurality of anchor screws 123 are installed at the bottom of the extension bracket body 121 to play a supporting role, and the connection length of the anchor screws and the extension bracket body 121 is adjustable. In this way, the operator can adjust the overall height of the extension bracket 12 by adjusting the connection length of the anchor screws 123 and the extension bracket main body 121. Specifically, in some embodiments, the extension bracket 12 includes four anchor screws 123, and the four anchor screws 123 are respectively disposed at four top corners of the extension bracket body 121. It can be understood that the number of the anchor screws 123 is not limited, and can be set as required to meet different requirements.

Referring to fig. 1 and 3, the movement limiting mechanism 125 includes a pad 1252 and a baffle 1254. The backing plate 1252 is of a rectangular plate-shaped structure, the backing plate 1252 is supported at the top end of the elongated bracket body 121 in the first direction, and the baffle plate 1254 encloses the edge of the backing plate 1252 and protrudes out of a side surface of the backing plate 1252 away from the elongated bracket body 121 in the first direction. Thus, the pad 1252 and the baffle 1254 together define a movement limiting groove for limiting the movement of the movement mechanism 14, the movement limiting groove has a rectangular cross section perpendicular to the first direction, and the movement limiting groove extends lengthwise in the second direction.

The moving mechanism 14 is supported on the pad 1252 of the movement limiting mechanism 125 in the first direction, and the moving mechanism 14 includes a movement limiting frame 141, a plurality of rolling members 143, and a plurality of auxiliary rolling members 145.

Specifically, the movable limit frame 141 is limited in the movable limit groove of the movable limit mechanism 125, the movable limit frame 141 includes a movable limit frame main body 1412 and a movable limit frame support 1414, the movable limit frame main body 1412 is a rectangular plate-shaped structure, the size of the movable limit frame main body 1412 in the second direction is smaller than that of the movable limit groove in the second direction, and the size of the movable limit frame main body 1412 in the third direction is matched with that of the movable limit groove in the third direction. The movable limiting frame support 1414 circumferentially surrounds the edge of the movable limiting frame 141 and is disposed on one side of the movable limiting frame main body 1412 facing the elongated bracket main body 121, and the movable limiting frame support 1414 is fixedly connected to the movable limiting frame main body 1412 through screws.

Thus, the movable limiting frame 141 can only move in the second direction under the limitation of the movable limiting groove, and the movable limiting frame body 1412 is supported on the pad plate 1252 through the movable limiting frame support 1414, and the movable limiting frame body 1412 can always keep a preset distance from the pad plate 1252.

Further, as shown in fig. 3 and 4, a plurality of rolling element limiting holes 1412a are formed in the movable limiting frame body 1412, the plurality of rolling element limiting holes 1412a are arranged in a matrix, a central axis of each rolling element limiting hole 1412a extends along a first direction, each spherical rolling element 143 is correspondingly limited in one rolling element limiting hole 1412a, one end of each rolling element 143 in the first direction is supported on the base plate 1252 of the movable limiting mechanism 125, and the other end of each rolling element 143 in the first direction abuts against the lengthened working table 10. The movable limiting frame support 1414 is provided with a plurality of auxiliary rolling limiting holes in a penetrating manner, the central axis of each auxiliary rolling limiting hole extends along a first direction, each spherical auxiliary rolling member 145 is correspondingly limited in one rolling member limiting hole 1412a, and one end of each auxiliary rolling member 145 in the first direction extends out of the rolling member limiting hole 1412a and is supported on the base plate 1252 of the movable limiting mechanism 125.

Therefore, the rolling elements 143 can roll in the movable limiting grooves, and the movable limiting frame body 1412 limits the rolling elements 143, so that the rolling elements 143 are always kept in a preset arrangement mode in the rolling process. Also, the auxiliary rolling member 145 may roll in the auxiliary rolling restricting hole 1412a, thereby preventing the friction between the movement restricting frame support 1414 and the pad plate 1252 from being too large to affect the movement of the movement restricting frame 141.

As shown in fig. 1, 3 and 5, one end of the lengthened work table 16 is supported on the plurality of rolling members 143 along the first direction, the other end of the lengthened work table 16 protrudes out of the lengthened support 12 along the second direction, and one end of the lengthened work table 16 far away from the protruded lengthened support 12 is provided with a lengthened work table key slot 161 and a lengthened work table fixing hole 163. The main workbench is positioned on one side of the lengthening workbench 10 in the second direction, and one end of the lengthening workbench surface 16 of the lengthening workbench 10, which extends out of the lengthening support 12, is supported on the main workbench along the first direction.

In this manner, when the elongated work surface 16 is supported on the main work table and moved to the target position, the elongated work surface 16 can be positioned relative to the main work table by the elongated work table key slot 161, and then the elongated work surface 16 can be fixed to the main work table by the elongated work table fixing hole 163.

Referring to fig. 1, 6 and 7, further, in order to fix the axle housing 900, the clamping apparatus 100 further includes first and second supporting

mechanisms

20 and 30 for supporting the workpiece in the first direction. The first support mechanism 20 is provided on the elongated work table 16, the second support mechanism 30 is provided on the main work table, and the first support mechanism 20 and the second support mechanism 30 are provided at an interval in the second direction. In this manner, both ends in the axial direction of the axle housing 900 are supported on the first support mechanism 20 and the second support mechanism 30, respectively.

Specifically, as shown in fig. 6, the first support mechanism 20 includes a first support block 21 and a first block 23. The first supporting block 21 is connected to the lengthened working table surface 16 in a matching mode through the first orientation key 25, the first supporting block 21 is provided with a first limiting groove 212, the cross section of the first limiting groove 212 perpendicular to the second direction is approximately V-shaped, the width of the first limiting groove 212 in the third direction is gradually increased in the direction away from the lengthened working table 10 along the first direction, and the first cushion block 23 is detachably mounted on the groove wall of the first limiting groove 212, so that the width of the first limiting groove 212 in the third direction can be adjusted.

Thus, one end of the axle housing 900 is retained in the first retaining groove 212 and automatically locates the axle center through the first retaining groove 212. Moreover, since the width of the first stopper groove 212 in the third direction can be adjusted by replacing the first spacer block 23 of different size and shape, the positioning requirements of the axle housings 900 of different shape and size can be satisfied by replacing the first spacer block 23.

The second supporting mechanism 30 includes a second supporting block 32 and a second cushion block 34, the second supporting block 32 is provided with a second limiting groove 321, the cross section of the second limiting groove 321 perpendicular to the second direction is substantially V-shaped, the width of the second limiting groove 321 in the third direction is gradually increased in the direction away from the lengthening worktable 10 along the first direction, and the second cushion block 34 is detachably mounted on the groove wall of the second limiting groove 321, so that the width of the second limiting groove 321 in the third direction can be adjusted.

Thus, one end of the axle housing 900 is limited in the second limiting groove 321 and automatically locates the axle center through the second limiting groove 321. Moreover, since the width of the second stopper groove 321 in the third direction can be adjusted by replacing the first spacer block 23 of different size and shape, the positioning requirements of the axle housings 900 of different shape and size can be satisfied by replacing the first spacer block 23.

As shown in fig. 1 and 7, in order to further fix the axle housing 900, the clamping apparatus 100 further includes a pressing device 40, the pressing device 40 is mounted on the main table and located on one side of the second supporting mechanism 30 in the third direction, and the pressing device 40 is engaged with the second supporting mechanism 30 to apply a pressing force acting in the first direction to the axle housing 900 on the second supporting mechanism 30, thereby pressing the axle housing 900 against the second supporting mechanism 30.

Specifically, the pressing device 40 includes a pressing base 41, a pressing plate mounting member 43, a pressing plate elastic member 45, a pressing plate 47, and a pressing plate driving mechanism 49.

The pressing base 41 is mounted on the main table, and the pressing base 41 has a substantially cubic structure. The second supporting mechanism 30 is mounted on the top end of the pressing base 41. The clamp plate installed part 43 is a stud, one end of the clamp plate installed part 43 is inserted into the top end of the pressing base 41 and fixed to the pressing base 41 through bolts, the other end of the clamp plate installed part 43 extends in the direction away from the main workbench along the first direction, and the clamp plate installed part 43 is provided with an installation boss extending along the circumferential direction. The pressing plate elastic part 45 is a spring capable of generating restorable elastic deformation, the pressing plate installation part 43 is sleeved with the pressing plate elastic part 45, and one end of the pressing plate elastic part 45 is abutted to one side, away from the main workbench, of the installation boss. The pressing plate 47 extends lengthwise along the third direction, the middle part of the pressing plate 47 is inserted into the pressing plate mounting part 43, one side of the pressing plate 47 facing the main workbench abuts against the pressing plate elastic part 45, one side of the pressing plate 47 facing away from the main workbench abuts against a bolt at one end of the pressing plate mounting part 43 far away from the main workbench, and one end of the pressing plate 47 in the third direction is located at one side of the second supporting mechanism 30 far away from the main workbench. In this way, the pressing plate 47 can be rotatably mounted to the pressing base 41 about the second direction by the cooperation of the pressing plate elastic member 45 capable of generating recoverable deformation, so as to adjust the distance between one end of the pressing plate in the third direction and the second supporting mechanism 30.

The platen driving mechanism 49 is mounted to the pressing base 41, and the platen driving mechanism 49 is used for driving the platen 47 to rotate, thereby adjusting the distance of the platen 47 relative to the second supporting mechanism 30. Specifically, the platen drive mechanism 49 includes a driver 492, a wedge 494, and a pull rod assembly 496.

The wedge rod 494 is inserted into the pressing base 41 along the third direction, one end of the pull rod assembly 496 is inserted into the pressing base 41 along the first direction and is matched with the inclined surface of the wedge rod 494, and the other end of the pull rod assembly 496 extends out of the pressing base 41 to be matched with the pressing plate 47. The push-pull force output by the driving member 492 and reciprocating in the third direction is converted into a reciprocating motion by the wedge rod 494 and the pull rod assembly 496 and reciprocating in the first direction, thereby controlling the pressure plate 47 to rotate in the second direction.

Specifically, the driving member 492 is a cylinder having a piston rod, the driving member 492 is coupled to one side of the pressing base 41 in the third direction, and the piston rod of the driving member 492 extends into the pressing base 41 in the third direction. One end of the wedge rod 494 is clamped to the piston rod of the driving member 492, one end of the wedge rod 494, which is far away from the driving member 492, extends in the third direction, one side of the wedge rod 494, which is far away from the main table, has a fitting slope 4941, and the distance of the fitting slope 4941 relative to the pressure plate 47 gradually increases in the extending direction of the wedge rod 494, which is far away from the driving member 492.

Specifically, referring to fig. 8 and 9, the mating ramp 4941 of the wedge rod 494 includes a smoothly transitioning first sloped segment 4941a and a second sloped segment 4941b, the second sloped segment 4941b is located on a side of the first sloped segment 4941a away from the driver 492, and the slope of the first sloped segment 4941a is less than the slope of the second sloped segment 4941 b. Preferably, the first inclined segment 4941a is inclined at an angle α of 8 ° with respect to the first direction, and the second inclined segment 4941b is inclined at an angle β of 20 ° with respect to the first direction. Since the slope of the second sloped section 4941b is greater than the slope of the first sloped section 4941a, there is a quick dump action to improve the disassembly efficiency.

As shown in fig. 7 and 10, the pull rod assembly 496 includes a pull rod 4961, a pull rod roller 4963, and a support pin 4965, wherein one end of the pull rod 4961 is inserted into the pressing base 41, the other end of the pull rod 4961 extends in a direction away from the pressing base 41 along a first direction, the support pin 4965 is coupled to one end of the pull rod 4961 away from the pressing base 41, a pull rod hole 4961a is formed at one end of the pull rod 4961 inserted into the pressing base 41, and a central axis of the pull rod hole 4961a extends in a second direction. An end of the wedge rod 494, which is far from the driving member 492, passes through the pull rod hole 4961a in the third direction, the pull rod roller 4963 is rotatably installed in the pull rod hole 4961a in the third direction, and an outer circumferential surface of the pull rod roller 4963 can abut against the first inclined section 4941a and the second inclined section 4941b to be matched with the inclined surface of the wedge rod 494.

In this manner, one end of the pull rod assembly 496 is engaged with an end bevel of the driving member 492 via the pull rod roller 4963, and the driving member 492 can drive the wedge rod 494 to reciprocate in the third direction, and the pull rod assembly 496 can be driven to reciprocate in the first direction by the wedge rod 494.

Specifically, when it is desired to compact the axle housing 900, the driver 492 pushes the wedge rod 494 to the right in fig. 8, and the first inclined section 4941a of the wedge rod 494 pushes the tie rod roller 4963 to move upward in the first direction, which in turn drives the tie rod assembly 496 to move upward in the first direction. When it is desired to release the axle housing 900, the driver 492 pulls the wedge rod 494 to the seating side in fig. 8, and the pull rod roller 4963 follows the second inclined section 4941 to move downward in the first direction, thereby driving the pull rod assembly 496 to move downward in the first direction, and finally eliminating the pressing force applied to the axle housing 900 by the pressing device 40.

In some embodiments, the pulling rod assembly 496 further includes a pulling rod elastic member 497, the pulling rod elastic member 497 is accommodated in the pressing base 41 and sleeved on the pulling rod 4961, a position-limiting boss extending along the circumferential direction is protruded from an outer circumferential surface of the pulling rod 4961, and one end of the pulling rod elastic member 497 abuts against the position-limiting boss. As such, the pull rod resilient member 497 may apply a force to the pull rod 4961 to dampen the reciprocating motion of the pull rod 4961.

In some embodiments, a pull rod limiting groove 472 is formed at a side of the end of the press plate 47 away from the second supporting mechanism 30 and facing the press plate driving mechanism 49, the pull rod limiting groove 472 extends lengthwise along the third direction, and an end of the support pin 4965 of the pull rod assembly 496 is limited in the pull rod limiting groove 472 and moves along the pull rod limiting groove 472.

Further, with reference to fig. 8, the pressing plate driving mechanism 49 further includes a reset bar 498, and the reset bar 498 is inserted into an end of the pressing plate 47 away from the second supporting mechanism 30. When the force applied to the pressure plate 47 by the pressure plate drive mechanism 49 is removed, the user operates the reset lever 498 to rotate the pressure plate 47 to release the axle housing 900.

In some embodiments, as shown in fig. 1, the clamping apparatus 100 further includes an axial positioning mechanism 50, the axial positioning mechanism 50 is coupled to the pressing base 41, and the axial positioning mechanism 50 is configured to abut against a flange surface of the axle housing 900 in the second direction, so as to position the axle housing 900 in the second direction.

Specifically, in some embodiments, the axial positioning mechanism 50 includes an axial positioning member 52 and an axial positioning adjustment member 54. One end of the axial positioning element 52 is coupled to the pressing base 41, the other end of the axial positioning element 52 extends toward the first supporting mechanism 20 along the first direction, one end of the axial positioning element 52 away from the second supporting mechanism 30 bends and extends toward the direction away from the main workbench along the first direction, the axial positioning adjusting element 54 is coupled to one end of the axial positioning element 52 away from the pressing base 41, the central axis of the axial positioning adjusting element 54 extends along the second direction, the distance between the axial positioning adjusting element 54 and the pressing base 41 is adjustable, and the axial positioning mechanism 50 is used for abutting against a workpiece in the first direction.

As shown in fig. 1 and 11, the clamping apparatus 100 further includes a floating leveling mechanism 60, the floating leveling mechanism 60 is disposed on the lengthened work table 16, the floating leveling mechanism 60 is located between the first supporting mechanism 20 and the second supporting mechanism 30, and the floating leveling mechanism 60 is used for floating and supporting the axle housing 900, so as to ensure that the axle housing 900 is in a horizontal state, and thus the axle housing 900 is more balanced in placement.

Specifically, the floating screed mechanism 60 includes a floating screed base 61, a screed spring 63, and a floating screed assembly 65, the floating screed assembly 65 including a floating screed 652 and a floating screed 654. Float and smooth base 61 and install in extension table surface 16, float and smooth base 61 and seted up and smooth a mounting groove, smooth the central axis of a mounting groove and extend along first direction. One end of the floating smoothing member 652 is received in the smoothing member mounting slot, the other end of the floating smoothing member 652 protrudes out of the smoothing member mounting slot along the first direction, the floating smoothing plate 654 is coupled to the end of the floating smoothing member 652 protruding out of the smoothing member mounting slot, and the floating smoothing plate 654 extends lengthwise along the third direction to abut against the axle housing 900. One end of the smoothing elastic member 63 abuts against the floating smoothing base 61, the other end of the smoothing elastic member 63 abuts against the floating smoothing member 652, and the smoothing elastic member 63 can be deformed in a first direction in a restorable manner. In this manner, the axle housing 900 may be supported on a floating spreader plate 654, and the floating spreader mechanism 60 automatically adjusts its position relative to the axle housing 900 under the influence of the spreader springs 63 and the axle housing 900.

Further in some embodiments, the floating smoothing mechanism 60 further includes a smoothing member limiting screw 67, the smoothing member limiting screw 67 is inserted into the inner side wall of the floating smoothing base 61 and protrudes out of the smoothing member mounting groove, a smoothing member limiting groove is formed in the outer wall of the floating smoothing member 652, the floating member limiting groove extends along the first direction, and the smoothing member limiting screw 67 extends into the smoothing member limiting groove along the second direction. As such, the screed limit screw 67 may limit the range of motion of the floating screed 652 in the first direction.

The lengthening workbench 10 and the clamping device 100 provided with the lengthening workbench 10 are independent of the main workbench, can lengthen the working area as required, and can be flexibly disassembled as required, so that the lengthening workbench has high universality. The lengthening workbench 10 can flexibly adjust the relative position relation with the main workbench through the arrangement of the moving mechanism 14, and the clamping requirements of axle housings 900 of different models are met. In addition, the pressing plate driving mechanism 49 can convert the driving force output by the driving piece 492 into a pressing force for pressing the axle housing 900, and can expand the acting force output by the driving piece 492, so that the axle housing 900 during processing is clamped more firmly, and the processing quality and the processing efficiency are effectively improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A lengthening table, comprising:

lengthening the bracket;

2. The lengthening workbench according to claim 1, wherein the moving mechanism further comprises a moving limiting frame, the moving limiting frame is provided with a plurality of rolling member limiting holes, and each rolling member is correspondingly limited in one rolling member limiting hole.

3. The lengthening table of claim 1, wherein the moving mechanism defines a moving-limiting groove extending lengthwise in the second direction, and the moving mechanism is limited in the moving-limiting groove.

4. A holding apparatus comprising the lengthening table according to any one of claims 1 to 3, further comprising a main table located on one side of the main table in the second direction, wherein an end of the lengthening table, which extends out of the lengthening bracket, is supported on the main table in the first direction.

5. A holding apparatus according to claim 4, comprising first and second support means for supporting a workpiece in said first direction, said first support means being provided on said elongate work table and said second support means being provided on said main table, said first and second support means being spaced apart in said second direction.

6. The clamping device according to claim 5, wherein the first supporting mechanism is provided with a first limiting groove, and the width of the first limiting groove in the third direction is gradually increased along the direction away from the lengthening workbench along the first direction;

7. The clamping apparatus of claim 6, wherein the first supporting mechanism comprises a first supporting block and a first cushion block, a first limiting groove is formed in the first supporting block, and the first cushion block is detachably mounted on a groove wall of the first limiting groove to adjust the width of the first limiting groove in the third direction;

8. The clamping apparatus of claim 5 further comprising a hold-down device positioned on a side of said second support mechanism, said hold-down device comprising a hold-down base and a hold-down plate mounted to said hold-down base, said hold-down plate having an end positioned on a side of said second support mechanism remote from said main table, said hold-down plate being adjustable in said first direction relative to said second support mechanism to apply a hold-down force to a workpiece on said second support mechanism.

9. The clamping apparatus of claim 8, wherein the clamping device further comprises a platen drive mechanism mounted to the clamping base, the platen drive mechanism configured to drive the platen in the second direction to adjust the distance of the platen relative to the second support mechanism.

10. The clamping apparatus as claimed in claim 9, wherein the pressing plate driving mechanism includes a driving member, a wedge rod and a pull rod assembly, one end of the wedge rod is connected to the driving member in a transmission manner, one end of the wedge rod away from the driving member extends in a direction perpendicular to the first direction, one end of the pull rod assembly is matched with an inclined surface of one end of the wedge rod away from the driving member, the other end of the pull rod assembly extends in the first direction and is matched with the pressing plate, and the driving member can drive the wedge rod to reciprocate linearly in the direction perpendicular to the first direction and drive the pull rod assembly to reciprocate in the first direction by means of the wedge rod.

11. The clamping apparatus as claimed in claim 10, wherein the pull rod assembly includes a pull rod and a pull rod roller, the pull rod extends along the first direction, the pull rod is provided with a pull rod hole extending along the first direction, an end of the wedge away from the driving member is inserted into the pull rod hole, the pull rod roller is rotatably mounted in the pull rod hole, and the pull rod roller is engaged with the wedge inclined surface.

12. Clamping apparatus according to claim 10 wherein the end of the wedge lever remote from the drive member has an engagement ramp towards the pressure plate, and the engagement ramp is at progressively increasing distance from the pressure plate in the direction of extension of the wedge lever remote from the drive member.

13. The clamping apparatus of claim 12 wherein said mating ramp includes smoothly transitioning first and second sloped sections, said second sloped section being on a side of said first sloped section remote from said drive member, said second sloped section having a slope greater than a slope of said first sloped section.

14. The clamping apparatus of claim 8 further comprising an axial positioning mechanism coupled to the clamping base, the axial positioning mechanism configured to hold the workpiece on the second support mechanism in the second direction.

15. The clamping apparatus as claimed in claim 14, wherein the axial positioning mechanism comprises an axial positioning element and an axial positioning adjustment element, one end of the axial positioning element is coupled to the compression base, the other end of the axial positioning element extends toward the first supporting mechanism along the second direction, the axial positioning adjustment element is coupled to one end of the axial positioning element away from the compression base, the axial positioning adjustment element has an adjustable distance in the second direction with respect to the compression base, and the axial positioning adjustment element is configured to abut against the workpiece in the second direction.

16. The clamping apparatus of claim 5 further comprising a floating smoothing mechanism disposed on the elongated work surface between the first and second support mechanisms, the floating smoothing mechanism for floatingly supporting a workpiece.

17. The clamping apparatus as claimed in claim 16, wherein the floating smoothing mechanism includes a floating smoothing base, a smoothing elastic member, and a floating smoothing assembly, the floating smoothing base is mounted on the extended working platform, the floating smoothing base is provided with a smoothing member mounting groove, one end of the floating smoothing assembly is received in the smoothing member mounting groove, the other end of the floating smoothing assembly protrudes out of the smoothing member mounting groove along the first direction, one end of the smoothing elastic member abuts against the floating smoothing base, the other end of the smoothing elastic member abuts against the floating smoothing assembly, and the smoothing elastic member can generate recoverable deformation in the first direction.