Automobile drive axle production fixing tool

Abstract

The application relates to the technical field of automobile production and discloses a fixing tool for automobile drive axle production, which comprises a double slide rail part and two support frame assemblies slidably installed thereon, each support frame assembly is provided with a side pushing positioning assembly at the top and is used for supporting and fastening a drive axle body. The side pushing positioning assembly comprises a supporting plate and two side pushing execution components, the supporting plate is fastened with positioning lugs of the drive axle through bolts, the side pushing execution components are rotationally connected to the two sides of the supporting plate and are linked with side pushing driving assemblies on the double slide rail part. A center plate and a synchronous connecting assembly are arranged in the middle of the double slide rail part, so that the two support frame assemblies are synchronously and reversely moved and are symmetrically positioned. The tool automatically corrects the axial position of the drive axle through the side pushing execution components, realizes rapid centering, enhances the stability through bolt fastening, effectively prevents displacement or falling during machining, the design simplifies the adjusting process, improves the clamping precision and efficiency and is suitable for the fixing requirements of drive axles with different sizes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile production, and in particular to a fixing tool for automobile drive axle production. BACKGROUND

[0002] The automobile drive axle is an essential component of the automobile, and its basic function is to increase the torque transmitted from the transmission shaft or the transmission, and to reasonably distribute the power to the left and right drive wheels. In addition, it also bears the vertical force, longitudinal force and lateral force acting between the road surface and the frame or the vehicle body.

[0003] In the production process of the automobile drive axle, the fixing tool needs to adapt to the size changes of different models of drive axles and ensure the positioning accuracy and stability during processing. The traditional tooling mostly uses manual adjustment or single clamps, which has problems such as complicated adjustment, poor symmetry, inaccurate positioning, etc., which easily leads to processing errors or workpiece falling off. In addition, the existing technology lacks an automatic centering mechanism and relies on manual calibration, which is low in efficiency. Therefore, there is an urgent need for a drive axle production tooling that can automatically adjust, synchronize positioning and firmly fix, to meet the processing requirements of high precision and high efficiency. SUMMARY

[0004] The purpose of the present application is to provide a fixing tool for automobile drive axle production to solve the technical problems existing in the prior art.

[0005] To solve the above technical problems, the present application provides a fixing tool for automobile drive axle production, which comprises a double slide rail part and two support frame assemblies slidably installed on the double slide rail part. Each support frame assembly is provided with a side pushing positioning assembly at the top, which is used to support and fasten the drive axle body. The side pushing positioning assembly comprises a supporting plate and two side pushing execution components. The supporting plate is slidably arranged on the top of the support frame assembly on both sides, and the side of the supporting plate can be fastened together with the positioning lug on the drive axle body through a fastening bolt. The two side pushing execution components are symmetrically arranged on both sides of the supporting plate. The lower end of the side pushing execution component extends to the lower side of the supporting plate and is connected with the side pushing drive assembly arranged on the double slide rail part. The side pushing execution component rotating around the connection between the supporting plate and the supporting plate can act on the positioning force receiving part arranged on the drive axle body to make the supporting plate slide relative to the top of the support frame assembly. The center plate is arranged at the middle position of the double slide rail part, and the synchronous connection assembly is arranged on the center plate. The two ends of the synchronous connection assembly are connected with the bottoms of the two support frame assemblies respectively. The synchronous connection assembly can make the two support frame assemblies move synchronously and in opposite directions along the double slide rail part.

[0006] On the basis of the above technical scheme, the present application further provides the following optional technical schemes:

[0007] In an alternative: the support frame assembly includes a chassis part and two support frame parts, the chassis part is slidably arranged on the double slide rail part, the bottom of the chassis part is connected to one end of the synchronous connection assembly, the two support frame parts are symmetrically arranged on the upper end face of the chassis part, the two hollow connection parts are slidably connected to the two sides of the supporting plate, and one side of the chassis part is also provided with a blocking assembly.

[0008] In an alternative: the top of the support frame part has a supporting slide rail part, the two sides of the supporting plate are provided with hollow connection parts, and the bottom surface of the hollow connection part is provided with a clamping seat part which can be slid and buckled on the supporting slide rail part; the hollow connection part has a plurality of equidistantly distributed mounting holes which penetrate the hollow connection part.

[0009] In an alternative: the outer side of the hollow connection part has a side support, the side pushing execution part includes an upper supporting arm, a side pushing action block and a lower supporting arm, the upper supporting arm and the lower supporting arm are connected in one body and are rotationally connected with the side support, the side pushing action block is arranged at the end of the upper supporting arm away from the side support and the end face of the side pushing action block facing the other side pushing positioning assembly is a bevel surface; the bottom of the supporting plate is provided with a side pushing transmission part, and the end of the lower supporting arm away from the side support extends to the side pushing transmission part and is connected thereto; the side pushing transmission part is connected with the side pushing driving assembly.

[0010] In an alternative: the side pushing driving assembly includes an end shaft part and a long gear shaft, the two ends of the end shaft part are rotationally arranged on the double slide rail part through a support part, the long gear shaft is arranged on the end shaft part and one end of the end shaft part has a power end; the side pushing transmission part includes a lower slide rod, a movable block and a vertical rack, one end of the lower slide rod is fixed to the bottom surface of the supporting plate, the movable block is slidably arranged on the lower slide rod, the movable block is connected with the ends of the two lower supporting arms away from the side support, the movable block and the bottom surface of the supporting plate are connected through an outer rotation spring, and one end of the vertical rack is fixedly connected with the side surface of the movable block and the other end is engaged with the long gear shaft.

[0011] In an alternative: the end of the lower supporting arm away from the side support has a frame rod part, the frame rod part extends to the side of the movable block, the outer wall of the movable block has a pushing column part which penetrates the frame rod part.

[0012] In an alternative: the side wall of the double slide rail part has a plurality of equidistantly distributed blocking protrusions, a recess is formed between two adjacent blocking protrusions, the blocking assembly comprises a blocking rotation shaft, a blocking support, a blocking pressing plate and at least one blocking elastic telescopic rod, the blocking rotation shaft is rotationally arranged at the side of the chassis part, one side of the blocking support is connected with the blocking rotation shaft and the other end is connected with the blocking pressing plate, the blocking pressing plate has a blocking protruding strip towards the end surface of the side wall of the double slide rail part; the end of the blocking support is provided with a side connecting column, one end of the blocking elastic telescopic rod is hingedly connected with the side wall of the support part and the other end is hingedly connected with the side connecting column, and the hinge points of the blocking elastic telescopic rod and the support part are at the same height as the blocking rotation shaft.

[0013] In an alternative: the synchronous connection assembly comprises a plurality of cross rod groups, the plurality of cross rod groups are equidistantly distributed and connected, the cross rod group comprises a center node and two rotating rod members, the two rotating rod members are crossed with each other and rotationally connected through the center node at the middle position, the center node in the cross rod group at the two ends is rotationally connected with the bottom of the chassis part, and the center node in the cross rod group at the middle is rotationally connected with the center plate; the end portions of the rotating rod members of two adjacent cross rod groups are hingedly connected.

[0014] By adopting the technical scheme, the present application has the following beneficial effects:

[0015] In the automobile drive axle production fixing tool provided by the present application, the drive axle body is automatically pushed to the center position through the cooperation of the side pushing execution part and the side pushing driving assembly, axial accurate centering is realized, and manual intervention is reduced; the synchronous connection assembly ensures that the two support assembly move reversely and synchronously, and always maintains symmetrical distribution, thereby adapting to the rapid positioning of drive axles of different lengths; the side pushing execution part limits the axial movement of the positioning bearing part, and the bolt fastening positioning lug is combined to effectively prevent the workpiece from deviating or falling off during processing; the integrated slide rail, support and driving mechanism simplify the operation process, improve the clamping efficiency, and are suitable for batch production; the adjustable design adapts to various drive axle sizes, reduces the replacement cost of the tool, and improves the equipment utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical scheme in the prior art, the drawings needed to be used in the following specific embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 The automobile drive axle mounting structure schematic diagram provided by the embodiment of the present application;

[0018] Figure 2 The automobile drive axle mounting structure schematic diagram provided by the embodiment of the present application; Figure 1The overall structure of the fixing tool is shown in the schematic diagram.

[0019] Figure 3 For Figure 2 The connection schematic diagram of the support assembly and the side pushing positioning assembly is shown.

[0020] Figure 4 The structure schematic diagram of the support assembly of the present application is shown.

[0021] Figure 5 The three-dimensional structure schematic diagram of the side pushing positioning assembly of the present application is shown.

[0022] Figure 6 The three-dimensional structure schematic diagram of the blocking assembly provided by another embodiment of the present application is shown.

[0023] Reference signs:

[0024] The driving bridge body 100, the positioning force bearing part 110, the positioning lug 120, the double slide rail part 200, the blocking protrusion 210, the support assembly 300, the chassis part 310, the support part 320, the support slide rail part 330, the synchronous connection assembly 400, the rotating rod part 410, the center node 420, the center plate 500, the side pushing driving assembly 600, the end shaft part 610, the long gear shaft 620, the power end 630, the support base part 640, the side pushing positioning assembly 700, the supporting plate part 710, the side pushing execution part 720, the upper support arm 721, the side pushing action block 722, the lower support arm 723, the frame rod part 724, the hollow connection part 730, the mounting hole 740, the clamping seat part 750, the side support base 760, the side pushing transmission part 770, the lower slide rod 771, the outer rotating spring 772, the movable block 773, the pushing column part 774, the vertical rack 775, the blocking assembly 800, the blocking rotating shaft 810, the blocking support 820, the blocking pressing plate 830, the side connecting column 840, the blocking elastic telescopic rod 850, and the blocking protrusion 860. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The present application will be further explained in conjunction with the specific embodiments.

[0029] The left and right and up and down positions of each component shown in the drawings are only one arrangement, and the specific position is set according to the specific needs.

[0030] In one embodiment, as Figures 1-3As shown, a kind of automobile drive axle production fixed tool, including double slide rail part 200 and two support frame assemblies 300 slidably installed on double slide rail part 200, each support frame assembly 300 top is provided with side push positioning assembly 700, and side push positioning assembly 700 is used to support and fasten drive axle body 100;The side push positioning assembly 700 includes support plate piece 710 and two side push execution components 720, the both sides of support plate piece 710 can be slidably arranged on the top of support frame assembly 300, and the side of support plate piece 710 can also be fastened together with the positioning lug 120 on drive axle body 100 by fastening bolt, two side push execution components 720 are respectively arranged on the both sides of support plate piece 710 in symmetrical manner, and the lower end of side push execution component 720 extends to the lower side of support plate piece 710 and is connected with side push driving assembly 600 arranged on double slide rail part 200, and side push execution component 720, which rotates around the connection of support plate piece 710, can act on the positioning force bearing part 110 arranged on drive axle body 100 to make support plate piece 710 slide relative to the top of support frame assembly 300;The middle position of double slide rail part 200 is also provided with center plate 500, and center plate 500 is provided with synchronous connection assembly 400, the both ends of synchronous connection assembly 400 are respectively connected with the bottom of two support frame assemblies 300, and synchronous connection assembly 400 can make two support frame assemblies 300 keep synchronization and opposite moving direction state when moving along double slide rail part 200.

[0031] In the embodiment of the present application, the worker adjusts the distance between the two support frame assemblies 300 according to the length of the drive axle body 100, so that the support area of the drive axle body 100 falls on the supporting plate 710; when the two support frame assemblies 300 are adjusted, only one of the two support frame assemblies 300 needs to be moved along the double slide rail part 200, and since the synchronous connection assembly 400 is arranged on the center plate 500 and located at the middle position of the double slide rail part 200, the synchronous connection assembly 400 limits the two support frame assemblies 300, so that the two support frame assemblies 300 remain in a synchronous and opposite moving state, that is, the two support frame assemblies 300 respectively move towards or away from the center plate 500 along the double slide rail part 200, so as to keep the center positions of the two support frame assemblies 300 at the midpoint position of the double slide rail part 200, adjust the positions of the two side pushing positioning assemblies 700 on the support frame assemblies 300 and fasten them, and the two side pushing positioning assemblies 700 always remain in a position symmetrical to the midpoint of the double slide rail part 200; the worker lifts the drive axle body 100 by the hoisting device matched with the device and places it on the side pushing positioning assembly 700, at this time, the two side pushing execution parts 720 in the side pushing positioning assembly 700 are in an open state, the support surface of the drive axle body 100 is in contact with the supporting plate 710, the side pushing driving assembly 600 works and drives the side pushing execution parts 720 in the two side pushing positioning assemblies 700, the two side pushing execution parts 720 rotate around the connection position with the supporting plate 710, and the top of the side pushing execution part 720 acts on the positioning force receiving part 110 on the drive axle body 100, one of the positioning force receiving parts 110 is subjected to the side pushing action, the entire drive axle body 100 moves axially until the two positioning force receiving parts 110 of the drive axle body 100 respectively abut against the side pushing execution parts 720 in the two side pushing positioning assemblies 700, at this time, the middle position of the drive axle body 100 is opposite to the center plate 500, so as to realize automatic positioning, the two groups of side pushing execution parts 720 can limit the axial movement of the positioning force receiving parts 110 from both ends, and at the same time, the positioning lugs 120 and the supporting plate 710 can be fastened together by the fastening bolts, so as to ensure the firmness of the installation of the positioning force receiving parts 110 and avoid the position deviation of the drive axle body 100 or the falling of the drive axle body 100 from the side pushing positioning assembly 700 during processing.

[0032] In one embodiment, as Figures 1-4As shown, the support frame assembly 300 includes a chassis part 310 and two support frame parts 320, the chassis part 310 is slidably arranged on the double slide rail part 200, the bottom of the chassis part 310 is connected with one end of the synchronous connection assembly 400, the two support frame parts 320 are symmetrically arranged on the upper end face of the chassis part 310, the two hollow connection parts 730 are slidably connected with the two sides of the supporting plate 710, and one side of the chassis part 310 is further provided with a blocking assembly 800, the blocking assembly 800 is used for fastening the side of the chassis part 310 and the side of the double slide rail part 200 together; in the embodiment of the application, the two side pushing execution parts 720 play a role in supporting the side pushing execution parts 720, and then supporting the drive axle body 100; the supporting plate 710 can slide on the chassis part 310, and the distance between the two supporting plates 710 can be finely adjusted to ensure that the supporting parts of the drive axle body 100 can be respectively arranged on the two supporting plates 710; after the two support frame assemblies 300 are adjusted, the chassis part 310 and the side of the double slide rail part 200 can be fastened together through the blocking assembly 800, so as to limit the movement of the two support frame assemblies 300 on the double slide rail part 200, and ensure the stability of the support.

[0033] In one embodiment, as shown in Figures 1-3 As shown, the support frame part 320 has a supporting slide rail part 330 on the top, the two sides of the supporting plate 710 are provided with hollow connection parts 730, and the bottom surface of the hollow connection part 730 is provided with a clamping seat 750 which can be slid and buckled on the supporting slide rail part 330; the hollow connection part 730 has a plurality of equidistantly distributed mounting holes 740 which penetrate through the hollow connection part 730; in the embodiment of the application, the clamping seat 750 can be fastened at a specific position of the hollow connection part 730 through the cooperation of the fastening bolt and the mounting hole 740, and the mounting hole 740 can be aligned with the positioning lug 120 and fastened through a bolt, so as to realize the firmness after the drive axle body 100 is installed.

[0034] In one embodiment, as shown in Figures 1-5As shown, the outer side of the hollow connecting part 730 is provided with a side support 760, the side pushing component 720 comprises an upper supporting arm 721, a side pushing block 722 and a lower supporting arm 723, the upper supporting arm 721 and the lower supporting arm 723 are connected as a whole and are rotationally connected with the side support 760, the side pushing block 722 is arranged at the end of the upper supporting arm 721 away from the side support 760 and the end surface of the side pushing block 722 towards the other side pushing positioning assembly 700 is a bevel surface; the bottom of the supporting plate 710 is provided with a side pushing transmission part 770, the end of the lower supporting arm 723 away from the side support 760 extends to the side pushing transmission part 770 and is connected with the same; the side pushing transmission part 770 is connected with the side pushing driving assembly 600; in the embodiment, the side pushing driving assembly 600 acts on the end of the lower supporting arm 723 away from the side support 760 through the side pushing transmission part 770, so that the upper supporting arm 721 rotates around the side support 760, and then the side pushing block 722 is used to push the positioning force part 110, so that the driving bridge main body 100 moves axially and is automatically positioned.

[0035] In one embodiment, as Figures 1-5As shown, the side pushing driving assembly 600 comprises an end shaft part 610 and a long gear shaft 620, the end shaft part 610 is rotatably arranged on the double slide rail part 200 through the support part 640 at both ends, the long gear shaft 620 is arranged on the end shaft part 610 and the end shaft part 610 has a power end 630 at one end; the side pushing transmission part 770 comprises a lower slide rod 771, a movable block 773 and a vertical rack 775, the lower slide rod 771 is fixed at one end on the bottom surface of the supporting plate 710, the movable block 773 is slidably arranged on the lower slide rod 771, the movable block 773 is connected with the end of the two lower supporting arms 723 away from the side support 760, the movable block 773 is connected with the bottom surface of the supporting plate 710 through the outer turning spring 772, and the vertical rack 775 is fixedly connected with the side surface of the movable block 773 at one end and engaged with the long gear shaft 620 at the other end; in the embodiment of the application, the vertical rack 775 can move along the axis of the long gear shaft 620, so that when the position of the supporting frame assembly 300 and the side pushing positioning assembly 700 is adjusted, the vertical rack 775 is always in engagement with the long gear shaft 620; the staff acts on the end shaft part 610 through the power end 630 to make it rotate, the long gear shaft 620 rotates with the end shaft part 610, and the movable block 773 moves on the lower slide rod 771 through the engagement with the vertical rack 775, the movable block 773 drives the upper supporting arm 721 to rotate around the side support 760 through the lower supporting arm 723, and then the side pushing block 722 can be rotated to the upper side of the supporting plate 710 and pushed on the positioning force receiving part 110 of the driving bridge main body 100 by using the inclined surface thereof; in the initial state, due to the elastic force of the outer turning spring 772, the movable block 773 is always located at a specific position on the lower slide rod 771, the outer turning spring 772 is kept at a position on the side of the supporting plate 710 and close to the lower position, so that the blocking phenomenon of the side pushing block 722 and the driving bridge main body 100 is avoided when the driving bridge main body 100 is placed on the supporting plate 710.

[0036] In one embodiment, as shown in Figures 1-5 As shown, the end of the lower supporting arm 723 away from the side support 760 has a frame rod 724, the frame rod 724 extends to the side of the movable block 773, the outer wall of the movable block 773 has a pushing column 774 and the pushing column 774 penetrates through the frame rod 724; in the embodiment of the application, when the movable block 773 moves vertically on the lower slide rod 771, the pushing column 774 moves with the movable block 773 and pushes the frame rod 724 by using the movement of the pushing column 774 in the frame rod 724, the frame rod 724 is stressed and acts on the lower supporting arm 723 to make it rotate around the side support 760.

[0037] In one embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the side wall of the double slide rail part 200 has a plurality of equidistantly distributed blocking protrusions 210, and a recess is formed between two adjacent blocking protrusions 210. The blocking assembly 800 comprises a blocking rotating shaft 810, a blocking support 820, a blocking pressing plate 830, and at least one blocking elastic telescopic rod 850. The blocking rotating shaft 810 is arranged to rotate at the side of the chassis part 310. The blocking support 820 is connected to the blocking rotating shaft 810 at one side and connected to the blocking pressing plate 830 at the other end. The blocking pressing plate 830 has blocking protrusions 860 on the end face facing the side wall of the double slide rail part 200. The end of the blocking support 820 is provided with a side connecting column 840. One end of the blocking elastic telescopic rod 850 is hinged to the side wall of the support part 320, and the other end is hinged to the side connecting column 840. The hinge point of the blocking elastic telescopic rod 850 and the support part 320 is at the same height as the blocking rotating shaft 810. In the embodiment of the present application, the staff drives the blocking rotating shaft 810 to rotate and drive the blocking support 820 to rotate, so that the blocking support 820 and the blocking pressing plate 830 can be rotated above or below the blocking rotating shaft 810. When the blocking pressing plate 830 is below the blocking rotating shaft 810, the blocking elastic telescopic rod 850 is in a stretched state, and the elastic force of the blocking elastic telescopic rod 850 always pulls the side connecting column 840, so that the blocking pressing plate 830 is tightly attached to the outer wall of the double slide rail part 200, the blocking protrusions 860 are clamped into the recess between the two adjacent blocking protrusions 210, and the support assembly 300 is restricted from moving relative to the double slide rail part 200. When the blocking pressing plate 830 is above the blocking rotating shaft 810, the blocking elastic telescopic rod 850 is still in a stretched state, and the elastic force of the blocking elastic telescopic rod 850 pulls the side connecting column 840 to limit the blocking pressing plate 830 from rotating below the blocking rotating shaft 810, so as to ensure that the support assembly 300 can move on the double slide rail part 200 without obstruction.

[0038] In one embodiment, as shown in the drawings, Figures 1-4 The synchronous connection assembly 400 comprises a plurality of cross rod groups, the plurality of cross rod groups are equidistantly distributed and connected, each cross rod group comprises a center node 420 and two rotating rod members 410, the two rotating rod members 410 are crossed and connected to rotate at the center node 420, the center node 420 in the cross rod group at the two ends is connected to rotate at the bottom of the chassis part 310, and the center node 420 in the cross rod group at the middle is connected to rotate at the center plate 500. The end of the rotating rod member 410 of the adjacent two cross rod groups is hinged. In the embodiment of the present application, the center node 420 in the middle cross rod group does not move, and when one of the support assemblies 300 moves, the rotating state of the rotating rod member 410 in the plurality of cross rod groups around the center node 420 is used to transmit the driving force, so that the two support assemblies 300 move synchronously and the rotating directions are opposite. The cross rod group is used as a connection transmission member, which can increase the moving stroke without increasing the size of the whole mechanism.

[0039] The above embodiment provides a fixed tool for automobile drive axle production, which works as follows:

[0040] 1. Initial adjustment stage

[0041] Synchronous adjustment of support frame assembly 300

[0042] According to the length of the drive axle body 100, the staff manually moves one of the support frame assemblies 300 along the double slide rail part 200. Since the synchronous connection assembly 400 is fixed at the midpoint of the double slide rail part 200 through the center plate 500, the two support frame assemblies 300 will be synchronously and reversely moved through the linkage of the cross rod group rotating rod member 410 and the center node 420, ensuring that they are always symmetrical about the midpoint of the double slide rail part, thereby adapting to drive axle bodies 100 of different lengths.

[0043] Locking position of blocking movement assembly 800

[0044] After the adjustment is completed, the blocking movement pressure plate 830 of the blocking movement assembly 800 is turned over to below the blocking movement rotating shaft 810, and the elastic force of the blocking movement elastic telescopic rod 850 forces the blocking movement protruding strip 860 to be clamped into the recessed part of the sidewall of the double slide rail part 200, locking the position of the chassis part 310 and preventing the support frame assembly 300 from sliding during processing.

[0045] 2. Drive axle positioning and fixing stage

[0046] Hoisting and initial placement

[0047] The drive axle body 100 is placed on the two side support plate members 710 through the hoisting device, at this time the side push execution member 720 is in the open state and is acted on by the outer turning spring 772, and the support surface of the drive axle is in contact with the support plate member 710.

[0048] Automatic positioning of side pushing

[0049] Power input: Rotate the end shaft part 610 through the power end 630 to drive the long gear shaft 620 to rotate.

[0050] Transmission process: The long gear shaft 620 drives the vertical rack 775 to move downward, pushes the movable block 773 to slide along the downward sliding rod 771, and drives the frame rod member 724 to make the lower supporting arm 723 rotate around the side support 760.

[0051] Execution action: The side pushing action block 722 of the upper supporting arm 721 contacts the positioning force receiving part 110 of the drive axle, applies a lateral pushing force, and the drive axle body 100 moves axially until the two positioning force receiving parts 110 are in abutment with the side push execution member 720, realizing automatic centering positioning of the midpoint of the drive axle body 100 and alignment with the center plate 500.

[0052] Final fastening

[0053] The mounting hole 740 of the support plate 710 is connected with the positioning lug 120 of the drive axle body 100 through the fastening bolt, which ensures that the drive axle body 100 is not displaced or falls off during machining.

[0054] 3. Key agencies synergy

[0055] Synchronous connection assembly 400

[0056] The cross rod group structure ensures the symmetrical movement of the two support frame assemblies 300, avoids manual adjustment errors, and improves positioning efficiency.

[0057] Side push driving assembly 600 and side push execution component 720

[0058] The gear-rack transmission converts the rotary motion into the swing of the side push execution component 720, realizes the axial fine adjustment of the drive axle through the inclined surface contact, and automatically completes the accurate positioning.

[0059] Blocking assembly 800

[0060] The elastic locking design takes into account the adjustment flexibility and machining stability, and the cooperation of the blocking convex strip 860 and the blocking convex 210 provides reliable locking.

[0061] 4. Reset and reuse

[0062] After machining, loosen the fastening bolt, reverse the power end 630 to reset the side push execution component 720, and the outer turning spring 772 assists the rebound, the blocking assembly 800 is unlocked, and the position of the support frame assembly can be adjusted to adapt to the next workpiece.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An automobile drive axle production fixing tool, comprising a double slide rail part (200) and two support frame assemblies (300) slidably installed on the double slide rail part (200), and a side pushing positioning assembly (700) is arranged at the top of each support frame assembly (300), and the side pushing positioning assembly (700) is used for supporting and fastening a drive axle body (100), characterized in that, The side pushing positioning assembly (700) comprises a supporting plate member (710) and two side pushing execution members (720); The supporting plate member (710) is slidably arranged at the top of the support frame assembly (300) on both sides, and the side of the supporting plate member (710) can be fastened with the positioning lug (120) on the driving bridge body (100) through fastening bolts; The two side pushing execution members (720) are symmetrically arranged at the two sides of the supporting plate member (710), the lower end of the side pushing execution member (720) extends to the lower side of the supporting plate member (710) and is connected with the side pushing driving assembly (600) arranged on the double slide rail part (200), and the side pushing execution member (720) rotating around the connection between the supporting plate member (710) can act on the positioning force bearing part (110) arranged on the driving bridge body (100) to make the supporting plate member (710) slide relative to the top of the support frame assembly (300); The central plate (500) is arranged at the middle position of the double slide rail part (200), and the synchronous connection assembly (400) is arranged on the central plate (500), the two ends of the synchronous connection assembly (400) are connected with the bottoms of the two support frame assemblies (300) respectively, and the synchronous connection assembly (400) can make the two support frame assemblies (300) keep synchronization and opposite moving directions when moving along the double slide rail part (200); The support frame assembly (300) comprises a bottom disc part (310) and two support frame parts (320); The bottom disc part (310) is slidably arranged on the double slide rail part (200), the bottom of the bottom disc part (310) is connected with one end of the synchronous connection assembly (400), the two support frame parts (320) are symmetrically arranged on the upper end face of the bottom disc part (310), and the two hollow connection parts (730) are slidably connected with the two sides of the supporting plate member (710); One side of the bottom disc part (310) is further provided with a blocking assembly (800) for fastening the side of the bottom disc part (310) with the side of the double slide rail part (200); The support frame part (320) has a supporting slide rail part (330) at the top, the two sides of the supporting plate member (710) are provided with hollow connection parts (730), and the bottom face of the hollow connection part (730) has a clamping seat member (750) which can be clamped on the supporting slide rail part (330); The hollow connection part (730) has a plurality of equidistantly distributed mounting holes (740) penetrating through the hollow connection part (730); The outer side of the hollow connection part (730) has a side support (760), and the side pushing execution member (720) comprises an upper supporting arm (721), a side pushing action block (722) and a lower supporting arm (723); The upper supporting arm (721) and the lower supporting arm (723) are connected into one body and are rotationally connected with the side support (760), the side pushing action block (722) is arranged at the end of the upper supporting arm (721) away from the side support (760), and the end face of the side pushing action block (722) facing the other side pushing positioning assembly (700) is inclined. The bottom of the supporting plate (710) is provided with a side pushing transmission part (770), and the end of the lower supporting arm (723) away from the side support (760) extends to the side pushing transmission part (770) and is connected with the same; the side pushing transmission part (770) is connected with the side pushing driving assembly (600); The side pushing driving assembly (600) comprises an end shaft part (610) and a long gear shaft (620), the end shaft part (610) is rotatably arranged on the double slide rail part (200) through a support part (640) at both ends, and the long gear shaft (620) is arranged on the end shaft part (610) and one end of the end shaft part (610) has a power end (630); The side pushing transmission part (770) comprises a lower slide rod (771), a movable block (773) and a vertical rack (775), one end of the lower slide rod (771) is fixed to the bottom surface of the supporting plate (710), the movable block (773) is slidably arranged on the lower slide rod (771), and the movable block (773) is connected with the ends of the two lower supporting arms (723) away from the side support (760); The movable block (773) is connected with the bottom surface of the supporting plate (710) through an outer turning spring (772), one end of the vertical rack (775) is fixedly connected with the side surface of the movable block (773), and the other end is engaged with the long gear shaft (620).

2. The automobile drive axle production fixing tooling according to claim 1, characterized in that, The end of the lower supporting arm (723) away from the side support (760) has a frame rod part (724), the frame rod part (724) extends to the side of the movable block (773), the outer wall of the movable block (773) has a pushing column part (774), and the pushing column part (774) penetrates through the frame rod part (724).

3. The automobile drive axle production fixing tooling according to claim 1, characterized in that, The side wall of the double slide rail part (200) has a plurality of equidistantly distributed blocking convex parts (210), and a recess part is formed between two adjacent blocking convex parts (210); the blocking assembly (800) comprises a blocking rotating shaft (810), a blocking support (820), a blocking pressing plate (830) and at least one blocking elastic telescopic rod (850); The blocking rotating shaft (810) is rotatably arranged on the side of the bottom disc part (310), one side of the blocking support (820) is connected with the blocking rotating shaft (810), and the other end is connected with the blocking pressing plate (830); the end surface of the blocking pressing plate (830) towards the side wall of the double slide rail part (200) has a blocking convex strip (860); The end of the blocking support (820) is provided with a side connecting column (840), one end of the blocking elastic telescopic rod (850) is hingedly connected with the side wall of the support part (320), and the other end is hingedly connected with the side connecting column (840); the hinge points of the blocking elastic telescopic rod (850) and the support part (320) are located at the same height as the blocking rotating shaft (810).

4. The automobile drive axle production fixing tooling according to claim 1, characterized in that, The synchronous connection assembly (400) comprises a plurality of cross rod groups, the plurality of cross rod groups are equidistantly distributed and connected, and the cross rod group comprises a center node (420) and two rotating rod parts (410). The two rotating rod members (410) are crossed with each other and are rotatably connected by the central node (420) at the middle position. The central node (420) in the cross rod group at the two ends is rotatably connected with the bottom of the chassis (310), and the central node (420) in the cross rod group at the middle is rotatably connected with the central plate (500). The end portions of the rotating rod members (410) of the two adjacent cross rod groups are hingedly connected.

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