An auxiliary device for power assembly and installation method

Abstract

The application relates to an auxiliary device for power assembly installation and an installation method, and relates to the technical field of power assembly auxiliary equipment, which comprises at least three auxiliary positioning components used for being arranged on the outer periphery of a to-be-assembled part, used for cooperating with the installation angle of the to-be-assembled part and the assembled part, the auxiliary positioning component comprises a mounting seat; an abutting rod, one end of which extends out of the mounting seat and is used for abutting on the assembled part and can be retracted; and an adjusting mechanism connected with the abutting rod, used for locking or unlocking the relative position of the abutting rod and the mounting seat, so as to adjust the assembly angle of the assembled part and the to-be-assembled part. The adjustment precision is higher, the assembly precision is guaranteed, and the problems that in the prior art, accurate positioning needs to be carried out when the engine and the gearbox are placed on a tray, the engine and the gearbox are deviated during the movement of the tray on a guide rail, the axial stress is uneven during assembly, the flywheel is possibly damaged, the assembly precision is affected, and the power assembly is possibly damaged are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power assembly auxiliary equipment, and particularly relates to an auxiliary device for power assembly and a mounting method. BACKGROUND

[0002] The engine and the gearbox are generally transported to the vehicle factory for online assembly, and then the engine and the gearbox are assembled into the vehicle as a power assembly. The current assembly method is hoisting, the engine assembly is placed on a tray, the gearbox assembly is hoisted by a lifting tool, and the input shaft is inserted into the flywheel at the rear end of the engine.

[0003] In the prior art, a power assembly assembly tool with the publication number CN114379681A includes a base support, a rotating shaft, a guide rail, an engine tray, an engine support, a gearbox tray and a gearbox support. The rotating shaft is installed on the base support through a ball bearing, and the rotating shaft can rotate around the shaft. The guide rail is installed on the four directions of the plane of the rotating shaft through bolts. The engine tray and the gearbox tray are installed on the guide rail and can slide axially along the guide rail. The engine support is fixed on the engine tray, and the gearbox support is fixed on the gearbox tray. The technical solution solves the problem that hoisting can easily cause damage to the double-mass flywheel, and solves the problem that hoisting requires repeated up and down and left and right shaking of the gearbox to insert the input shaft of the gearbox into the flywheel, causing additional expenditure of manpower and resources.

[0004] However, the power assembly assembly tool needs to be precisely positioned when the engine and the gearbox are placed on the tray. If the engine and the gearbox are offset during the movement of the tray on the guide rail, it may cause uneven axial stress during assembly, which may cause flywheel failure, affecting assembly accuracy and causing power assembly failure. SUMMARY

[0005] The present application provides an auxiliary device for power assembly assembly and a mounting method, which can solve the problem that the power assembly assembly tool in the prior art needs to be precisely positioned when the engine and the gearbox are placed on the tray. If the engine and the gearbox are offset during the movement of the tray on the guide rail, it may cause uneven axial stress during assembly, which may cause flywheel failure, affecting assembly accuracy and causing power assembly failure.

[0006] In a first aspect, the embodiments of the present application provide an auxiliary device for power assembly assembly, which includes at least three auxiliary positioning components for being arranged on the outer periphery of a to-be-assembled part, for cooperating to adjust the mounting angle of the to-be-assembled part and an assembled part, and the auxiliary positioning component includes:

[0007] a mounting seat;

[0008] an abutting rod, one end of which extends out of the mounting base and is used to abut on the assembly part and can be retracted;

[0009] an adjusting mechanism, which is connected with the abutting rod and is used to lock or unlock the relative position of the abutting rod and the mounting base, so as to adjust the assembly angle of the assembly part and the to-be-assembled part.

[0010] In combination with the first aspect, in an embodiment, three auxiliary positioning assemblies are included, two of which are located on the same horizontal plane and constitute a horizontal positioning mechanism for positioning the mounting angle of the assembly part and the to-be-assembled part in the horizontal direction, and the other auxiliary positioning assembly is arranged below the horizontal positioning mechanism as a vertical positioning mechanism for positioning the mounting angle of the assembly part and the to-be-assembled part in the vertical direction in cooperation with the horizontal positioning mechanism.

[0011] In combination with the first aspect, in an embodiment, a T-shaped inner hole is arranged in the mounting base, the adjusting mechanism includes a locking block and a driving motor, an output shaft of the driving motor is connected with the locking block, the abutting rod passes through a horizontal hole of the T-shaped inner hole, the locking block is arranged in a vertical hole of the T-shaped inner hole and is used to abut on the abutting rod, and the driving motor is used to drive the locking block to move in the vertical hole, so as to lock or open the length of the abutting rod abutting on one end of the assembly part extending out of the horizontal hole, thereby adjusting the assembly angle of the assembly part and the to-be-assembled part.

[0012] In combination with the first aspect, in an embodiment, one end of the locking block away from the driving motor is a wedge-shaped surface, and the locking block is provided with a rectangular slot at the end away from the driving motor, the abutting rod includes an abutting section and a mounting section, one end of the abutting section is used to abut on the assembly part, and the other end is a wedge-shaped head matched with the wedge-shaped surface, the wedge-shaped head is connected with the mounting section, the abutting section and the mounting section are coaxially arranged, the mounting section passes through the rectangular slot, when the driving motor drives the locking block to move downward, the mounting section moves upward in the rectangular slot relative to the locking block, and the abutting section moves inward under the assembly force, so as to change the length of the abutting section extending out of the horizontal hole.

[0013] In combination with the first aspect, in an embodiment, the horizontal hole of the T-shaped inner hole includes a large cavity section and a small cavity section, the abutting section is provided with an abutting boss, and the diameter of the abutting boss is smaller than the diameter of the large cavity section and larger than the diameter of the small cavity section.

[0014] With the first aspect, in one embodiment, a return spring is arranged at the stepped platform where the large cavity section and the small cavity section are connected, one end of the return spring is connected with the stepped platform, and the other end abuts against the abutting boss, and the return spring is used to provide a resilient force to keep the abutting section moving towards the assembly part.

[0015] With the first aspect, in one embodiment, a rack is arranged at the end of the mounting section away from the abutting section, an encoder is arranged on the mounting seat, a rotor of the encoder is engaged with the rack, and when the mounting section moves, the encoder can record the data of the movement.

[0016] In the second aspect, the embodiments of the present application further provide an installation method for power assembly, which is implemented by using the above-mentioned auxiliary device for power assembly, and includes the following steps:

[0017] Moving the assembly part towards the assembly part;

[0018] Real-time acquiring the length of the abutting rod extending out of the mounting seat in all auxiliary positioning assemblies, and converting the length into a real-time deviation value;

[0019] When the real-time deviation value is greater than the maximum deviation value, locking the length of the abutting rod extending out of the mounting seat in at least one auxiliary positioning assembly by adjusting the adjusting mechanism, and moving the assembly part to adjust the length of the abutting rod extending out of the mounting seat in other auxiliary positioning assemblies, until the real-time deviation value converted from the length of the abutting rod extending out of the mounting seat in all auxiliary positioning assemblies is less than the maximum deviation value.

[0020] With the second aspect, in one embodiment, when the adjustment in the horizontal direction is performed, the following steps are included:

[0021] According to the real-time acquired length of the abutting rod extending out of the mounting seat in the two auxiliary positioning assemblies of the horizontal positioning mechanism, a difference value of the length of the abutting rod extending out of the mounting seat in the two auxiliary positioning assemblies is obtained, and then a horizontal angle deviation value is obtained;

[0022] When the horizontal angle deviation value is greater than a horizontal maximum deviation value, locking the abutting rod with shorter length extending out of the mounting seat in the two auxiliary positioning assemblies of the horizontal positioning mechanism by driving the lock block driven by the driving motor, calculating the required number of propulsion pulses according to the difference value of the length of the abutting rod extending out of the mounting seat in the two auxiliary positioning assemblies, and increasing the required number of propulsion pulses of the encoder in the other auxiliary positioning assembly by the assembly force in the assembly process, until the horizontal angle deviation value is less than the horizontal maximum deviation value, and unlocking the locked abutting rod.

[0023] With the second aspect, in one embodiment, when the adjustment in the vertical direction is performed, the following steps are included:

[0024] According to the length of the abutting rod extending from the mounting seat of the two auxiliary positioning assemblies of the horizontal positioning mechanism, the average value is calculated, and the length of the abutting rod extending from the mounting seat of the auxiliary positioning assembly of the vertical positioning mechanism is obtained in real time, the average value of the length of the abutting rod extending from the mounting seat of the two auxiliary positioning assemblies of the horizontal positioning mechanism obtained in real time is calculated, and the difference between the length of the abutting rod extending from the mounting seat of the auxiliary positioning assembly of the vertical positioning mechanism obtained in real time is calculated, and then the vertical angle deviation value is obtained;

[0025] When the vertical angle deviation value is greater than the vertical maximum deviation value, the abutting rods of the two auxiliary positioning assemblies of the horizontal positioning mechanism are locked by driving the motor to drive the locking block, the required advancing pulse number is calculated according to the average value of the length of the abutting rod extending from the mounting seat of the two auxiliary positioning assemblies of the horizontal positioning mechanism obtained in real time and the difference between the length of the abutting rod extending from the mounting seat of the auxiliary positioning assembly of the vertical positioning mechanism obtained in real time, when the difference is negative, the assembly part and the part to be assembled continue to advance in the assembly direction by the required advancing pulse number, when the difference is positive, the assembly part and the part to be assembled move in the reverse direction of the assembly direction by the required advancing pulse number, and the required advancing pulse number is advanced by the return spring, until the vertical angle deviation value is less than the vertical maximum deviation value, and the locked abutting rod is unlocked.

[0026] The technical scheme provided by the embodiment of the application has the following beneficial effects:

[0027] When the auxiliary device for power assembly assembly is used, at least three auxiliary positioning assemblies are arranged on the outer periphery of the part to be assembled, the abutting rod extends from the mounting seat at one end and is used for abutting on the assembly part, and the adjusting mechanism is used for locking or unlocking the relative position of the abutting rod and the mounting seat. The part to be assembled is moved to the assembly part, the length of the abutting rod extending from the mounting seat of all auxiliary positioning assemblies is obtained in real time, and is converted into a real-time deviation value; when the real-time deviation value is greater than the maximum deviation value, the length of the abutting rod extending from the mounting seat of at least one auxiliary positioning assembly is locked by the adjusting mechanism, and the part to be assembled is moved to adjust the length of the abutting rod extending from the mounting seat of the other auxiliary positioning assemblies, until the real-time deviation value converted from the length of the abutting rod extending from the mounting seat of all auxiliary positioning assemblies is less than the maximum deviation value, the adjustment accuracy is higher, the assembly accuracy is guaranteed, and the problems in the prior art that the power assembly assembly tool needs to be accurately positioned when the engine and the gearbox are placed on the tray, and the engine and the gearbox are deviated during the movement of the tray on the guide rail, which may cause uneven axial stress during assembly and further may cause flywheel failure, thereby affecting the assembly accuracy and further causing power assembly failure are solved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0029] Figure 1 The structural schematic view of the structure arranged on the to-be-assembled part in an embodiment of the auxiliary device for power assembly.

[0030] Figure 2 The structural schematic view of an embodiment of the auxiliary device for power assembly.

[0031] Figure 3 The structural schematic view of the abutting rod in an embodiment of the auxiliary device for power assembly.

[0032] Figure 4 The sectional structural schematic view of an embodiment of the auxiliary device for power assembly.

[0033] In the figure: 1, auxiliary positioning assembly; 11, abutting rod; 111, abutting section; 112, mounting section; 12, adjusting mechanism; 121, locking block; 122, driving motor; 13, mounting seat; 131, guide arm; 132, limiting boss; 2, encoder; 3, abutting boss; 4, platform; 5, guide rail; 6, placing table; 7, moving table; 8, to-be-assembled part; 9, assembled part. DETAILED DESCRIPTION

[0034] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0035] The embodiment of the present application provides an auxiliary device for power assembly and an installation method, which can solve the problem that the power assembly tool needs to be accurately positioned when the engine and the gearbox are placed on the tray in the prior art, and when the engine and the gearbox are deviated during the movement of the tray on the guide rail, the axial stress is uneven during assembly, which may cause flywheel failure, affect assembly accuracy, and cause power assembly failure.

[0036] As Figure 1 , Figure 2 , Figure 3 andFigure 4 As shown, in one aspect, this application provides an auxiliary device for powertrain assembly, comprising: at least three auxiliary positioning components 1 for being disposed on the outer periphery of the component to be assembled 8, for cooperating in adjusting the installation angle between the component to be assembled 8 and the component 9. The auxiliary positioning component 1 includes a mounting base 13, an abutment rod 11, and an adjustment mechanism 12, wherein one end of the abutment rod 11 extends out of the mounting base 13 and is used to abut against the component 9, and is retractable; the adjustment mechanism 12 is connected to the abutment rod 11 and is used to lock or unlock the relative position of the abutment rod 11 and the mounting base 13 to adjust the assembly angle between the component 9 and the component to be assembled 8.

[0037] When using the auxiliary device for powertrain assembly, at least three auxiliary positioning components 1 are arranged on the outer periphery of the part to be assembled 8, one end of the abutment rod 11 extends out of the mounting base 13 and is used to abut against the part 9, and the adjustment mechanism 12 is used to lock or unlock the relative position of the abutment rod 11 and the mounting base 13. The assembly tool 8 is moved toward the assembly tool 9. The length of the abutment rod 11 extending out of the mounting base 13 in all auxiliary positioning components 1 is obtained in real time and converted into a real-time deviation value. When the real-time deviation value is greater than the maximum deviation value, the length of the abutment rod 11 extending out of the mounting base 13 in at least one of the auxiliary positioning components 1 is locked by the adjustment mechanism 12, and the assembly tool 8 is moved to adjust the length of the abutment rod 11 extending out of the mounting base 13 in the other auxiliary positioning components 1 until the real-time deviation value converted from the length of the abutment rod 11 extending out of the mounting base 13 in all auxiliary positioning components 1 is less than the maximum deviation value. The adjustment accuracy is higher, ensuring the assembly accuracy. This solves the problem in the prior art where the powertrain assembly tooling needs to be precisely positioned when the engine and transmission are placed on the pallet. When the pallet moves on the guide rail, the engine and transmission may be misaligned, which may lead to uneven axial force during assembly, which may lead to flywheel failure. This affects the assembly accuracy and may lead to powertrain failure.

[0038] In this example, the mounting base 13 is provided with a guide arm 131, which is used to guide the assembly 9 and the assembly to be assembled 8 to be concentric.

[0039] In this example, it also includes a platform 4, which is provided with a guide rail 5, a placement table 6 and a moving table 7. The part to be assembled 8 is placed on the moving table 7, which can move along the guide rail 5 to the placement table 6. The placement table 6 is provided with the part 9.

[0040] In some optional embodiments, three auxiliary positioning components 1 are included, wherein two auxiliary positioning components 1 are located on the same horizontal plane to form a horizontal positioning mechanism for positioning the installation angle of the assembly 9 and the part to be installed 8 in the horizontal direction, and the other auxiliary positioning component 1 is located below the horizontal positioning mechanism as a vertical positioning mechanism for cooperating with the horizontal positioning mechanism to position the installation angle of the assembly 9 and the part to be installed 8 in the vertical direction.

[0041] In the present embodiment, the auxiliary device for power assembly includes three auxiliary positioning assemblies 1, two of which are located on the same horizontal plane, constituting a horizontal positioning mechanism for positioning the installation angle of the assembly part 9 and the part to be assembled 8 in the horizontal direction, and the other auxiliary positioning assembly 1 is arranged below the horizontal positioning mechanism as a vertical positioning mechanism for positioning the installation angle of the assembly part 9 and the part to be assembled 8 in the vertical direction in cooperation with the horizontal positioning mechanism. According to the length of the abutting rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism, the difference in the length of the abutting rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 is obtained, and then the horizontal angle deviation value is obtained. When the horizontal angle deviation value is greater than the maximum horizontal deviation value, the auxiliary positioning assembly 1 with the shorter length of the abutting rod 11 extending out of the mounting seat 13 is locked by the adjusting mechanism 12, and the part to be assembled 8 is moved to adjust the length of the abutting rod 11 extending out of the mounting seat 13 in the other auxiliary positioning assembly 1, until the horizontal angle deviation value converted from the length of the abutting rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism is less than the maximum horizontal deviation value. According to the length of the abutting rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism, the average value is calculated, and the difference between the length of the abutting rod 11 extending out of the mounting seat 13 in the auxiliary positioning assembly 1 of the vertical positioning mechanism and the average value of the length of the abutting rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism is calculated, and then the vertical angle deviation value is obtained. When the vertical angle deviation value is greater than the maximum vertical deviation value, the abutting rod 11 of the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism is locked by the adjusting mechanism 12, and the part to be assembled 8 is moved until the vertical angle deviation value is less than the maximum vertical deviation value.

[0042] As shown in Figure 2 , Figure 3 and Figure 4 , in some optional embodiments, a T-shaped inner hole is arranged in the mounting seat 13, the adjusting mechanism 12 includes a locking block 121 and a driving motor 122, the output shaft of the driving motor 122 is connected with the locking block 121, the abutting rod 11 passes through the horizontal hole of the T-shaped inner hole, the locking block 121 is arranged in the vertical hole of the T-shaped inner hole and is used for abutting against the abutting rod 11, and the driving motor 122 is used for driving the locking block 121 to move in the vertical hole to lock or open the length of the abutting rod 11 extending out of the horizontal hole at one end of the assembly part 9, so as to adjust the assembly angle of the assembly part 9 and the part to be assembled 8.

[0043] In the embodiment, the mounting base 13 is provided with a T-shaped hole, the adjusting mechanism 12 comprises a locking block 121 and a driving motor 122, the output shaft of the driving motor 122 is connected with the locking block 121, the abutting rod 11 passes through the horizontal hole of the T-shaped hole, the locking block 121 is arranged in the vertical hole of the T-shaped hole and is used for abutting against the abutting rod 11, and the driving motor 122 is used for driving the locking block 121 to move in the vertical hole, so as to lock or open the length of the abutting rod 11 protruding from the horizontal hole at one end of the assembly part 9, and further adjust the assembly angle of the assembly part 9 and the to-be-assembled part 8. The adjusting mode and structure of the adjusting mechanism 12 are specifically described, the operation is convenient, and the manufacturing is easy.

[0044] As shown in Figure 3 and Figure 4 In some optional embodiments, the end of the locking block 121 away from the driving motor 122 is a wedge surface, the end of the locking block 121 away from the driving motor 122 is provided with a rectangular groove, the abutting rod 11 comprises an abutting section 111 and a mounting section 112, one end of the abutting section 111 is used for abutting against the assembly part 9, and the other end is a wedge head matched with the wedge surface, the wedge head is connected with the mounting section 112, the abutting section 111 and the mounting section 112 are coaxially arranged, and the mounting section 112 passes through the rectangular groove. When the driving motor 122 drives the locking block 121 to move downward, the mounting section 112 moves upward in the rectangular groove relative to the locking block 121, the abutting section 111 is driven to move inward by the assembly force, so as to change the length of the abutting section 111 protruding from the horizontal hole.

[0045] In the embodiment, the end of the locking block 121 away from the driving motor 122 is a wedge surface, the end of the locking block 121 away from the driving motor 122 is provided with a rectangular groove, the abutting rod 11 comprises an abutting section 111 and a mounting section 112, one end of the abutting section 111 is used for abutting against the assembly part 9, and the other end is a wedge head matched with the wedge surface, the wedge head is connected with the mounting section 112, the abutting section 111 and the mounting section 112 are coaxially arranged, and the mounting section 112 passes through the rectangular groove. When the driving motor 122 drives the locking block 121 to move downward, the mounting section 112 moves upward in the rectangular groove relative to the locking block 121, the abutting section 111 is driven to move inward by the assembly force, so as to change the length of the abutting section 111 protruding from the horizontal hole.

[0046] As shown in Figure 4 In some optional embodiments, the horizontal hole of the T-shaped hole comprises a large cavity section and a small cavity section, the abutting section 111 is provided with an abutting boss 3, the diameter of the abutting boss 3 is smaller than the diameter of the large cavity section and larger than the diameter of the small cavity section.

[0047] In the embodiment, the transverse hole of the T-shaped inner hole comprises a large cavity section and a small cavity section, the abutting section 111 is provided with an abutting boss 3, the diameter of the abutting boss 3 is smaller than the diameter of the large cavity section and larger than the diameter of the small cavity section, thereby limiting the maximum distance of the movement of the abutting section 111 and increasing the structural stability of the auxiliary device for assembling the power assembly.

[0048] In some optional embodiments, a return spring is arranged at the stepped platform where the large cavity section and the small cavity section are connected, one end of the return spring is connected with the stepped platform, and the other end of the return spring abuts against the abutting boss 3, and the return spring is used to provide a resilient force for keeping the abutting section 111 moving towards the assembly 9.

[0049] In the embodiment, a return spring is arranged at the stepped platform where the large cavity section and the small cavity section are connected, one end of the return spring is connected with the stepped platform, and the other end of the return spring abuts against the abutting boss 3, and the return spring is used to provide a resilient force for keeping the abutting section 111 moving towards the assembly 9, when the vertical angle deviation value is greater than the vertical maximum deviation value, the abutting rods 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism are locked by driving the locking block 121 driven by the driving motor 122, according to the difference between the average value of the length of the abutting rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism and the length of the abutting rod 11 extending out of the mounting seat 13 in the auxiliary positioning assembly 1 of the vertical positioning mechanism, the required number of propulsion pulses is calculated, when the difference is negative, the assembly 9 and the to-be-assembled part 8 continue to move in the assembly direction by the required number of propulsion pulses, when the difference is positive, the assembly 9 and the to-be-assembled part 8 move in the reverse direction of the assembly direction by the required number of propulsion pulses through the return spring, until the vertical angle deviation value is less than the vertical maximum deviation value, and the locked abutting rod 11 is unlocked.

[0050] In the embodiment, a limiting boss 132 is arranged in the large cavity section, the limiting boss 132 is located on the side outward of the abutting boss 3, and is used to limit the abutting rod 11 from disengaging from the large cavity section.

[0051] As shown in the drawings, Figure 4 In some optional embodiments, a rack is arranged at the end of the mounting section 112 away from the abutting section 111, the mounting seat 13 is provided with an encoder 2, the rotor of the encoder 2 is engaged with the rack, and the encoder 2 can record the movement data when the mounting section 112 moves.

[0052] In the embodiment, a rack is arranged at the end of the mounting section 112 away from the abutting section 111, the mounting seat 13 is provided with an encoder 2, the rotor of the encoder 2 is engaged with the rack, and the encoder 2 can record the movement data when the mounting section 112 moves, and the maximum deviation value in the assembly process is recorded automatically after each assembly, which is used for tracing and is convenient for calculating the number of propulsion pulses.

[0053] As shown in the drawings, Figure 1 , Figure 2 ,Figure 3 and Figure 4 As shown in the drawings, in another aspect, the application also includes a mounting method for power assembly assembly, which is implemented by using the above-mentioned auxiliary device for power assembly assembly, comprising the following steps:

[0054] Moving the to-be-assembled part 8 to the assembled part 9;

[0055] Real-time acquisition of the length of the abutment rod 11 extending out of the mounting seat 13 in all auxiliary positioning assemblies 1, and conversion into real-time deviation values;

[0056] When the real-time deviation value is greater than the maximum deviation value, the length of the abutment rod 11 extending out of the mounting seat 13 in at least one of the auxiliary positioning assemblies 1 is locked by the adjusting mechanism 12, and the to-be-assembled part 8 is moved to adjust the length of the abutment rod 11 extending out of the mounting seat 13 in other auxiliary positioning assemblies 1, until the real-time deviation values converted from the length of the abutment rod 11 extending out of the mounting seat 13 in all auxiliary positioning assemblies 1 are less than the maximum deviation value.

[0057] When using the auxiliary device for power assembly assembly, at least three auxiliary positioning assemblies 1 are arranged on the outer periphery of the to-be-assembled part 8, the abutment rod 11 extends out of the mounting seat 13 at one end and is used to abut on the assembled part 9, and the adjusting mechanism 12 is used to lock or unlock the relative position of the abutment rod 11 and the mounting seat 13. Moving the to-be-assembled part 8 to the assembled part 9, real-time acquisition of the length of the abutment rod 11 extending out of the mounting seat 13 in all auxiliary positioning assemblies 1, and conversion into real-time deviation values; when the real-time deviation value is greater than the maximum deviation value, the length of the abutment rod 11 extending out of the mounting seat 13 in at least one of the auxiliary positioning assemblies 1 is locked by the adjusting mechanism 12, and the to-be-assembled part 8 is moved to adjust the length of the abutment rod 11 extending out of the mounting seat 13 in other auxiliary positioning assemblies 1, until the real-time deviation values converted from the length of the abutment rod 11 extending out of the mounting seat 13 in all auxiliary positioning assemblies 1 are less than the maximum deviation value. The adjustment accuracy is higher, the assembly accuracy is guaranteed, and the problem that the power assembly assembly tool in the prior art needs to be accurately positioned when the engine and the gearbox are placed on the tray, and the engine and the gearbox are deviated during the movement of the tray on the guide rail, which may cause uneven axial stress during assembly and further may cause flywheel failure, affecting the assembly accuracy and further causing power assembly failure is solved.

[0058] In some optional embodiments, when adjusting in the horizontal direction, the following steps are included:

[0059] According to the real-time acquisition of the length of the abutment rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism, the difference between the length of the abutment rod 11 extending out of the mounting seat 13 in the two auxiliary positioning assemblies 1 is obtained, and further the horizontal angular deviation value is obtained;

[0060] When the horizontal angle deviation value is greater than the horizontal maximum deviation value, the locking block 121 is driven by the driving motor 122 to lock the abutting rod 11 with shorter length of the extension mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism, the required propulsion pulse number is converted according to the difference of the length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1, the required propulsion pulse number is increased by the encoder 2 in the other auxiliary positioning assembly 1 due to the assembly force in the assembly process, until the horizontal angle deviation value is less than the horizontal maximum deviation value, and the locked abutting rod 11 is unlocked.

[0061] In the embodiment, the process of horizontal adjustment is specifically described. The length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism is obtained in real time, the difference of the length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1 is obtained, and then the horizontal angle deviation value is obtained. When the horizontal angle deviation value is greater than the horizontal maximum deviation value, the locking block 121 is driven by the driving motor 122 to lock the abutting rod 11 with shorter length of the extension mounting seat 13 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism, the required propulsion pulse number is converted according to the difference of the length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1, the required propulsion pulse number is increased by the encoder 2 in the other auxiliary positioning assembly 1 due to the assembly force in the assembly process, until the horizontal angle deviation value is less than the horizontal maximum deviation value, and the locked abutting rod 11 is unlocked.

[0062] In some optional embodiments, when the adjustment in the vertical direction is performed, the following steps are included:

[0063] According to the length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism obtained in real time, the mean value is calculated, and the length of the extension mounting seat 13 of the abutting rod 11 in the auxiliary positioning assembly 1 of the vertical positioning mechanism is obtained in real time. The mean value of the length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism obtained in real time is calculated, and the difference between the length of the extension mounting seat 13 of the abutting rod 11 in the auxiliary positioning assembly 1 of the vertical positioning mechanism obtained in real time, and the mean value of the length of the extension mounting seat 13 of the abutting rod 11 in the two auxiliary positioning assemblies 1 of the horizontal positioning mechanism obtained in real time is calculated, and then the vertical angle deviation value is obtained.

[0064] When the vertical angle deviation value is greater than the vertical maximum deviation value, the abutting rod 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism is locked by driving the locking block 121 by the driving motor 122, the required propulsion pulse number is converted according to the difference between the average of the length of the abutting rod 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism and the length of the abutting rod 11 of the auxiliary positioning assembly 1 in the vertical positioning mechanism, when the difference is negative, the assembly 9 and the to-be-assembled part 8 continue to advance in the assembly direction by the required propulsion pulse number, when the difference is positive, the assembly 9 and the to-be-assembled part 8 move in the reverse direction of the assembly direction, and the required propulsion pulse number is propelled by the return spring, until the vertical angle deviation value is less than the vertical maximum deviation value, and the locked abutting rod 11 is unlocked.

[0065] In the embodiment, the process of vertical adjustment is specifically described, the average of the length of the abutting rod 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism is calculated according to the real-time acquisition, and the difference between the average of the length of the abutting rod 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism and the length of the abutting rod 11 of the auxiliary positioning assembly 1 in the vertical positioning mechanism is calculated by real-time acquisition, and then the vertical angle deviation value is obtained; when the vertical angle deviation value is greater than the vertical maximum deviation value, the abutting rod 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism is locked by driving the locking block 121 by the driving motor 122, the required propulsion pulse number is converted according to the difference between the average of the length of the abutting rod 11 of the two auxiliary positioning assemblies 1 in the horizontal positioning mechanism and the length of the abutting rod 11 of the auxiliary positioning assembly 1 in the vertical positioning mechanism, when the difference is negative, the assembly 9 and the to-be-assembled part 8 continue to advance in the assembly direction by the required propulsion pulse number, when the difference is positive, the assembly 9 and the to-be-assembled part 8 move in the reverse direction of the assembly direction, and the required propulsion pulse number is propelled by the return spring, until the vertical angle deviation value is less than the vertical maximum deviation value, and the locked abutting rod 11 is unlocked.

[0066] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating 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 devices or elements 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. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of 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.

[0067] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0068] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. An auxiliary device for powertrain assembly, characterized in that, include: At least three auxiliary positioning components (1) are provided on the outer periphery of the part to be assembled (8) for adjusting the installation angle between the part to be assembled (8) and the assembly (9). The auxiliary positioning components (1) include: Mounting bracket (13); An abutment rod (11), one end of which extends out of the mounting base (13) and abuts against the assembly (9), and is retractable; Adjustment mechanism (12), which is connected to the abutment rod (11), is used to lock or unlock the relative position of the abutment rod (11) and the mounting base (13) to adjust the assembly angle of the assembly part (9) and the part to be assembled (8); The system includes three auxiliary positioning components (1), two of which are located on the same horizontal plane to form a horizontal positioning mechanism for positioning the installation angle of the assembly (9) and the part to be assembled (8) in the horizontal direction. The other auxiliary positioning component (1) is located below the horizontal positioning mechanism as a vertical positioning mechanism for cooperating with the horizontal positioning mechanism to position the installation angle of the assembly (9) and the part to be assembled (8) in the vertical direction. The mounting base (13) has a T-shaped inner hole. The adjustment mechanism (12) includes a locking block (121) and a drive motor (122). The output shaft of the drive motor (122) is connected to the locking block (121). The abutment rod (11) passes through the horizontal hole of the T-shaped inner hole. The locking block (121) is set in the vertical hole of the T-shaped inner hole and is used to abut against the abutment rod (11). The drive motor (122) is used to drive the locking block (121) to move in the vertical hole to lock or open the length of the abutment rod (11) extending out of the horizontal hole at one end of the assembly (9), thereby adjusting the assembly angle between the assembly (9) and the assembly to be assembled (8).

2. The auxiliary device for powertrain assembly as described in claim 1, characterized in that, The locking block (121) has a wedge-shaped surface at one end away from the drive motor (122), and a rectangular groove at the other end away from the drive motor (122). The abutment rod (11) includes an abutment section (111) and an installation section (112). One end of the abutment section (111) is used to abut against the assembly (9), and the other end is a wedge head that matches the wedge-shaped surface. The wedge head is connected to the installation section (112). The abutment section (111) and the installation section (112) are coaxially arranged. The installation section (112) passes through the rectangular groove. When the drive motor (122) drives the locking block (121) to move downward, the installation section (112) moves upward relative to the locking block (121) in the rectangular groove. The abutment section (111) is subjected to an assembly force and moves inward to change the length of the abutment section (111) extending out of the transverse hole.

3. An auxiliary device for powertrain assembly as described in claim 2, characterized in that, The transverse hole of the T-shaped inner hole includes a large cavity section and a small cavity section. The abutting section (111) is provided with an abutting boss (3). The diameter of the abutting boss (3) is smaller than the diameter of the large cavity section and larger than the diameter of the small cavity section.

4. An auxiliary device for powertrain assembly as described in claim 3, characterized in that, A return spring is provided at the stepped platform connecting the large cavity segment and the small cavity segment. One end of the return spring is connected to the stepped platform, and the other end abuts against the abutting boss (3). The return spring is used to provide a rebound force to keep the abutting segment (111) moving towards the assembly (9).

5. An auxiliary device for powertrain assembly as described in claim 2, characterized in that, The mounting section (112) is provided with a rack at one end away from the abutment section (111), and an encoder (2) is provided on the mounting base (13). The rotor of the encoder (2) meshes with the rack. When the mounting section (112) moves, the encoder (2) can record the movement data.

6. An installation method for a powertrain assembly, characterized in that, Implemented using an auxiliary device for powertrain assembly as described in any one of claims 1-5, the method includes the following steps: Move the part to be assembled (8) toward the part to be assembled (9); The length of the abutment rod (11) extending out of the mounting base (13) in all auxiliary positioning components (1) is obtained in real time and converted into a real-time deviation value; When making horizontal adjustments, the following steps are included: based on the real-time acquisition of the length of the abutment rod (11) of the two auxiliary positioning components (1) of the horizontal positioning mechanism extending out of the mounting seat (13), the difference in the length of the abutment rod (11) of the two auxiliary positioning components (1) extending out of the mounting seat (13) is obtained, and then the horizontal angle deviation value is obtained. When making vertical adjustments, the following steps are included: Calculate the average length of the abutment rod (11) extending out of the mounting seat (13) of the two auxiliary positioning components (1) of the horizontal positioning mechanism obtained in real time; and calculate the difference between the average length of the abutment rod (11) extending out of the mounting seat (13) of the two auxiliary positioning components (1) of the horizontal positioning mechanism obtained in real time and the length of the abutment rod (11) extending out of the mounting seat (13) of the auxiliary positioning component (1) of the vertical positioning mechanism obtained in real time, thereby obtaining the vertical angle deviation value. When the real-time deviation value is greater than the maximum deviation value, the length of the abutment rod (11) in at least one of the auxiliary positioning components (1) extending out of the mounting base (13) is locked by the adjustment mechanism (12), and the part to be installed (8) is moved to adjust the length of the abutment rod (11) in the other auxiliary positioning components (1) extending out of the mounting base (13) until the real-time deviation value converted from the length of the abutment rod (11) in all auxiliary positioning components (1) extending out of the mounting base (13) is less than the maximum deviation value.

7. The installation method for powertrain assembly as described in claim 6, characterized in that, When making horizontal adjustments, the following steps are also included: When the horizontal angle deviation is greater than the maximum horizontal deviation, the locking block (121) is driven by the drive motor (122) to lock the shorter abutment rod (11) of the two auxiliary positioning components (1) in the horizontal positioning mechanism. The required number of push pulses is calculated based on the difference in the length of the abutment rod (11) of the two auxiliary positioning components (1) extending from the mounting seat (13). The assembly force during the assembly process causes the encoder (2) in the other auxiliary positioning component (1) to increase the required number of push pulses until the horizontal angle deviation is less than the maximum horizontal deviation, and the locked abutment rod (11) is unlocked.

8. The installation method for powertrain assembly as described in claim 6, characterized in that, When making vertical adjustments, the following steps are also included: When the vertical angle deviation is greater than the maximum vertical deviation, the locking block (121) is driven by the drive motor (122) to lock the abutment rods (11) of the two auxiliary positioning components (1) in the horizontal positioning mechanism. The number of push pulses required is calculated based on the average length of the abutment rods (11) of the two auxiliary positioning components (1) of the horizontal positioning mechanism extending out of the mounting seat (13) and the difference between the length of the abutment rods (11) of the auxiliary positioning components (1) of the vertical positioning mechanism extending out of the mounting seat (13) obtained in real time. When the difference is negative, the assembly part (9) and the part to be assembled (8) continue to push forward the required number of push pulses in the assembly direction. When the difference is positive, the assembly part (9) and the part to be assembled (8) move in opposite directions in the assembly direction and push forward the required number of push pulses through the return spring until the vertical angle deviation is less than the maximum vertical deviation, and the locked abutment rods (11) are unlocked.

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