A multi-stage parts assembly apparatus and method

Abstract

The application relates to the technical field of mechanical processing process equipment, and discloses a multi-stage part assembling device and method, which comprises a device main body, one end of the device main body is provided with a plurality of electric telescopic pins arranged in a ring shape, the other end of the device main body is provided with an angle indexing device, the output end of the angle indexing device is provided with a base platform, the base platform is provided with through holes corresponding to the positions of the plurality of electric telescopic pins, one end of the base platform is provided with a sliding rail positioning assembly, and a plurality of locking assemblies are slidably arranged on the sliding rail positioning assembly; through the stage-by-stage processing and detection mechanism, the part is clamped for the first time, drilling is carried out, the part is taken down for detection by means of an auxiliary lifting mechanism to reduce error superposition, the electric telescopic pins are used for positioning when the part is clamped for the second time, the deviation is judged in combination with the inspection assembly, and the adjusting assembly is used for adjusting, so that the problems of cumulative error of multi-layer part stacking hole system processing, unverifiable intermediate state and high rework cost are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing process equipment, in particular to a multi-stage part assembly device and method. BACKGROUND

[0002] In the patent No. CN202123441184.X, a vertical assembly tool for multi-stage pump is provided, which comprises a mounting platform, a cavity is formed in the mounting platform for vertically inserting one end of the pump shaft, a support plate is arranged at the bottom of the cavity, a first lifting mechanism is arranged on the support plate and abuts against the end of the pump shaft to support and adjust the up-down position of the pump shaft, a second lifting mechanism is arranged on the mounting platform outside the cavity and abuts against the end face of the mounting part at the bottom of the pump shaft to support and adjust the level of the mounting part. The vertical assembly tool for multi-stage pump is designed to assemble in a vertical stacking manner to facilitate the centering of the parts and to fix the parts by using their own weight, thereby reducing the assembly difficulty and improving the work efficiency.

[0003] In the prior art including the above-mentioned patent, when multi-stage parts need to be fixed by riveting through a precision hole system during the assembly process of complex components, the traditional processing method usually adopts the one-time drilling method after overall assembly.

[0004] However, this method has the following technical defects: cumulative error is easily generated during hole system processing of multi-layer parts stacking, the intermediate assembly state cannot be verified, and the repair cost is high when processing error occurs. SUMMARY

[0005] The problem to be solved by the present application is the cumulative error of multi-layer part stacking hole system processing, the intermediate state cannot be verified, and the high repair cost.

[0006] To solve the above technical problems, the technical scheme of the present application is as follows:

[0007] A multi-stage part assembly device, comprising a device main body, a plurality of electric telescopic pins arranged in a ring shape are arranged at one end of the device main body, an angle indexing device is arranged at the other end of the device main body, a base platform is arranged at the output end of the angle indexing device, a plurality of through holes corresponding to the positions of the plurality of electric telescopic pins are arranged on the base platform, a slide rail positioning assembly is arranged at one end of the base platform, and a plurality of locking assemblies are slidably arranged on the slide rail positioning assembly.

[0008] The locking assembly comprises a clamping block, a laser marking instrument is arranged in the inner cavity of the clamping block, a marking assembly is arranged at one end of the clamping block, an inspection assembly is arranged on the side wall of the clamping block, and an adjusting drive motor is arranged at the other end of the clamping block.

[0009] Preferably, a plurality of said electric telescopic pins are located at the top end of the device body, and the top end of the device body is also provided with a dust suction pump, a drilling end, a first adjusting assembly and a second adjusting assembly;

[0010] The bottom end of the drilling end is sleeved with a dust suction cover, the bottom end of the dust suction cover is provided with an opening, and the top end side wall of the dust suction cover is in communication with the input end of the dust suction pump through a hose; the first adjusting assembly and the second adjusting assembly are respectively arranged on the two sides of the base platform, and a pneumatic push rod is arranged on the side wall of each of the first adjusting assembly and the second adjusting assembly, a reduction motor is arranged at the bottom end of the pneumatic push rod, and a rubber wheel is arranged at the output end of the reduction motor.

[0011] Preferably, a plurality of said electric telescopic pins are located at the top end of the device body, and the top end of the device body is also provided with a dust suction pump, a drilling end, a first adjusting assembly and a second adjusting assembly;

[0012] Preferably, the slide rail positioning assembly comprises a center positioning seat, the center positioning seat is located in the inner cavity of the first circular opening, a second circular opening is formed in the center of the center positioning seat, a plurality of slide arms are arranged on the outer side wall of the center positioning seat, a sliding groove is formed in the inner cavity of each of the slide arms, an installation plate is arranged at the tail end of the sliding groove, and the other side of the installation plate is installed on the adjusting drive motor.

[0013] Preferably, the bottom end of the clamping block is provided with a sliding block, the sliding block is slidably connected in the inner cavity of the sliding groove, a screw rod is threadedly connected to the sliding block, one end of the screw rod is rotatably connected to the inner side wall of the sliding groove, and the other end of the screw rod is installed on the power shaft of the installation plate.

[0014] Preferably, one side of the clamping block is arc-shaped, and a strip-shaped opening and an installation opening are formed in the arc-shaped side wall of the clamping block.

[0015] Preferably, the marking assembly comprises a rotating disc, the rotating disc is rotatably connected in the inner cavity of the installation opening, a pneumatic telescopic rod is arranged on one end side wall of the rotating disc, the input end of the pneumatic telescopic rod is connected with a gas pump through a hose, and an alloy marking head is arranged at the output end of the pneumatic telescopic rod.

[0016] One end of the rotating disc is engaged with a transmission gear, the transmission gear is rotatably connected to the inner side wall of the installation opening, a marking drive motor is arranged at the other end of the transmission gear, and the marking drive motor is arranged on the side wall of the clamping block.

[0017] Preferably, the inspection assembly comprises a mounting bracket, the bottom end of the mounting bracket is installed on the clamping block, a laser emitter is arranged at the top end of the mounting bracket, and an observation camera is also arranged at the top end of the mounting bracket.

[0018] A method for a multi-stage part assembly device, comprising the following operation steps:

[0019] S1: First, the first and second stage parts are prevented on the base platform, and the adjusting drive motor is started to clamp the first and second stage parts;

[0020] S2: The drilling end is started, the first and second stage parts are drilled, and at the same time, the angle indexing device is started, the base platform is driven to rotate at a fixed angle by the angle indexing device, and the first batch of multiple holes on the first and second stage parts are machined;

[0021] S3: Next, the laser marking instrument is started, the outer sidewall of the first and second stage parts is marked by laser marking, and the mark drive motor is started to drive the alloy mark head to swing, and the top end of the second stage part is positioned and marked; then the auxiliary lifting mechanism is started, the first and second stage parts are lifted, and after the first and second stage parts are taken down, the detection of whether the punching position quality is qualified is carried out;

[0022] S4: The first and second stage parts are combined after installing and marking positioning, and then placed on the base platform, the electric telescopic pin is inserted into the hole, the pin positioning is carried out, and the laser irradiation positioning of the inspection assembly and the scratch position corresponding to the air pressure telescopic rod are observed to observe whether there is a combination position deviation problem, if there is a deviation, the first and second adjusting assemblies are started to adjust the position of the second stage part, and after the position is completely consistent;

[0023] S5: The third stage part is placed to continue drilling the third stage part, and the third stage part is marked by the above method.

[0024] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0025] 1、The first and second stage parts are clamped and drilled at the first clamping, and the auxiliary lifting mechanism is used to facilitate the detection, so that the quality problem of the punching position can be found and handled in time, the error accumulation is reduced from the source, and the small error accumulation is avoided; in the second clamping stage, the parts are combined according to the marking, the electric telescopic pin is positioned, the laser irradiation of the inspection assembly, the observation camera and the scratch reference of the marking assembly are used to accurately judge the position deviation, if there is a deviation, the first and second adjusting assemblies are used to drive the rubber wheel to adjust, and the position is completely consistent before machining, which can not only avoid the subsequent machining errors caused by position deviation, but also greatly reduce the repair cost caused by too large final machining error, at the same time, the step-by-step detection and adjustment mechanism ensures the precision of each stage part assembly, improves the overall product qualification rate, reduces the time and material waste problems caused by rework, and improves the machining efficiency.

[0026] 2、The locking assembly of the present application adjusts the driving motor to drive the screw rod to rotate, so that the sliding block drives the clamping block to move in the sliding groove of the sliding support arm, the arc surfaces of the plurality of clamping blocks can simultaneously approach the parts and achieve clamping, it is not necessary to adjust the clamping opening size according to the stacking height of the parts, the arc surfaces will naturally push the parts to approach each other when they are in contact, the stable clamping of the first and second level parts of different specifications can be quickly completed, the clamping time is greatly shortened, the operation difficulty is reduced, the stable clamping state can reduce the shaking of the parts during machining, the precision of drilling, marking and other processes is ensured, and the overall machining efficiency and product quality are improved, especially suitable for the scene of quickly clamping and machining of various parts in batch production, and has outstanding advantages in quickly adapting to clamping. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 For the overall structure of the present application Figure 1 ;

[0028] Figure 2 For the overall structure of the present application Figure 2 ;

[0029] Figure 3 For Figure 2 the enlarged structure diagram of A in the present application;

[0030] Figure 4 For Figure 2 the enlarged structure diagram of B in the present application;

[0031] Figure 5 For the through hole and electric telescopic pin structure of the present application;

[0032] Figure 6 For the base platform and clamping groove structure of the present application;

[0033] Figure 7 For the electric telescopic pin structure of the present application;

[0034] Figure 8 For the connection structure diagram of the slide rail positioning assembly and auxiliary lifting mechanism of the present application;

[0035] Figure 9 For the slide block and screw rod structure of the present application;

[0036] Figure 10 For the locking assembly structure of the present application;

[0037] Figure 11 For the marking assembly structure of the present application.

[0038] In the figure: 1, device main body; 11, electric telescopic pin; 12, dust suction pump; 13, drilling end; 131, dust suction cover; 14, first adjusting assembly; 141, air pressure push rod; 142, speed reduction motor; 143, rubber wheel; 15, second adjusting assembly; 2, angle indexing device; 3, base platform; 4, slide rail positioning assembly; 41, center positioning seat; 42, sliding support arm; 43, mounting plate; 5, locking assembly; 51, clamping block; 511, sliding block; 512, screw rod; 52, laser marking instrument; 53, marking assembly; 531, rotating disc; 532, air pressure telescopic rod; 533, alloy marking head; 534, transmission gear; 535, marking drive motor; 541, mounting frame; 542, laser emitter; 543, observation camera; 54, inspection assembly; 55, adjusting drive motor; 6, auxiliary lifting mechanism. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the protection scope of the present disclosure.

[0040] Unless otherwise defined, technical or scientific terms used in the present disclosure should have the ordinary meaning commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms “comprise”, “comprising”, and the like in the present disclosure mean that the elements or objects before the word encompass the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. The terms “connected” or “connected” and the like are not limited to physical or mechanical connections, but also include electrical connections, whether direct or indirect. The terms “up”, “down”, “left”, “right”, and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0041] As Figures 1 to 11As shown, the multi-stage part assembling device provided by the application comprises a device main body 1, a plurality of electric telescopic pins 11 arranged in a ring shape are arranged at one end of the device main body 1, an angle indexing device 2 is arranged at the other end of the device main body 1, a base platform 3 is arranged at the output end of the angle indexing device 2, a plurality of through holes corresponding to the positions of the plurality of electric telescopic pins 11 are arranged on the base platform 3, a slide rail positioning assembly 4 is arranged at one end of the base platform 3, and a plurality of locking assemblies 5 are slidably arranged on the slide rail positioning assembly 4; the electric telescopic pins 11 can be matched with the through holes on the base platform 3 to realize accurate pin positioning of parts, the angle indexing device 2 can drive the base platform 3 to rotate at a fixed angle, which facilitates multi-position machining of parts, and the slide rail positioning assembly 4 and the locking assembly 5 can be matched to realize stable clamping of parts, and the overall structure layout is reasonable, thereby providing a stable and reliable basis for part machining.

[0042] The locking assembly 5 comprises a clamping block 51, a laser marking instrument 52 is arranged in the inner cavity of the clamping block 51, a marking assembly 53 is arranged at one end of the clamping block 51, an inspection assembly 54 is arranged on the side wall of the clamping block 51, and an adjusting driving motor 55 is arranged at the other end of the clamping block 51. The clamping block 51 is the core component of the locking assembly, and integrates the laser marking instrument 52, the marking assembly 53, the inspection assembly 54 and the adjusting driving motor 55, thereby realizing the integration of clamping, marking and inspection functions, reducing the dispersibility of device components, and improving the space utilization rate and the continuity of operation.

[0043] Further, the plurality of electric telescopic pins 11 are located at the top end of the device main body 1, and a dust suction pump 12, a drilling end 13, a first adjusting assembly 14 and a second adjusting assembly 15 are further arranged at the top end of the device main body 1.

[0044] The drilling end 13 is sleeved with a dust cover 131, the bottom end of the dust cover 131 is provided with an opening, and the top end side wall of the dust cover 131 is in communication with the input end of the dust suction pump 12 through a hose; the first adjusting assembly 14 and the second adjusting assembly 15 are arranged on the two sides of the base platform 3 respectively, and the side wall of each of the first adjusting assembly 14 and the second adjusting assembly 15 is provided with a pneumatic push rod 141, the bottom end of the pneumatic push rod 141 is provided with a speed reducer 142, and the output end of the speed reducer 142 is provided with a rubber wheel 143. The dust suction pump 12 is matched with the dust cover 131, can timely suck away the drillings generated during drilling, keeps the machining environment clean, and reduces the influence of the drillings on the machining precision; the first adjusting assembly 14 and the second adjusting assembly 15 can flexibly adjust the position of the part through the cooperation of the pneumatic push rod 141, the speed reducer 142 and the rubber wheel 143, thereby ensuring the accuracy of the part machining position.

[0045] Further, the top end of the base platform 3 is provided with a radial clamping groove, and a first circular opening is formed in the center of the clamping groove. The radial clamping groove facilitates the preliminary positioning and limiting of parts of different shapes and sizes, preventing the parts from sliding laterally during processing. The first circular opening in the center provides space for the installation and operation of other components, enhancing the practicality and compatibility of the base platform 3.

[0046] Further, the slide rail positioning assembly 4 includes a central positioning seat 41 located in the inner cavity of the first circular opening. A second circular opening is formed in the center of the central positioning seat 41. A plurality of sliding arms 42 are provided on the outer side wall of the central positioning seat 41. A sliding groove is formed in the inner cavity of each sliding arm 42. An installation plate 43 is provided at the tail end of the sliding groove. The other side of the installation plate 43 is mounted on the adjustment driving motor 55. The central positioning seat 41 provides stable central support for the slide rail positioning assembly 4. The design of the plurality of sliding arms 42 and the sliding groove allows the locking assembly 5 to slide along the sliding groove, achieving clamping adaptation for parts of different sizes. The installation plate 43 provides a stable mounting position for the adjustment driving motor 55, ensuring the stability of power transmission.

[0047] Further, the bottom end of the clamping block 51 is provided with a sliding block 511 that is slidingly connected in the inner cavity of the sliding groove. A screw rod 512 is threadedly connected to the sliding block 511. One end of the screw rod 512 is rotatably connected to the inner side wall of the sliding groove. The other end of the screw rod 512 is mounted on the power shaft of the installation plate 43. The sliding block 511 slidingly cooperates with the sliding groove, and the screw rod 512 threadedly transmits power, allowing the adjustment driving motor 55 to accurately drive the clamping block 51 to move, achieving precise clamping of the parts. The threaded transmission has the characteristics of stable transmission and high precision, ensuring the controllability of clamping force and position.

[0048] Further, one side of the clamping block 51 is arc-shaped. A strip-shaped opening and an installation opening are formed in the arc-shaped side wall of the clamping block 51. The arc-shaped side wall can better fit the surface of the part, improving the stability of clamping. The strip-shaped opening and the installation opening provide space for the installation and operation of the laser marking instrument 52 and the marking assembly 53, ensuring the normal functioning of the components.

[0049] Further, the marking assembly 53 includes a rotating disc 531 rotatably connected in the inner cavity of the installation opening. A pneumatic telescopic rod 532 is provided on one end of the side wall of the rotating disc 531. The input end of the pneumatic telescopic rod 532 is connected to a gas pump through a hose. The output end of the pneumatic telescopic rod 532 is provided with an alloy marking head 533.

[0050] The end of the rotating disc 531 is engaged with a transmission gear 534, the transmission gear 534 is rotationally connected to the inner side wall of the mounting opening, the other end of the transmission gear 534 is provided with a marking drive motor 535, and the marking drive motor 535 is arranged on the side wall of the clamping block 51. The marking drive motor 535 drives the rotating disc 531 to rotate through the transmission gear 534, can drive the alloy marking head 533 to swing, realizes multi-angle marking, and the air pressure telescopic rod 532 can adjust the contact force of the alloy marking head 533 and the part, ensures that the marking is clear and does not damage the part, improves the flexibility and reliability of the marking.

[0051] Further, the inspection assembly 54 includes a mounting frame 541, the bottom end of the mounting frame 541 is mounted on the clamping block 51, the top end of the mounting frame 541 is provided with a laser emitter 542, and the top end of the mounting frame 541 is also provided with an observation camera 543. The laser emitter 542 can emit laser for positioning, providing an intuitive reference for part position calibration, the observation camera 543 facilitates personnel to remotely observe the part processing and assembly state, discovers problems in time, and the convenience and accuracy of part inspection are improved by cooperation of the two.

[0052] A method of a multi-stage part assembly device, including operation process steps as follows:

[0053] S1: first, the first and second stage parts are prevented on the base platform 3, the adjusting drive motor 55 is started, and the first and second stage parts are clamped; this step quickly realizes part clamping by adjusting the drive motor 55 to drive the clamping assembly, is simple and fast to operate, can quickly enter the processing state, and improves the efficiency of the processing preparation stage.

[0054] S2: the drilling end 13 is started, the first and second stage parts are drilled, and the angle indexing device 2 is started at the same time, the base platform 3 is driven to rotate at a fixed angle by the angle indexing device 2, and the first batch of multiple holes on the first and second stage parts are processed; the drilling end 13 cooperates with the angle indexing device 2, can complete the processing of multiple holes on the part at one time, does not need to adjust the part position multiple times, reduces the clamping times, and improves the drilling efficiency and the consistency of the hole position.

[0055] S3: Next, start the laser marker 52, and through the laser marker 52, laser mark the first and second level part outer side wall for positioning, and start the mark driving motor 535 to drive the alloy mark head 533 to swing, and mark the second level part top end for positioning; then start the auxiliary lifting mechanism 6 to lift the first and second level parts, and after personnel take down the first and second level parts, detect whether the punching position quality is qualified; the laser marker 52 and the alloy mark head 533 mark the parts to provide accurate positioning reference for subsequent assembly, the auxiliary lifting mechanism 6 facilitates personnel to take down the parts for quality detection, can timely find the punching quality problem, avoids unqualified parts into subsequent processes, and ensures product quality.

[0056] S4: The first and second level parts are combined after installation and marking positioning, and then placed on the base platform 3, the electric telescopic pin 11 is inserted into the hole to perform pin positioning, and through the laser irradiation positioning of the inspection assembly 54 and the scratch position corresponding to the reference, whether there is a combination position deviation problem is observed, when deviation occurs, the first adjusting assembly 14 and the second adjusting assembly 15 are started to adjust the position of the second level part, and after the position is adjusted to be completely consistent; the pin positioning of the electric telescopic pin 11 and the reference cooperation of the inspection assembly 54 can accurately judge whether the part combination position is deviated, the first and second adjusting assemblies 15 can timely adjust the deviated position, ensure the part combination precision, and provide reliable guarantee for subsequent processing and assembly.

[0057] S5: Place the third level part to continue drilling the third level part, and mark the third level part through the above method. The same processing and marking method as the first and second level parts is adopted, the consistency and continuity of multi-level part processing are ensured, the subsequent multi-level part assembly is facilitated, and the overall assembly efficiency and precision are improved.

[0058] The working principle and use process of the application are as follows:

[0059] First clamping stage: first, the first and second parts are prevented on the base platform 3, the adjusting drive motor 55 is started, the power output drive screw 512 of the adjusting drive motor 55 is driven to rotate, the sliding block 511 moves horizontally in the sliding groove, so that the arc surface side of the plurality of clamping blocks 51 simultaneously approaches the first and second parts, and the first and second parts are clamped; through the clamping mode, rapid and stable clamping can be realized, the clamping efficiency is improved, the arc surface is provided, and when the first and second parts are pushed to approach each other when they are in contact, it is not necessary to adjust the size of the clamping opening according to the height of the first and second parts stacked, the operation difficulty is reduced, and the clamping efficiency is improved; at this time, the drilling end 13 is started, the first and second parts are drilled, and the angle indexing device 2 is started at the same time, the base platform 3 is driven to rotate at a fixed angle by the angle indexing device 2, and the first and second parts are machined on the first batch of holes; next, the laser marking instrument 52 is started, the outer side wall of the first and second parts is marked by the laser marking instrument 52, and the marking assembly 53 is extended and in contact with the top end of the second part; at this time, the marking drive motor 535 is started, the transmission gear 534 is driven to rotate by the marking drive motor 535, the pneumatic telescopic rod 532 and the alloy marking head 533 are driven to swing by the transmission gear 534 and the rotating disc 531, the gas pump delivers gas to the pneumatic telescopic rod 532 through the hose, the bottom end of the alloy marking head 533 is in contact with the top end of the second part, the top end of the second part is scratched, and the marking is performed; then the auxiliary lifting mechanism 6 is started, the first and second parts are lifted, and the personnel can take down the first and second parts to detect whether the punching position quality is qualified;

[0060] Second clamping stage: the first and second parts are combined and placed on the base platform 3, the electric telescopic pin 11 is inserted into the hole and positioned, and the laser emitter 542 emits laser light to the line of position, the personnel can remotely observe the current part position through the observation camera 543, and the laser irradiation position and the scratch position of the pneumatic telescopic rod 532 are correspondingly observed to observe whether there is a problem of position deviation;

[0061] It should be noted that when the offset occurs, the starting air pressure push rod 141 is elongated to push the speed reducer motor 142 to move to the bottom end, and the rubber wheel 143 is in contact with the top end of the second part, the part is pushed to rotate and adjust the angle, and the marks are coincided and corresponding, and after adjusting to the completely consistent position, the third part is placed to continue drilling processing of the third part, and the third part is marked by the above method, after marking by the above method, the three parts can be positioned and clamped, processed, maintained, etc. by the marks during processing during later assembly, disassembly and installation, which reduces the difficulty of later assembly, secondly, the processing quality of the second part interlayer between the first and third parts can be detected after the first and second parts are processed, which avoids the problem that one-time processing cannot be preliminarily detected, improves the product qualification rate, and the clamping method is simple and fast, which can reduce the repeated clamping time, shorten the single-piece processing cycle, and significantly improve the processing precision.

[0062] The above examples are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. A multi-stage parts assembly device, characterized in that: The device includes a main body (1), one end of which is provided with a plurality of electric telescopic pins (11) arranged in a ring, and the other end of which is provided with an angle indexing device (2). The output end of the angle indexing device (2) is provided with a base platform (3). The base platform (3) is provided with through holes corresponding to the positions of the plurality of electric telescopic pins (11). One end of the base platform (3) is provided with a slide rail positioning assembly (4). A plurality of locking assemblies (5) are slidably provided on the slide rail positioning assembly (4). The locking assembly (5) includes a clamping block (51), the inner cavity of the clamping block (51) is provided with a laser marking instrument (52), one end of the clamping block (51) is provided with a marking assembly (53), the side wall of the clamping block (51) is provided with an inspection assembly (54), and the other end of the clamping block (51) is provided with an adjustment drive motor (55).

2. The multi-stage parts assembly device according to claim 1, characterized in that: Multiple electric telescopic pins (11) are located at the top of the device body (1), and the top of the device body (1) is also provided with a dust pump (12), a drilling end (13), a first adjustment component (14), and a second adjustment component (15). The bottom end of the drill end (13) is fitted with a dust suction hood (131), the bottom end of the dust suction hood (131) is open, and the top side wall of the dust suction hood (131) is connected to the input end of the dust suction pump (12) through a hose; the first adjustment component (14) and the second adjustment component (15) are respectively located on both sides of the base platform (3), and the side walls of the first adjustment component (14) and the second adjustment component (15) are each provided with a pneumatic push rod (141), the bottom end of the pneumatic push rod (141) is provided with a reduction motor (142), and the output end of the reduction motor (142) is provided with a rubber wheel (143).

3. The multi-stage parts assembly device according to claim 1, characterized in that: The top of the base platform (3) is provided with radially arranged slots, and the center of the slots is provided with a first circular opening.

4. The multi-stage parts assembly device according to claim 3, characterized in that: The slide rail positioning assembly (4) includes a central positioning seat (41), which is located in the inner cavity of the first circular opening. The center of the central positioning seat (41) has a second circular opening. Multiple sliding arms (42) are provided on the outer side wall of the central positioning seat (41). Each sliding arm (42) has a sliding groove in its inner cavity. The tail end of the sliding groove is provided with a mounting plate (43). The other side of the mounting plate (43) is mounted on the adjustment drive motor (55).

5. A multi-stage parts assembly device according to claim 4, characterized in that: The bottom end of the clamping block (51) is provided with a slider (511), which is slidably connected to the inner cavity of the slide groove. The slider (511) is threadedly connected to a screw (512). One end of the screw (512) is rotatably connected to the inner wall of the slide groove, and the other end of the screw (512) is mounted on the power shaft of the mounting plate (43).

6. The multi-stage parts assembly device according to claim 5, characterized in that: One side of the clamping block (51) is arc-shaped, and a strip-shaped opening and an installation opening are provided on the arc-shaped side wall of the clamping block (51).

7. A multi-stage parts assembly device according to claim 2, characterized in that: The marking assembly (53) includes a rotating disk (531) which is rotatably connected to the inner cavity of the mounting opening. A pneumatic telescopic rod (532) is provided on one side wall of the rotating disk (531). The input end of the pneumatic telescopic rod (532) is connected to an air pump through a hose, and the output end of the pneumatic telescopic rod (532) is provided with an alloy marking head (533). One end of the rotating disk (531) is engaged with a transmission gear (534), which is rotatably connected to the inner sidewall of the mounting opening. The other end of the transmission gear (534) is provided with a marking drive motor (535), which is located on the sidewall of the clamping block (51).

8. A multi-stage parts assembly device according to claim 1, characterized in that: The inspection component (54) includes a mounting bracket (541), the bottom end of which is mounted on a clamping block (51), and a laser emitter (542) is provided at the top end of the mounting bracket (541). An observation camera (543) is also provided at the top end of the mounting bracket (541).

9. An assembly method based on the multi-level parts assembly device according to claim 7, characterized in that: The operational process steps are as follows: S1: First, place the first and second level parts on the base platform (3), start the adjustment drive motor (55) to clamp the first and second level parts; S2: Start the drilling end (13) to drill holes in the first and second level parts. At the same time, start the angle indexing device (2) to drive the base platform (3) to rotate at a fixed angle to complete the processing of the first batch of multiple holes on the first and second level parts. S3: Next, start the laser marking machine (52), use the laser marking machine (52) to laser mark and position the outer walls of the first and second level parts, and start the marking drive motor (535) to drive the alloy marking head (533) to swing and mark the top of the second level part; then start the auxiliary lifting mechanism to lift the first and second level parts, and after the personnel remove the first and second level parts, check whether the hole position quality is qualified; S4: After assembling the first and second level parts by marking and positioning, and placing them on the base platform (3), start the electric telescopic pin (11) to insert into the hole for pin positioning. By checking the laser irradiation positioning of the component (54) and the corresponding position of the scratch on the pneumatic telescopic rod (532), observe whether there is a problem of misalignment in the assembly position. If misalignment occurs, start the first adjustment component (14) and the second adjustment component (15) to adjust the position of the second level parts until the position is completely consistent. S5: Place the third-level part and continue drilling the third-level part, and mark the third-level part in the above manner.

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