A machining machine for a chair base assembly

Abstract

The application discloses a processing machine for chair base assemblies, which is simple in structure and easy to realize. The second force cylinder rotating mechanism is arranged to facilitate the rotation of the force cylinder of the chair base assembly on the second work station from top to bottom, and the mechanical pipeline rotating function is realized, which is beneficial to improve the work efficiency. The third force cylinder clamping mechanism is arranged to facilitate the clamping of the force cylinder of the chair base assembly on the third work station from one side of the front and back, so that the position of the first up-and-down nail body in the force cylinder can be corrected, the design is reasonable, the subsequent first nail body rotating mechanism does not hinder the rotating riveting of the upper end of the first up-and-down nail body in the force cylinder clamped on the third work station, and the utility is good. The second nail body pressing and rotating riveting mechanism and the third nail body pressing and rotating riveting mechanism are arranged to facilitate the realization of the mechanical pipeline riveting function of the front-and-back nail body on the chair base assembly, which is beneficial to improve the work efficiency and has high utility.

Description

TECHNICAL FIELD

[0001] The present application relates to a processing machine for chair base assembly. BACKGROUND

[0002] At present, the force cylinder of the existing chair base assembly is mainly twisted by hand offline or twisted by hand combined with electric knob appliance offline, which does not realize mechanized assembly line knob and is inconvenient to improve work efficiency. In addition, the various nail bodies on the chair base assembly are also riveted by hand combined with rivet machine, which also does not realize mechanized assembly line riveting and is inconvenient to improve work efficiency.

[0003] Therefore, how to overcome the above-mentioned defects has become an important topic for technicians in the field to solve. SUMMARY

[0004] The present application overcomes the shortcomings of the above-mentioned technology and provides a processing machine for chair base assembly.

[0005] In order to achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0006] A processing machine for chair base assembly, comprising a rack 1, the rack 1 is provided with first station 21, second station 22, third station 23, fourth station 24, fifth station 25 and sixth station 26 which are distributed left and right in sequence for placing chair base assembly 100, the rack 1 is provided with first transfer mechanism 3 which can synchronously move chair base assembly 100 on the first station 21 to the fifth station 25 to the corresponding second station 22 to the sixth station 26, the rack 1 is provided with second force cylinder twisting mechanism 4 for twisting force cylinder 101 on the second station 22 from top to bottom, third force cylinder clamping mechanism 5 for clamping force cylinder 101 on the third station 23 from one side of front and back to correct the position of first up-down nail body 102, first nail body riveting mechanism 6 for riveting the upper end of first up-down nail body 102 in force cylinder 101 on the third station 23, second nail body pressing and riveting mechanism 7 for pressing one end of second front-back nail body 103 on the fourth station 24 and riveting the other end, and third nail body pressing and riveting mechanism 8 for pressing one end of third front-back nail body 104 on the fifth station 25 and riveting the other end.

[0007] Preferably, the first station 21, the second station 22, the third station 23, the fourth station 24, the fifth station 25 are positioning seat bodies respectively, and the sixth station 26 is a positioning seat body or a position on a workpiece transmission line, and the first transfer mechanism 3 comprises a first movable seat 31 arranged on the rack 1 and capable of moving left and right, a first driver 32 for driving the first movable seat 31 to move left and right, a front and rear side supporting piece 34 for lifting and lowering the chair base assembly 100 on the station from the front and rear sides being driven and connected to the first movable seat 31 through a lifter 33, and the supporting piece 34 extending left and right.

[0008] Preferably, the upper end faces of the first station 21, the second station 22, the third station 23, the fourth station 24, and the fifth station 25 are respectively provided with a plurality of positioning columns 20, and the upper ends of the positioning columns 20 are provided with upper end heads with an outer contour gradually thickening from top to bottom.

[0009] Preferably, the edge of the upper end of the supporting piece 34 close to the station side is concavely provided with a plurality of left and right arranged limiting notches 341 for supporting the chair base assembly 100.

[0010] Preferably, the second return force cylinder rotating mechanism 4 comprises a second movable seat 41 capable of approaching and moving away from the second station 22 from above, a second driver 42 for driving the second movable seat 41 to approach and move away from the second station 22 from above, and a rotating tool 44 for rotating the return force cylinder 101 of the chair base assembly 100 on the second station 22 being driven and connected to the second movable seat 41 through a third driver 43.

[0011] Preferably, the third return force cylinder clamping mechanism 5 comprises a third movable seat 51 capable of moving forward and backward to approach and move away from the third station 23, a fourth driver 52 for driving the third movable seat 51 to move forward and backward, and a clamping jaw assembly 53 for clamping and releasing the return force cylinder 101 of the chair base assembly 100 on the third station 23 being arranged on the third movable seat 51.

[0012] Preferably, the third station 23 is provided with a third protrusion 231 for the lower end of the first up and down nail body 102 of the chair base assembly 100 to abut against, and the first nail body rotating mechanism 6 comprises a fourth movable seat 61 capable of approaching and moving away from the third station 23 from above, a fifth driver 62 for driving the fourth movable seat 61 to approach and move away from the third station 23 from above, and a first rotating head 64 for rotating and riveting the upper end of the first up and down nail body 102 of the chair base assembly 100 on the third station 23 being driven and connected to the fourth movable seat 61 through a sixth driver 63.

[0013] Preferably, the second rivet body pressing and spinning mechanism 7 comprises a second pressing head 71 capable of moving forward and backward on one side of the fourth station 24 to press the one end of the second forward and backward rivet body 103 of the chair base assembly 100 on the fourth station 24, a seventh driver 72 for driving the second pressing head 71 to move forward and backward, a fifth movable seat 73 capable of moving forward and backward on the other side of the fourth station 24 to approach away from the fourth station 24, an eighth driver 74 for driving the fifth movable seat 73 to move forward and backward, and a second spinning head 76 connected on the fifth movable seat 73 through a ninth driver 75 for spinning the other end of the second forward and backward rivet body 103 of the chair base assembly 100 on the fourth station 24.

[0014] Preferably, the third rivet body pressing and spinning mechanism 8 comprises a third pressing head 81 capable of moving forward and backward on one side of the fifth station 25 to press the one end of the third forward and backward rivet body 104 of the chair base assembly 100, a tenth driver 82 for driving the third pressing head 81 to move forward and backward, a sixth movable seat 83 capable of moving forward and backward on the other side of the fifth station 25 to approach away from the fifth station 25, an eleventh driver 84 for driving the sixth movable seat 83 to move forward and backward, and a third spinning head 86 connected on the sixth movable seat 83 through a twelfth driver 85 for spinning the other end of the third forward and backward rivet body 104 of the chair base assembly 100 on the fifth station 25.

[0015] Preferably, the frame 1 is further provided with a plurality of cylinder pressing mechanisms 9 capable of pressing the chair base assembly 100 on the second station 22, the third station 23, the fourth station 24 and the fifth station 25 from top to bottom.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、The structure is simple and easy to realize, the first transfer mechanism is arranged to facilitate the synchronization of the chair base assembly on the first to fifth stations to the corresponding second to sixth stations, thereby realizing the function of pipeline sequential transfer of the chair base assembly, and the utility is good, so that other mechanisms can sequentially process the passing chair base assembly; the second return cylinder rotating mechanism is arranged to facilitate the rotation of the return cylinder of the chair base assembly on the second station from top to bottom, which realizes the mechanical pipeline knob function and is beneficial to improve the work efficiency; the third return cylinder clamping mechanism is arranged to facilitate the clamping of the return cylinder of the chair base assembly on the third station from one side to the other side to facilitate the position correction of the first up-down nail body therein, which is rationally designed and does not hinder the first nail body rotating mechanism from rotating the upper end of the first up-down nail body in the clamped return cylinder on the third station, and the utility is good; the second nail body pressing and rotating mechanism is arranged to facilitate the pressing of one end of the second front-back nail body of the chair base assembly and the rotating of the other end, and the third nail body pressing and rotating mechanism is arranged to facilitate the pressing of one end of the third front-back nail body of the chair base assembly on the fifth station and the rotating of the other end, which realizes the function of mechanical pipeline riveting of the nail body on the chair base assembly, is beneficial to improve the work efficiency, and the utility is good.

[0018] 2、The first movable seat is arranged to facilitate left and right movement under the action of the first driver to drive the lifter and the front and rear side supports thereon to move left and right, and the lifter is arranged to facilitate the lifting and lowering of the front and rear side supports, thereby realizing the function of lifting the chair base assembly on the first to fifth stations and then moving to the corresponding second to sixth stations and then lowering, compared with the technical solution of using a clamping jaw mechanism to clamp and move a workpiece, the present application uses the arrangement of front and rear side supports, which is easy to implement and does not easily hinder the processing action of the remaining mechanisms on the chair base assembly after the front and rear side supports are lowered.

[0019] 3、The specific arrangement of the second return cylinder rotating mechanism enables the second driver to drive the second movable seat to approach the second station from above when the return cylinder of the chair base assembly on the second station needs to be rotated, thereby driving the third driver and the rotating tool to approach the return cylinder of the chair base assembly from above, and when in position, the third driver drives the rotating tool to rotate and rotate the return cylinder, which is easy to implement, and after completion, the second driver drives the second movable seat to move away from the second station from above to facilitate the rotating tool to move away from the return cylinder from above, thereby not hindering the first transfer mechanism from transferring the chair base assembly to the next station.

[0020] 4、The third protrusion on the third station is provided to provide support force to the lower end of the first up-and-down nail body, which is practical and facilitates the first nail body riveting mechanism to rivet the upper end of the first up-and-down nail body. The specific arrangement of the first nail body riveting mechanism is that when the upper end of the first up-and-down nail body is to be riveted, the fifth driver drives the fourth movable seat to approach the third station from above so as to drive the sixth driver and the first rotating head on it to approach the upper end of the first up-and-down nail body from above. When in position, the sixth driver drives the first rotating head to rotate and rivet the upper end of the first up-and-down nail body. The implementation is convenient, and after completion, the fifth driver drives the fourth movable seat to move away from the third station from above so as to drive the sixth driver and the first rotating head to move away from the upper end of the first up-and-down nail body from above, thereby not hindering the first transferring mechanism from transferring the chair base assembly to the next station. The implementation is convenient.

[0021] 5、The arrangement of the air cylinder pressing mechanism can first press the chair base assembly on the corresponding station to fix it before processing, which makes the subsequent processing more accurate and stable and is beneficial to improving the yield. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of the present application.

[0023] Figure 2 is one of the chair base assembly views of the present application.

[0024] Figure 3 is the second chair base assembly view of the present application.

[0025] Figure 4 is one of the partial structure views of the present application.

[0026] Figure 5 is the second partial structure view of the present application.

[0027] Figure 6 is the third partial structure view of the present application.

[0028] Figure 7 is the fourth partial structure view of the present application.

[0029] Figure 8 is the fifth partial structure view of the present application.

[0030] Figure 9 is the sixth partial structure view of the present application. DETAILED DESCRIPTION

[0031] The features of the present application and other related features are further described in detail through the following examples, so as to facilitate the understanding of the skilled in the art:

[0032] As Figures 1 to 9 shown, a processing machine for chair base assembly, comprising a frame 1, the frame 1 is provided with first station 21, second station 22, third station 23, fourth station 24, fifth station 25, sixth station 26 in turn left and right distribution for placing chair base assembly 100 on it, the frame 1 is provided with the first transfer mechanism 3 which can move the chair base assembly 100 on the first station 21 to the fifth station 25 to the corresponding second station 22 to the sixth station 26 synchronously, the frame 1 is provided with the second torsion mechanism 4 for torsioning the chair base assembly 100 on the second station 22 from top to bottom, the third torsion clamping mechanism 5 for clamping the chair base assembly 100 on the third station 23 from one side of front and back to facilitate the position correction of the first up-down nail body 102 in it, the first nail body spin riveting mechanism 6 for spin riveting the upper end of the first up-down nail body 102 in the third torsion clamping mechanism 5 on the third station 23, the second nail body pressing and spin riveting mechanism 7 for pressing one end of the second front-back nail body 103 on the fourth station 24 and spin riveting the other end, the third nail body pressing and spin riveting mechanism 8 for pressing one end of the third front-back nail body 104 on the fifth station 25 and spin riveting the other end.

[0033] As described above, the structure is simple and easy to implement. The first transfer mechanism 3 is provided to enable the chair base assembly 100 on the first to fifth workstations 21-25 to be moved synchronously to the corresponding second to sixth workstations 22-26, thereby realizing the function of a pipeline for sequentially transferring the chair base assembly 100, which is good in practicability to facilitate other mechanisms to process the passing chair base assembly 100 sequentially. The second return cylinder rotating mechanism 4 is provided to rotate the return cylinder 101 of the chair base assembly 100 on the second workstation 22 from top to bottom, which realizes the function of a mechanized pipeline knob and is beneficial to improve work efficiency. The third return cylinder clamping mechanism 5 is provided to clamp the return cylinder 101 of the chair base assembly 100 on the third workstation 23 from one side of the front and back to facilitate the position correction of the first up-and-down nail body 102 therein, which is rationally designed and does not hinder the first nail body rotating mechanism 6 to rotate the upper end of the first up-and-down nail body 102 in the clamped return cylinder 101 on the third workstation 23, which is good in practicability. The second nail body pressing and rotating mechanism 7 is provided to press one end of the second front-and-back nail body 103 of the chair base assembly 100 and rotate the other end. The third nail body pressing and rotating mechanism 8 is provided to press one end of the third front-and-back nail body 104 of the chair base assembly 100 on the fifth workstation 25 and rotate the other end, which realizes the function of a mechanized pipeline riveting of the nail bodies on the chair base assembly 100, is beneficial to improve work efficiency, and is good in practicability.

[0034] As Figure 4 , in specific implementation, the first to fifth workstations 21-25 are positioning seat bodies, the sixth workstation 26 is a positioning seat body or a position on a workpiece transmission line, the first transfer mechanism 3 includes a first movable seat 31 arranged on the rack 1 and capable of moving left and right, a first driver 32 for driving the first movable seat 31 to move left and right, a front-and-back supporting member 34 driven and connected to the first movable seat 31 by a lifter 33 for lifting and lowering the chair base assembly 100 on the workstations from the front and back sides, and the supporting member 34 extends left and right.

[0035] As described above, the first movable seat 31 is arranged to facilitate left and right movement under the action of the first driver 32 to drive the lift 33 and the front and rear side supports 34 to move left and right, the lift 33 is arranged to facilitate the lifting and lowering of the front and rear side supports 34, thereby achieving the function of lifting the chair base assembly 100 on the first station 21 to the fifth station 25, and then moving to the corresponding second station 22 to the sixth station 26 and then lowering, compared with the technical solution of using a clamping jaw mechanism to clamp and move the workpiece, the present application uses the arrangement of the front and rear side supports 34, which is easy to implement, and the front and rear side supports 34 do not easily hinder the processing action of the remaining mechanisms on the chair base assembly 100 after being lowered.

[0036] As Figure 5 shown, in specific implementation, the upper end surface of the first station 21, the second station 22, the third station 23, the fourth station 24, and the fifth station 25 is respectively provided with a plurality of positioning columns 20, the upper end of the positioning column 20 is provided with an upper end head with an outer contour gradually thickening from top to bottom, facilitating the positioning hole on the chair base assembly 100 to be easily clamped outside the positioning column 20 for positioning when the first transfer mechanism 3 lowers the chair base assembly 100.

[0037] As Figure 6 shown, in specific implementation, the upper end of the support 34 near the edge of the station side is concave and arranged with a plurality of limiting notches 341 for supporting the chair base assembly 100, which is beneficial to prevent the chair base assembly 100 from shifting when the first transfer mechanism 3 lifts, moves, and lowers the chair base assembly 100, and has good practicality.

[0038] As Figure 7 shown, in specific implementation, the second return cylinder twist mechanism 4 includes a second movable seat 41 capable of approaching and moving away from the second station 22 from above, a second driver 42 for driving the second movable seat 41 to approach and move away from the second station 22 from above, and a twist device 44 for twisting the return cylinder 101 of the chair base assembly 100 on the second station 22, driven and connected by a third driver 43 on the second movable seat 41.

[0039] As mentioned above, the specific arrangement of the second force cylinder rotating and twisting mechanism 4 makes it possible for the second driver 42 to drive the second movable seat 41 to approach the second work station 22 from above when it is necessary to rotate and twist the force cylinder 101 of the chair base assembly 100 at the second work station 22, thus bringing the third driver 43 and the rotating and twisting tool 44 to approach the force cylinder 101 of the chair base assembly 100 from above, and when in position, the third driver 43 drives the rotating and twisting tool 44 to rotate and twist the force cylinder 101, which is convenient to implement, and after completion, the second driver 42 drives the second movable seat 41 to move away from above the second work station 22 so as to facilitate the rotating and twisting tool 44 to move away from above the force cylinder 101, thus not hindering the first transferring mechanism 3 to transfer the chair base assembly 100 to the next work station, which is convenient to implement.

[0040] As shown in Figure 8 the specific implementation, the third force cylinder clamping mechanism 5 includes a third movable seat 51 capable of moving forward and backward to approach and move away from the third work station 23, a fourth driver 52 for driving the third movable seat 51 to move forward and backward, and the third movable seat 51 is provided with a jaw assembly 53 for clamping and unclamping the force cylinder 101 of the chair base assembly 100 at the third work station 23, which is convenient to implement.

[0041] As shown in Figure 8 the specific implementation, the third work station 23 is provided with a third protrusion 231 for the lower end of the first up-down nail body 102 of the chair base assembly 100 to abut against, and the first nail body rotating and riveting mechanism 6 includes a fourth movable seat 61 capable of approaching and moving away from above the third work station 23, a fifth driver 62 for driving the fourth movable seat 61 to approach and move away from above the third work station 23, and the fourth movable seat 61 is driven and connected with a first rotating head 64 for rotating and riveting the upper end of the first up-down nail body 102 of the chair base assembly 100 at the third work station 23 through a sixth driver 63.

[0042] As described above, the third protrusion 231 on the third station 23 is arranged to provide support force to the lower end of the first up-down nail body 102, which is practical and facilitates the first nail body riveting mechanism 6 to rivet the upper end of the first up-down nail body 102. The first nail body riveting mechanism 6 is arranged such that when riveting the upper end of the first up-down nail body 102, the fifth driver 62 drives the fourth movable seat 61 to approach the third station 23 from above so as to drive the sixth driver 63 and the first rotating head 64 on it to approach the upper end of the first up-down nail body 102 from above. When in position, the sixth driver 63 drives the first rotating head 64 to rotate and rivet the upper end of the first up-down nail body 102. The implementation is convenient, and after completion, the fifth driver 62 drives the fourth movable seat 61 to move away from the third station 23 from above so as to drive the sixth driver 63 and the first rotating head 64 on it to move away from the upper end of the first up-down nail body 102 from above, thereby not hindering the first transferring mechanism 3 from transferring the chair base assembly 100 to the next station. The implementation is convenient.

[0043] As Figure 9 shown, in specific implementation, the second nail body pressing and riveting mechanism 7 includes a second pressing head 71 located on one side of the fourth station 24 and capable of moving forward and backward so as to press the one end of the second front-back nail body 103 of the chair base assembly 100 on the fourth station 24, a seventh driver 72 for driving the second pressing head 71 to move forward and backward, a fifth movable seat 73 located on the other side of the fourth station 24 and capable of moving forward and backward so as to approach and move away from the fourth station 24, an eighth driver 74 for driving the fifth movable seat 73 to move forward and backward, and a second rotating head 76 for riveting the other end of the second front-back nail body 103 of the chair base assembly 100 on the fourth station 24, which is driven and connected on the fifth movable seat 73 by a ninth driver 75. The implementation is convenient and facilitates the mechanized assembly line riveting of the chair base assembly 100.

[0044] As Figure 9As shown, in particular implementation, the third rivet body pressing and spinning mechanism 8 includes a third pressing head 81 on one side of the fifth station 25 capable of moving forward and backward to press the one end of the third front-to-back rivet body 104 of the chair base assembly 100, a tenth driver 82 for driving the third pressing head 81 to move forward and backward, a sixth movable seat 83 on the other side of the fifth station 25 capable of moving forward and backward to approach and away from the fifth station 25, an eleventh driver 84 for driving the sixth movable seat 83 to move forward and backward, and a twelfth driver 85 drivingly connected with a third spinning head 86 on the sixth movable seat 83 for spinning the other end of the third front-to-back rivet body 104 of the chair base assembly 100 on the fifth station 25, which is convenient to implement and facilitates the mechanized assembly line riveting of the chair base assembly 100.

[0045] As shown, Figure 1 As shown, in particular implementation, the rack 1 is further provided with a plurality of cylinder pressing mechanisms 9 capable of pressing the chair base assembly 100 on the second station 22, the third station 23, the fourth station 24 and the fifth station 25 from top to bottom.

[0046] As described above, the provision of the cylinder pressing mechanisms 9 in the present case can press and fix the chair base assembly 100 on the corresponding station before processing, which makes the subsequent processing more accurate and stable and is beneficial to improve the yield.

[0047] As described above, in particular implementation, each driver in the present case can be implemented by a motor mechanism or a telescopic cylinder mechanism to drive the connected components to move.

[0048] As described above, the present case protects a processing machine for chair base assembly, and all technical solutions identical or similar to the present case shall be deemed to fall within the protection scope of the present case.

Claims

1. A machining machine for a chair base assembly, characterized by The application relates to a chair bottom base assembly production line, which comprises an organic frame (1), wherein the frame (1) is provided with a first work station (21), a second work station (22), a third work station (23), a fourth work station (24), a fifth work station (25) and a sixth work station (26) in sequence from left to right for placing chair bottom base assemblies (100) thereon, the frame (1) is provided with a first transfer mechanism (3) capable of synchronously moving the chair bottom base assemblies (100) on the first work station (21) to the second work station (22), the third work station (23), the fourth work station (24), the fifth work station (25) and the sixth work station (26), the frame (1) is provided with a second return cylinder twisting mechanism (4) for twisting the return cylinder (101) of the chair bottom base assembly (100) on the second work station (22) from top to bottom, a third return cylinder clamping mechanism (5) for clamping the return cylinder (101) of the chair bottom base assembly (100) on the third work station (23) from one side of the front and back to facilitate position correction of the first up-and-down nail body (102) therein, a first nail body spin riveting mechanism (6) for spin riveting the upper end of the first up-and-down nail body (102) in the return cylinder (101) clamped on the third work station (23), a second nail body pressing and spin riveting mechanism (7) for pressing one end of the second front-and-back nail body (103) of the chair bottom base assembly (100) on the fourth work station (24) and spin riveting the other end, and a third nail body pressing and spin riveting mechanism (8) for pressing one end of the third front-and-back nail body (104) of the chair bottom base assembly (100) on the fifth work station (25) and spin riveting the other end; The first work station (21), the second work station (22), the third work station (23), the fourth work station (24) and the fifth work station (25) are positioning seat bodies, and the sixth work station (26) is a position on a workpiece transmission line or a positioning seat body, the first transfer mechanism (3) comprises a first movable seat (31) capable of moving leftward and rightward on the frame (1) and a first driver (32) for driving the first movable seat (31) to move leftward and rightward, and a front-and-back supporting piece (34) for lifting and lowering the chair bottom base assembly (100) on the work station from the front and back side is driven and connected to the first movable seat (31) through a lifter (33), and the supporting piece (34) extends leftward and rightward; Upper end faces of the first work station (21), the second work station (22), the third work station (23), the fourth work station (24) and the fifth work station (25) are respectively provided with a plurality of positioning columns (20), and upper end heads of the positioning columns (20) are provided with upper end heads with gradually thickened outer contours from top to bottom; The edge of the upper end of the supporting piece (34) close to the work station side is concavely provided with a plurality of left-and-right arranged limiting notches (341) for supporting the chair bottom base assembly (100); The rack (1) is further provided with a plurality of cylinder pressing mechanisms (9) capable of pressing the chair base assembly (100) on the second station (22), the third station (23), the fourth station (24) and the fifth station (25) from top to bottom.

2. A machining machine for a chair base assembly according to claim 1, characterized in that The second force cylinder rotating mechanism (4) comprises a second movable seat (41) capable of approaching and moving away from the second station (22) from top, a second driver (42) for driving the second movable seat (41) to approach and move away from the second station (22) from top, and a rotating tool (44) for rotating the force cylinder (101) of the chair base assembly (100) on the second station (22) driven and connected by a third driver (43) on the second movable seat (41).

3. A machining machine for a chair base assembly according to claim 1, characterized in that The third force cylinder clamping mechanism (5) comprises a third movable seat (51) capable of moving forward and backward to approach and move away from the third station (23), and a fourth driver (52) for driving the third movable seat (51) to move forward and backward, and a clamping jaw assembly (53) for clamping and releasing the force cylinder (101) of the chair base assembly (100) on the third station (23) is arranged on the third movable seat (51).

4. A machining machine for a chair base assembly according to claim 1, characterized in that The third station (23) is provided with a third protrusion (231) for the lower end of the first up-down nail body (102) of the chair base assembly (100) to abut against, and the first nail body rotating mechanism (6) comprises a fourth movable seat (61) capable of approaching and moving away from the third station (23) from top, a fifth driver (62) for driving the fourth movable seat (61) to approach and move away from the third station (23) from top, and a first rotating head (64) for rotating and riveting the upper end of the first up-down nail body (102) of the chair base assembly (100) on the third station (23) driven and connected by a sixth driver (63) on the fourth movable seat (61).

5. A machining machine for a chair base assembly according to claim 1, characterized in that The second nail body pressing and rotating mechanism (7) comprises a second pressing head (71) capable of pressing one end of the second front-back nail body (103) of the chair base assembly (100) on the fourth station (24) by moving forward and backward, a seventh driver (72) for driving the second pressing head (71) to move forward and backward, a fifth movable seat (73) capable of approaching and moving away from the fourth station (24) by moving forward and backward on the other side of the fourth station (24), and an eighth driver (74) for driving the fifth movable seat (73) to move forward and backward, and a second rotating head (76) for rotating and riveting the other end of the second front-back nail body (103) of the chair base assembly (100) on the fourth station (24) driven and connected by a ninth driver (75) on the fifth movable seat (73).

6. A machining machine for a chair base assembly according to claim 1, characterized in that The third nail body top pressing and spin riveting mechanism (8) comprises a third top pressing head (81) capable of moving forward and backward on one side of the fifth station (25) to press the one end of the third front and back nail body (104) of the chair base assembly (100), a tenth driver (82) for driving the third top pressing head (81) to move forward and backward, a sixth movable seat (83) capable of moving forward and backward on the other side of the fifth station (25) to approach and move away from the fifth station (25), and an eleventh driver (84) for driving the sixth movable seat (83) to move forward and backward. The sixth movable seat (83) is driven and connected with a third spin head (86) for spin riveting the other end of the third front and back nail body (104) of the chair base assembly (100) on the fifth station (25) through a twelfth driver (85).

Images