Centering, drilling and pin pressing device for automobile mandrel assembly

Abstract

The utility model relates to a centering, drilling and pin pressing device for an automobile mandrel assembly, and belongs to the technical field of assembly of automobile mandrel assemblies. The centering, drilling and pin pressing device for the automobile mandrel assembly comprises a feeding assembly, a rack, a transverse moving sliding seat and a centering assembly. A transverse moving sliding seat is arranged on the machine frame in a sliding mode through a transverse lead screw mechanism and a guide rail. A centering assembly and a feeding assembly are arranged on the machine frame on the inner side of the transverse moving sliding base. A longitudinal sliding seat A is arranged on the transverse moving sliding seat through a longitudinal screw rod and a servo motor A, and a longitudinal sliding seat B is arranged on the transverse moving sliding seat through a longitudinal screw rod and a servo motor B; and the longitudinal sliding seat A is provided with a pressing pin assembly. The centering, drilling and pin-pressing device for the automobile mandrel assembly is compact in structure and ingenious in design, solves the problem that an existing centering, drilling and pin-pressing mode for the automobile mandrel assembly is low in working efficiency, and is particularly suitable for the requirement for assembly and use of the automobile mandrel assembly.

Description

Technical Field

[0001] The utility model relates to a centering, drilling and pinning device for an automobile core shaft assembly, belonging to the technical field of automobile core shaft assembly assembly. Background Art

[0002] During assembly of an automotive mandrel assembly, it is necessary to center it, drill a hole, and press-fit a pin into the created hole. Conventionally, centering, drilling, and press-fitting the mandrel assembly are performed manually in separate steps, resulting in low efficiency. Therefore, it is necessary to develop an assembly device that can mechanizedly perform centering, drilling, and press-fitting of the mandrel assembly to address these issues. Summary of the Invention

[0003] The purpose of the utility model is to provide an automobile mandrel assembly centering drilling and pinning device with a compact structure and ingenious design to solve the problem of low work efficiency in the existing automobile mandrel assembly centering drilling and pinning work.

[0004] The technical solution of the utility model is:

[0005] A centering, drilling and pinning device for an automobile spindle assembly comprises a loading assembly, a frame, a transverse slide, a centering assembly and a frame; the device is characterized in that: a transverse slide is mounted on the frame via a transverse screw mechanism and a guide rail for sliding; a centering assembly and a loading assembly are mounted on the frame inside the transverse slide; a longitudinal slide A is mounted on the transverse slide via a longitudinal screw and a servo motor A, and a longitudinal slide B is mounted via a longitudinal screw and a servo motor B; a pinning assembly is mounted on the longitudinal slide A; and a hole-opening drill bit is mounted on the longitudinal slide B via a drilling motor.

[0006] The pressing pin assembly includes an assembly cylinder, a guide sleeve, a straightening movable shaft, a pressure sensor, a pressing pin punch and a connecting tube; the longitudinal slide A is equipped with an assembly cylinder; a guide sleeve is fixedly installed at one end of the assembly cylinder; the straightening movable shaft is installed in the assembly cylinder through a return spring; a pressure sensor is installed in the assembly cylinder at one end of the straightening movable shaft; the pressure sensor is in contact with the straightening movable shaft; a pressing pin punch is fixedly installed at one end of the straightening movable shaft; one end of the pressing pin punch extends to the guide sleeve; a connecting tube is installed in the guide sleeve outside the pressing pin punch through a buffer spring; the connecting tube is slidably connected to the pressing pin punch.

[0007] The pressing pin punch is provided with a limiting ring edge; the circumferential surface of the connecting pipe is provided with a supporting ring edge; the buffer spring is sleeved on the pressing pin punch; the two ends of the buffer spring are respectively connected with the limiting ring edge and the supporting ring edge.

[0008] The feeding assembly includes a vibrating feeding tray, a reversing block and a guide pipe sleeve; two groups of vibrating feeding trays are installed on the frame; a reversing block is installed on the frame on one side of the vibrating feeding tray; a guide pipe sleeve is installed on the frame below one side of the reversing block; a compressed air interface is provided in the middle of the reversing block; material receiving pipes are provided on both sides of the compressed air interface; the material receiving pipes are connected to the corresponding vibrating feeding tray; guide sliders are symmetrically installed on the reversing block below the material receiving pipe through a reversing cylinder; a material hole is provided on the guide slider; a discharge pipe is provided on the reversing block below the compressed air interface; the discharge pipe is connected to the guide pipe sleeve through a guide hose.

[0009] The centering component includes a clamping cylinder, a positioning seat, a rotating head and a lifting slide; the lifting slide is installed on the frame through a vertical screw rod and a guide rail; the lifting slide is installed with a rotating head through a drive motor and a torque sensor; the frame below the rotating head is equipped with a positioning seat; and a clamping cylinder is installed on one side of the positioning seat.

[0010] A drilling guide hole is provided on one side of the positioning seat.

[0011] The advantages of the present invention are:

[0012] The automobile core shaft assembly centering, drilling and pinning device has a compact structure and ingenious design. It can mechanizedly complete the centering, drilling and pinning work of the automobile core shaft assembly, thereby solving the problem of low work efficiency of the existing automobile core shaft assembly centering, drilling and pinning method, and is particularly suitable for the needs of automobile core shaft assembly assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the axonometric structure of the present utility model;

[0015] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0016] Figure 4 This is a structural diagram of part of the feeding assembly of the utility model;

[0017] Figure 5 This is a structural diagram of part of the feeding assembly of the utility model;

[0018] Figure 6 This is a schematic diagram of the cross-sectional structure of the material guide block of the utility model;

[0019] Figure 7 This is a structural diagram of the transverse slide and transverse screw mechanism of the utility model;

[0020] Figure 8This is a structural diagram of the transverse sliding seat of the utility model;

[0021] Figure 9 for Figure 8 Another angle diagram of

[0022] Figure 10 for Figure 9 Schematic diagram of the top view structure;

[0023] Figure 11 for Figure 10 Schematic diagram of the structure in the AA direction;

[0024] Figure 12 for Figure 11 Schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 13 for Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0026] Figure 1: Frame; 2: Horizontal screw mechanism; 3: Transverse slide; 4: Centering assembly; 5: Loading assembly; 6: Longitudinal screw; 7: Servo motor A; 8: Longitudinal slide A; 9: Servo motor B; 10: Longitudinal slide B; 11: Pressing pin assembly; 12: Drilling motor; 13: Drill bit; 14: Assembly cylinder; 15: Guide sleeve; 16: Return spring; 17: Centering shaft; 18: Pressure sensor; 19: Pressing pin punch; 20: Buffer spring Spring; 21. Connecting pipe; 22. Limiting ring edge; 23. Supporting ring edge; 24. Vibrating loading plate; 25. Reversing block; 26. Guide pipe sleeve; 27. Compressed air interface; 28. Material receiving pipe; 29. ​​Reversing cylinder; 30. Guide slide; 31. Material hole; 32. Feeding pipe; 33. Vertical screw rod; 34. Lifting slide; 35. Drive motor; 36. Torque sensor; 37. Rotating head; 38. Positioning seat; 39. Clamping cylinder; 40. Drilling guide hole. DETAILED DESCRIPTION

[0027] The automobile spindle assembly centering drilling and pinning device comprises a feeding assembly 5, a frame 1, a transverse slide 3, a centering assembly 4 and a frame 1 (see the attached manual). Figure 1 and 2 ).

[0028] The frame 1 is provided with a transverse slide 3 (see the appendix of the manual) through a transverse screw mechanism 2 and a guide rail. Figure 1 、 2 and 7). The transverse screw mechanism 2 can drive the transverse slide 3 to slide back and forth on the guide rail.

[0029] The longitudinal slide A8 is mounted on the transverse slide 3 through the longitudinal screw rod 6 and the servo motor A7, and the longitudinal slide B10 is mounted on the longitudinal screw rod 6 and the servo motor B9 (see the appendix of the manual). Figure 8 and 9 When the servo motor A7 and the servo motor B9 are working, they can drive the longitudinal slide A8 and the longitudinal slide B10 to slide back and forth respectively.

[0030] The longitudinal slide A8 is equipped with a press pin assembly 11 (see the appendix of the instruction manual). Figure 7 、 8 , 9 and 10). The pressing pin assembly 11 includes an assembly cylinder 14, a guide sleeve 15, a straightening movable shaft 17, a pressure sensor 18, a pressing pin punch 19 and a connecting pipe 21 (see the appendix of the specification). Figure 10 and 11 ).

[0031] The longitudinal slide A8 is provided with an assembly cylinder 14; a guide sleeve 15 is fixedly mounted on one end of the assembly cylinder 14; a centering movable shaft 17 is mounted in the assembly cylinder 14 via a return spring 16; a pressure sensor 18 is mounted in the assembly cylinder 14 at one end of the centering movable shaft 17; the pressure sensor 18 is in contact with the centering movable shaft 17. A pressing pin punch 19 is fixedly mounted on one end of the centering movable shaft 17 (see the appendix of the instruction manual). Figure 11 and 12 ).

[0032] When the longitudinal slide A8 moves, it can drive the assembly cylinder 14 and the guide sleeve 15 to move together. The purpose of installing the pressing pin punch 19 at one end of the straightening movable shaft 17 is: first, the force applied to the pressing pin punch 19 during the pressing operation can be monitored by the pressure sensor 18; second, the straightening movable shaft 17 can always keep the pressing pin punch 19 in the correct posture to prevent it from deviating from the running track.

[0033] One end of the pressing pin punch 19 extends to the guide sleeve 15 ; a connecting tube 21 is installed in the guide sleeve 15 outside the pressing pin punch 19 through a buffer spring 20 ; the connecting tube 21 is slidably connected to the pressing pin punch 19 .

[0034] The pressing pin punch rod 19 is provided with a limit ring edge 22; the circumferential surface of the connecting tube 21 is provided with a support ring edge 23; the buffer spring 20 is sleeved on the pressing pin punch rod 19; the two ends of the buffer spring 20 are respectively connected with the limit ring edge 22 and the support ring edge 23 (see the appendix of the manual). Figure 11 and 12 ).

[0035] The purpose of setting the pressing pin punch 19 and the connecting tube 21 in this way is to make the connecting tube 21 always have a tendency to move outward under the action of the elastic force of the buffer spring 20, and under the action of the supporting ring edge 23, the problem of separation of the connecting tube 21 and the guide sleeve 15 can be avoided.

[0036] The longitudinal slide B10 is provided with a drilling motor 12 and a drilling bit 13 (see the appendix of the manual) Figure 7 、8 , 9 and 10). During operation, the drilling drill 13 can perform a drilling operation on the workpiece (automobile mandrel assembly).

[0037] The frame 1 inside the transverse slide 3 is equipped with a centering assembly 4 and a loading assembly 5 (see the appendix of the manual). Figure 1 、 2 and 3). The feeding assembly 5 includes a vibrating feeding plate 24, a reversing block 25 and a guide sleeve 26 (see the appendix of the specification). Figure 4 and 5 ).

[0038] Two sets of vibrating feeding trays 24 are installed on the frame 1; a reversing block 25 is installed on the frame 1 on one side of the vibrating feeding tray 24; a guide pipe sleeve 26 is installed on the frame 1 below the reversing block 25; a compressed air interface 27 is provided in the middle of the reversing block 25 (see the appendix of the manual). Figure 6 The compressed gas interface 27 is connected to the external compressed gas supply mechanism.

[0039] Material receiving pipes 28 are provided on both sides of the compressed air interface 27; the material receiving pipes 28 are connected to the corresponding vibrating loading tray 24; when working, the vibrating loading tray 24 can transport the workpiece to the material receiving pipe 28 through the pipeline, and under its guidance, it enters the interior of the reversing block 25.

[0040] A guide slider 30 is symmetrically installed on the reversing block 25 below the material receiving pipe 28 through the reversing cylinder 29; a material hole 31 is provided on the guide slider 30; a discharge pipe 32 is provided on the reversing block 25 below the compressed air interface 27; the discharge pipe 32 is connected to the guide pipe sleeve 26 through a guide hose (not shown in the drawings of the specification).

[0041] The centering assembly 4 includes a pressing cylinder 39, a positioning seat 38, a rotating head 37 and a lifting slide 34; the lifting slide 34 is installed on the frame 1 through a vertical screw rod 33 and a guide rail; the lifting slide 34 is equipped with a rotating head 37 through a drive motor 35 and a torque sensor 36; the frame 1 below the rotating head 37 is equipped with a positioning seat 38; a drilling guide hole 40 is provided on one side of the positioning seat 38 (see the appendix of the manual) Figure 13 ).

[0042] A pressing cylinder 39 is mounted on one side of the positioning seat 38 (see the appendix of the specification). Figure 2 and 13 During operation, when the workpiece (automobile mandrel assembly) is inserted into the positioning seat 38 , the pressing cylinder 39 is actuated to press and fix the workpiece (automobile mandrel assembly) on the positioning seat 38 .

[0043] The automobile mandrel assembly centering, drilling and pinning device first inserts the workpiece to be processed (automobile mandrel assembly) into the positioning seat 38 during operation, and then presses and fixes the workpiece (automobile mandrel assembly) through the pressing cylinder 39.

[0044] After the workpiece (automotive spindle assembly) is clamped and secured, the vertical screw 33 and the lifting slide 34 in the centering assembly 4 cooperate to connect the rotating head 37 with the input end of the workpiece (automotive spindle assembly). The drive motor 35 then drives the input end of the workpiece (automotive spindle assembly) to the left, via the torque sensor 36 and rotating head 37, to a predetermined position. When the torque sensor 36 reaches a certain value, indicating that the input end of the workpiece (automotive spindle assembly) has reached its limit of left rotation, the drive motor 35 then drives the input end of the workpiece (automotive spindle assembly) to the right, via the torque sensor 36 and rotating head 37, to rotate it to its limit of right rotation.

[0045] After the above work is completed, the drive motor 35 drives the workpiece (automobile mandrel assembly) to rotate to the middle position according to the angle of rotation of the right and left extreme positions. In this way, the centering process of the workpiece (automobile mandrel assembly) is completed.

[0046] After the centering process is completed in this automotive mandrel assembly centering, drilling, and pinning device, the transverse screw mechanism 2 drives the transverse slide 3, aligning the drill bit 13 with the drill guide hole 40 on the positioning seat 38. The drilling motor 12 then rotates the drill bit 13. During this rotation, the servo motor B9, in conjunction with the longitudinal screw 6, drives the longitudinal slide B10 and the drill bit 13 toward the drill guide hole 40. The drill bit is finally inserted into the drill guide hole 40, completing the drilling process of the workpiece (automotive mandrel assembly) before returning to its original position.

[0047] During the drilling process of the drilling bit 13, the vibrating loading plate 24 of the loading assembly 5 is in motion, and the pins to be assembled are fed into the material hole 31 of the guide slide 30 through the material receiving pipe 28. Then the reversing cylinder 29 pushes the guide slide 30 so that the material hole 31 corresponds to the compressed air interface 27 and the discharge pipe 32 (see the appendix of the manual). Figure 6 ). The external compressed air supply mechanism then blows compressed air into the compressed air port 27, allowing the pin in the material hole 31 to enter the guide sleeve 26 along the guide hose. At this point, the connecting tube 21 of the pressure pin assembly 11 is inserted into one end of the guide sleeve 26. As the pin enters the guide sleeve 26 under the action of the compressed air, the guide sleeve 26 forces the pin to move into the connecting tube 21.

[0048] When the drilling bit 13 completes the drilling process of the workpiece (automobile mandrel assembly), the pressing pin assembly 11 cooperates with the longitudinal slide A8 and the transverse slide 3 to make the connecting tube 21 equipped with the pin correspond to the drilling guide hole 40 on the positioning seat 38.

[0049] After the above process is complete, the transverse slide 3 drives the pressing pin assembly 11 toward the opening in the workpiece (automotive mandrel assembly). When the connecting tube 21 contacts the workpiece surface, it overcomes the elastic force of the buffer spring 20 and remains stationary relative to the workpiece. At this point, the pressing pin plunger 19 continues to move toward the workpiece. As the pressing pin plunger 19 moves toward the workpiece, it pushes the pin in the connecting tube 21 into the opening in the workpiece. The centering, drilling, and pressing pinning device for the automotive mandrel assembly now completes its pressing operation, and the pressing pin assembly 11 is then reset.

[0050] At this point, the centering, drilling and pinning device for the automobile core shaft assembly has completed all the work of centering, drilling and pinning, and the device can enter the next working cycle.

[0051] The automobile core shaft assembly centering, drilling and pinning device has a compact structure and ingenious design. It can mechanizedly complete the centering, drilling and pinning work of the automobile core shaft assembly, thereby solving the problem of low work efficiency of the existing automobile core shaft assembly centering, drilling and pinning method, and is particularly suitable for the needs of automobile core shaft assembly assembly.

Claims

1. A centering, drilling, and pinning device for an automobile spindle assembly, comprising a loading assembly (5), a frame (1), a transverse slide (3), a centering assembly (4), and a frame (1); characterized in that: The frame (1) is provided with a transverse slide (3) through a transverse screw mechanism (2) and a guide rail; a centering assembly (4) and a loading assembly (5) are provided on the frame (1) inside the transverse slide (3); a longitudinal slide A (8) is provided on the transverse slide (3) through a longitudinal screw (6) and a servo motor A (7), and a longitudinal slide B (10) is provided through a longitudinal screw (6) and a servo motor B (9); a pressing pin assembly (11) is provided on the longitudinal slide A (8); and a hole-opening drill bit (13) is provided on the longitudinal slide B (10) through a drilling motor (12).

2. The centering, drilling, and pinning device for an automobile mandrel assembly according to claim 1, characterized in that: The pressing pin assembly (11) includes an assembly cylinder (14), a guide sleeve (15), a straightening movable shaft (17), a pressure sensor (18), a pressing pin punch (19) and a connecting tube (21); the longitudinal slide A (8) is equipped with an assembly cylinder (14); a guide sleeve (15) is fixedly installed at one end of the assembly cylinder (14); a straightening movable shaft (17) is installed in the assembly cylinder (14) through a return spring (16); a pressure sensor (18) is installed in the assembly cylinder (14) at one end of the straightening movable shaft (17); the pressure sensor (18) is in contact with the straightening movable shaft (17); a pressing pin punch (19) is fixedly installed at one end of the straightening movable shaft (17); one end of the pressing pin punch (19) is extended to the guide sleeve (15); a connecting tube (21) is installed in the guide sleeve (15) outside the pressing pin punch (19) through a buffer spring (20); the connecting tube (21) is slidably connected to the pressing pin punch (19).

3. The centering, drilling and pinning device for an automobile mandrel assembly according to claim 2, characterized in that: The pressing pin punch (19) is provided with a limiting ring edge (22); the circumferential surface of the connecting tube (21) is provided with a supporting ring edge (23); the buffer spring (20) is sleeved on the pressing pin punch (19); and the two ends of the buffer spring (20) are respectively in contact with the limiting ring edge (22) and the supporting ring edge (23).

4. The centering, drilling and pinning device for an automobile mandrel assembly according to claim 1, characterized in that: The feeding assembly (5) includes a vibrating feeding tray (24), a reversing block (25) and a guide sleeve (26); two sets of vibrating feeding trays (24) are installed on the frame (1); a reversing block (25) is installed on the frame (1) on one side of the vibrating feeding tray (24); a guide sleeve (26) is installed on the frame (1) below one side of the reversing block (25); a compressed air interface (27) is provided in the middle of the reversing block (25); the compressed air interface (27) is provided on both sides. A material receiving pipe (28) is provided on the side; the material receiving pipe (28) is connected to the corresponding vibrating loading plate (24); a guide slide block (30) is symmetrically installed on the reversing block (25) below the material receiving pipe (28) through a reversing cylinder (29); a material hole (31) is provided on the guide slide block (30); a material discharge pipe (32) is provided on the reversing block (25) below the compressed air interface (27); the material discharge pipe (32) is connected to the guide pipe sleeve (26) through a guide hose.

5. The centering, drilling and pinning device for an automobile mandrel assembly according to claim 1, characterized in that: The centering assembly (4) includes a clamping cylinder (39), a positioning seat (38), a rotating head (37) and a lifting slide (34); the lifting slide (34) is installed on the frame (1) through a vertical screw rod (33) and a guide rail; the lifting slide (34) is installed with a rotating head (37) through a driving motor (35) and a torque sensor (36); the frame (1) below the rotating head (37) is equipped with a positioning seat (38); and a clamping cylinder (39) is installed on one side of the positioning seat (38).

6. The centering, drilling and pinning device for an automobile mandrel assembly according to claim 5, characterized in that: A drilling guide hole (40) is provided on one side of the positioning seat (38).

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