Double-end press-fitting device for automobile mandrel assembly

Abstract

The utility model relates to a double-end press fitting device of an automobile mandrel assembly, and belongs to the technical field of automobile mandrel assembly assembling equipment. The double-end press-fitting device of the automobile mandrel assembly comprises a rack, a downward pressing cylinder A, a downward pressing cylinder B, a sliding seat A, a sliding seat B, a pneumatic collet chuck, a pressing head, a positioning seat and a supporting positioner. A sliding seat A and a sliding seat B are arranged on the rack in a sliding manner at an interval through a sliding rail; a pressing cylinder A and a pressing cylinder B are fixedly arranged on the rack above the sliding seat A and the sliding seat B respectively; the pressing cylinder A is connected with the sliding seat A; the pressing cylinder B is connected with the sliding seat B; a pressure head is arranged on the sliding seat A; a positioning seat is arranged on the rack below the pressure head; and a pneumatic collet chuck is arranged on the sliding seat B. The double-end press-fitting device for the automobile mandrel assembly is compact in structure and ingenious in design, solves the problem that the labor intensity is high when an existing automobile mandrel assembly is assembled, 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 double-head press-fit device for an automobile mandrel assembly, belonging to the technical field of automobile mandrel assembly assembly equipment. Background Art

[0002] The automobile mandrel assembly includes a spline torsion bar assembly 1 and a lower steering shaft assembly 2; the spline torsion bar assembly 1 includes a spline shaft 3 and a torsion bar 4; during assembly, the spline shaft 3 needs to be pressed into the torsion bar 4 first, and then the lower steering shaft assembly 2 needs to be pressed into the spline torsion bar assembly 1. In this process, the lower steering shaft assembly 2 needs to be manually pre-installed onto the spline torsion bar assembly 1, and then the spline torsion bar assembly 1 needs to be rotated counterclockwise to the extreme position, and then rotated clockwise to the extreme position; then, according to the angles of the two extreme positions, the spline torsion bar assembly 1 is rotated back to the middle position, and then the assembly of the spline torsion bar assembly 1 and the lower steering shaft assembly 2 is completed. The existing installation method of the automobile mandrel assembly is a mandrel press-fitting mechanism disclosed in the utility model with the authorization announcement number CN219946053U. Although it can complete the press-fitting work of the mandrel (i.e., the spline torsion bar assembly 1) to a certain extent, the assembly of the spline torsion bar assembly 1 and the lower steering shaft assembly 2 still needs to be completed manually, and there is a problem of high assembly strength. Therefore, it is necessary to develop a new press-fitting device to solve the above problems existing in the assembly of the existing automobile mandrel assembly. Summary of the invention

[0003] The utility model aims to provide a double-head press-fitting device for an automobile mandrel assembly which has a compact structure and an ingenious design and solves the problem of high labor intensity during the assembly of the existing automobile mandrel assembly.

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

[0005] A double-head pressing device for an automobile spindle assembly comprises a frame, a pressing cylinder A, a pressing cylinder B, a slide A, a slide B, a pneumatic collet, a pressing head, a positioning seat and a supporting locator; the characteristics are as follows: the slide A and the slide B are slidingly mounted on the frame via a slide rail; the pressing cylinder A and the pressing cylinder B are respectively fixedly mounted on the frame above the slide A and the slide B; the pressing cylinder A is connected to the slide A; the pressing cylinder B is connected to the slide B; the pressing head is mounted on the slide A; the positioning seat is mounted on the frame below the pressing head; the slide B is mounted with a pneumatic collet; and the supporting locator is mounted on the frame below the pneumatic collet.

[0006] The pressure head is in a cylindrical structure; a press-fitting countersunk hole is arranged at the bottom end of the pressure head; and the lower end of the press-fitting countersunk hole is in a conical structure.

[0007] The positioning seat is provided with a positioning countersunk hole; a through hole is provided in the middle of the positioning countersunk hole.

[0008] The support positioner comprises a rotating base, a pneumatic clamp and a positioning shell; the rotating base is mounted on the frame below the pneumatic collet through a motor; the positioning shell is mounted on the rotating base; and the pneumatic clamp is mounted inside the positioning shell.

[0009] The upper end of the positioning shell is provided with a positioning stepped hole.

[0010] The advantages of the utility model are:

[0011] The double-head press-fitting device of the automobile mandrel assembly has a compact structure and ingenious design. It can complete the assembly of the spline torsion bar assembly and the automobile mandrel assembly, thereby solving the problem of high labor intensity in the existing automobile mandrel assembly assembly and is particularly suitable for the needs of automobile mandrel assembly assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the axonometric structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0015] Figure 4 for Figure 3 Schematic diagram of the structure in the middle AA direction;

[0016] Figure 5 for Figure 4 Schematic diagram of the structure after removing the workpiece;

[0017] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at E in the middle;

[0018] Figure 7 for Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0020] Fig. 9 for Figure 5 Schematic diagram of the enlarged structure at D in the middle;

[0021] Fig.10 It is a structural schematic diagram of a spline torsion bar assembly and a lower steering shaft assembly;

[0022] Fig.11 It is a structural schematic diagram of the lower steering shaft assembly.

[0023] In the figure: 1. spline torsion bar assembly; 2. lower steering shaft assembly; 3. spline shaft; 4. torsion bar; 5. frame; 6. slide rail; 7. slide seat A; 8. slide seat B; 9. lower pressure cylinder A; 10. lower pressure cylinder B; 11. pressure head; 12. positioning seat; 13. pneumatic collet; 14. support locator; 15. press-fit countersunk hole; 16. positioning countersunk hole; 17. through hole; 18. motor; 19. rotating base; 20. positioning shell; 21. pneumatic clamp; 22. positioning stepped hole. DETAILED DESCRIPTION

[0024] The double-head pressing device of the automobile mandrel assembly includes a frame 5, a lower pressing cylinder A9, a lower pressing cylinder B10, a slide seat A7, a slide seat B8, a pneumatic collet 13, a pressing head 11, a positioning seat 12 and a supporting positioner 14 (see the attached manual). Figure 1 and 2 ).

[0025] The frame 5 is provided with a slide seat A7 and a slide seat B8 which are slidably mounted at intervals through a slide rail 6; a pressing cylinder A9 and a pressing cylinder B10 are fixedly mounted on the frame 5 above the slide seats A7 and B8, respectively; the pressing cylinder A9 is connected to the slide seat A7; the pressing cylinder B10 is connected to the slide seat B8 (see the attached manual). Figure 1 , 2 and 4).

[0026] When the pressing cylinder A9 is working, it can drive the slide A7 to move up and down; when the pressing cylinder B10 is working, it can drive the slide B8 to move up and down.

[0027] A pressure head 11 is mounted on the slide A7; a positioning seat 12 is mounted on the frame 5 below the pressure head 11 (see the attached manual). Figure 4 and 5 ).

[0028] The pressure head 11 is cylindrical in structure; the bottom end of the pressure head 11 is provided with a press-fitting countersunk hole 15; the lower end of the press-fitting countersunk hole 15 is a conical structure (see the attached manual Figure 8 ).

[0029] The positioning seat 12 is provided with a positioning counterbore 16; a through hole 17 is provided in the middle of the positioning counterbore 16 (see the attached manual). Fig. 9 The purpose of setting the positioning seat 12 is to enable the torsion bar 4 and its accessories to be placed on the positioning seat 12 in a unified posture with the cooperation of the positioning countersunk hole 16 during operation, so as to avoid the problem of misplacement of the torsion bar 4.

[0030] The slide B8 is equipped with a pneumatic collet 13. The pneumatic collet 13 is an external device. The frame 5 below the pneumatic collet 13 is equipped with a support positioner 14 (see the attached manual). Figure 4 ).

[0031] The support positioner 14 includes a rotating base 19, a pneumatic clamp 21 and a positioning housing 20 (see the attached manual). Figure 7 ). A rotating base 19 is mounted on the frame 5 below the pneumatic collet 13 through a motor 18. When the motor 18 is working, the rotating base 19 can be driven to rotate repeatedly.

[0032] A positioning housing 20 is mounted on the rotating base 19; a pneumatic clamp 21 is mounted inside the positioning housing 20 (see the attached manual). Figure 7 The upper end of the positioning housing 20 is provided with a positioning stepped hole 22 (see the attached manual). Figure 7 ).

[0033] The purpose of setting the positioning housing 20 in this way is that when working, the spline torsion bar assembly 1 can be placed on the positioning housing 20 in a uniform posture in an insertion manner under the action of the positioning stepped hole 22, and then the pneumatic clamp 21 can clamp and fix the spline torsion bar assembly 1.

[0034] When the double-head press-fitting device is working, first, the torsion bar 4 and its components need to be placed on the positioning seat 12, and then the spline shaft 3 is inserted into the torsion bar 4; then the pressing cylinder A9 presses the spline shaft 3 through the slide A7 and the pressing head 11 to press it onto the torsion bar 4, thus completing the assembly of the spline torsion bar assembly 1, and then the pressing cylinder A9 drives the slide A7 and the pressing head 11 to reset.

[0035] After the spline torsion bar assembly 1 is assembled, it is placed on the positioning housing 20 supporting the positioner 14 in an insertion manner, and then the pneumatic clamping jaws 21 are actuated to clamp and fix the spline torsion bar assembly 1.

[0036] After the support positioner 14 clamps and fixes the spline torsion bar assembly 1, the lower steering shaft assembly 2 is placed on the pneumatic collet 13, and then the pneumatic collet 13 clamps and fixes the lower steering shaft assembly 2.

[0037] After the above work is completed, the pressing cylinder B10 drives the lower steering shaft assembly 2 to be inserted into the spline torsion bar assembly 1 through the slide B8 and the pneumatic collet 13 to complete the pre-assembly. Then the motor 18 drives the spline torsion bar assembly 1 to rotate counterclockwise to the limit position (i.e. the position where the lower steering shaft assembly 2 hinders its movement and cannot rotate) through the rotating base 19 and the pneumatic clamp 21, and then rotates clockwise to the limit position; then according to the angle of the two limit positions, the motor 18 drives the spline torsion bar assembly 1 to rotate to the middle position, and then the pressing cylinder B10 drives the lower steering shaft assembly 2 through the slide B8 and the pneumatic collet 13 to continue to press down to complete the press-fitting of the automobile mandrel assembly. Then the pneumatic collet 13 releases the lower steering shaft assembly 2 and resets. Then remove the assembled automobile mandrel assembly, so that the double-head press-fitting device has completely completed the assembly of the automobile mandrel assembly, and the double-head press-fitting device can enter the next working cycle.

[0038] The double-head press-fitting device of the automobile mandrel assembly has a compact structure and an ingenious design. It can complete the assembly work of the spline torsion bar 4 assembly 1 and the automobile mandrel assembly, thereby solving the problem of high labor intensity in the existing automobile mandrel assembly assembly and is particularly suitable for the needs of automobile mandrel assembly assembly.

Claims

1. A double-head press-fitting device for an automobile spindle assembly, comprising a frame (5), a pressing cylinder A (9), a pressing cylinder B (10), a slide seat A (7), a slide seat B (8), a pneumatic collet (13), a pressing head (11), a positioning seat (12) and a supporting positioner (14); characterized in that: The frame (5) is provided with a slide A (7) and a slide B (8) which are slidably mounted at intervals via a slide rail (6); a pressing cylinder A (9) and a pressing cylinder B (10) are respectively fixedly mounted on the frame (5) above the slide A (7) and the slide B (8); the pressing cylinder A (9) is connected to the slide A (7); the pressing cylinder B (10) is connected to the slide B (8); a pressure head (11) is mounted on the slide A (7); a positioning seat (12) is mounted on the frame (5) below the pressure head (11); a pneumatic collet (13) is mounted on the slide B (8); and a supporting positioner (14) is mounted on the frame (5) below the pneumatic collet (13).

2. The double-head press-fitting device for an automobile mandrel assembly according to claim 1, characterized in that: The pressing head (11) is in a cylindrical structure; a pressing countersunk hole (15) is provided at the bottom end of the pressing head (11); and the lower end of the pressing countersunk hole (15) is in a conical structure.

3. The double-head press-fitting device for an automobile mandrel assembly according to claim 1, characterized in that: The positioning seat (12) is provided with a positioning countersunk hole (16); a through hole (17) is provided in the middle of the positioning countersunk hole (16).

4. The double-head press-fitting device for an automobile mandrel assembly according to claim 1, characterized in that: The support positioner (14) comprises a rotating base (19), a pneumatic clamp (21) and a positioning shell (20); the rotating base (19) is mounted on the frame (5) below the pneumatic collet (13) via a motor (18); the positioning shell (20) is mounted on the rotating base (19); and the pneumatic clamp (21) is mounted inside the positioning shell (20).

5. The double-head press-fitting device for an automobile mandrel assembly according to claim 4, characterized in that: The upper end of the positioning housing (20) is provided with a positioning stepped hole (22).

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