Electric circulating ball steering gear screw assembly punch device

Abstract

The utility model relates to a kind of electric circulating ball steering gear screw rod assembly knock pin device, belong to the technical field of automobile electric circulating ball steering gear assembly tooling technology.The electric circulating ball steering gear screw rod assembly knock pin device, including goniometer, bottom plate, support seat A, support seat B, support seat C, left V-shaped pressing plate and press pin rod;The support seat A, support seat B and support seat C are installed on the bottom plate with interval;The positioning block is installed on the upper end of support seat A by assembly bolt;The positioning block is threadedly connected with guide sleeve;Press pin rod and pressure head are contained in guide sleeve.The electric circulating ball steering gear screw rod assembly knock pin device, solve the precision not enough and the problem of low qualified rate of existing knock pin mode of electric circulating ball steering gear screw rod assembly, especially suitable for the needs of electric circulating ball steering gear screw rod assembly knock pin use.

Description

Technical Field

[0001] This utility model relates to a pinning device for an electric recirculating ball steering gear screw assembly, belonging to the technical field of automotive electric recirculating ball steering gear assembly tools. Background Technology

[0002] In the field of automotive electric recirculating ball steering gear assembly technology, it is necessary to drill holes and insert pins into the screw. Existing methods for drilling and inserting pins into the screw, such as the input shaft and screw assembly alignment and pinning fixture disclosed in utility model patent CN209453430U, while meeting the usage requirements to a certain extent, have the following problems: First: Existing fixtures only fix one end of the workpiece, which leads to insufficient pinning accuracy due to unstable assembly.

[0003] Second: Existing fixtures cannot accurately adjust the angle of the workpiece during operation, resulting in a low pass rate.

[0004] Therefore, it is necessary to develop a new locking device to solve the above-mentioned problems existing in the locking method of the current electric recirculating ball steering gear screw assembly. Summary of the Invention

[0005] The purpose of this utility model is to provide a pinning device for the screw assembly of an electric recirculating ball steering gear, so as to solve the problems of insufficient accuracy and low pass rate of the existing pinning method for the screw assembly of the electric recirculating ball steering gear.

[0006] The technical solution of this utility model is: A pinning device for an electric recirculating ball steering gear screw assembly includes an angle gauge, a base plate, support seat A, support seat B, support seat C, a left V-shaped pressure plate, a right V-shaped pressure plate, a positioning block, a guide sleeve, a pressure head, and a pressure pin rod; characterized in that: support seats A, B, and C are installed at intervals on the base plate; a left V-shaped pressure plate is mounted on the upper end of support seat B via a locking screw; a right V-shaped pressure plate is mounted on the upper end of support seat C via a locking screw; a positioning block is mounted on the upper end of support seat A via an assembly bolt; a guide sleeve is threaded onto the positioning block; and a pressure pin rod and a pressure head are installed inside the guide sleeve.

[0007] The support base A has a transverse positioning protrusion at the middle of its upper end; the support base A has a waste material through hole in its middle; the upper end of the waste material through hole is connected to the upper end of the support base A through a connecting hole; a positioning block is installed above the connecting hole by mounting bolts.

[0008] The positioning block has a convex cross-section; a U-shaped positioning groove is provided in the middle of the positioning block; positioning teeth are evenly distributed inside the positioning groove. A guide sleeve is installed above the positioning groove through a threaded hole.

[0009] The guide sleeve is provided with a stepped guide through hole; a pressure pin and a pressure head are movably installed in the guide through hole.

[0010] The aforementioned pressure pin has a stepped shaft structure.

[0011] The positioning block and guide sleeve are covered with protective covers.

[0012] Both support base B and support base C are provided with V-shaped positioning holes.

[0013] The advantages of this utility model are: This pinning device for the screw assembly of an electric recirculating ball steering gear is compact and ingeniously designed. It can be centered using an angle gauge and the two ends of the workpiece can be fixed by support B and support C. This solves the problems of insufficient accuracy and low pass rate of existing pinning methods for electric recirculating ball steering gear screw assemblies, and is particularly suitable for the pinning needs of electric recirculating ball steering gear screw assemblies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an isometric view of the present invention after the protective cover has been removed; Figure 3 This is a schematic diagram of the structure of this utility model after removing the support base A; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 for Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the main structure of this utility model; Figure 7 for Figure 6 Schematic diagram of the CC-axis structure; Figure 8 for Figure 7 Enlarged structural diagram at point D; Figure 9 for Figure 2 A magnified structural diagram at point E in the middle.

[0015] In the diagram: 1. Base plate; 2. Support A; 3. Support B; 4. Support C; 5. Locking screw; 6. Left V-shaped pressure plate; 7. Right V-shaped pressure plate; 8. Assembly bolt; 9. Positioning block; 10. Guide sleeve; 11. Pressure pin; 12. Pressure head; 13. Lateral positioning protrusion; 14. Waste material through hole; 15. Connecting hole; 16. Positioning groove; 17. Positioning teeth; 18. Guide through hole; 19. Protective cover; 20. V-shaped positioning port; 21. Angle gauge. Detailed Implementation

[0016] The electric recirculating ball steering gear screw assembly pinning device includes an angle gauge 21, a base plate 1, a support seat A2, a support seat B3, a support seat C4, a left V-shaped pressure plate 6, a right V-shaped pressure plate 7, a positioning block 9, a guide sleeve 10, a pressure head 12, and a pin rod 11 (see the instruction manual appendix). Figure 1 and 2 ).

[0017] Support bases A2, B3 and C4 are installed at intervals on the base plate 1.

[0018] Both support base B3 and support base C4 are provided with V-shaped positioning holes 20; the upper end of support base B3 is equipped with a left V-shaped pressure plate 6 via locking screw 5; the upper end of support base C4 is equipped with a right V-shaped pressure plate 7 via locking screw 5 (see the instruction manual appendix). Figure 3 , 4 and 5).

[0019] During operation, the workpiece to be knocked out, the automotive electric recirculating ball steering gear assembly, can be placed on support base B3 and support base C4; then, the left V-shaped pressure plate 6 can clamp and fix the screw of the workpiece with the cooperation of the locking screw 5 and support base B3; the right V-shaped pressure plate 7 can clamp and fix the input shaft of the workpiece with the cooperation of the locking screw 5 and support base C4.

[0020] The upper end of the support base A2 is equipped with a positioning block 9 via assembly bolts 8 (see the instruction manual appendix). Figure 2 , 8 and 9).

[0021] The positioning block 9 has a convex cross-section; a U-shaped positioning groove 16 is provided in the middle of the positioning block 9; positioning teeth 17 are evenly distributed inside the positioning groove 16; a guide sleeve 10 is installed above the positioning groove 16 through a threaded hole. The purpose of this positioning block 9 is to clamp and fix the screw of the workpiece with the cooperation of the support seat A2 during operation; the positioning teeth 17 of the positioning block 9 can engage with the spline groove on the screw; thus, during the drilling process of the screw, the positioning block 9 can further press and fix the screw; thereby avoiding the problem of low drilling pass rate caused by unstable screw pressing.

[0022] The positioning block 9 is threadedly connected to the guide sleeve 10 (see the instruction manual appendix). Figure 8 and 9 The guide sleeve 10 has a stepped guide hole 18; a stepped shaft-shaped pressure pin 11 and a pressure head 12 are movably mounted in the guide hole 18. The positioning block 9 and the guide sleeve 10 are covered with a protective cover 19 (see the instruction manual appendix). Figure 1 and 8 ).

[0023] The guide sleeve 10 contains a pressure pin 11 and a pressure head 12 (see the instruction manual appendix). Figure 8 and 9 A transverse positioning protrusion 13 is provided at the middle of the upper end of the support base A2 (see the instruction manual appendix). Figure 9 The purpose of setting the transverse positioning protrusion 13 is to allow the workpiece to be placed on the support base B3 and support base C4 with one end of the workpiece only attached to the transverse positioning protrusion 13 during operation, thereby achieving the purpose of positioning the workpiece.

[0024] A waste through hole 14 is provided in the middle of the support base A2; the upper end of the waste through hole 14 is connected to the upper end of the support base A2 through a connecting hole 15. During operation, the waste chips generated during drilling can be discharged through the connecting hole 15 and the waste through hole 14.

[0025] When the electric recirculating ball steering gear screw assembly locking device is in operation, the workpiece is first placed on support seat B3 and support seat C4; and the screw end of the workpiece is clamped and fixed on support seat B3 by the left V-shaped pressure plate 6 and locking screw 5.

[0026] After the above steps are completed, install the angle gauge 21 on the input shaft of the workpiece, then rotate the input shaft and use the angle gauge 21 to find the center; after finding the center, clamp and fix the input shaft of the workpiece on the support C4 by using the right V-shaped pressure plate 7 and the locking screw 5.

[0027] After the above steps are completed, first install the positioning block 9 on the support base A2 using the assembly bolts 8; at this time, the positioning block 9 further fixes the screw end of the workpiece through the positioning slot 16 and the positioning teeth 17; after the positioning block 9 is installed, install the guide sleeve 10 and the protective cover 19 in sequence.

[0028] After the guide sleeve 10 is installed, the drilling machine is operated to pass through the guide sleeve 10 from the inside to complete the drilling of the workpiece screw. After drilling is completed, the pin to be assembled, the pin rod 11, and the pressure head 12 are placed into the guide sleeve 10 in sequence. Then, a press is used to press the pin through the pressure head 12 and the pin rod 11, forcing it into the drilled hole. At this point, the pinning device of the electric recirculating ball steering gear screw assembly has completed the pinning work. After replacing the new workpiece, the pinning device can enter the next working cycle.

[0029] This electric recirculating ball steering gear screw assembly pinning device has a compact structure and ingenious design. It can be centered by an angle gauge and the two ends of the workpiece can be fixed by support B3 and support C4. This solves the problems of insufficient accuracy and low pass rate of existing pinning methods for electric recirculating ball steering gear screw assemblies, and is particularly suitable for the pinning needs of electric recirculating ball steering gear screw assemblies.

Claims

1. A pinning device for an electric recirculating ball steering gear screw assembly, comprising an angle gauge (21), a base plate (1), a support A (2), a support B (3), a support C (4), a left V-shaped pressure plate (6), a right V-shaped pressure plate (7), a positioning block (9), a guide sleeve (10), a pressure head (12), and a pinning rod (11); characterized in that: The base plate (1) is provided with support seats A (2), B (3) and C (4) installed at intervals; the upper end of the support seat B (3) is fitted with a left V-shaped pressure plate (6) by a locking screw (5); the upper end of the support seat C (4) is fitted with a right V-shaped pressure plate (7) by a locking screw (5); the upper end of the support seat A (2) is fitted with a positioning block (9) by an assembly bolt (8); the positioning block (9) is threaded with a guide sleeve (10); the guide sleeve (10) contains a pressure pin (11) and a pressure head (12).

2. A punch device for a power circulating ball steering gear screw assembly as defined in claim 1, wherein: The support base A (2) is provided with a transverse positioning protrusion (13) at the middle of its upper end; the support base A (2) is provided with a waste material through hole (14) at the middle of its middle; the upper end of the waste material through hole (14) is connected to the upper end of the support base A (2) through a connecting hole (15); a positioning block (9) is installed above the connecting hole (15) by an assembly bolt (8).

3. The locking device for the screw assembly of an electric recirculating ball steering gear according to claim 2, characterized in that: The positioning block (9) has a "convex" cross-section; a "U" shaped positioning groove (16) is provided in the middle of the positioning block (9); positioning teeth (17) are evenly distributed inside the positioning groove (16); a guide sleeve (10) is installed above the positioning groove (16) through a threaded hole.

4. A punch device for a power circulating ball steering gear screw assembly as defined in claim 3 wherein: The guide sleeve (10) is provided with a stepped guide through hole (18); a pressure pin (11) and a pressure head (12) are movably installed in the guide through hole (18).

5. A punch device for a power circulating ball steering gear screw assembly as defined in claim 4 wherein: The aforementioned pressure pin (11) has a stepped shaft structure.

6. A punch device for a power circulating ball steering gear screw assembly as defined in claim 1 wherein: The positioning block (9) and guide sleeve (10) are covered with a protective cover (19).

7. A punch device for a power circulating ball steering gear screw assembly as defined in claim 1 wherein: Both the support base B (3) and the support base C (4) are provided with V-shaped positioning ports (20).

Images