Clamping device for assembling irregular rack

Abstract

The utility model relates to the technical field of automatic assembly, in particular to a clamping device for assembling irregular racks, which comprises a spring chuck tool, a chuck mechanism, a transition tool, a belt, a rotating wheel, a servo motor and a base, the servo motor is mounted on the base, and a small rotating wheel and a large rotating wheel which can rotate are mounted on the front side of the base. A shaft of the servo motor is connected with the center of the small rotating wheel, the belt is arranged outside the small rotating wheel and the large rotating wheel in a sleeving mode, the front end of the large rotating wheel is connected with the rear end of the chuck mechanism through the transition tool, the spring chuck tool is embedded into a front end installation groove of the chuck mechanism, and the front end of the spring chuck tool clamps the end of the rack. Compared with the prior art, a guide rod is omitted, the spring chuck tool and the chuck mechanism are matched to clamp the irregular rack, the production takt of rack assembly is saved, the rack assembly efficiency is improved, and a foundation is laid for follow-up automatic assembly of the irregular rack.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic assembly technical field, concretely is a kind of clamping device for irregular rack assembly. BACKGROUND

[0002] When rack is assembled in electric power steering system, rack needs to be clamped. Since the end face of the rack of new electric power steering system is irregular shape, there is the problem of rack clamping difficulty.

[0003] At present, three-jaw tooling is used to support rack with guide rod to clamp irregular rack together. However, it is found in actual application that the setting of guide rod has certain influence on the assembly efficiency of rack, and cannot meet the requirements of product production rhythm.

[0004] Therefore, it is necessary to design a clamping device for irregular rack assembly to clamp irregular-shaped rack while improving the assembly efficiency of rack. SUMMARY

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of clamping device for irregular rack assembly, clamp irregular-shaped rack while improving the assembly efficiency of rack.

[0006] In order to achieve the above purpose, the utility model is a kind of clamping device for irregular rack assembly, including spring collet tooling, chuck mechanism, transition tooling, belt, rotating wheel, servo motor, base, servo motor is installed on the base, the front side of base is installed with rotatable small rotating wheel, large rotating wheel, the shaft of servo motor is connected with the center of small rotating wheel, belt is sleeved on the outside of small rotating wheel, large rotating wheel, transition tooling is used to connect between the front end of large rotating wheel and the rear end of chuck mechanism, spring collet tooling is embedded in the front end mounting groove of chuck mechanism, the end of spring collet tooling clamps the end of rack.

[0007] The chuck mechanism includes a mechanism body and a cylinder, the front end of the mechanism body is provided with a mounting groove, the cylinder is installed in the mounting groove, the surface of the mechanism body is provided with an air inlet hole and an air outlet hole communicated with the mounting groove, the air inlet hole and the air inlet end of the cylinder are connected by an air inlet pipe, and the air outlet hole and the air outlet end of the cylinder are connected by an air outlet pipe.

[0008] The rear end of the mechanism body is provided with a positioning pin, and the positioning pin is inserted into the positioning hole in the front end of the transition tooling.

[0009] The spring collet tool comprises a tool body, the tool body has a through hole penetrating from front to back, the rear end of the tool body has a connecting structure outside, the front part of the tool body has a plurality of split structures, a gap is arranged between two adjacent split structures, and the front end of the split structure has a profiled avoiding structure inside.

[0010] The connecting structure is a boss structure, and the boss structure is inserted into a corresponding groove of the chuck mechanism.

[0011] The profiled avoiding structure matches the end surface structure of the rack.

[0012] Compared with the prior art, the guide rod is cancelled, the spring collet tool and the chuck mechanism are matched to realize clamping of the irregular rack, the production rhythm of rack assembly is saved, the assembly efficiency of the rack is improved, and a foundation is laid for subsequent automatic assembly of the irregular rack. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model.

[0014] Figure 2 It is a structural schematic view of the chuck mechanism of the utility model.

[0015] Figure 3 It is a structural schematic view of the spring collet tool of the utility model. DETAILED DESCRIPTION

[0016] The utility model will be further described in combination with the drawings.

[0017] Referring to Figure 1 The utility model discloses a clamping device for irregular rack assembly, which comprises a spring collet tool, a chuck mechanism, a transition tool, a belt, a rotating wheel, a servo motor, a base, a servo motor 7 is installed on the base 8, a rotatable small rotating wheel 6 and a large rotating wheel 9 are installed on the front side of the base 8, the shaft of the servo motor 7 is connected with the center of the small rotating wheel 6, a belt 5 is sleeved outside the small rotating wheel 6 and the large rotating wheel 9, a transition tool 4 is used to connect the front end of the large rotating wheel 9 and the rear end of the chuck mechanism 2, a spring collet tool 3 is embedded into the front end mounting groove 25 of the chuck mechanism 2, and the front end of the spring collet tool 3 clamps the end of a rack 1. The spring collet tool 3 is used for clamping the rack 1, and the transition tool 4 is used for connecting the large rotating wheel 9 and the chuck mechanism 2.

[0018] Referring to Figure 2The chuck mechanism 2 comprises a mechanism body 21, a cylinder, the front end of the mechanism body 21 is provided with a mounting groove 25, the cylinder is mounted in the mounting groove 25, the surface of the mechanism body 21 is provided with an air inlet hole 23 and an air outlet hole in communication with the mounting groove 25, the air inlet hole 23 is connected with the air inlet end of the cylinder by an air inlet pipe, and the air outlet hole is connected with the air outlet end of the cylinder by an air outlet pipe.

[0019] The rear end of the mechanism body 21 is provided with a positioning pin, the positioning pin is inserted into a positioning hole in the front end of the transition tool 4, so that the mechanism body 21 is positioned and installed with the transition tool 4.

[0020] Referring to Figure 3 The spring chuck tool 3 comprises a tool body 31, the tool body 31 has a through hole penetrating through the front and the rear, the outer side of the rear end of the tool body 31 has a connecting structure 32, the front part of the tool body 31 has a plurality of split structures 33, a gap is arranged between two adjacent split structures 33, and the inner side of the front end of the split structure 33 has a profiled avoiding structure 34.

[0021] The connecting structure 32 is a boss structure, and the boss structure is inserted into the corresponding groove of the chuck mechanism 2.

[0022] The profiled avoiding structure 34 is matched with the end face structure of the rack 1, avoids the irregular position of the end face of the rack 1, and makes the tool body 31 adhere to the rack 1, so that the rack 1 can be clamped tightly.

[0023] The spring chuck tool 3 is of an integrated structure, and the material is 60SiMn, so that the repeated deformation requirement is met.

[0024] In the working process, the spring chuck tool 3 is placed in the front end mounting groove 25 of the chuck mechanism 2, the cylinder is contracted, under the pressure of the air pressure, the spring chuck tool 3 is pulled backward, the split structure 33 of the spring chuck tool 3 is extruded by the front end mounting groove 25 and is contracted inward, and the rack 1 is clamped.

[0025] The servo motor 7 drives the small rotating wheel 6 to rotate, the large rotating wheel 9 is driven to rotate through the belt 5, the transition tool 4, the chuck mechanism 2 and the spring chuck tool 3 rotate together, and the spring chuck tool 3 and the rack 1 always keep the fixed grabbing position in the rotating process.

[0026] After the assembly is completed, the cylinder is stretched, under the pressure of the air pressure, the spring chuck tool 3 is pushed forward, the split structure 33 of the spring chuck tool 3 is exposed outside the front end mounting groove 25 and is unfolded outward, and the rack 1 is loosened.

[0027] The utility model discloses cancel the guide rod, adopt spring chuck tool, chuck mechanism cooperation realizes the clamping of irregular rack, saves the production rhythm of rack assembly, improves the assembly efficiency of rack, and lays the foundation for the automatic assembly of subsequent irregular rack.

Claims

1. A clamping device for irregular rack assembly, comprising a spring collet tool, a chuck mechanism, a transition tool, a belt, a rotating wheel, a servo motor, a base, characterized in that: The base (8) is provided with a servo motor (7), the front side of the base (8) is provided with a rotatable small rotating wheel (6) and a large rotating wheel (9), the shaft of the servo motor (7) is connected with the center of the small rotating wheel (6), a belt (5) is sleeved on the small rotating wheel (6) and the large rotating wheel (9), the front end of the large rotating wheel (9) is connected with the rear end of the chuck mechanism (2) through a transition tool (4), and the spring collet tool (3) is embedded in the front end mounting groove (25) of the chuck mechanism (2), and the front end of the spring collet tool (3) clamps the end of the rack (1).

2. A clamping device for irregular rack assembly as claimed in claim 1 wherein: The chuck mechanism (2) comprises a mechanism body (21) and a cylinder, the front end of the mechanism body (21) is provided with a mounting groove (25), the mounting groove (25) is provided with the cylinder, the surface of the mechanism body (21) is provided with an air inlet hole (23) and an air outlet hole in communication with the mounting groove (25), the air inlet hole (23) and the air inlet end of the cylinder are connected through an air inlet pipe, and the air outlet hole and the air outlet end of the cylinder are connected through an air outlet pipe.

3. A clamping device for irregular rack assembly as claimed in claim 2, wherein: The rear end of the mechanism body (21) is provided with a positioning pin, and the positioning pin is inserted into the positioning hole in the front end of the transition tool (4).

4. A clamping device for irregular rack assembly as claimed in claim 1 wherein: The spring collet tool (3) comprises a tool body (31), the tool body (31) has a through hole penetrating through the front and the rear, the outer side of the rear end of the tool body (31) is provided with a connecting structure (32), the front part of the tool body (31) is provided with a plurality of split structures (33), the gap is arranged between two adjacent split structures (33), and the inner side of the front end of the split structure (33) is provided with a profiled avoiding structure (34).

5. A clamping device for irregular rack assembly as claimed in claim 4 wherein: The connecting structure (32) is a boss structure, and the boss structure is inserted into the corresponding groove in the chuck mechanism (2).

6. A clamping device for irregular rack assembly as claimed in claim 4 wherein: The profiled avoiding structure (34) is matched with the end surface structure of the rack (1).

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