Automatic clamping and positioning assembly for vehicle body shell

Abstract

The utility model provides an automatic car body shell clamping and positioning assembly which comprises a supporting and positioning device and two clamping and fixing devices which are arranged on a base, the supporting and positioning device comprises a positioning support, and first supporting pieces are fixedly arranged at the two ends of the top of the positioning support respectively; the two clamping and fixing devices are arranged on the two sides of one end of the supporting and positioning device, each clamping and fixing device comprises a fixing support, a supporting plate part is horizontally arranged at the front end of each fixing support, and a second supporting piece is arranged on each supporting plate part; a clamping air cylinder is arranged at the rear end of the fixed support through an air cylinder seat, a connecting arm is connected to an output rotating shaft of the clamping air cylinder through an overturning frame, one end of the connecting arm is connected with a connecting plate, a first clamping piece matched with the first supporting piece in position is arranged at the bottom of the connecting plate, and a second clamping piece matched with the second supporting piece in position is arranged at the bottom of the connecting arm. The clamping air cylinder drives the connecting arm to turn over, so that the first supporting piece is matched with the first clamping piece, the second supporting piece is matched with the second clamping piece, clamping and fixing of the vehicle body shell are achieved, rapid and accurate clamping and positioning are achieved, and the welding efficiency of the vehicle body shell is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and in particular relates to an automatic clamping and positioning component for a vehicle body shell. Background Art

[0002] In the process of automobile manufacturing, there is a process of welding and assembling various parts of the body shell. The current technology has replaced the manual production form with a mechanized production line. The mechanized production line equipment adopts a connection and assembly form to form a fully functional operating platform bracket. After the workpiece is clamped and transported, the workpiece is placed on a specific operating platform, and various support units, clamping units and positioning units on the operating platform are used to clamp the workpiece in multiple directions, so that the workpiece and the operating platform are completely fixed. Chinese patent document: CN202222645063.5 discloses a positioning fixture for body welding. When clamping the body, the application places the body on the base, and then according to the position of the body frame, the hand lever is used to turn the adjustment seat to drive the adjustment rod to rotate, so that the sliding sleeve moves, and the spacing between the second fixed plate and the first fixed plate is changed, so as to position and clamp the body. This clamping and fixing method requires manual operation, which increases the burden of manual operation and affects the efficiency of body welding. Utility Model Content

[0003] The main purpose of the utility model is to provide an automated clamping and positioning assembly for a vehicle body shell, which solves the problem in the prior art that the clamping and positioning assembly requires manual operation, resulting in slow clamping and positioning speed and affecting welding efficiency.

[0004] The specific technical solutions are as follows:

[0005] An automatic clamping and positioning assembly for a vehicle body shell, comprising a supporting and positioning device and two clamping and fixing devices arranged on a base, the supporting and positioning device comprising a positioning support, the top two ends of the positioning support are respectively fixedly provided with a first support member; a positioning cylinder is longitudinally arranged on the surface of one end of the positioning support through a mounting seat, and a positioning pin for positioning the vehicle body shell is longitudinally arranged on the piston rod at the top of the positioning cylinder; the two clamping and fixing devices are respectively symmetrically arranged on both sides of one end of the supporting and positioning device, and the clamping and fixing devices each comprise a fixed support, and a support is horizontally arranged at the front end of the fixed support A plate portion, and a second support member is provided on the support plate portion; a clamping cylinder is provided at the rear end of the fixed support through a cylinder seat, and a connecting arm is connected to the output rotating shaft of the clamping cylinder through a flip frame, and one end of the connecting arm is connected to a connecting plate, and a first clamping member adapted to the position of the first support member is provided at the bottom of the connecting plate, and a second clamping member adapted to the position of the second support member is provided at the bottom of the connecting arm, and the connecting arm is driven to flip by the clamping cylinder, so that the first support member cooperates with the first clamping member and the second support member cooperates with the second clamping member, thereby realizing the clamping and fixation of the vehicle body shell.

[0006] Furthermore, sensors are installed on both sides of the top of the positioning support and at the center of the top of the positioning support through mounting plates.

[0007] Furthermore, a plurality of arc-shaped notches corresponding to the positions of the screw holes of the vehicle body shell are formed on the side wall of the connecting plate.

[0008] Furthermore, the upper ends of the first support member and the second support member are both vertically arranged, and the top ends of the first support member and the second support member are located at the same height.

[0009] Furthermore, the top of the positioning pin is no higher than the top of the first supporting member.

[0010] Furthermore, the positioning support is in an "I"-shaped structure, the fixed support is in an "S"-shaped structure, and the bottom ends of the positioning support and the fixed support are respectively fixed to the base by fasteners.

[0011] The beneficial effects of the utility model are embodied in:

[0012] In the utility model, the body shell on the support is sensed by a sensor, and then the clamping and fixing device uses a clamping cylinder to drive the connecting arm to flip, so that the first clamping member and the second clamping member are respectively matched with the first support member and the second support member, so as to automatically clamp the body shell, and finally position it through the positioning pin, so as to achieve fast and accurate clamping and positioning, which greatly improves the welding efficiency of the body shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the clamping and positioning assembly of the utility model.

[0014] Figure 2 It is a three-dimensional diagram of the supporting and positioning device in the utility model.

[0015] Explanation of the accompanying drawings: base 1, supporting and positioning device 2, positioning support 21, first support member 22, mounting seat 23, positioning cylinder 24, positioning pin 25, sensor 26, clamping and fixing device 3, fixing support 31, support plate portion 32, second support member 33, cylinder seat 34, clamping cylinder 35, connecting arm 36, connecting plate 37, arc-shaped recess 371, first clamping member 38, second clamping member 39. DETAILED DESCRIPTION

[0016] In order to make the technical solution of the utility model clearer, the utility model is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the utility model and any solution derived from conventional reasoning shall fall within the protection scope of the utility model. The fixed connection and fixed setting mentioned in the utility model are all common connection methods in the mechanical field, including welding, bolt and nut connection, and screw connection.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] like Figure 1-2As shown, the present embodiment provides an automated clamping and positioning assembly for a vehicle body shell, the clamping and positioning assembly is arranged on a base 1, and the base 1 is also provided with several groups of other types of clamping and positioning structures. The clamping and positioning assembly in the present embodiment includes a supporting and positioning device 2 and two clamping and fixing devices 3 arranged on the base 1, the supporting and positioning device 2 includes a positioning support 21, the positioning support 21 is in the shape of an "I", and first support members 22 are fixedly provided at both ends of the top of the positioning support 21; a positioning cylinder 24 is longitudinally provided on the surface of one end of the positioning support 21 through a mounting seat 23, and a positioning pin 25 for positioning the vehicle body shell is longitudinally provided on the piston rod at the top of the positioning cylinder 24; the two clamping and fixing devices are symmetrically arranged on both sides of one end of the supporting and positioning device 2, and the clamping and fixing devices each include a fixing support 31, the fixing support 31 is in the shape of an "I", and the front end of the fixing support 31 is horizontally provided. There is a support plate portion 32, on which a second support member 33 is provided; a clamping cylinder 35 is provided at the rear end of the fixed support 31 through a cylinder seat 34, and a connecting arm 36 is connected to the output shaft of the clamping cylinder 35 through a flip frame, and one end of the connecting arm 36 is connected to a connecting plate 37, and a first clamping member 38 adapted to the position of the first support member 22 is provided at the bottom of the connecting plate 37, and a second clamping member 39 adapted to the position of the second support member 33 is provided at the bottom of the connecting arm 36. The connecting arm 36 is driven to flip by the clamping cylinder 35, so that the first support member 22 cooperates with the first clamping member 38 and the second support member 33 cooperates with the second clamping member 39, thereby achieving clamping and fixing of the vehicle body shell.

[0019] In this embodiment, sensors 26 are installed on both sides of the top of the positioning support 21 and at the center of the top of the positioning support 21 through mounting plates, respectively. The sensors 26 are used to detect the position of the vehicle body shell on the support.

[0020] In this embodiment, a plurality of arc-shaped notches 371 corresponding to the positions of the screw holes of the vehicle body shell are formed on the side wall of the connecting plate 37 .

[0021] In this embodiment, the upper ends of the first support member 22 and the second support member 33 are both vertically arranged, and the top ends of the first support member 22 and the second support member 33 are at the same height, and the top end height of the positioning pin 25 is not higher than the top end of the first support member 22.

[0022] In this embodiment, the bottom ends of the positioning support 21 and the fixing support 31 are fixed to the base 1 by fasteners respectively.

[0023] The working principle of the clamping and positioning assembly of the utility model is as follows: when the body shell is transferred by a mechanical gripper and placed on a number of supports, the position of the body shell on the supports is sensed by the sensor 26, and then the clamping and fixing device 3 uses the clamping cylinder 35 to drive the connecting arm 36 to flip, so that the first clamping member and the second clamping member are respectively matched with the first support member 22 and the second support member 33, so as to automatically clamp the body shell, and finally position it through the positioning pin 25, so as to achieve fast and accurate clamping and positioning.

[0024] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automated clamping and positioning assembly for a vehicle body shell, characterized in that: The invention comprises a supporting positioning device (2) and two clamping and fixing devices (3) arranged on a base (1), wherein the supporting positioning device (2) comprises a positioning support (21), and first supporting members (22) are respectively fixedly arranged at both ends of the top of the positioning support (21); a positioning cylinder (24) is longitudinally arranged on the surface of one end of the positioning support (21) through a mounting seat (23), and a positioning pin (25) for positioning a vehicle body shell is longitudinally arranged on the piston rod at the top end of the positioning cylinder (24); the two clamping and fixing devices are respectively symmetrically arranged on both sides of one end of the supporting positioning device (2), and the clamping and fixing devices each comprise a fixing support (31), and a supporting plate portion (32) is horizontally arranged at the front end of the fixing support (31), and a second supporting member (22) is arranged on the supporting plate portion (32). 33); A clamping cylinder (35) is provided at the rear end of the fixed support (31) through a cylinder seat (34); a connecting arm (36) is connected to the output shaft of the clamping cylinder (35) through a flip frame; one end of the connecting arm (36) is connected to a connecting plate (37); a first clamping member (38) adapted to the position of the first support member (22) is provided at the bottom of the connecting plate (37); a second clamping member (39) adapted to the position of the second support member (33) is provided at the bottom of the connecting arm (36); the connecting arm (36) is driven to flip by the clamping cylinder (35), so that the first support member (22) cooperates with the first clamping member (38) and the second support member (33) cooperates with the second clamping member (39), thereby clamping and fixing the vehicle body shell.

2. The vehicle body shell automated clamping and positioning assembly according to claim 1, characterized in that: Sensors (26) are respectively installed on both sides of the top of the positioning support (21) and at the center of the top of the positioning support (21) via mounting plates.

3. The vehicle body shell automated clamping and positioning assembly according to claim 1, characterized in that: The side wall of the connecting plate (37) is provided with a plurality of arc-shaped notches (371) corresponding to the positions of the screw holes of the vehicle body shell.

4. The vehicle body shell automated clamping and positioning assembly according to claim 1, characterized in that: The upper ends of the first support member (22) and the second support member (33) are both arranged vertically, and the top ends of the first support member (22) and the second support member (33) are located at the same height.

5. The vehicle body shell automated clamping and positioning assembly according to claim 4, characterized in that: The top end of the positioning pin (25) is no higher than the top end of the first support member (22).

6. The vehicle body shell automated clamping and positioning assembly according to claim 1, characterized in that: The positioning support (21) is in the shape of an I-shaped structure, the fixed support (31) is in the shape of an upper-shaped structure, and the bottom ends of the positioning support (21) and the fixed support (31) are respectively fixed to the base (1) by fasteners.

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