Precise positioning and loading device for small panels of a motor vehicle body

Abstract

The application belongs to the technical field of automobile production, and particularly relates to a precise positioning and feeding device for small plate parts of automobile bodies, which comprises a sliding table mechanism, a linkage floating mechanism and a manual clamping mechanism; the manual clamping mechanism is installed on the sliding table mechanism through the linkage floating mechanism. The device has simple structure, reasonable design, convenient and fast operation, stable and reliable performance, and greatly improved production efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile production, and particularly relates to a precise positioning and feeding device for small plate parts of an automobile body. BACKGROUND

[0002] At present, in the automobile body-in-white welding automation production line, there are manual hinge feeding station clamps in front and rear door areas, and the hinges play a very important assembly role on the automobile body, and have a great influence on the adjustment of the first installation. Therefore, the assembly positions of the hinges must be accurate; the relative positions of each group of hinges and the relative positions of the door must be ensured within a very small tolerance range, which requires the technician to design the clamp to ensure the accurate positioning of the plate part and to ensure sufficient installation space for manual installation of the hinge. However, the shape of the hinge is small, and the positioning surface is insufficient, which is difficult to position and ensure uniformity, resulting in the need for manual adjustment multiple times, so that the design of the clamp is quite limited. SUMMARY

[0003] The purpose of the present application is to provide a precise positioning and feeding device for small plate parts of an automobile body to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a precise positioning and feeding device for small plate parts of an automobile body, comprising a sliding table mechanism, a linkage floating mechanism and a manual clamping mechanism; the manual clamping mechanism is installed on the sliding table mechanism through the linkage floating mechanism.

[0005] Preferably, the sliding table mechanism comprises a reference base plate, a fixed base, a first air cylinder, a locking pressure block, a limiting block, a first sliding rail, a dustproof plate, a limiting block assembly one, a limiting block assembly two, a buffer assembly, a first mounting plate, an air cylinder head assembly, a second air cylinder and an air cylinder fixing seat;

[0006] The two ends of the two first sliding rails are respectively installed on the fixed base, and the fixed base is installed on the reference base plate. The three sides of the fixed base at the two ends of each first sliding rail are respectively installed with a dustproof plate; the first mounting plate is connected with the first sliding rail, the linkage floating mechanism and the limiting block, respectively; the first air cylinder is installed on the reference base plate, and the cylinder pressure arm thereof is connected with the locking pressure block; the second air cylinder is installed on the air cylinder fixing seat, and the cylinder body thereof is connected with the first mounting plate through the air cylinder head assembly, and the stroke thereof is determined by the stroke of the first sliding rail, and the stroke of the sliding rail is determined by the feeding space; the first sliding rail is provided with a buffer assembly for shock absorption and speed reduction at the retracted end, and is respectively provided with a limiting block assembly one and a limiting block assembly two, wherein the buffer assembly, the limiting block assembly one and the limiting block assembly two are all installed on the reference base plate.

[0007] Preferably, the linkage floating mechanism comprises a base plate, a second sliding rail, a second mounting plate, a third cylinder, a first cylinder mounting seat, a cylinder head assembly, a second cylinder mounting seat, a fourth cylinder, a locking pressure block, a third limit block assembly, a fourth limit block assembly, a fifth limit block assembly, a first floating assembly mounting plate, a second floating assembly mounting plate, a floating assembly, a first positioning block assembly, a second positioning block assembly and a synchronization plate.

[0008] The first positioning block assembly and the second positioning block assembly are connected to the second floating assembly mounting plate, wherein switches are arranged in the first positioning block assembly and the second positioning block assembly to detect whether the plate is present, and the floating assembly is mounted on the second floating assembly mounting plate and the first floating assembly mounting plate, wherein springs are arranged in the floating assembly to realize the floating function, the base plate is mounted on the first mounting plate in the sliding table mechanism, the second sliding rail is mounted on the base plate, the second mounting plate is mounted on the second sliding rail, the second mounting plate is connected to the fourth limit block assembly and the fifth limit block assembly, the first floating assembly mounting plate is mounted on the second mounting plate, the third cylinder is mounted on the first cylinder mounting seat, the cylinder body is connected to the second mounting plate through the cylinder head assembly, the stroke is determined by the stroke of the second sliding rail, and the stroke of the second sliding rail is determined by the hinge exit space; the synchronization plate is used for connecting the two second floating assembly mounting plates to realize the synchronous advance and retreat function of the upper and lower hinges, the fourth cylinder is mounted on the second cylinder mounting seat, wherein the cylinder pressure arm is connected to the locking pressure block, and the second cylinder mounting seat and the third limit block assembly are mounted on the first mounting plate in the sliding table mechanism.

[0009] Preferably, the manual clamping mechanism comprises a fixed support seat, a manual cylinder and a clamping block assembly, the fixed support seat is connected to the second floating assembly mounting plate of the linkage floating mechanism, the clamping block assembly is mounted on the manual cylinder pressure arm, and the manual cylinder is mounted on the fixed support seat.

[0010] Preferably, the floating assembly is arranged between the first floating assembly mounting plate and the second floating assembly mounting plate, and the synchronization plate is connected between the two second floating assembly mounting plates.

[0011] The beneficial effects of the present application are as follows: the sliding table mechanism: the plate is loaded outside the vehicle body to optimize the operator loading space;

[0012] The linkage floating mechanism: accurate positioning according to the assembly position of the hinge, and ensuring that each group of hinges moves synchronously, floating compensation for errors of the plate and the hinge;

[0013] The manual clamping mechanism: final positioning and clamping of the plate, effectively ensuring the loading quality of small plates.

[0014] The device optimizes the operation loading space in the structure design, reduces the design difficulty of related clamps, has the characteristics of reasonable design, simple principle, good stability, convenient actual operation, and can effectively improve the production efficiency.

[0015] In summary, the structure is simple, reasonable in design, easy and fast to operate, stable and reliable in performance, and greatly improves the production efficiency; the present application can also be applied to the fixture structure design of other small parts requiring error compensation and synchronous installation, or the clamping of difficult-to-operate parts, and the application effect is very significant. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the front view of the overall structure of the present application;

[0017] Figure 2 is the back view of the overall structure of the present application;

[0018] Figure 3 is the structure of the sliding table mechanism of the present application;

[0019] Figure 4 is the structure of the linkage floating mechanism of the present application;

[0020] Figure 5 is the structure of the manual clamping mechanism of the present application;

[0021] In the figure:

[0022] 1 sliding table mechanism, 101 reference base plate, 102 fixed base, 103 first air cylinder, 104 locking pressure block, 105 limiting block, 106 first sliding rail, 107 dustproof plate, 108 first limiting block assembly, 109 second limiting block assembly, 110 buffer assembly, 111 first mounting plate, 112 cylinder head assembly, 113 second air cylinder, 114 cylinder fixing seat;

[0023] 2 linkage floating mechanism, 215 including base plate, 216 second sliding rail, 217 second mounting plate, 218 third air cylinder, 219 first air cylinder mounting seat, 220 cylinder head assembly, 221 second air cylinder mounting seat, 222 fourth air cylinder, 223 locking pressure block, 224 third limiting block assembly, 225 fourth limiting block assembly, 226 fifth limiting block assembly, 227 first floating assembly mounting plate, 228 second floating assembly mounting plate, 229 floating assembly, 230 first positioning block assembly, 231 second positioning block assembly, 232 synchronous plate.

[0024] 3 manual clamping mechanism, 333 including fixed support seat, 334 manual air cylinder, 335 clamping block assembly. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application will be described in detail below in combination with the drawings and preferred embodiments.

[0026] As Figures 1-5As shown, a precise positioning device for automobile front and rear door hinge, the device comprises the following three parts:

[0027] The slide mechanism 1 includes a reference base plate 101, a fixed base 102, a first cylinder 103, a locking block 104, a limiting block 105, a first slide rail 106, a dust plate 107, a first limiting block assembly 108, a second limiting block assembly 109, a buffer assembly 110, a first mounting plate 111, a cylinder head assembly 112, a second cylinder 113, a cylinder fixing seat 114.

[0028] The slide mechanism 1 is provided with two first slide rails 106 in parallel correspondence, both ends of which are respectively mounted on the fixed base 102, and the fixed base 102 is mounted on the reference base plate 101. The three sides of the fixed base 102 at both ends of each first slide rail 106 are respectively mounted with dust plates 107; the first mounting plate 111 is connected with the linkage floating mechanism 2 and the limiting block 105 through the first slide rail 106; the first cylinder 103 is mounted on the reference base plate 101, and the cylinder pressure arm is connected with the locking block 104; the second cylinder 113 is mounted on the cylinder fixing seat 114, and the cylinder body is connected to the first mounting plate 111 through the cylinder head assembly 112, the stroke of which is determined by the stroke of the first slide rail 106, and the stroke of the first slide rail 106 is determined by the loading space; the first slide rail 106 is provided with a buffer assembly 110 at the rear end for shock absorption and speed reduction, and is respectively provided with a first limiting block assembly 108 and a second limiting block assembly 109 for limiting the forward and backward position of the first slide rail 106, wherein the buffer assembly 110, the first limiting block assembly 108 and the second limiting block assembly 109 are all mounted on the reference base plate 101.

[0029] The linkage floating mechanism 2 includes a base plate 215, a second slide rail 216, a second mounting plate 217, a third cylinder 218, a first cylinder mounting seat 219, a cylinder head assembly 220, a second cylinder mounting seat 221, a fourth cylinder 222, a locking block 223, a third limiting block assembly 224, a fourth limiting block assembly 225, a fifth limiting block assembly 226, a first floating assembly mounting plate 227, a second floating assembly mounting plate 228, a floating assembly 229, a first positioning block assembly 230, a second positioning block assembly 231, and a synchronization plate 232.

[0030] According to the first positioning block assembly 230 and the second positioning block assembly 231 corresponding to the upper and lower hinges of the plate, the second floating assembly mounting plate 228 is connected, wherein the first positioning block assembly 230 and the second positioning block assembly 231 are provided with switches to detect whether the plate is present, the floating assembly 229 is installed on the second floating assembly mounting plate 228 and the first floating assembly mounting plate 227, wherein the floating assembly 229 is provided with a spring to realize the floating function, the base plate 215 is installed on the first mounting plate 111 in the sliding table mechanism 1, the second sliding rail 216 is installed on the base plate 215, the second mounting plate 217 is installed on the second sliding rail 216, the second mounting plate 217 is connected with the fourth limiting block assembly 225 and the fifth limiting block assembly 226, the first floating assembly mounting plate 227 is installed on the second mounting plate 217, the third cylinder 218 is installed on the first cylinder mounting seat 219, the cylinder body is connected to the second mounting plate 217 through the cylinder head assembly 220, the stroke is determined by the stroke of the second sliding rail 216, and the stroke of the second sliding rail 216 is determined by the hinge exit space; the synchronous plate 232 is used for connecting two second floating assembly mounting plates 228 to realize the synchronous advance and retreat function of the upper and lower hinges, the fourth cylinder 222 is installed on the second cylinder mounting seat 221, wherein the cylinder pressure arm is connected with the locking pressure block 223, and the second cylinder mounting seat 221 and the third limiting block assembly 224 are installed on the first mounting plate 111 in the sliding table mechanism 1.

[0031] The manual clamping mechanism 3 comprises a fixed support seat 333, a manual cylinder 334 and a clamping block assembly 335.

[0032] The fixed support seat 333 is connected to the second floating assembly mounting plate 228 of the linkage floating mechanism 2, the clamping block assembly 335 is installed on the pressure arm of the manual cylinder 334, and the manual cylinder 334 is installed on the fixed support seat 333.

[0033] The fixed base 102 at both ends of each first sliding rail 106 is installed on the reference base plate 101, the first mounting plate 111 is connected with the linkage floating mechanism 2, the first sliding rail 106 is retreated to the in-place state which is limited by the buffer assembly 110 and locked by the locking pressure block 104 driven by the first cylinder 103; the second sliding rail 216 provided in the linkage floating mechanism 2 is installed on the base plate 215, the linkage floating mechanism 2 is provided with the mounting plate two 228 connected with the manual clamping mechanism 3, the second sliding rail 216 is retreated to the in-place state which is limited by the fifth limiting block assembly 226 and locked by the locking pressure block 223 driven by the fourth cylinder 222; the fixed support seat 333 of the manual clamping mechanism 3 is connected to the second floating assembly mounting plate 228 of the linkage floating mechanism 2, and the clamping block assembly 335 is manually pressed and fixed to the hinge through the manual cylinder;

[0034] The structural features and working principle of the present application are as follows: the operator positions the part outside the vehicle body panel, at which time the slide rail mechanism is in a retracted position, the linkage floating mechanism is in a retracted position, the locking cylinder is in a clamped state, and the manual clamping cylinder is in an open state. Since the clamp is away from the vehicle body, the part space is increased, and the operation is very convenient. The positioning block assembly of the two linkage floating mechanisms positions the upper and lower hinges, the positioning block has a clamping edge, the operator's part positioning efficiency is improved, the upper and lower hinges are positioned, the detection switch identifies the upper and lower hinge positioning, manually clamps the two manual clamping cylinders, and transmits the cylinder to the position and the sensor identifies the hinge to the position signal, the slide rail mechanism retracts, the buffer buffers, the slide rail retracts to the position, the hinge and the panel reach the vehicle body position, the slide rail mechanism retracts to the position and transmits the signal,

[0035] The slide rail mechanism clamping cylinder clamps, locks the slide table, and the operator uses a tightening gun to fasten the hinge, so that the hinge is fixed on the door. After fastening, the manual clamping cylinder is opened, the linkage floating mechanism locking cylinder is opened and the signal is transmitted, the linkage floating mechanism slide rail is extended to the position and the signal is transmitted, the slide rail mechanism locking cylinder is opened and the signal is transmitted, and the slide rail is extended and the signal is transmitted.

[0036] The present application uses the slide table mechanism to position outside the vehicle body by the positioning block and the manual cylinder, then uses the slide rail mechanism to retract to the position, and then uses the linkage floating mechanism to eliminate the error caused by the difference of the panel, ensure the uniformity of the upper and lower hinges, and make the upper and lower hinges accurately reach the assembly position. Finally, the hinge fastening is completed.

[0037] The uniformity and floating property of the linkage floating mechanism are the design focus in the present application. There is an angle difference between the partial hinge and the vehicle body lap joint position. This difference will cause inaccurate position due to instability, so it needs to be analyzed according to different situations, and the installation angle of the telescopic cylinder can determine the forward direction.

[0038] It should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered within the scope of protection of the present application.

Claims

1. A precision positioning and mounting device for small automotive body panels, characterized in that... It comprises a sliding table mechanism, a linkage floating mechanism and a manual clamping mechanism; the manual clamping mechanism is installed on the sliding table mechanism through the linkage floating mechanism; The sliding table mechanism comprises a reference base plate, a fixed base, a first cylinder, a locking pressing block, a limiting block, a first sliding rail, a dustproof plate, a limiting block assembly one, a limiting block assembly two, a buffer assembly, a first mounting plate, a cylinder head assembly, a second cylinder and a cylinder fixing base; Two ends of each first sliding rail are respectively installed on the fixed base, and the fixed base is installed on the reference base plate; three sides of the fixed base at two ends of each first sliding rail are respectively installed with the dustproof plate; the first mounting plate is connected with the first sliding rail, the linkage floating mechanism and the limiting block; the first cylinder is installed on the reference base plate, and the cylinder pressing arm thereof is connected with the locking pressing block; the second cylinder is installed on the cylinder fixing base, and the cylinder body thereof is connected with the first mounting plate through the cylinder head assembly; the stroke of the second cylinder is determined by the stroke of the first sliding rail, and the stroke of the first sliding rail is determined by the space for loading a piece; the first sliding rail is provided with the buffer assembly for shock absorption and speed reduction at the retracted end thereof, and is respectively provided with the limiting block assembly one and the limiting block assembly two; the buffer assembly, the limiting block assembly one and the limiting block assembly two are all installed on the reference base plate; The linkage floating mechanism comprises a base plate, a second sliding rail, a second mounting plate, a third cylinder, a first cylinder mounting base, a cylinder head assembly, a second cylinder mounting base, a fourth cylinder, a locking pressing block, a third limiting block assembly, a fourth limiting block assembly, a fifth limiting block assembly, a first floating assembly mounting plate, a second floating assembly mounting plate, a floating assembly, a first positioning block assembly, a second positioning block assembly and a synchronization plate; The first positioning block assembly and the second positioning block assembly are connected with the second floating assembly mounting plate, and switches are arranged in the first positioning block assembly and the second positioning block assembly to detect whether a plate piece is present; the floating assembly is installed on the second floating assembly mounting plate and the first floating assembly mounting plate, and springs are arranged in the floating assembly to realize floating function; the base plate is installed on the first mounting plate in the sliding table mechanism; the second sliding rail is installed on the base plate; the second mounting plate is installed on the second sliding rail; the second mounting plate is connected with the fourth limiting block assembly and the fifth limiting block assembly; the first floating assembly mounting plate is installed on the second mounting plate; the third cylinder is installed on the first cylinder mounting base, and the cylinder body thereof is connected with the second mounting plate through the cylinder head assembly; the stroke of the third cylinder is determined by the stroke of the second sliding rail, and the stroke of the second sliding rail is determined by the space for withdrawing a hinge; the synchronization plate is used to connect two second floating assembly mounting plates to realize the synchronous advancing and retreating function of upper and lower hinges; the fourth cylinder is installed on the second cylinder mounting base, and the cylinder pressing arm thereof is connected with the locking pressing block; the second cylinder mounting base and the third limiting block assembly are installed on the first mounting plate in the sliding table mechanism.

2. The precision positioning loading device for small-sized panel of automobile body according to claim 1, characterized in that: The manual clamping mechanism comprises a fixed support base, a manual cylinder and a clamping block assembly; the fixed support base is connected with the second floating assembly mounting plate of the linkage floating mechanism; the clamping block assembly is installed on the pressing arm of the manual cylinder; and the manual cylinder is installed on the fixed support base.

3. The precision positioning loading device for small-sized panel of automobile body according to claim 1, characterized in that: The floating assembly is arranged between the first floating assembly mounting plate and the second floating assembly mounting plate, and the synchronization plate is connected between the two second floating assembly mounting plates.

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