CN206169538U - Backrest welding jig assembly - Google Patents

Abstract

The seat back welding fixture assembly includes a working platform on which round pipes, steel wires and sheet metal parts to be welded are arranged. Rotary clamping mechanism, double guide column head pillow cover clamping mechanism, lateral clamping positioning mechanism and magnetic sheet positioning clamping mechanism. Through the above structure, the utility model provides a fixture assembly with accurate positioning, convenient operation, precise clamping, shortened processing cycle and high automation performance.

Description

Seat back welding fixture assembly

technical field

The utility model relates to a welding fixture assembly, in particular to a seat back welding fixture assembly.

Background technique

The car seat backrest frame is a pre-embedded part installed in the seat back of a commercial vehicle, and is a welded frame to strengthen the rigidity of the backrest. At present, the welding fixture of the car seat back frame has low precision. First, some components are welded and then these components are placed on the fixture to realize the skeleton assembly. Since the tailor welding of various welding components has been clamped many times, the deformation of the workpiece is large, there are many waste products, and the size cannot be guaranteed. Moreover, the pressing mechanism is a manual pressing block. Neither the upper pressing material nor the lower positioning groove is controlled by the guide surface, the positioning state is unstable, there is no lateral limit device, the fit is not good, and the rework and repair increase the manufacturing cost, so the processing time is high. Manufacturing costs also rise accordingly. Moreover, the production cycle is long, the labor intensity is high, and the automation is low.

Contents of the invention

In order to solve the above technical problems, the utility model provides a seat back welding fixture assembly. According to the processing requirements of different positions on the working platform, a composite double guide rail vertical clamping mechanism, a lateral rotation clamping mechanism, a double guide The clamping mechanism of the column head pillowcase, the lateral clamping positioning mechanism and the magnetic sheet positioning clamping mechanism perform all-round automatic clamping and fixing of the workpiece to be welded, which solves the problems of low processing precision and high labor intensity in the prior art And the technical problem of high processing cost.

In order to achieve the above object, the technical solution adopted by the utility model is: the seat back welding fixture assembly includes a work platform, and the round pipes, steel wires and sheet metal parts to be welded are arranged on the work platform, and it is characterized in that: The platform is equipped with a composite double guide rail vertical clamping mechanism, a lateral rotation clamping mechanism, a double guide column headrest cover clamping mechanism, a lateral clamping positioning mechanism and a magnetic sheet positioning clamping mechanism.

The composite double guide rail vertical clamping mechanism has a guide rail cylinder and a rotary cylinder 1, the guide rail cylinder is installed on the slide rail bracket assembly, pushes the connecting bracket 1 to move along the direction of the slide rail on the slide rail bracket assembly, and the connecting bracket 1 is connected with Fixed plate, the lower positioning surface of the fixed plate limits the position of the circular tube; the fixed plate is provided with a rotating pressure angle driven by the rotary cylinder 1, and the rotating pressure angle is used for pressing and positioning the sheet metal parts to be welded.

The lateral rotation clamping mechanism includes a rotary cylinder II installed on the working platform through the cylinder bracket I, a rotary pressing arm is connected to the rotating part above the rotary cylinder II, and the rotary pressing arm is parallel to the working platform and can be moved along Rotate horizontally.

The clamping mechanism of the double guide post head pillow cover includes a double guide post cylinder I that drives the movement of the double guide post head rod positioning assembly, one side of the guide sleeve positioning rod positioning plate is connected to the double guide post head rod positioning assembly, and the other side passes through The positioning pin is connected with a guide sleeve positioning rod.

The lateral clamping and positioning mechanism is arranged on the outer surface of the round pipe, including the lateral steel pipe positioning bracket driven by the double guide column cylinder II and the semi-closed positioning bracket used in conjunction with the lateral steel pipe positioning bracket.

The magnetic sheet positioning and clamping mechanism includes one side connected to the double guide post cylinder III, the other side is provided with a positioning pin II and a positioning plate of the electromagnetic sheet, and the positioning bracket of the sheet metal part cooperates with the positioning plate for Clamp sheet metal parts.

The composite double guide rail vertical clamping mechanism is installed on the outer side of the sheet metal part and the round tube, and is used for clamping the sheet metal part and the round tube where the sheet metal part is located above the round tube; The clamping and positioning mechanism is installed on the outside of the round tube for clamping and fixing the outer side of the round tube; the magnetic sheet positioning and clamping mechanism is set on the outside of the round tube and the sheet metal parts, and is used to set the sheet metal parts on the round tube The sheet metal parts at the outside are clamped with the round tube.

The beneficial effects created by the utility model are: the utility model provides a seat back welding fixture assembly, which is equipped with a composite double guide rail vertical clamping mechanism and a lateral rotation clamping mechanism according to the processing needs of different positions on the working platform , Double guide column head pillow cover clamping mechanism, lateral clamping positioning mechanism and magnetic sheet positioning clamping mechanism, all-round automatic clamping and fixing of the workpiece to be welded. Through the above structure, the utility model provides a fixture assembly with accurate positioning, convenient operation, precise clamping, shortened processing cycle and high automation performance.

Description of drawings

Fig. 1: is the structural representation of the utility model.

Figure 2: It is a structural schematic diagram of the vertical clamping mechanism of the composite double guide rail in Figure 1.

Figure 3: It is a diagram in the direction of A in Figure 2.

Fig. 4: It is a structural schematic diagram of the fixed plate in Fig. 2 .

Fig. 5: It is a structural schematic diagram of the lateral rotation clamping mechanism in Fig. 1 .

Fig. 6: It is a structural schematic diagram of the clamping mechanism of the double guide post head pillow case in Fig. 1 .

Fig. 7: It is a structural schematic diagram of the lateral clamping positioning mechanism in Fig. 1 .

Fig. 8: It is a structural schematic diagram of the positioning and clamping mechanism of the magnetic sheet in Fig. 1 .

Fig. 9: It is the view from direction A of Fig. 8 .

Fig. 10 is a schematic structural diagram of the composite positioning bracket in Fig. 1 .

detailed description

Seat back welding jig assembly as shown in Figure 1, includes working platform 7, is provided with round pipe, steel wire and sheet metal parts to be welded on working platform 7, is characterized in that: on working platform 7, is provided with composite double Guide rail vertical clamping mechanism 1, lateral rotation clamping mechanism 2, double guide post headrest cover clamping mechanism 4, lateral clamping and positioning mechanism 5 and magnetic sheet positioning and clamping mechanism 6.

The composite double guide rail vertical clamping mechanism 1 shown in Figure 2-4 is used to clamp the ring and the sheet metal parts at the upper part of the circular tube. The composite double guide rail vertical clamping mechanism 1 has a guide rail cylinder 1- 1 and the rotary cylinder I1-2, the guide rail cylinder 1-1 is installed on the slide rail bracket assembly 1-9, pushes the connecting bracket I1-10 to move along the direction of the slide rail on the slide rail bracket assembly 1-9, and connects on the connecting bracket I10 There is a fixed plate 1-3, and the lower positioning surface 1-3-1 of the fixed plate 1-3 limits the position of the circular tube; the fixed plate 1-3 is provided with a rotating pressure angle 1-4 driven by the rotating cylinder I1-2, and the rotation Press angle 1-4 is used to press and position the sheet metal parts to be welded. The working platform is provided with a connecting frame 1-6 and a limit block 1-5 for positioning the position of the circular pipe, and the lower positioning surface 1-3-1 of the fixed plate 1-3 and the limit block 1-5 together define the position of the circular pipe. Position; the rotation pressure angle 1-4 and the lower positioning surface 1-3-1 are set on the same side of the fixed plate 1-3.

The slide rail bracket assembly 1-9 is a left-right symmetrical structure, and its lower part is a bracket, which is installed on the working platform. Two mutually parallel slide rails are arranged symmetrically on both sides of the middle part, which are used to limit the movement direction of the connecting bracket I1-10. The upper connecting plate is used to support and fix the guide rail cylinder 1-1. The bottom of the connecting bracket I1-10 is connected to the two slide rails of the slide rail support assembly 1-9, and the upper part is equipped with a push connection frame 1-11, and the push rod of the guide rail cylinder 1-1 is connected with the push connection frame 1-11. Thereby the connecting bracket I1-10 is promoted to move back and forth on the slide rail of the slide rail bracket assembly 1-9.

The positioning pin I1-3-2 is arranged on the fixed plate 1-3, and the positioning pin I1-3-2 is arranged under the rotating pressure angle 1-4, and is used for positioning the sheet metal parts to be welded together with the rotating pressure angle 1-4 s position. The positioning surface 1-3-1 is arranged on the lowermost end of the fixing plate 1-3, and has an L-shaped cross section, and the circular tube is placed on the lower transverse surface of the positioning surface 1-3-1.

An adjustment pad I1-7 is arranged between the connecting frame 1-6 and the 1-limiting block 5 for adjusting the position and height of the limiting block 1-5 relative to the connecting frame 1-6.

When using it specifically:

First place the sheet metal part on the matching positioning pin I1-3-2, put the round pipe in the positioning groove, start the solenoid valve, the rotary cylinder I1-2 runs, and rotates through the connecting rod of the rotary cylinder I1-2 Drive the rotating pressure angle 1-4, so that the rotating pressure angle 1-4 is transferred from the original A1 position to the A2 position to realize the clamping action. Afterwards, start the guide rail cylinder 1-1 to move along the direction indicated by F1; then place the round tube on the positioning surface 1-3-1 of the fixed plate 1-3, and now the guide rail cylinder 1-1 pushes the fixed plate 1-3 along the Move the guide rails on both sides to drive the sheet metal parts and the round tube to move, and the round tube is attached to the side of the limit block 1-5; then put the sheet metal part in the positioning slot, complete a clamping to ensure that the placement is correct and start Robot welding control program; realize welding; after the welding program control operation is completed, the rotary cylinder I1-2 drives the rotary pressure angle 1-4 to reversely rotate 90°, and turns from the A2 position to the A1 position. At this time, the guide rail cylinder 1-1 drives the device back Go to the set security area and pick up the item.

The lateral rotation clamping mechanism 2 shown in Figure 5 includes a rotary cylinder II2-2 installed on the working platform 7 through a cylinder bracket I2-8, and a rotary pressing arm 2 is connected to the rotating part above the rotary cylinder II2-2 -3, the rotating pressing arm 2-3 is parallel to the working platform and can rotate along the horizontal direction.

The composite positioning bracket 3 is installed on the working platform through the connecting bracket II2-6, and the rotating pressing arm 3 can be pressed on the top of the composite positioning bracket 3 to locate the steel wire and the round pipe.

The rotating pressing arm 2-3 can be driven by the rotating cylinder II2-2 to rotate 90° with the rotating part on the rotating cylinder II2-2 as the center along the direction parallel to the working platform. Thereby, the steel wire and the round pipe can be clamped, fixed and disassembled automatically, the automation of clamping and disassembly is realized, the labor intensity is reduced, and the production and processing efficiency is improved.

The upper surface of the composite positioning bracket 3 is provided with a steel wire positioning groove 3-1-1 and a circular tube positioning groove 3-1-2, and simultaneously positions the relative of the circular tube and the steel wire. The lower surface of the rotary pressing arm 2-3 is equipped with a briquetting block 2-4, the position of the briquetting block 2-4 corresponds to the position of the composite positioning bracket 3, and the steel wire and the circle in the composite positioning bracket 3 are pressed and fixed. Tube. In actual use, the corresponding composite positioning bracket 3 can be produced according to the design parameters, and installed on different positions on the working platform according to the needs, and the steel wire and the round pipe can be clamped and positioned at the same time, thus ensuring clamping and subsequent welding the accuracy. Moreover, during processing, it is only necessary to produce different composite positioning brackets 3 according to needs, which can be used in common with other devices, thereby reducing the processing cost.

Between the rotating pressing arm 2-3 and the pressing block 2-4, between the connecting bracket II2-6 and the composite positioning bracket 3, an adjusting pad II2-5 is arranged. The height and position of the clamping part and the positioning part are finely adjusted by the adjusting pad II2-5, which has strong applicability and high adjustment accuracy.

Double guide post head pillow case clamping mechanism 4 as shown in Figure 6 comprises the double guide post cylinder I4-6 that drives double guide post head rod positioning assembly 4-1 motion, and one side of guide sleeve positioning rod positioning plate 4-2 is connected on double On the guide column head rod positioning assembly 4-1, the other side is connected with a guide sleeve positioning rod 4-5 through a limit pin 4-4. First put the U-shaped round tube in the positioning groove of the limit block 4-3, and then put the two headrest tubes respectively on the guide sleeve positioning rod 4-5 embedded in the fixed plate driven by the double guide pillars, and then start the double headrest tube. Guide post cylinder 14-6 drives the headrest cover to move, and now the headrest cover is on the stop block 4-3 plane, and the positioning pin also leans against the headrest cover edge to complete the location.

The lateral clamping and positioning mechanism 5 shown in Figure 7 is arranged on the outer surface of the circular pipe, including the lateral steel pipe positioning bracket 5-3 driven by the double guide column cylinder II5-2 and the lateral steel pipe positioning bracket 5-3 The semi-closed positioning bracket 5-5 used in conjunction with it.

A double guide post cylinder support 5-1 is installed on the working platform, the double guide post cylinder II5-2 is installed on the side of the double guide post cylinder support 1, and the lateral steel pipe positioning bracket 5-3 is connected to the double guide post cylinder II5-2 On the two connecting rods 5-2-1, the lateral steel pipe positioning bracket 5-3 is provided with a side opening circular tube positioning groove 5-3-1; a semi-closed positioning bracket 5 is installed on the working platform -5, the semi-closed positioning bracket 5-5 cooperates with the circular pipe positioning groove 5-3-1 to locate the position of the circular pipe. The lateral steel pipe positioning bracket 5-3 is a long rod structure arranged parallel to the platform, and a circular pipe positioning groove 5-3-1 closed on three sides and open on the side is respectively arranged at both ends of the long rod structure. The middle position of the structure is connected to the two connecting rods 5-2-1 of the double guide post cylinder II5-2 through the connecting plate 5-3-2, and the lateral steel pipe positioning bracket 5 is realized through the drive of the connecting rod 5-2-1 -3 move back and forth along the opening direction of the circular tube positioning groove 5-3-1.

The semi-closed positioning bracket 5-5 is connected on the working platform by the connecting bracket III5-6, and the upper end of the semi-closed positioning bracket 5-5 is an L-shaped structure, and the opening direction is opposite to the opening direction of the circular tube positioning groove 5-3-1. The semi-closed positioning support 5-5 is installed on the platform where the positioning circular pipe needs to be positioned, and is installed on the outer position of the circular pipe provided with the circular pipe positioning groove 5-3-1, and each lateral steel pipe positioning support 5-3 A semi-closed positioning bracket 5-5 is used in conjunction with the outer sides of the two ends respectively. The semi-closed positioning bracket 5-5 and the connecting bracket III5-6 are respectively provided with a plurality of positioning holes, thereby adjusting the position height of the semi-closed positioning bracket 5-5.

In specific use: first place the round pipe to be welded on the L-shaped positioning surface A2 of the semi-closed positioning bracket 5-5, then open the double guide post cylinder II5-2, and push the lateral steel pipe positioning bracket 5 along the F direction -3. At this time, the side of the round pipe is attached to the A2 surface and the A1 surface, and the positioning grooves 5-3-1 of the round pipe on both sides cooperate with the two semi-closed positioning brackets 5-5 to play a limiting role to complete the positioning. Realize welding. After the welding is completed, start the double guide column cylinder II5-2 to drive the lateral steel pipe positioning bracket 5-3 to withdraw, and the position is evacuated, and subsequent processing can be carried out or the round pipe after welding can be taken out.

The magnetic sheet positioning and clamping mechanism 6 shown in Figure 8-9 includes a positioning plate 6 that is connected to the double guide post cylinder III6-2 on one side, and the positioning pin II6-5 and the electromagnetic sheet 6-7 on the other side. -3, the sheet metal positioning bracket 6-1 cooperates with the positioning plate 6-3 to clamp the sheet metal.

A sheet metal positioning bracket 6-1 and a cylinder bracket II6-8 are arranged on the working platform, and the sheet metal positioning bracket 6-1 is connected and set on the working platform through the connecting bracket IV6-6. The double guide column cylinder III6-2 is installed on the The cylinder bracket II6-8 is sideways, and the piston rod of the cylinder can extend in the horizontal direction and move to the position of the sheet metal positioning bracket 6-1; the piston rod of the double guide column cylinder III6-2 is connected to the positioning plate 6-3 The positioning plate 6-3 is provided with a positioning pin II6-5 and an electromagnetic sheet 6-7 on the surface of the positioning plate 6-3 relative to the sheet metal positioning bracket 6-1. The electromagnetic sheet 6-7 is embedded on the side of the positioning plate 6-3, and the exposed surface is flush with the side of the positioning plate 6-3.

A positioning surface 6-1-1 corresponding to the shape of the sheet metal part is provided on the side of the sheet metal part positioning bracket 6-1 opposite to the positioning plate 6-3.

When in use: pass the positioning pin II6-5 through the hole on the sheet metal part, energize the electromagnetic sheet 6-7 to generate suction, and position the sheet metal part to ensure that the workpiece can be stable when the double guide post cylinder III6-2 moves Adsorption on the positioning plate 6-3, to maintain a stable state. Then start the double guide post cylinder III6-2 and move in the direction indicated by B. The side of the sheet metal part coincides with the positioning surface 6-1-1 to realize the positioning and clamping state. At this time, welding is performed. After the welding is completed, the electromagnetic sheet 6-7 is powered off, and the double guide post cylinder III6-2 drives the positioning plate 6-3 to retreat, the positioning pin II6-5 is separated from the workpiece, and the welding process of the straight pipe and the sheet metal part is completed, waiting for the pick-up .

According to the shapes and parameters of different sheet metal parts, use sheet metal part positioning brackets 6-1 with different positioning surfaces 6-1-1, and adjust the position of the positioning pin II6-5 on the positioning plate 6-3. The rest of the parts are common parts, can be reused, have strong general performance, and reduce the initial production cost. Electromagnetic sheet 6-7 and double guide column cylinder III6-2 are used to automatically clamp sheet metal parts and automatically separate welding parts, which reduces labor intensity and improves automation performance. The positioning pin II6-5 and the positioning surface 6-1-1 fix the positioning position of the sheet metal part, and the electromagnetic sheet 6-7 ensures the stability of the system positioning, improves the positioning accuracy, and ensures the processing accuracy. The double guide column cylinder III6-2 and positioning plate 6-3 provide a guide surface for clamping, ensuring that no deviation will occur during operation.

The composite double guide rail vertical clamping mechanism 1 is installed on the outer side of the sheet metal part and the round tube, and is used to clamp the sheet metal part and the round tube where the sheet metal part is located above the round tube; the double guide column headrest cover clamping mechanism 4 and the lateral clamping and positioning mechanism 5 are installed on the outside of the round tube for clamping and fixing the outer side of the round tube; the magnetic sheet positioning and clamping mechanism 6 is arranged on the outside of the round tube and the sheet metal part for fixing The sheet metal parts arranged on the outer side of the round tube are clamped with the round tube.

Claims (2)

1. backrest weld jig assembly, includes workbench（7）, in workbench（7）On be provided with circle to be welded Pipe, steel wire and sheet metal component, it is characterised in that：In workbench（7）On be provided with Composite Double guide rail vertical clamping mechanism（1）, side To rotation clamp system（2）, double guide pillar head rest cover clamp systems（4）, laterally-clamped detent mechanism（5）Clamping machine is positioned with magnetic sheet Structure（6）；

The Composite Double guide rail vertical clamping mechanism（1）With guide rail cylinder（1-1）With rotary cylinder I（1-2）, guide rail cylinder （1-1）Installed in sliding rail rack component（1-9）On, promote connecting bracket I（1-10）Along sliding rail rack component（1-9）On slide rail Direction is moved, connecting bracket I（10）On be connected with fixed plate（1-3）, fixed plate（1-3）Lower locating surface（1-3-1）Limit circle Pipe position；Fixed plate（1-3）On be provided with rotary cylinder I（1-2）The rotation pressure angle of drive（1-4）, rotation pressure angle（1-4） The sheet metal component to be welded for compressing positioning；

Described lateral rotation clamp system（2）Include by air cylinder support I（2-8）Installed in workbench（7）On rotation Rotaring cylinder II（2-2）, rotary cylinder II（2-2）Rotation pressure arm is connected with the rotating part of top（2-3）, rotate pressure arm（2-3） It is parallel with workbench and can be rotated along horizontal direction；

Described double guide pillar head rest cover clamp systems（4）Include the double guide pillar head rod positioning components of drive（4-1）The double of motion lead Post cylinder I（4-6）, guide pin bushing locating rod location-plate（4-2）Side is connected to double guide pillar head rod positioning components（4-1）On, opposite side By spacer pin（4-4）It is connected with guide pin bushing locating rod（4-5）；

Laterally-clamped detent mechanism（5）The lateral surface of pipe is arranged on, double guide pillar cylinder I I are included（5-2）The lateral steel for driving Pipe locating support（5-3）And with lateral steel pipe locating support（5-3）The semiclosed locating support for using cooperatively（5-5）；

Described magnetic sheet positioning and clamping mechanism（6）In include side and be connected to double guide pillar cylinder I II（6-2）On, opposite side sets It is equipped with alignment pin II（6-5）And electromagnetic plate（6-7）Location-plate（6-3）, sheet metal component locating support（6-1）With location-plate（6-3） To cooperation, for clamping sheet metal component.

2. backrest weld jig assembly according to claim 1, it is characterised in that：Described Composite Double guide rail is vertical Clamp system（1）Installed in sheet metal component in the outside of pipe, for clamping sheet metal component and circle of the sheet metal component at pipe top Pipe；Double guide pillar head rest cover clamp systems（4）With laterally-clamped detent mechanism（5）Installed in the outside of pipe, for being fixedly clamped The lateral surface of pipe；Magnetic sheet positioning and clamping mechanism（6）The outside of pipe and sheet metal component is arranged on, for being arranged on circle to sheet metal component The sheet metal component of pipe outside is clamped with pipe.