CN211162597U

CN211162597U - High-precision automobile part welding fixture

Info

Publication number: CN211162597U
Application number: CN201921555614.0U
Authority: CN
Inventors: 陈学风
Original assignee: Rixuan Automobile Technology Changzhou Co ltd
Current assignee: Rixuan Automobile Technology Changzhou Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-08-04
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a high accuracy automobile spare and accessory part welding jig, including positioning fixture, support, cylinder and pressure arm, positioning fixture's last surface mounting is provided with a plurality of supports, the equal vertical riser of having installed in side of support, and the upper segment fixed link of support has the chain block, it is provided with the stopper to install locating pin upper end middle part on the side module of chain block, the top nut active link of chain block has the pressure arm, and the fixed compact heap that is equipped with of bottom anterior segment of pressure arm, the pressure has the welding part in the compact heap, the tail end active link of pressure arm has the top of cylinder, and the middle section of the middle section screw thread fixed link cylinder of chain block, and the bottom side of cylinder is provided with the control line moreover, positioning fixture bottom screw thread fixed mounting has support foot stool and pulley. The high-precision welding fixture is high in precision, firm and non-swing in welding use, convenient to adjust and replace main positioning elements and capable of enabling the fixture to have a flexible mixed function.

Description

High-precision automobile part welding fixture

Technical Field

The utility model relates to a welding jig technical field specifically is a high accuracy auto parts welding jig.

Background

The high-precision welding fixture is used for welding positioning equipment, various welding fixtures are correctly selected, the assembly and welding time can be shortened, the labor intensity of workers is reduced, the labor productivity is improved, the assembly precision and the welding quality of products are ensured, the potential of the equipment can be fully exerted, the application range of the equipment is expanded, and the comprehensive mechanization and automation of the assembly and welding operation can be favorably realized to protect the components.

Modern welding jig has a problem more, and the hole is not hard up too big easily, and welding jig considers factors such as durable, and the mobility is not good usually for the material of selecting for use, and this just makes when changing welding jig, takes trouble hard, automatic welding, and the precision remains to be improved, for this reason, we provide a high accuracy automobile parts welding jig.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy automobile parts welding jig to solve the modern high accuracy welding jig precision that provides among the above-mentioned background art not good, with trading the not strong problem of mobility.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision automobile part welding fixture comprises a positioning fixture, supports, an air cylinder and a pressure arm, wherein a plurality of supports are arranged on the upper surface of the positioning fixture, vertical plates are vertically arranged on the side surfaces of the supports, a connecting block is fixedly connected to the upper section of each support, a limiting block is arranged in the middle of the upper end of a positioning pin and is arranged on a side module of the connecting block, a pressure arm is movably connected to a top nut of the connecting block, a pressing block is fixedly arranged on the front section of the bottom of the pressure arm, a welding part is pressed in the pressing block, the tail end of the pressing arm is movably connected with the top of the air cylinder, the middle section of the connecting block is fixedly connected with the middle section of the air cylinder through threads, a control line is arranged on the side surface of the bottom of the air cylinder, a supporting foot seat and a pulley are fixedly arranged on the bottom of the positioning fixture through threads, and the bottom of the positioning base is provided with a sliding device, one end of the sliding device is provided with a welding mechanical arm, the welding top of the mechanical arm of the welding mechanical arm is connected with a welding device, and the side line of the welding device is connected with a welding control system.

Preferably, the pressing block is fixedly arranged at the front section of the bottom of the pressing arm, and the upper contact surface and the lower contact surface of the pressing block are made of black glue anti-skidding materials and are in a tooth shape.

Preferably, the side face module of the connecting block is provided with a positioning pin, and the middle part of the upper end of the connecting block is provided with a limiting block.

Preferably, the bottom of the positioning fixture is fixedly provided with a supporting foot seat and a pulley through threads, and the upper surface of the positioning base is fixedly provided with the positioning fixture through threads.

Preferably, the bottom of the positioning base is provided with a sliding device, and one end of the sliding device is provided with a welding mechanical arm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this high accuracy welding jig precision is high, and it is strong to change the mobility, and the welding is used firmly and is not shaken motionlessly and more has the security. The high-precision welding fixture has the advantages that the support, the vertical plate, the air cylinder and the vertical plate beside the support are arranged at each connecting position to reinforce the support base, so that a welding machine cannot shake during welding, and meanwhile, under the condition that the assembly of a positioning mechanism and the establishment of a positioning groove are not influenced, a frame structure is adopted as far as possible, so that materials can be saved, the dead weight of the fixture is reduced, and the use frequency of the welding fixture is extremely high, so that a positioning element has enough rigidity and hardness to ensure the precision in the replacement and trimming period. The profile requires surface quenching, the positioning pin is wear-resistant and has certain rigidity, the requirement of the pressing part is consistent with the requirement of the positioning part, and a wear-resistant anti-skid device is arranged on the contact surface of the pressing block at the front section of the bottom of the pressing arm and the part, so that the friction of the part and the impact pressure of the cylinder on the part are reduced;

2. this high accuracy welding jig adopts the contraction type locating pin, can press from both sides tightly fast and fix a position accurate its simple structure, and the angle from free state to the clamping state can be adjustment freely. The method is mainly used for production lines with smaller batch production outline and lower production outline, and is often used in trial production (sample car) of the early vehicle type. In order to facilitate adjustment and replacement of main positioning elements and enable the fixture to have a flexible mixed-type function, the positioning mechanism is designed to be combined and adjustable, a supporting foot seat and a pulley are fixedly installed at the bottom of the positioning fixture through threads, the positioning fixture is detached from a positioning base, the roller is convenient to move, the supporting foot seat can lift the fixed positioning fixture, the service life of the roller is prolonged, and the positioning fixture is fixed and more stable;

3. the sliding device is installed to the bottom of location base, is in order to improve whole high accuracy welding jig's precision, and quick binding clasp can several series connection or parallelly connected use together as required, reaches the secondary and presss from both sides tight or the tight purpose of multiple spot clamp, and sliding device's one end is provided with the welding arm, and automatic weld equipment has and presss from both sides tightly fast with opening speed, and it is big to compress tightly strength, fixes a position accurate advantage. The existing welding line generally adopts an automatic welding mode, is used for mass production with high production outline, and can realize complex positioning and clamping mechanisms and different functions by matching different types of pneumatic elements.

Drawings

FIG. 1 is a schematic view of the high-precision welding jig of the present invention;

FIG. 2 is a schematic structural view of a clamping member of the high-precision welding jig of the present invention;

FIG. 3 is a schematic diagram of the structure of the high-precision welding jig of the present invention;

fig. 4 is the utility model discloses high accuracy welding jig local structure schematic diagram.

In the figure: 1. positioning a clamp; 2. a support; 3. a vertical plate; 4. a part; 5. a cylinder; 6. connecting blocks; 7. a compression block; 8. pressing the arm; 9. a limiting block; 10. positioning pins; 11. a supporting foot seat; 12. a pulley; 13. a control line; 14. a clamp controller; 15. positioning a base; 16. a welding device; 17. a welding control system; 18. and (6) welding the mechanical arm.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-precision automobile part welding fixture comprises a positioning fixture 1, supports 2, a cylinder 5 and pressure arms 8, wherein a plurality of supports 2 are arranged on the upper surface of the positioning fixture 1, the purpose of secondary clamping or multi-point clamping is achieved, vertical plates 3 are vertically arranged on the side surfaces of the supports 2 and used for reinforcing bases of the supports 2 to enable welding machines to be fixed during welding, connecting blocks 6 are fixedly connected to the upper sections of the supports 2, positioning pins 10 are arranged on side modules of the connecting blocks 6, limiting blocks 9 are arranged in the middle of the upper ends of the connecting blocks and can be used for rapidly clamping and accurately positioning, the high-precision automobile part welding fixture is simple in structure, the angle from a free state to a clamping state can be freely adjusted, nuts at the top ends of the connecting blocks 6 are movably connected with the pressure arms 8, pressure blocks 7 are fixedly arranged on the front sections of the bottoms of the pressure arms 8, welding parts 4 are pressed in the pressure blocks 7, the friction of a part 4 and the impact pressure of the cylinder 5 on the part 4 are reduced, the tail end of a pressure arm 8 is movably connected with the top of the cylinder 5, the middle section of a connecting block 6 is fixedly connected with the middle section of the cylinder 5 through threads, a control line 13 is arranged on the side face of the bottom of the cylinder 5, the control line 13 is connected with a welding control system 17, a supporting foot seat 11 and a pulley 12 are fixedly arranged at the bottom of a positioning fixture 1 through threads, a roller wheel is convenient to move, the supporting foot seat can be lifted up to fix the positioning fixture, the service life of the roller wheel is prolonged, the positioning fixture is more stable through fixing the positioning fixture, the positioning fixture 1 is fixedly arranged on the upper surface of a positioning base 15 through threads, main positioning elements are convenient to adjust and replace, the fixture has a flexible mixed-type function, the bottom line of the positioning base 15 is connected with a fixture controller, the welding top of the mechanical arm of the welding mechanical arm 18 is connected with a welding device 16, a side line of the welding device 16 is connected with a welding control system 17, an automatic welding mode is generally adopted by a welding line at present, the welding mechanical arm is used for producing high-volume mass production with a steel collar, complex positioning and clamping mechanisms and different functions can be realized by mutually matching different types of pneumatic elements, and the automatic welding equipment has the advantages of high clamping and opening speed, large compression force and accurate positioning.

The working principle is as follows: for the high-precision welding fixture, firstly, a plurality of supports 2 are adjusted and fixed according to a part 4 model, a vertical plate 3 is installed and fixed, the positioning clamp 1 is moved to a designated position through the pulley 12, then is placed on the positioning base 15, is fixed on the upper surface of the positioning base 15 by a nut, then the control line 13 of the cylinder 5 is inserted into and connected with a welding control system 17, the distance between the positioning clamp 1 and a welding mechanical arm 18 is adjusted through a clamp controller 14, so that the accuracy of a welding point is effectively improved, then the key control system is controlled to weld a part model, secondly, the positioning fixture is controlled to be opened, the part is taken out of the fixture groove, batch production can be realized after debugging is finished, the positioning fixture can be replaced after production is finished, the positioning fixture is detached from the positioning base and placed at an idle position, therefore, other positioning fixtures are replaced, and the using process of the whole high-precision welding fixture is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high accuracy automobile parts welding jig, includes positioning fixture (1), support (2), cylinder (5), pressure arm (8) and location base (15) its characterized in that: the upper surface of the positioning fixture (1) is provided with a plurality of supports (2), vertical plates (3) are vertically arranged on the side surfaces of the supports (2), the upper sections of the supports (2) are fixedly connected with connecting blocks (6), the middle parts of the upper ends of positioning pins (10) are arranged on side modules of the connecting blocks (6) and are provided with limit blocks (9), top nuts of the connecting blocks (6) are movably connected with pressure arms (8), the front sections of the bottoms of the pressure arms (8) are fixedly provided with pressing blocks (7), welding parts (4) are pressed in the pressing blocks (7), the tail ends of the pressure arms (8) are movably connected with the tops of cylinders (5), the middle sections of the connecting blocks (6) are fixedly connected with the middle sections of the cylinders (5) through threads, the side surfaces of the bottoms of the cylinders (5) are provided with control lines (13), and supporting foot seats (11) and pulleys (12) are fixedly arranged on the bottom threads, the upper surface screw thread fixed mounting of location base (15) has positioning fixture (1), the bottom line of location base (15) is connected with anchor clamps controller (14), and the bottom of location base (15) has installed slider (19), slider's one end is provided with welding arm (18), the arm welding top of welding arm (18) is connected with welding set (16), the next door line of welding set (16) is connected with welding control system (17).

2. The high-precision automobile spare and accessory part welding fixture as claimed in claim 1, wherein: the upper and lower contact surfaces of a pressing block (7) and the pressing block (7) are fixedly arranged at the front section of the bottom of the pressing arm (8) and are made of black glue anti-skidding materials in a tooth shape.

3. The high-precision automobile spare and accessory part welding fixture as claimed in claim 1, wherein: and a positioning pin (10) is arranged on the side face module of the connecting block (6), and a limiting block (9) is arranged in the middle of the upper end of the connecting block (6).

4. The high-precision automobile spare and accessory part welding fixture as claimed in claim 1, wherein: the bottom of the positioning base (15) is provided with a sliding device (19), and one end of the sliding device is provided with a welding mechanical arm (18).