Welded part positioning tool

Abstract

The utility model discloses a welding piece positioning tool, which relates to the technical field of welding tools and comprises a base plate and a second positioning clamp, the second positioning clamp is fixed on one side of the top of the base plate through a bolt, and the second positioning clamp comprises a base, a telescopic cylinder, a rotary pressing plate, a pressing block, a supporting column and a bottom support. According to the welding part positioning tool, through arrangement of the second positioning clamp, a welding workpiece is assembled on the base plate, the main body part of a pipe fitting is supported in the bottom supports on the two sides of the top of the supporting column, and the lug plate parts, extending outwards, at the corners of the pipe fitting are arranged on the inner sides of the fixing pressing arms; the placement position of a welding workpiece is limited through the design of a bottom support, the accuracy of the subsequent clamping positions of a first positioning clamp and a second positioning clamp is guaranteed, a rotary pressing plate drives an output end pressing block to rotate and press downwards under the control of a telescopic air cylinder, and the pressing block is tightly attached to the top of a pipe fitting; and the welding workpiece is prevented from shaking and shifting in the subsequent mechanical arm welding procedure, and the welding quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a welding piece positioning tooling. Background Art

[0002] A fixture is a device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position for construction or testing. Fixtures are particularly widely used in the automotive manufacturing industry. Fixtures are used to clamp workpieces to improve efficiency and processing accuracy. A welding fixture is a process equipment that can accurately position and reliably clamp the workpiece to facilitate assembly and welding of the workpiece and ensure the structural accuracy requirements of the workpiece.

[0003] Since the shapes and sizes of the parts to be welded vary, tooling and fixtures that are adapted to the product structure are actively promoted and used in modern welding production. However, the existing special-shaped welding fixtures have technical problems such as inconvenient adjustment and low fit with the product, which may have an adverse effect on the subsequent welding process.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a welding part positioning tool is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a welding piece positioning tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding part positioning tool, comprising a base plate and a second positioning fixture, the second positioning fixture is fixed to one side of the top of the base plate by bolts, the second positioning fixture comprises a base, a telescopic cylinder, a rotating pressure plate, a pressure block, a pillar and a bottom bracket, a telescopic cylinder is fixed to the left side of the base, and the output end of the telescopic cylinder is rotatably connected to the rotating pressure plate, the rotation center of the rotating pressure plate is rotatably connected to the base through a pin shaft, and the end of the rotating pressure plate is connected to the pressure block, a pillar is arranged on the right side of the base, and the root of the pillar is fixed to the base plate by bolts, and bottom brackets are fixed on both sides of the top of the pillar.

[0007] Furthermore, a welding workpiece is supported on the top of the base plate, and the main body of the welding workpiece is composed of a pipe fitting, the bottom of the pipe fitting is clamped inside the bottom brackets on both sides, and the top of the pipe fitting is tightly fitted with the pressing block, and an ear plate is integrally fixed at the corner of the pipe fitting.

[0008] Furthermore, a first positioning fixture is fixed to the other side of the top of the base plate by bolts, and the first positioning fixture includes a column, a connecting block and a limit pin. The top of the column is fixed with a connecting block, and a limit pin extends from the front end of the bottom of the connecting block.

[0009] Furthermore, the first positioning fixture also includes guide pillars and a handle. Guide pillars are fixed on both sides of the front side of the connecting block, and a handle is rotatably installed on the top of the connecting block.

[0010] Furthermore, the first positioning fixture also includes a crank 1 and a push plate, the middle part of the handle is rotatably connected to the crank 1, and the end of the crank 1 away from the handle is rotatably connected to the push plate, and the push plate is slidably matched with the guide column.

[0011] Furthermore, the first positioning fixture also includes a mounting plate and a second crank. The mounting plate is fixed to the top of the side of the push plate, and the second crank is rotatably mounted on the bottom of the mounting plate.

[0012] Furthermore, the first positioning fixture also includes an adjustable cylinder and a movable pressure arm. The adjustable cylinder is fixed to the back of the mounting plate, and the output end of the adjustable cylinder is rotatably connected to the movable pressure arm of an L-shaped structure, and the middle part of the movable pressure arm is rotatably connected to the second crank.

[0013] Furthermore, the first positioning fixture also includes a fixed pressure arm, the side of the movable pressure arm is matched with a fixed pressure arm, and the fixed pressure arm is fixed to the base plate by bolts, and the movable pressure arm cooperates with the fixed pressure arm to achieve clamping and fixing of the front and back ends of the ear plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model sets a first positioning fixture, pushes the handle forward, the root of the handle is rotatably connected to the connecting block, and the middle part of the handle pushes the guide column located at the front end of the connecting block to slide through the crank connected by rotation, so that the adjustable cylinder fixed by the mounting plate on one side of the push plate moves forward to the preset position, after which the movable pressure arm at the output end of the adjustable cylinder realizes the flipping and downward pressing of the movable pressure arm under the rotation cooperation with the crank 2 at the bottom of the mounting plate, and cooperates with the fixed pressure arm to realize the front and rear clamping of the ear plate part of the welding workpiece. The first positioning fixture of the present application is specially designed according to the ear plate part of the special-shaped welding workpiece, and the front and rear clamping method is used to ensure the stable clamping, and the special-shaped welding fixture is easy to adjust through the control of the handle.

[0016] 2. The utility model assembles the welding workpiece on the base plate through the setting of the second positioning fixture, wherein the main part of the pipe is supported by the bottom brackets on both sides of the top of the pillar, and the ear plate part extending outward at the corner of the pipe is placed on the inner side of the fixed pressure arm. The design of the bottom bracket limits the placement position of the welding workpiece to ensure the accuracy of the subsequent clamping position of the first positioning fixture and the second positioning fixture. Under the control of the telescopic cylinder, the rotating pressure plate drives the output end pressure block to rotate and press down, so that the pressure block is tightly fitted with the top of the pipe, preventing the welding workpiece from shaking and deviating in the subsequent robotic arm welding process, thereby ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the external structure of part of the utility model;

[0019] Figure 3 This is a schematic diagram of the front view structure of the first positioning fixture of the utility model;

[0020] Figure 4 This is a front view structural diagram of the second positioning fixture of the utility model.

[0021] In the figure: 1. base plate; 2. welding workpiece; 3. pipe fitting; 4. ear plate; 5. first positioning fixture; 501. column; 502. connecting block; 503. limit pin; 504. guide column; 505. handle; 506. crank one; 507. push plate; 508. mounting plate; 509. crank two; 510. adjustable cylinder; 511. movable pressure arm; 512. fixed pressure arm; 6. second positioning fixture; 601. base; 602. telescopic cylinder; 603. rotating pressure plate; 604. pressure block; 605. pillar; 606. bottom bracket. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figures 1 to 4As shown, a welding part positioning fixture includes a base plate 1 and a second positioning fixture 6, a welding workpiece 2 is supported on the top of the base plate 1, and the main body of the welding workpiece 2 is composed of a pipe fitting 3, the bottom of the pipe fitting 3 is clamped inside the bottom brackets 606 on both sides, and the top of the pipe fitting 3 is tightly fitted with a pressing block 604, and an ear plate 4 is integrally fixed at the corner of the pipe fitting 3, and a second positioning fixture 6 is fixed to one side of the top of the base plate 1 by bolts, and the second positioning fixture 6 includes a base 601, a telescopic cylinder 602, a rotating pressing plate 603, a pressing block 604, a pillar 605 and a bottom bracket 606, a telescopic cylinder 602 is fixed on the left side of the base 601, and the output end of the telescopic cylinder 602 is rotatably connected to the rotating pressing plate 603, the rotation center of the rotating pressing plate 603 is rotatably connected to the base 601 through a pin, and the end of the rotating pressing plate 603 is connected to the pressing block 604 , under the control of the telescopic cylinder 602, the rotating pressing plate 603 drives the output end pressing block 604 to rotate and press down, so that the pressing block 604 is tightly fitted with the top of the pipe fitting 3, preventing the welding workpiece 2 from shaking and deviating in the subsequent robot arm welding process, and ensuring the welding quality. A pillar 605 is arranged on the right side of the base 601, and the root of the pillar 605 is fixed to the base plate 1 by bolts, and bottom brackets 606 are fixed on both sides of the top of the pillar 605. The welding workpiece 2 is assembled on the base plate 1, wherein the main part of the pipe fitting 3 is supported by the bottom brackets 606 on both sides of the top of the pillar 605, and the ear plate 4 extending outward at the corner of the pipe fitting 3 is placed on the inner side of the fixed pressing arm 512. The design of the bottom bracket 606 limits the placement position of the welding workpiece 2, ensuring the accuracy of the clamping position of the subsequent first positioning fixture 5 and the second positioning fixture 6;

[0024] like Figures 1 to 3As shown, a first positioning fixture 5 is fixed to the other side of the top of the base plate 1 by bolts, and the first positioning fixture 5 includes a column 501, a connecting block 502 and a limit pin 503. The connecting block 502 is fixed to the top of the column 501, and the limit pin 503 extends from the front end of the bottom of the connecting block 502. The first positioning fixture 5 also includes a guide column 504 and a handle 505. The guide columns 504 are fixed on both sides of the front of the connecting block 502, and the handle 505 is rotatably installed on the top of the connecting block 502. The first positioning fixture 5 also includes a crank 506 and a push plate 507, the middle part of the handle 505 is rotatably connected with a crank 1 506, and the end of the crank 1 506 away from the handle 505 is rotatably connected with the push plate 507, and the push plate 507 is slidably matched with the guide column 504, the first positioning fixture 5 also includes a mounting plate 508 and a crank 2 509, the top of the side of the push plate 507 is fixed with a mounting plate 508, and the bottom of the mounting plate 508 is rotatably mounted with the crank 2 509, the first positioning fixture 5 also includes an adjustable cylinder 510 and a movable pressing arm 511, and the back of the mounting plate 508 is fixed with an adjustable cylinder 5 10, and the output end of the adjustable cylinder 510 is rotatably connected with an L-shaped movable pressure arm 511, and the middle of the movable pressure arm 511 is rotatably connected with the crank 2 509, the first positioning fixture 5 also includes a fixed pressure arm 512, the side of the movable pressure arm 511 is matched with a fixed pressure arm 512, and the fixed pressure arm 512 is fixed to the base plate 1 by bolts, and the movable pressure arm 511 cooperates with the fixed pressure arm 512 to achieve clamping and fixing of the front and back ends of the ear plate 4, push the handle 505 forward, and the root of the handle 505 is connected to the connecting block 502 The crank of the rotation connection pushes the guide column 504 at the front end of the connecting block 502 of the push plate 507 to slide, so that the adjustable cylinder 510 fixed by the mounting plate 508 on one side of the push plate 507 moves forward to the preset position. After that, the movable pressing arm 511 at the output end of the adjustable cylinder 510 cooperates with the rotation of the crank 509 at the bottom of the mounting plate 508 to realize the flipping and downward pressing of the movable pressing arm 511, and cooperates with the fixed pressing arm 512 to realize the front and rear clamping of the ear plate 4 of the welding workpiece 2.

[0025] Working principle: When using this welding part positioning tool, the welding workpiece 2 is assembled on the base plate 1, wherein the main part of the pipe 3 is supported by the bottom bracket 606 on both sides of the top of the pillar 605, and the ear plate 4 extending outward at the corner of the pipe 3 is placed on the inner side of the fixed pressure arm 512. The design of the bottom bracket 606 limits the placement position of the welding workpiece 2 to ensure the accuracy of the subsequent clamping position of the first positioning fixture 5 and the second positioning fixture 6. Under the control of the telescopic cylinder 602, the rotating pressure plate 603 drives the output end pressure block 604 to rotate and press down, so that the pressure block 604 is tightly fitted with the top of the pipe 3 to prevent the welding workpiece 2 from shaking and deviating in the subsequent robotic arm welding process, thereby ensuring the welding quality. Push the handle 505 forward, and the root of the handle 505 It is rotatably connected to the connecting block 502, and the middle part of the handle 505 pushes the guide column 504 located at the front end of the connecting block 502 to slide by the crank connected by rotation, so that one side of the push plate 507 is fixed by the adjustable cylinder 510 on the mounting plate 508 and moves forward to the preset position. Thereafter, the movable pressure arm 511 at the output end of the adjustable cylinder 510 is in cooperation with the rotation of the crank 2 509 at the bottom of the mounting plate 508 to realize the flipping and downward pressing of the movable pressure arm 511, and cooperates with the fixed pressure arm 512 to realize the front and rear clamping of the ear plate 4 of the welding workpiece 2. The first positioning fixture 5 of the present application is specially designed according to the ear plate 4 of the special-shaped welding workpiece 2, and ensures stable clamping by the front and rear clamping method. The special-shaped welding fixture is easy to adjust through the control of the handle 505.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A welding part positioning tool, characterized in that: The invention comprises a base plate (1) and a second positioning fixture (6), wherein the second positioning fixture (6) is fixed to one side of the top of the base plate (1) by bolts, and the second positioning fixture (6) comprises a base (601), a telescopic cylinder (602), a rotating pressure plate (603), a pressure block (604), a pillar (605) and a bottom bracket (606). The telescopic cylinder (602) is fixed to the left side of the base (601), and the output end of the telescopic cylinder (602) is rotatably connected to the rotating pressure plate (603), the rotation center of the rotating pressure plate (603) is rotatably connected to the base (601) by a pin shaft, and the end of the rotating pressure plate (603) is connected to the pressure block (604), the right side of the base (601) is provided with a pillar (605), and the root of the pillar (605) is fixed to the base plate (1) by bolts, and bottom brackets (606) are fixed to both sides of the top of the pillar (605).

2. A welding part positioning tool according to claim 1, characterized in that: The top of the base plate (1) supports a welding workpiece (2), and the main body of the welding workpiece (2) is composed of a pipe fitting (3). The bottom of the pipe fitting (3) is clamped inside the bottom brackets (606) on both sides, and the top of the pipe fitting (3) is tightly fitted with the pressing block (604). Ear plates (4) are integrally fixed at the corners of the pipe fitting (3).

3. A welding part positioning tool according to claim 1, characterized in that: A first positioning fixture (5) is fixed to the other side of the top of the base plate (1) by means of bolts. The first positioning fixture (5) comprises a column (501), a connecting block (502) and a limiting pin (503). The connecting block (502) is fixed to the top of the column (501), and the limiting pin (503) extends from the front end of the bottom of the connecting block (502).

4. A welding part positioning tool according to claim 3, characterized in that: The first positioning fixture (5) further comprises guide pillars (504) and a handle (505); guide pillars (504) are fixed on both sides of the front of the connection block (502), and a handle (505) is rotatably mounted on the top of the connection block (502).

5. A welding part positioning tool according to claim 4, characterized in that: The first positioning fixture (5) also includes a crank 1 (506) and a push plate (507), the middle part of the handle (505) is rotatably connected to the crank 1 (506), and the end of the crank 1 (506) away from the handle (505) is rotatably connected to the push plate (507), and the push plate (507) is slidably matched with the guide column (504).

6. A welding part positioning tool according to claim 5, characterized in that: The first positioning fixture (5) further comprises a mounting plate (508) and a second crank (509); the mounting plate (508) is fixed to the top of the side of the push plate (507), and the second crank (509) is rotatably mounted on the bottom of the mounting plate (508).

7. A welding part positioning tool according to claim 6, characterized in that: The first positioning fixture (5) also includes an adjustable cylinder (510) and a movable pressure arm (511); the adjustable cylinder (510) is fixed on the back of the mounting plate (508); the output end of the adjustable cylinder (510) is rotatably connected to the movable pressure arm (511) of an L-shaped structure; and the middle part of the movable pressure arm (511) is rotatably connected to the second crank (509).

8. A welding part positioning tool according to claim 7, characterized in that: The first positioning fixture (5) further comprises a fixed pressure arm (512), the side of the movable pressure arm (511) is matched with the fixed pressure arm (512), and the fixed pressure arm (512) is fixed to the base plate (1) by means of bolts, and the movable pressure arm (511) cooperates with the fixed pressure arm (512) to achieve clamping and fixing of the front and rear ends of the ear plate (4).

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