阅读说明：本技术 一种三角框格板点焊定位夹具 (Positioning fixture for spot welding of triangular frame grid plate ) 是由 李延民 庄天宇 王刚 苏根华 霍征征 于 2019-11-21 设计创作，主要内容包括：本发明提供了一种三角框格板点焊定位夹具,涉及点焊技术领域,以解决现有技术中存在的三角框格板点焊,需要手持板材进行定位和连接,焊接精度差的技术问题,本发明的第一定位架与大面积板抵触,第一板组内的任意板均与其相对的待焊接板相抵,使待焊接板的位置与大面积板的位置限定,使用者将待焊接板和大面积板点焊,本发明结构简单,精确度高。(The invention provides a spot welding positioning fixture for a triangular frame grid plate, relates to the technical field of spot welding, and aims to solve the technical problems that in the prior art, in the spot welding of the triangular frame grid plate, a plate needs to be held by hand for positioning and connecting, and the welding precision is poor.)

1. A spot welding positioning fixture for a triangular frame lattice plate is characterized by comprising a first positioning frame (2-4), a first plate group (3) which is movably arranged on the first positioning frame (2-4) and is in a trapezoidal shape, the first plate group (3) comprises a first transverse angle plate, a first oblique angle plate and a longitudinal angle plate which are arranged on the first positioning frame (2-4) at intervals, the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are all vertical to the bottom surface (2-3) of the first positioning frame (2-4) in any state, a first short angle plate is arranged at one end of the first oblique angle plate close to the longitudinal angle plate in the direction of the first oblique angle plate, the first short angle plate is parallel to the first transverse angle plate, and the first inclined plane plate and the longitudinal angle plate are respectively arranged at two sides of the first positioning frame (2-4).

2. The spot welding positioning fixture for triangular frame lattice boards according to claim 1, further comprising a moving arm (2), a second positioning frame and a second board set movably arranged on the second positioning frame, the first positioning frame (2-4) and the second positioning frame are symmetrically arranged on the moving arm (2), the second plate group comprises a second transverse angle plate and a second oblique angle plate which are respectively and movably arranged on the second positioning frame, the first transverse angle plate and the second transverse angle plate, the second oblique angle plate and the first oblique angle plate are all symmetrically arranged by taking the middle lines of the first positioning frames (2-4) and the second positioning frames as symmetrical axes, and a second short angle plate is arranged at one end of the second oblique angle plate close to the longitudinal angle plate in the direction of the second oblique angle plate, and the second short angle plate is parallel to the second transverse angle plate.

3. A triangular frame panel spot welding positioning fixture according to claim 2, characterized in that, the fixture further comprises a transmission mechanism, the transmission mechanism comprises a main first cylinder (3-1) connected with the first plate group (3) through a first connecting member (3-2) and a main second cylinder connected with the second plate group through a second connecting member, the main first cylinder (3-1) and the main second cylinder operate synchronously, the main first cylinder (3-1) drives the first plate group (3) to move away from the first positioning frame (2-4) or close to the first positioning frame (2-4), and the main second cylinder drives the second plate group to move away from the second positioning frame or close to the second positioning frame.

4. The spot welding positioning fixture for the triangular frame lattice plate according to claim 3, wherein the transmission mechanism further comprises a transverse transmission group and an oblique transmission group, the sum of the number of the transverse transmission groups is equal to that of the inner plates of the first plate group (3) and the second plate group, any transverse transmission group comprises a connecting shaft (3-7) connected with the first connecting piece (3-2) or the second connecting piece and a linear bearing sleeved on the connecting shaft (3-7), the connecting shaft (3-7) is transversely arranged on the positioning frame, the linear bearing is correspondingly connected with the plate in the first plate group (3) or the second plate group respectively, the oblique transmission group is a linear guide rail (3-6), the plate in the first plate group (3) or the second plate group is correspondingly sleeved on the linear guide rail (3-6), the linear guide rails (3-6) are inclined to the connecting shafts (3-7).

5. A triangular frame grid plate spot welding positioning fixture according to claim 3, characterized in that any plate in the first positioning frame (2-4) and the second positioning frame is provided with an electromagnet, and the bottom surfaces of the first positioning frame (2-4) and the second positioning frame are provided with electromagnets.

6. A spot welding positioning jig for triangular lattice plates according to claim 3, characterized by further comprising a positioning cylinder (3-3) provided on the moving arm (2).

7. A spot welding positioning fixture for triangular frame boards according to claim 6, characterized in that the number of the positioning cylinders (3-3) is 6, 1 positioning cylinder (3-3) is arranged above the periphery of each of the first and second oblique angle boards, 1 positioning cylinder (3-3) is arranged above the middle of the center line of each of the first and second positioning frames (2-4) and above the periphery of the first short angle board, and 1 positioning cylinder (3-3) is arranged on each of the first and second transverse angle boards.

8. A triangular frame panel spot welding positioning fixture according to claim 4, characterized in that any plate inside of the first plate group (3) and the second plate group is provided with a corner bracket (3-4), the side of the corner bracket (3-4) opposite to any plate is provided with an inclined plane parallel to the side of the first positioning bracket (2-4), any plate of the first plate group (3) and the second plate group is connected with the linear guide rail (3-6) through the corner bracket (3-4), and the side of the corner bracket (3-4) opposite to the bottom surface of the first positioning bracket (2-4) is connected with the linear bearing.

Technical Field

The invention relates to the technical field of spot welding, in particular to a spot welding positioning fixture for a triangular frame grid plate.

Background

The filter press is a common solid-liquid separation device that utilizes a special filter medium to apply a certain pressure to the object to allow the liquid to dialyze out. The method is applied to chemical production at the beginning of the 18 th century, and is still widely applied to the industries of chemical industry, pharmacy, metallurgy, dye, food, brewing, ceramics, environmental protection and the like until now. The plate and frame filter press is suitable for suspensions with filter residue having a high compressibility or approximately incompressible compressibility. Suitable suspensions generally have a solids concentration of less than 10%, an operating pressure of generally 0.3 to 1.6 MPa, and in particular up to 3 MPa or more. The filtering area can be increased or decreased according to the number of the used plate frames.

The thrust plate is a component of the filter press frame and is connected to the support to seat one end of the filter press on the foundation. The thrust plate is processed by adopting a spot welding process, and the welding process has the advantages of short heating time, high welding speed, simplicity in operation, high mechanization degree and high production efficiency.

Spot welding is a welding method that uses a columnar electrode to form a weld spot between the contact surfaces of two overlapping workpieces. During spot welding, the workpiece is pressed to be in close contact with the spot welding, current is switched on, the contact part of the workpiece is melted under the action of resistance heat, and a welding spot is formed after cooling.

The applicant has found that the prior art has at least the following technical problems:

in the spot welding process, the connection and the positioning of the plates are usually realized in a handheld mode, the consistency of plate welding cannot be guaranteed by the method, and meanwhile, in the resistance spot welding process, the welding accuracy is influenced by the conditions of movement and misalignment between the plates.

Disclosure of Invention

The invention aims to provide a spot welding positioning fixture for a triangular frame grid plate, and the spot welding positioning fixture is used for solving the technical problems that in the prior art, the welding precision is poor when a handheld plate is used for positioning and connecting. The technical effects (reliable operation, simple structure and convenient use) generated by the preferred technical scheme in the technical schemes provided by the invention are explained in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a spot welding positioning fixture for a triangular frame grid plate, which comprises a first positioning frame and a first plate group movably arranged on the first positioning frame and in a trapezoid shape, wherein the first plate group comprises a first transverse angle plate, a first oblique angle plate and a longitudinal angle plate which are arranged on the first positioning frame at intervals, the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are all perpendicular to the bottom surface of the first positioning frame under any state, a first short angle plate is arranged on one end, close to the longitudinal angle plate, of the first oblique angle plate in the direction of the first oblique angle plate, the first short angle plate is parallel to the first transverse angle plate, and the first oblique angle plate and the longitudinal angle plate are symmetrically arranged on two sides of the first positioning frame.

Preferably, the movable corner plate further comprises a movable arm, a second positioning frame and a second plate group movably arranged on the second positioning frame, the first positioning frame and the second positioning frame are symmetrically arranged on the movable arm, the second plate group comprises a second transverse corner plate and a second oblique corner plate which are respectively movably arranged on the second positioning frame, the first transverse corner plate, the second oblique corner plate and the first oblique corner plate are symmetrically arranged by taking the center lines of the first positioning frame and the second positioning frame as symmetry axes, a second short corner plate is arranged at one end, close to the longitudinal corner plate, of the second oblique corner plate in the direction of the second oblique corner plate, and the second short corner plate is parallel to the second transverse corner plate.

Preferably, the positioning device further comprises a transmission mechanism, the transmission mechanism comprises a main first cylinder and a main second cylinder, the main first cylinder is connected with the first plate group through a first connecting piece, the main second cylinder is connected with the second plate group through a second connecting piece, the main first cylinder and the main second cylinder run synchronously, the main cylinder drives the first plate group to move in the direction away from the first positioning frame or to be close to the first positioning frame, and the main second cylinder drives the second plate group to move in the direction away from the second positioning frame or to be close to the second positioning frame.

Preferably, the transmission mechanism further includes a transverse transmission group and an oblique transmission group, the sum of the number of the inner plates of the first plate group and the second plate group is equal to the sum of the number of the inner plates of the second plate group, any transverse transmission group includes a connecting shaft connected with the first connecting member or the second connecting member and a linear bearing sleeved on the connecting shaft, the connecting shaft is transversely disposed on the positioning frame, the linear bearing is correspondingly connected with the plates in the first plate group or the second plate group, the oblique transmission group is a linear guide rail, the plates in the first plate group or the second plate group are correspondingly sleeved on the linear guide rail, and the linear guide rail is inclined to the connecting shaft.

Preferably, any plate in the first positioning frame and the second positioning frame is provided with an electromagnet, and the bottom surfaces of the first positioning frame and the second positioning frame are provided with electromagnets.

Preferably, the device further comprises a positioning cylinder arranged on the moving arm.

Preferably, the number of the positioning cylinders is 6, 1 positioning cylinder is respectively arranged above the peripheries of the first oblique angle plate and the second oblique angle plate, 1 positioning cylinder is respectively arranged above the middle parts of the central lines of the first positioning frame and the second positioning frame and above the periphery of the first short angle plate, and 1 positioning cylinder is respectively arranged on the first transverse angle plate and the second transverse angle plate.

Preferably, the inner sides of any plates of the first plate group and the second plate group are provided with angle brackets, one side of each angle bracket, which is opposite to the any plate, is provided with an inclined plane which is parallel to the side surface of the first positioning bracket, the any plates of the first plate group and the second plate group are connected with the linear slide rail through the angle brackets, and one side of each angle bracket, which is opposite to the bottom surface of the first positioning bracket, is connected with the linear bearing.

Compared with the prior art, the spot welding positioning fixture for the triangular frame grid plate, provided by the invention, has the advantages that the bottom surface of the first positioning frame is abutted against the large-area plate to be welded, the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are respectively abutted against the corresponding plate to be welded, and the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are all perpendicular to the bottom surface of the first positioning frame in any state, so that the plate to be welded and the large-area plate to be welded are kept to be welded perpendicularly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a spot welding positioning fixture for triangular lattice plates;

FIG. 2 is a schematic view of the internal structure of a spot welding positioning fixture for triangular lattice plates;

fig. 3 is a sectional view of the intermediate spot welding jig.

In the figure: 1. a large area panel; 2. a moving arm; 21. mounting a plate; 2-2, a support frame; 2-3, the bottom surface of the first positioning frame; 2-4, a first positioning frame; 3. a first plate group; 3-1, mainly a cylinder; 3-2, a first connecting piece; 3-3, positioning a cylinder; 3-4, corner brackets; 3-5, a sliding rail block; 3-6, linear guide rail; 3-7 connecting the shafts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The invention provides a spot welding positioning fixture for a triangular frame grid plate, which comprises a moving arm (2), a first positioning frame (2-4) and a second positioning frame, wherein the first positioning frame (2-4) and the second positioning frame are symmetrically arranged below the moving arm (2), a first plate group (3) combined into a trapezoid shape is movably arranged on the first positioning frame (2-4), a second plate group is movably arranged on the second positioning frame, and a rib plate and a large-area plate (1) can be positioned by matching the first plate group (3) with the second plate group.

In the process, the first positioning frame (2-4) and the first plate group (3) can be taken out and used independently to realize spot welding of any rib plate and large-area plate (1) step by step, specifically, the first plate group (3) comprises a first transverse angle plate, a first oblique angle plate and a longitudinal angle plate which are arranged on the first positioning frame (2-4) at intervals, the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are all perpendicular to the bottom surface (2-3) of the first positioning frame (2-4) under any state, one end of the first oblique angle plate close to the longitudinal angle plate is provided with a first short angle plate in the direction of the first oblique angle plate, the first short angle plate is parallel to the first transverse angle plate, the first transverse angle plate is perpendicular to the longitudinal angle plate, the first oblique angle plate and the longitudinal angle plate are respectively arranged at two sides of the first positioning frame (2-4), the first oblique angle plate inclines towards the first longitudinal angle plate, and the first oblique angle plate inclines towards the first transverse angle plate, when the rib plate is used, the rib plates are positioned on the outer sides of the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate and are abutted against the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate, the bottom surface of the first plate group (3) is abutted against the large-area plate (1), and the rib plates positioned on the outer sides of the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are respectively attached to the large-area plate (1), so that the rib plates positioned on the outer sides of the first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are positioned on the large-area plate (1). The first transverse angle plate, the first oblique angle plate and the longitudinal angle plate are determined in position relation to form the trapezoidal plate together, and one sash spot welding of the triangular sash plate is completed.

Furthermore, in order to realize the spot welding positioning fixture for quickly spot welding the triangular frame lattice plate and improve the working process, the first positioning frame (2-4) is matched with the first plate group (3), the second positioning frame and the second plate group to control the spot welding of any isosceles trapezoid frame lattice in the triangular frame lattice plate, specifically, the second plate group is movably arranged on the second positioning frame and comprises a second transverse angle plate and a second oblique angle plate which are respectively and movably arranged on the second positioning frame, one end of the second oblique angle plate close to the longitudinal angle plate is provided with a second short angle plate towards the direction of the second oblique angle plate, the second short angle plate is parallel to the second transverse angle plate, the first transverse angle plate and the second transverse angle plate are symmetrically arranged by taking the central lines of the first positioning frame (2-4) and the second positioning frame as symmetric axes, the second oblique angle plate and the first oblique angle plate are symmetrically arranged by taking the central lines of the first positioning frame (2-4) and the second positioning frame as symmetric axes, first scute and the cooperation of second scute are used for the location of the longer gusset of isosceles trapezoid in the three corner frame boards jointly, and the cooperation of second scute and first scute is used for the location of two side gusset of isosceles trapezoid, and the scute is used for the location of the inside gusset of isosceles trapezoid to make isosceles trapezoid cut apart into two right trapezoid.

As an optional embodiment, in order to realize the separation of the triangular frame lattice plate from the positioning fixture, the triangular frame lattice plate positioning fixture further comprises a transmission mechanism, the transmission mechanism comprises a main first cylinder (3-1) and a main second cylinder, the main first cylinder and the main second cylinder are respectively connected with the first plate group (3) through a first connecting piece (3-2) and the second plate group through a second connecting piece, the first connecting piece (3-2) and the second connecting piece are three-fork connecting pieces, the first connecting piece (3-2) can be simultaneously connected with a first transverse angle plate, a first oblique angle plate and a longitudinal angle plate, the second connecting piece can be simultaneously connected with a second transverse angle plate and a second oblique angle plate, the main first cylinder (3-1) and the main second cylinder run synchronously, the main first cylinder (3-1) drives the first plate group (3) to move in the direction far away from the first positioning frame (2-4) or close to the first positioning frame (2-4), the main two cylinders drive the second plate group to move towards the direction far away from the second positioning frame or close to the second positioning frame, so that the first plate group (3) and the second plate group can be zoomed.

Furthermore, the transmission mechanism further comprises a transverse transmission group and an oblique transmission group, the number of the transverse transmission group and the oblique transmission group is matched with the sum of the number of the inner plates of the first plate group (3) and the second plate group, namely, any plate in the first plate group (3) and the second plate group is matched and connected with one transverse transmission group and one oblique transmission group, so that any plate in the first plate group (3) and the second plate group can be connected with a corresponding first positioning frame (2-4) or second positioning frame through one transverse transmission group and one oblique transmission group, and the inner plate of the first plate group (3) and the inner plate of the second plate group are positioning plates for limiting the position of the rib plate.

The transverse transmission set comprises a connecting shaft (3-7) and a linear bearing sleeved on the connecting shaft (3-7), one end of the connecting shaft (3-7) is connected with a first connecting piece (3-2) or a second connecting piece corresponding to the connecting shaft respectively, the other end of the connecting shaft (3-7) is connected with a plate in a first plate set (3) or a second plate set respectively, the oblique transmission set is arranged to be a linear guide rail (3-6), the plate in the first plate set (3) or the second plate set is sleeved on the linear guide rail (3-6) corresponding to the oblique transmission set, and the linear guide rail (3-6) is inclined to the connecting shaft (3-7) and arranged on the side wall of the first positioning frame (2-4) and the side wall of the second positioning frame respectively.

Furthermore, corner brackets (3-4) are arranged on the inner sides of any plates of the first plate group (3) and the second plate group, one side, opposite to the any plates, of each corner bracket (3-4) is provided with an inclined surface parallel to the side surface of the first positioning bracket (2-4), sliding rail blocks (3-5) matched with the linear guide rails (3-6) are arranged on the corner brackets (3-4), the sliding rail blocks (3-5) are sleeved on the linear guide rails (3-6) so that any plates of the first plate group (3) and the second plate group can move along the linear guide rails (3-6) through the corner brackets (3-4), and one side, opposite to the bottom surface of the first positioning bracket (2-4), of each corner bracket (3-4) is connected with the linear bearing.

As an optional implementation mode, electromagnets are arranged on any plate in the first positioning frame (2-4) and the second positioning frame, and electromagnets are arranged on the bottom surfaces of the first positioning frame (2-4) and the second positioning frame.

As an optional implementation mode, the triangular frame grid plate positioning fixture further comprises positioning cylinders (3-3) arranged on the moving arm (2), the number of the positioning cylinders (3-3) is 6, 1 positioning cylinder (3-3) is respectively arranged above the peripheries of the first oblique angle plate and the second oblique angle plate, 1 positioning cylinder (3-3) is respectively arranged above the middle parts of the center lines of the first positioning frame (2-4) and the second positioning frame and above the periphery of the first short angle plate, and 1 positioning cylinder (3-3) is arranged on the first transverse angle plate and the second transverse angle plate. In order to realize that the positioning cylinder (3-3) is positioned at the outer side of the first plate group (3) and the second plate group, the positioning cylinder (3-3) is fixed through a mounting plate (2-1), one side of the mounting plate (2-1) is connected with the moving arm (2), the other side of the mounting plate (2-1) is connected with the positioning cylinder (3-3), and the mounting plate (2-1) extends out of the moving arm (2). As an optional embodiment, the moving arm (2) is connected with the first positioning frame (2-4) and the moving arm (2) is connected with the second positioning frame through the supporting frame (2-2).

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.