Auxiliary frame welding tool

Abstract

The auxiliary frame welding tool comprises a base, a center clamping part, a first clamping welding mechanism and a horizontal positioning mechanism, the first clamping welding mechanism comprises a bottom plate connected to the base in a sliding mode, a first clamping head connected to the bottom plate in a sliding mode, a second clamping head connected to the bottom plate in a sliding mode and a center clamping rod fixedly connected to the bottom plate, the first clamping head and the second clamping head are driven to keep reciprocating motion, so that the workpiece keeps abutting against the center clamping rod, the workpiece is driven to abut against the auxiliary frame through the base, and the horizontal positioning mechanism comprises a movable seat slidably connected to the base, a connecting plug arranged on the movable seat and an inductor; and the movable seat is driven to keep sliding, so that the inserting head is kept in inserting connection with the auxiliary frame. According to the auxiliary frame welding tool, the first clamping head, the second clamping head and the center clamping rod are driven by the bottom plate to clamp a workpiece needing to be welded to a welding station, automatic clamping and feeding of the welded workpiece can be achieved, and therefore the welding efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile chassis production, in particular to a subframe welding tool. Background Art

[0002] Automobile skeleton workpieces are generally completed by arc welding on one or more robot workstations, such as subframe welding. The subframe is the skeleton of the front and rear axles and is a component of the front and rear axles. The subframe is not a complete frame, but only a bracket that supports the front and rear axles and suspension. During the manufacturing process, part of the workpiece needs to be welded to the subframe to meet its functional or strength requirements.

[0003] According to the invention patent application with patent number: CN105382470A and publication date of 2016-03-09, it is disclosed that the present invention provides a subframe welding tool, including a base plate, a plurality of sets of edge clamping mechanisms and a plurality of support members are arranged on the top of the base plate, and the plurality of sets of edge clamping mechanisms are dispersed around the support members; the edge clamping mechanism includes a driving unit, a driving rod and a pressure rod arranged on the top of the base plate, one end of the driving rod is connected to the driving unit, and the other end is hinged to the pressure rod, and the driving rod and the pressure rod are fixed by a fixing member; wherein, when the subframe is arranged on the top of the support member, the driving unit can drive the driving rod to move so that the lower part of the front part of the driving rod can press against the edge of the top of the subframe. The main technical effect is: firstly, the sub-frame is placed on the top of the support, and then the driving rod is driven by the driving unit to move vertically in the up-down direction, and then the angle between the driving rod and the pressure rod is adjusted so that the lower front part of the driving rod can press against the edge of the top of the sub-frame, and at the same time, the position between the driving rod and the pressure rod is fixed by the fixing member, so that the sub-frame can be supported by the upward support force of the support and the downward pressure of the pressure rod, and can be stably fixed. It can be seen that the sub-frame welding tool provided by the present invention is not only easy to operate, but also can provide sufficient clamping force for the sub-frame.

[0004] In the production process of subframe, some workpieces need to be welded to the main body of the subframe. During welding, the subframe and the workpiece need to be fixed to facilitate manual or robot welding. For this reason, a subframe welding tool is proposed, which aims to propose a mechanism that is convenient for the robot to weld the workpiece and the subframe and improve the welding efficiency. Utility Model Content

[0005] The utility model aims to provide a sub-frame welding tool, aiming to propose a mechanism that is convenient for a manipulator to weld a workpiece and a sub-frame, thereby improving welding efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sub-frame welding tool comprises a base, and also comprises a central clamping portion, a first clamping welding mechanism and a horizontal positioning mechanism arranged on the base, wherein the first clamping welding mechanism comprises a bottom plate slidably connected to the base, a first clamping head slidably connected to the bottom plate, a second clamping head and a central clamping rod fixedly connected to the bottom plate, and the first clamping head and the second clamping head are driven to maintain reciprocating motion so that the workpiece is kept in contact with the central clamping rod, and the workpiece is driven to abut against the sub-frame through the base, and the horizontal positioning mechanism comprises a movable seat slidably connected to the base, a plug connector and a sensor arranged on the movable seat, and the plug connector is kept plugged into the sub-frame by driving the movable seat to maintain sliding.

[0008] Preferably, the first clamping welding mechanism also includes a first driving cylinder and a second driving cylinder, a fixed seat is fixedly installed on the outer wall of one side of the base, the first driving cylinder is fixedly installed on the outer wall of one side of the fixed seat, the output end of the first driving cylinder is connected to the bottom plate, a slide rail is provided on the outer wall of one side of the bottom plate, the first clamping head and the second clamping head are both slidably connected to the slide rail, the second driving cylinder is fixedly installed on the first clamping head, and the output end of the second driving cylinder is connected to the second clamping head.

[0009] Preferably, the central clamping part includes a tilt positioning mechanism and a rotation limiting mechanism, the tilt positioning mechanism includes a pushing cylinder, a clamping block and a tilt positioning seat, the tilt positioning seat is fixedly mounted on the outer wall on one side of the base, the pushing cylinder is fixedly mounted on the outer wall on one side of the tilt positioning seat, and the clamping block is fixedly mounted on the output end of the pushing cylinder.

[0010] Preferably, the rotation limiting mechanism includes a third rotating cylinder, a connecting rod, a tilting seat and a limiting plate, the tilting seat is fixedly mounted on the base, the third rotating cylinder is fixedly mounted on the tilting seat, the connecting rod is fixedly connected to the output end of the third rotating cylinder, and the limiting plate is fixedly connected to the connecting rod.

[0011] Preferably, a clamping mechanism is provided at the four corners of the base, and the clamping mechanism includes a second rotating cylinder, a supporting block and a clamping block, the second rotating cylinder is fixedly installed on the base, the clamping block is fixedly installed on the second rotating cylinder, and the supporting block is fixedly installed on the outer wall of one side of the base.

[0012] Preferably, a supporting mechanism is provided on the base, and the supporting mechanism includes a lifting cylinder and a supporting seat, the lifting cylinder is fixedly connected to the base, and the supporting seat is fixedly connected to the output end of the lifting cylinder.

[0013] Preferably, the center clamping portion also includes a center clamping mechanism, which includes a socket, a fourth rotary cylinder and a rotary clamping rod, the socket is fixedly mounted on the base, the fourth rotary cylinder is fixedly mounted on the base, and the rotary clamping rod is fixedly connected to the output end of the fourth rotary cylinder.

[0014] In the above technical solution, the utility model provides a subframe welding tool, which has the following

[0015] Beneficial effects:

[0016] The utility model has a central clamping portion and a horizontal positioning mechanism arranged on a base which can fix the sub-frame, and a first clamping head and a second clamping head of a first welding clamping mechanism arranged on the base which clamp the workpiece to be welded on both sides of a central clamping rod, and the first clamping head, the second clamping head and the central clamping rod are driven by a base plate to clamp the workpiece to be welded to a welding station, so that automatic clamping and loading of the welding workpiece can be realized, thereby improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall three-dimensional structure provided for an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the installation position of each mechanism provided in the embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a first clamping welding mechanism provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of a loosening structure of a first clamping welding mechanism provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the structure of the rotation limiting mechanism provided in an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the structure of the tilt positioning mechanism provided by an embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the central clamping mechanism provided in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Base; 11. Telescopic cylinder; 12. Rotating rod; 2. Central clamping part; 21. Tilt positioning mechanism; 211. Push cylinder; 212. Clamping block; 213. Tilt positioning seat; 22. Rotation limiting mechanism; 221. Third rotating cylinder; 222. Connecting rod; 223. Tilt seat; 224. Limiting piece; 23. Central clamping mechanism; 231. Plug seat; 232. Fourth rotating cylinder; 233. Rotating clamping rod ; 3. First clamping and welding mechanism; 31. Bottom plate; 32. First clamping head; 33. Second clamping head; 34. Center clamping rod; 35. First driving cylinder; 36. Second driving cylinder; 37. Fixed seat; 4. Horizontal positioning mechanism; 41. Movable seat; 42. Plug connector; 6. Clamping mechanism; 61. Second rotating cylinder; 62. Support block; 63. Clamping block; 7. Support mechanism; 71. Lifting cylinder; 72. Support seat. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] See also Figure 1 —7. A subframe welding tool, comprising a base 1, and also comprising a central clamping portion 2, a first clamping welding mechanism 3 and a horizontal positioning mechanism 4 arranged on the base 1, wherein the first clamping welding mechanism 3 comprises a bottom plate 31 slidably connected to the base 1, a first clamping head 32, a second clamping head 33 and a central clamping rod 34 fixedly connected to the bottom plate 31, and the workpiece is kept in contact with the central clamping rod 34 by driving the first clamping head 32 and the second clamping head 33 to maintain reciprocating motion, and the workpiece is driven to abut against the subframe through the base 1, and the horizontal positioning mechanism 4 comprises a movable seat 41 slidably connected to the base 1, a plug connector 42 and a sensor arranged on the movable seat 41, and the plug connector 42 is kept plugged into the subframe by driving the movable seat 41 to maintain sliding.

[0029] As an embodiment provided by the utility model, specifically, a central clamping part 2 is fixedly installed at the center of the base 1. Specifically, the central clamping part 2 includes a tilt positioning mechanism 21 and a rotation limiting mechanism 22. The tilt positioning mechanism 21 includes a pushing cylinder 211, a clamping block 212 and a tilt positioning seat 213. Specifically, the tilt positioning seat 213 is fixedly installed on the outer wall of one side of the base 1, and the pushing cylinder 211 is fixedly installed on the tilt positioning seat 213. Preferably, the pushing cylinder 211 is tiltedly installed on the tilt positioning seat 213, and the clamping block 212 is fixedly installed on the output end of the pushing cylinder 211. The pushing cylinder 211 can drive the clamping block 212 to keep extending and retracting, and the tilted pushing cylinder 211 can be adapted The inclined surface on the sub-frame needs to be fixed, and the number of pushing cylinders 211 is two. The two pushing cylinders 211 are symmetrically arranged on the inclined positioning seat 213. Furthermore, the rotation limiting mechanism 22 includes a third rotating cylinder 221, a connecting rod 222, a tilting seat 223 and a limiting plate 224. Specifically, the tilting seat 223 is fixedly installed on the outer wall of one side of the base 1, and the third rotating cylinder 221 is tilted and fixedly connected to the tilting seat 223, the connecting rod 222 is fixedly connected to the output end of the third rotating cylinder 221, and the limiting plate 224 is fixedly connected to the connecting rod 222, so that after the output end of the third rotating cylinder 221 drives the limiting plate 224 to rotate, the limiting plate 224 can abut against the inclined surface on the sub-frame, thereby limiting the sub-frame.

[0030] As an embodiment provided by the utility model, Figure 3 and Figure 4As shown, the first clamping welding mechanism 3 includes a bottom plate 31, a first clamping head 32, a second clamping head 33 and a central clamping rod 34, and also includes a first driving cylinder 35 and a second driving cylinder 36. Preferably, the bottom plate 31 is slidably connected to the base 1, and a slide rail is fixedly arranged on the outer wall of one side of the bottom plate 31, the first clamping head 32 and the second clamping head 33 are respectively slidably connected to the slide rail, and the first clamping head 32 and the second clamping head 33 are symmetrically arranged, the central clamping rod 34 is fixedly installed on the outer wall of one side of the bottom plate 31, and the central clamping rod 34 is located between the first clamping head 32 and the second clamping head 33, a fixed seat 37 is fixedly installed on the outer wall of one side of the base 1, the bottom plate 31 is slidably connected to the fixed seat 37, the first driving cylinder 35 is fixedly installed on the fixed seat 37, and the output end of the first driving cylinder 35 is fixedly connected to the bottom plate 31, and the first driving cylinder 35 can be used to To drive the base plate 31 to keep sliding, and then move the workpiece to the welding station. Preferably, the fixed seat 37 is tilted, so that the workpiece can be tilted and moved to the welding station to reduce interference during welding. Furthermore, the second driving cylinder 36 is fixedly installed on the first clamping head 32, and the output end of the second driving cylinder 36 is fixedly connected to the second clamping head 33. A limit block is set on the base plate 31. By keeping the output end of the second driving cylinder 36 retractable, the first clamping head 32 and the second clamping head 33 can be driven to keep moving toward or away from each other. When the first clamping head 32 and the second clamping head 33 keep moving toward each other, the workpiece can be clamped on the center clamping rod 34. Sensors are provided on the second clamping head 33 and the center clamping rod 34. When clamping the workpiece, it can be judged whether the workpiece is clamped, and the workpiece is moved to the welding station through the first driving cylinder 35 to complete the welding.

[0031] As an embodiment provided by the utility model, Figure 1 and Figure 2 As shown, a clamping mechanism 6 is provided at the four corners of the base 1. Specifically, the clamping mechanism 6 includes a second rotary cylinder 61, a supporting block 62 and a clamping block 63. The second rotary cylinder 61 is fixedly mounted on the base 1, and the clamping block 63 is fixedly mounted on the second rotary cylinder 61. The supporting block 62 is fixedly mounted on the outer wall of one side of the base 1. The four corners of the base 1 can be fixed by the clamping mechanism 6, so that the sub-frame can be better fixed on the base 1.

[0032] Further, such as Figure 6 and Figure 7As shown, a supporting mechanism 7 is provided on the base 1. Specifically, the supporting mechanism 7 includes a lifting cylinder 71 and a supporting seat 72. The lifting cylinder 71 is fixedly connected to the base 1, and the supporting seat 72 is fixedly connected to the output end of the lifting cylinder 71. The supporting seat 72 is driven by the lifting cylinder 71 to keep lifting and lowering so as to abut against the sub-frame, which can facilitate the positioning of the sub-frame and the base. Preferably, a plurality of guide plates 13 are also provided on the base 1, and the distance between each two guide plates 13 is adapted to the width of the sub-frame, which can facilitate the positioning of the sub-frame and the base 1.

[0033] In the utility model, the central clamping part 2 and the horizontal positioning mechanism 4 arranged on the base 1 can fix the sub-frame, and the plug connector 42 is plugged into the sub-frame by keeping the movable seat 41 of the horizontal positioning mechanism 4 movable to position the sub-frame and the base 1, and the first clamping head 32 and the second clamping head 33 of the first clamping welding mechanism 3 arranged on the base 1 clamp the workpiece to be welded on both sides of the central clamping rod 34, and the first clamping head 32, the second clamping head 33 and the central clamping rod 34 are driven by the bottom plate 31 to clamp the workpiece to be welded to the welding station, which can realize automatic clamping and loading of the welding workpiece, thereby improving the welding efficiency.

[0034] The central clamping portion 2 also includes a central clamping mechanism 23, which includes a socket 231, a fourth rotary cylinder 232 and a rotary clamping rod 233. The socket 231 is fixedly mounted on the base 1, the fourth rotary cylinder 232 is fixedly mounted on the base 1, and the rotary clamping rod 233 is fixedly connected to the output end of the fourth rotary cylinder 232. Specifically, the number of the fourth rotary cylinder 232 and the rotary clamping rod 233 are both two, and are symmetrically arranged on the base 1.

[0035] Furthermore, a telescopic cylinder 11 is provided on the base 1, and a rotating rod 12 is rotatably connected to the telescopic cylinder 11. The rotating rod 12 is rotatably connected to the outer wall of the telescopic cylinder 11 through a movable rod to maintain the rotational connection. The rotating rod 12 can be driven by the telescopic cylinder 11 to maintain rotation.

[0036] Preferably, there are two telescopic cylinders 11 , one of which is installed at the central axis of the base 1 to cooperate with one of the supporting mechanisms 7 , and the other is used to cooperate with the tilt positioning mechanism 21 to fix the sub-frame.

[0037] The number of the supporting mechanisms 7 can be adjusted according to the positions to be supported, and the shape of the supporting seat 72 can be designed according to the shape of the sub-frame.

[0038] It should be pointed out that the first clamping welding mechanism 3 and the horizontal positioning mechanism 4 are both symmetrically arranged on the base 1, and the specific positions can be adjusted according to different sub-frame models to be produced.

[0039] Those skilled in the art will appreciate that other similar connection methods may also be used to implement the present invention, such as welding, bonding or screwing.

[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A subframe welding tool, comprising a base (1), characterized in that: The invention also comprises a central clamping portion (2) arranged on the base (1), a first clamping welding mechanism (3) and a horizontal positioning mechanism (4); the first clamping welding mechanism (3) comprises a bottom plate (31) slidably connected to the base (1), a first clamping head (32) slidably connected to the bottom plate (31), a second clamping head (33) and a central clamping rod (34) fixedly connected to the bottom plate (31); the first clamping head (32) and the second clamping head (33) are driven to maintain reciprocating motion so that the workpiece is kept in contact with the central clamping rod (34), and the workpiece is driven to abut against the sub-frame through the base (1); the horizontal positioning mechanism (4) comprises a movable seat (41) slidably connected to the base (1), a plug connector (42) arranged on the movable seat (41) and a sensor; the plug connector (42) is kept plugged into the sub-frame by driving the movable seat (41) to maintain sliding.

2. The subframe welding tool according to claim 1, characterized in that: The first clamping welding mechanism (3) further comprises a first driving cylinder (35) and a second driving cylinder (36); a fixing seat (37) is fixedly mounted on an outer wall of one side of the base (1); the first driving cylinder (35) is fixedly mounted on an outer wall of one side of the fixing seat (37); an output end of the first driving cylinder (35) is connected to a bottom plate (31); a slide rail is arranged on an outer wall of one side of the bottom plate (31); the first clamping head (32) and the second clamping head (33) are both slidably connected to the slide rail; the second driving cylinder (36) is fixedly mounted on the first clamping head (32); and an output end of the second driving cylinder (36) is connected to the second clamping head (33).

3. The subframe welding tool according to claim 1, characterized in that: The central clamping portion (2) comprises a tilting positioning mechanism (21) and a rotation limiting mechanism (22); the tilting positioning mechanism (21) comprises a pushing cylinder (211), a clamping block (212) and a tilting positioning seat (213); the tilting positioning seat (213) is fixedly mounted on an outer wall of one side of the base (1); the pushing cylinder (211) is fixedly mounted on an outer wall of one side of the tilting positioning seat (213); and the clamping block (212) is fixedly mounted on an output end of the pushing cylinder (211).

4. The subframe welding tool according to claim 3, characterized in that: The rotation limiting mechanism (22) comprises a third rotating cylinder (221), a connecting rod (222), a tilting seat (223) and a limiting plate (224); the tilting seat (223) is fixedly mounted on the base (1); the third rotating cylinder (221) is fixedly mounted on the tilting seat (223); the connecting rod (222) is fixedly connected to the output end of the third rotating cylinder (221); and the limiting plate (224) is fixedly connected to the connecting rod (222).

5. The subframe welding tool according to claim 1, characterized in that: The base (1) is provided with a clamping mechanism (6) at four corners, the clamping mechanism (6) comprising a second rotating cylinder (61), a supporting block (62) and a clamping block (63), the second rotating cylinder (61) being fixedly mounted on the base (1), the clamping block (63) being fixedly mounted on the second rotating cylinder (61), and the supporting block (62) being fixedly mounted on an outer wall of one side of the base (1).

6. The subframe welding tool according to claim 1, characterized in that: A supporting mechanism (7) is provided on the base (1), and the supporting mechanism (7) comprises a lifting cylinder (71) and a supporting seat (72), the lifting cylinder (71) is fixedly connected to the base (1), and the supporting seat (72) is fixedly connected to the output end of the lifting cylinder (71).

7. The subframe welding tool according to claim 1, characterized in that: The central clamping portion (2) further comprises a central clamping mechanism (23), the central clamping mechanism (23) comprising a socket (231), a fourth rotary cylinder (232) and a rotary clamping rod (233), the socket (231) being fixedly mounted on the base (1), the fourth rotary cylinder (232) being fixedly mounted on the base (1), and the rotary clamping rod (233) being fixedly connected to an output end of the fourth rotary cylinder (232).

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