Quick-change tool for arc welding clamp

Abstract

The utility model discloses a quick-change tool of an arc welding clamp. The quick-change tool comprises a base, a first clamp tool, a turnover mechanism and a second clamp tool. The first clamp tool is used for clamping workpieces of one vehicle type; the turnover mechanism is installed on the base, a pressing arm is arranged at the movable end of the turnover mechanism and used for turning over the pressing arm, and the pressing arm has the position state that the pressing arm is pressed on the top of the first clamp tool and the position state that the pressing arm is separated from the top of the first clamp tool; and the second clamp tool is arranged on the pressing arm and is used for clamping a workpiece of another vehicle type when the pressing arm is pressed at the position of the top of the first clamp tool. The turning mechanism drives the pressing arm to automatically turn, the first clamp tool and the second clamp tool are switched, and compared with the mode that a clamp is replaced through bolt fixing, time and labor are saved, switching is conveniently and rapidly completed, consistency is better, repeated positioning precision is higher, and welding seams cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of arc welding fixtures, in particular to a quick-change tooling of an arc welding fixture. Background Art

[0002] Arc welding technology is an important part of modern welding technology, and its application scope covers almost all welding production fields. Arc welding requires the use of arc welding fixtures to clamp and position the vehicle workpiece, and then use arc welding robots or manual arc welding operations. For example, Chinese patent 201721865050.1 discloses a deadlock anti-deformation arc welding fixture, including an arc welding fixture body, a deadlock clamping unit, a weldment, an upper clamping unit and an end positioning unit. At present, in arc welding, one fixture corresponds to the clamping of one type of workpiece. If another type of workpiece needs to be clamped, the fixture needs to be replaced.

[0003] In the current state of the art, the vehicle type is mainly changed by bolting the fixture, which is time-consuming and cumbersome, and requires manual tightening of the screws. The weld consistency is not good after the change, and the welding trajectory needs to be adjusted frequently, which delays production. Therefore, how to quickly switch the fixture in the arc welding process is a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, to provide a quick-change fixture for arc welding fixtures, and to solve the technical problem of how to quickly switch fixtures during an arc welding process in the prior art.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a quick-change tool for an arc welding fixture, comprising:

[0007] Pedestal;

[0008] The first fixture is used for clamping a vehicle workpiece;

[0009] a flip mechanism, which is mounted on the base and has a pressing arm at its movable end for flipping the pressing arm, the pressing arm having a position state of pressing on the top of the first fixture and a position state of being detached from the top of the first fixture; and

[0010] The second clamping tool is arranged on the pressing arm and is used for clamping a workpiece of another vehicle type when the pressing arm is in a position state pressing on the top of the first clamping tool.

[0011] In some embodiments, the first fixture tooling includes a positioning seat and a clamping mechanism. The positioning seat is installed on the top of the base and is used to insert and position the workpiece corresponding to the vehicle model. Several clamping mechanisms are arranged on the top of the base and are used to clamp the workpiece corresponding to the vehicle model.

[0012] In some embodiments, the flipping mechanism includes a fixed seat and a telescopic cylinder, the fixed seat is installed on one side of the base, the telescopic cylinder is hinged on the fixed seat, the bottom end of the pressure arm is hinged to the telescopic end of the telescopic cylinder, and one side of the pressure arm is hinged to the top of the fixed seat.

[0013] In some embodiments, the second fixture tooling includes a base plate, a socket and a clamping member. The base plate is arranged on the pressure arm, and a plurality of the sockets are arranged on the top of the base plate at equal distances along the length direction of the pressure arm for inserting another type of workpiece. The clamping member is arranged on one side of the base plate for flipping and clamping the workpiece of another type.

[0014] In some embodiments, the clamping member includes a cylinder push rod, an extension frame, a frame body and a pressure block, the extension frame is arranged on the top of the base plate, the cylinder push rod is hinged on one side of the extension frame, the frame body is hinged on the telescopic end of the cylinder push rod and hinged to one side of the extension frame, and a plurality of the pressure blocks and the sockets are arranged on the frame body in a one-to-one correspondence.

[0015] In some embodiments, a plurality of pads are disposed on the top of the first fixture.

[0016] In some embodiments, a groove is formed on the cushion block, and the width of the groove matches the width of the pressure arm.

[0017] In some embodiments, a limiting rod is disposed on the frame, and a limiting seat aligned with the limiting rod is disposed on the base plate.

[0018] In some embodiments, a plurality of hanging rings are provided on the base.

[0019] In some embodiments, a base frame is further included, and the base is detachably disposed on the base frame.

[0020] Compared with the prior art, the quick-change fixture of the arc welding fixture provided by the utility model switches between the first fixture fixture and the second fixture fixture by means of a flipping mechanism to drive the pressure arm to automatically flip. Compared with the method of changing fixtures by bolt fixation, it saves time and effort, is convenient and quick to complete the switching, and has better consistency and higher repeated positioning accuracy without affecting the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a three-dimensional structural diagram of a quick-change tooling of an arc welding fixture provided by an embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional diagram from a rear perspective of a quick-change tooling of an arc welding fixture provided by an embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional schematic diagram of a pressing arm of a quick-change tooling of an arc welding fixture provided in an embodiment of the utility model.

[0024] Description of reference numerals: 1. base; 101. lifting ring; 2. first fixture; 21. positioning seat; 22. clamping mechanism; 201. cushion block; 3. flipping mechanism; 31. fixing seat; 32. telescopic cylinder; 301. pressing arm; 4. second fixture; 41. base plate; 42. socket; 43. clamping member; 431. cylinder push rod; 432. extension frame; 433. frame; 434. pressing block; 401. limiting rod; 402. limiting seat; 5. chassis; 6. first workpiece; 7. second workpiece; DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] In order to solve the technical problem of how to quickly switch the clamps during the arc welding process, the utility model provides a quick-change tooling for arc welding clamps, which can realize the quick switching of the clamps during the arc welding process.

[0027] It should be noted that the quick-change fixture of the arc welding fixture described in the utility model is used for but not limited to the clamping and switching of vehicle workpieces. For the convenience of explanation, in the utility model, only the quick-change fixture of the arc welding fixture is used for the clamping and switching of vehicle workpieces as an example for explanation. The principle of the quick-change fixture of the arc welding fixture being used in other types of equipment is essentially the same as the principle applied to the clamping and switching of vehicle workpieces, and will not be elaborated here.

[0028] See also Figure 1 , Figure 1 The schematic diagram of the structure of the quick-change fixture of the arc welding fixture in one embodiment of the utility model is as follows. The quick-change fixture of the arc welding fixture comprises a base 1, a first fixture fixture 2, a flip mechanism 3 and a second fixture fixture 4; the first fixture fixture 2 is used for clamping a vehicle workpiece, that is, Figure 1The first workpiece 6 in the turning mechanism 3 is mounted on the base 1, and the movable end thereof is provided with a pressing arm 301 for turning the pressing arm 301, the pressing arm 301 having a position state pressed on the top of the first fixture tooling 2, and a position state out of the top of the first fixture tooling 2, which can be respectively referred to Figure 1 and Figure 3 , Figure 1 The pressing arm 301 is in a position state away from the top of the first fixture 2. Figure 3 The pressure arm 301 is in the position state where it is pressed on the top of the first fixture 2; the second fixture 4 is arranged on the pressure arm 301 and is used to clamp another type of workpiece when the pressure arm 301 is pressed on the top of the first fixture 2, that is, Figure 3 The second workpiece 7 in.

[0029] In this embodiment, when it is necessary to weld the second workpiece 7, the first workpiece 6 below is fully clamped by the first fixture 2, and the pressure arm 301 is lowered by the flip mechanism 3. When the pressure arm 301 is pressed on the top of the first fixture 2, the second workpiece 7 is clamped by the second fixture 4 and welding can be carried out. For example, a sleeve can be welded on the workpiece, which has a quick switching effect and does not require manual tightening of screws and frequent adjustment of the welding trajectory. When the first workpiece 6 is selected to be welded, the pressure arm 301 is lifted and opened to be separated from the top of the first fixture 2, and the welding operation on the first workpiece 6 can be carried out.

[0030] It can be understood that when the pressure arm 301 is in a position state pressing on the top of the first fixture 2, its opening angle is 0 degrees, and when the pressure arm 301 is out of a position state of the top of the first fixture 2, its opening angle is 105 degrees, so as to facilitate welding of the first workpiece 6 product below.

[0031] In one embodiment, see Figure 1 The first fixture 2 includes a positioning seat 21 and a clamping mechanism 22. The positioning seat 21 is installed on the top of the base 1 and is used to insert and position the workpiece of the corresponding vehicle model. The positioning seat 21 is provided with positioning units such as bosses according to the shape of the corresponding workpiece. The workpiece is inserted between the various positioning units to form a position positioning. After positioning, it is clamped by the clamping mechanism 22 to form a stable clamping. Several clamping mechanisms 22 are arranged on the top of the base 1 to clamp the workpiece of the corresponding vehicle model for insertion and positioning. The number of clamping mechanisms 22 can be set according to the requirements of different workpiece shapes.

[0032] In this embodiment, the clamping mechanism 22 may be a combination of a cylinder and a pressure plate. The cylinder can be extended and retracted to drive the pressure plate to flip. The extension and retraction of the cylinder drives the pressure plate to flip, thereby clamping the top of the workpiece.

[0033] It is understandable that the clamping mechanism 22 may also adopt other clamping structures commonly used in the art to achieve the purpose of clamping, and this is not a sole limitation herein.

[0034] In one embodiment, see Figure 2 In order to flip the pressing arm 301, the flipping mechanism 3 includes a fixed seat 31 and a telescopic cylinder 32. The fixed seat 31 is installed on one side of the base 1, and the telescopic cylinder 32 is hinged on the fixed seat 31. The bottom end of the pressing arm 301 is hinged to the telescopic end of the telescopic cylinder 32, and one side of the pressing arm 301 is hinged to the top of the fixed seat 31. Through the extension and retraction of the telescopic cylinder 32, the pressing arm 301 is driven to rotate with the hinge with the fixed seat 31 as the base point, forming a flip, so that it is pressed to the top of the first fixture 2, or lifted to the side of the first fixture 2.

[0035] In this embodiment, when the pressing arm 301 is pressed onto the top of the first clamping fixture 2 , the second workpiece 7 can be clamped, and when the pressing arm 301 is raised to the side of the first clamping fixture 2 , the first workpiece 6 can be clamped.

[0036] In one embodiment, see Figure 2 In order to clamp the second workpiece 7 when the pressing arm 301 is pressed onto the top of the first fixture 2, the second fixture 4 includes a base plate 41, a socket 42 and a clamping member 43. The base plate 41 is arranged on the pressing arm 301, located at the top of the horizontal pressing arm 301. A plurality of sockets 42 are arranged at equal distances along the length direction of the pressing arm 301 on the top of the base plate 41 for inserting another type of workpiece. The clamping member 43 is arranged on one side of the base plate 41 for flipping and clamping another type of workpiece.

[0037] In this embodiment, when the pressing arm 301 is placed horizontally, the second workpieces 7 are placed one by one on the sockets 42 and then clamped by the clamping member 43 .

[0038] Furthermore, the clamping member 43 includes a cylinder push rod 431, an extension frame 432, a frame body 433 and a pressure block 434. The extension frame 432 is arranged on the top of the base plate 41, the cylinder push rod 431 is hinged on one side of the extension frame 432, the frame body 433 is hinged at the telescopic end of the cylinder push rod 431, and is hinged to one side of the extension frame 432. Several pressure blocks 434 are arranged on the frame body 433 in a one-to-one correspondence with the socket 42. Through the extension and retraction of a cylinder push rod 431, the frame body 433 is driven to flip over, and multiple pressure blocks 434 are pressed down at the same time, so that the second workpiece 7 located on the socket 42 is pressed tightly to form a clamping positioning.

[0039] In one embodiment, see Figure 1In order to limit and support the depressed position of the pressing arm 301 , a plurality of pads 201 are provided on the top of the first fixture 2 to support the bottom of the depressed pressing arm 301 .

[0040] Furthermore, a groove is formed on the cushion block 201 , and the width of the groove matches the width of the pressing arm 301 . When the pressing arm 301 is pressed down, it is inserted into the groove to form a limit and support.

[0041] In one embodiment, see Figure 2 A limit rod 401 is provided on the frame 433, and a limit seat 402 corresponding to the limit rod 401 is provided on the base plate 41. After flipping, the limit rod 401 is pressed onto the top of the limit seat 402, thereby limiting and positioning the flipping range of the frame 433.

[0042] In one embodiment, see Figure 1 The base 1 is provided with a plurality of lifting rings 101, which facilitates the lifting of the base 1 and the transfer of the entire quick-change tooling.

[0043] In one embodiment, see Figure 1 , and also includes a base frame 5, on which the base 1 is detachably arranged, and the height position of the base 1 can be adjusted to facilitate operation by workers.

[0044] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail: when it is necessary to perform arc welding on the first workpiece 6, the pressure arm 301 is lifted up by the flipping mechanism 3 and placed beside the first fixture 2, and the first workpiece 6 is clamped on the first fixture 2, and arc welding can be performed on the first workpiece 6; when it is necessary to perform arc welding on the second workpiece 7, the pressure arm 301 is pressed down by the flipping mechanism 3 and placed on the top of the first fixture 2, and the second workpiece 7 can be clamped on the second fixture 4, and arc welding of the second workpiece 7 can be performed.

[0045] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A quick-change fixture for an arc welding fixture, characterized in that: include: Pedestal; The first fixture is used for clamping a vehicle workpiece; A flip mechanism, which is mounted on the base and has a pressing arm at its movable end for flipping the pressing arm, the pressing arm having a position state of pressing on the top of the first fixture tooling and a position state of being detached from the top of the first fixture tooling; as well as The second clamping tool is arranged on the pressing arm and is used for clamping a workpiece of another vehicle type when the pressing arm is in a position state pressing on the top of the first clamping tool.

2. The quick-change fixture for arc welding fixture according to claim 1, characterized in that: The first fixture tooling includes a positioning seat and a clamping mechanism. The positioning seat is installed on the top of the base and is used to insert and position the workpiece corresponding to the vehicle model. Several clamping mechanisms are arranged on the top of the base and are used to clamp the workpiece corresponding to the vehicle model.

3. The quick-change fixture for arc welding fixture according to claim 2, characterized in that: The flipping mechanism includes a fixed seat and a telescopic cylinder, wherein the fixed seat is installed on one side of the base, the telescopic cylinder is hinged on the fixed seat, the bottom end of the pressure arm is hinged to the telescopic end of the telescopic cylinder, and one side of the pressure arm is hinged to the top of the fixed seat.

4. The quick-change fixture for arc welding fixture according to claim 3, characterized in that: The second fixture tooling includes a base plate, a socket and a clamping piece. The base plate is arranged on the pressure arm. Several sockets are arranged at equal distances along the length direction of the pressure arm on the top of the base plate for inserting another type of workpiece. The clamping piece is arranged on one side of the base plate for flipping and clamping the workpiece of another type.

5. The quick-change fixture for arc welding fixture according to claim 4, characterized in that: The clamping member includes a cylinder push rod, an extension frame, a frame body and a pressure block. The extension frame is arranged on the top of the base plate, the cylinder push rod is hinged on one side of the extension frame, the frame body is hinged on the telescopic end of the cylinder push rod and is hinged to one side of the extension frame, and a plurality of the pressure blocks are arranged on the frame body in a one-to-one correspondence with the sockets.

6. The quick-change fixture for arc welding fixture according to claim 5, characterized in that: A plurality of cushion blocks are arranged on the top of the first fixture.

7. The quick-change fixture for arc welding fixture according to claim 6, characterized in that: The cushion block is provided with a groove, and the width of the groove matches the width of the pressure arm.

8. The quick-change fixture for arc welding fixture according to claim 7, characterized in that: A limiting rod is arranged on the frame, and a limiting seat which is aligned with the limiting rod is arranged on the base plate.

9. The quick-change fixture for arc welding fixture according to claim 8, characterized in that: A plurality of hanging rings are arranged on the base.

10. The quick-change fixture for arc welding fixture according to claim 9, characterized in that: It also includes a bottom frame, and the base is detachably arranged on the bottom frame.

Images