Welding tool clamp assembly

Abstract

The utility model provides a welding tool clamp assembly which comprises a rectangular frame. The turnover mechanism is arranged in the middle of the rectangular frame, the upper side, the lower side, the left side and the right side of the turnover mechanism are each provided with a clamping mechanism, and the positions of the four clamping mechanisms are changed through the turnover mechanism; and one end of the clamping mechanism is detachably connected with the turnover mechanism through the inserting mechanism. Through the design that the turnover mechanism and the clamping mechanisms are arranged on the upper side, the lower side, the left side and the right side of the turnover mechanism, the four clamping mechanisms are cyclically replaced in four directions, workpieces on other clamping mechanisms can still be welded while workpiece reloading is completed through welding on a single clamping mechanism, waiting for workpiece reloading is not needed, and the work efficiency is improved. And the overall machining time occupied by the material changing procedure is shortened.

Description

Technical Field

[0001] The utility model relates to a welding fixture assembly. Background Art

[0002] Welding plays a vital role in mechanical processing; welded connections provide strong connections, allowing mechanical equipment to achieve high strength and rigidity while having good corrosion resistance; this feature is fully reflected in fields such as automotive parts processing and shipbuilding.

[0003] At present, when a workpiece is being welded, it needs to be clamped and positioned by a welding fixture to prevent it from moving during processing; the current welding fixture can only clamp a single workpiece at a time. Before welding, the workpiece is clamped and installed. After welding, the workpiece is unclamped, removed, and then the next workpiece is clamped to perform welding processing again; the above-mentioned welding fixture has low continuity when welding large quantities of workpieces. When the workpiece on the fixture is replaced, the welding process needs to be stopped and waiting, resulting in a waste of welding time and affecting the overall processing efficiency. Utility Model Content

[0004] The utility model provides a welding fixture assembly to solve the technical problems of low welding efficiency and unsuitability for mass welding processing.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a welding fixture assembly, comprising a rectangular frame; further comprising: a flip mechanism arranged in the middle of the rectangular frame, wherein a clamping mechanism is respectively arranged on the upper, lower, left and right sides of the flip mechanism, and the positions of the four clamping mechanisms are changed through the flip mechanism; and a plug-in mechanism, wherein one end of the clamping mechanism is detachably connected to the flip mechanism through the plug-in mechanism.

[0007] Preferably, the flipping mechanism includes a cylinder, a motor and a side frame; an axis body is fixedly installed in the middle of the cylinder, and a side frame is rotatably installed at both ends of the axis body, and the side frame is fixedly installed to the top of the rectangular frame, the bottom surface of the motor is fixedly connected to the top surface of the rectangular frame, and the output shaft end of the motor is fixedly connected to one end of the axis body.

[0008] Preferably, the clamping mechanism consists of two side plates, two screws and two movable plates; the two screws are respectively rotatably installed between the two side plates, and external threads with opposite thread directions are provided at both ends of the screw, and threaded holes with opposite thread directions are provided on the two movable plates, and the threaded holes on the two movable plates are respectively connected with the external threads at both ends of the screw; the side plates are fixed with guide rods, and the guide rods are connected with guide grooves provided on the movable plates with clearance fit.

[0009] Preferably, it also includes a driving box, which includes a box body, a rotating shaft, a first bevel gear, a short shaft, a second bevel gear and a driving part; the box body is fixedly mounted on the plate surface of the side plate, and the rotating shaft is rotatably mounted to the inside of the box body, and the first bevel gear is fixedly sleeved on the rotating shaft, and the first bevel gear is meshingly connected to the second bevel gear, and a short shaft is fixedly connected to the middle part of the second bevel gear, the short shaft is rotatably connected to the box body, and one end of the short shaft is fixedly connected to one end of the screw.

[0010] Preferably, the driving part is composed of a worm wheel, a worm and a rocker; the worm wheel is fixedly sleeved on the rotating shaft, the worm is rotatably installed in the box, the worm is meshingly connected with the worm wheel, one end of the worm is fixedly connected to one end of the rocker, and the rocker is rotatably installed on the outer wall of the box.

[0011] Preferably, the plug-in mechanism includes a slide bar and an elastic plug rod; the slide bar is fixedly connected to one end of the side plate, and four slide grooves distributed in a circular array are opened on the cylindrical surface of the cylinder along the length, the slide bar is slidably installed in the slide groove, the elastic plug rod is installed on the side plate, and a socket is opened on the inner groove wall of the slide groove, and one end of the elastic plug rod is plugged into the socket.

[0012] Preferably, the elastic insertion rod includes a guide hole opened in the side plate, an insertion rod and a spring. A concave hole is opened at one end of the side plate, and the concave hole is connected with one end of the guide hole. The concave hole passes through the slide bar, and the insertion rod is connected with the guide hole with a clearance fit, and the insertion rod passes through the concave hole. A spring is arranged in the concave hole, and the insertion rod is elastically connected to one end wall of the concave hole through the spring.

[0013] Preferably, one end of the side plate away from the slide bar is fixedly connected to a support rod, and a ball is installed at the end of the support rod; a recessed hole is opened at the end of the support rod, and the ball is embedded in the recessed hole, and a retaining ring is fixedly connected to the end of the support rod.

[0014] Preferably, at least one supporting frame is fixedly mounted on both sides of the rectangular frame.

[0015] Preferably, a baffle is fixedly connected to one end of the cylinder, and the baffle covers one end of the slide groove.

[0016] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0017] The positive and progressive effects of the utility model are:

[0018] The welding fixture assembly proposed above is designed with a flipping mechanism and clamping mechanisms on the upper, lower, left and right sides of the flipping mechanism, so that the four clamping mechanisms can be replaced in four positions in a cycle. While welding is completed on a single clamping mechanism to change the workpiece, the workpieces on other clamping mechanisms can still be welded without waiting for the workpiece to be changed, thereby reducing the overall processing time occupied by the change process. At the same time, when the workpiece is flipped to the left and right sides of the flipping mechanism, the top and bottom of the workpiece are respectively facing upward, which can facilitate the welding of the top and bottom of the workpiece at the above two positions, providing convenience for workpieces that need to be welded on both sides; further, through the design of the plug-in mechanism, the clamping mechanism can be detachably installed on the flipping mechanism, and the clamping mechanisms corresponding to different workpieces can be replaced to meet different processing requirements and improve the overall applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the drive box of the utility model.

[0022] Figure 4 It is a schematic diagram of the installation cross-sectional structure of the side plate and the cylinder of the utility model.

[0023] Description of Reference Numerals

[0024] 1. Rectangular frame; 2. Support frame; 3. Cylinder; 301. Slide groove; 302. Socket; 4. Side frame; 5. Motor; 6. Clamping mechanism; 601. Side plate; 602. Screw; 603. Movable plate; 604. Guide rod; 7. Slide bar; 8. Drive box; 801. Box body; 802. Rotating shaft; 803. First bevel gear; 804. Short shaft; 805. Second bevel gear; 806. Worm gear; 807. Worm; 808. Rocker; 9. Baffle; 10. Support rod; 11. Insert rod; 12. Ball; 13. Guide hole; 14. Concave hole; 15. Spring. DETAILED DESCRIPTION

[0025] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0026] like Figure 1-4As shown, the welding fixture assembly includes a rectangular frame 1; it also includes: a flip mechanism arranged in the middle of the rectangular frame 1, and a clamping mechanism 6 is respectively arranged on the upper, lower, left and right sides of the flip mechanism, and the flip mechanism is used to change the position of the four clamping mechanisms 6; a plug-in mechanism, one end of the clamping mechanism 6 is detachably connected to the flip mechanism through the plug-in mechanism.

[0027] The flipping mechanism includes a cylinder 3, a motor 5 and a side frame 4; an axis body is fixedly installed in the middle of the cylinder 3, and a side frame 4 is rotatably installed at both ends of the axis body, and the side frame 4 is fixedly installed to the top of the rectangular frame 1, the bottom surface of the motor 5 is fixedly connected to the top surface of the rectangular frame 1, and the output shaft end of the motor 5 is fixedly connected to one end of the axis body.

[0028] The clamping mechanism 6 is composed of a guide rod 604, two side plates 601, two screw rods 602 and two movable plates 603; the two screw rods 602 are respectively rotatably installed between the two side plates 601, and external threads with opposite thread rotation directions are arranged at both ends of the screw rod 602. The two movable plates 603 are provided with threaded holes with opposite thread rotation directions, and the threaded holes on the two movable plates 603 are respectively connected with the external threads at both ends of the screw rod 602; the side plate 601 is fixedly connected with a guide rod 604, and the guide rod 604 is connected with a guide groove provided on the movable plate 603 with clearance fit.

[0029] It also includes a driving box 8, which includes a box body 801, a rotating shaft 802, a first bevel gear 803, a short shaft 804, a second bevel gear 805 and a driving part; the box body 801 is fixedly installed on the plate surface of the side plate 601, and the rotating shaft 802 is rotatably installed inside the box body 801, and the first bevel gear 803 is fixedly sleeved on the rotating shaft 802, and the first bevel gear 803 is meshingly connected to the second bevel gear 805, and the middle part of the second bevel gear 805 is fixedly connected with a short shaft 804, and the short shaft 804 is rotatably connected to the box body 801, and one end of the short shaft 804 is fixedly connected to one end of the screw 602.

[0030] The driving part is composed of a worm wheel 806, a worm 807 and a rocker 808; the worm wheel 806 is fixedly sleeved on the rotating shaft 802, the worm 807 is rotatably installed in the box body 801, the worm 807 is meshingly connected with the worm wheel 806, one end of the worm 807 is fixedly connected to one end of the rocker 808, and the rocker 808 is rotatably installed on the outer wall of the box body 801.

[0031] The plug-in mechanism includes a slide bar 7 and an elastic plug rod 11; the slide bar 7 is fixedly connected to one end of the side plate 601, and four slide grooves 301 distributed in a circular array are opened along the length of the cylindrical surface of the cylinder 3, the slide bar 7 is slidably installed in the slide groove 301, and the elastic plug rod 11 is installed on the side plate 601. A socket 302 is opened on the inner groove wall of the slide groove 301, and one end of the elastic plug rod 11 is plugged into the socket 302.

[0032] The elastic plug rod 11 includes a guide hole 13 opened in the side plate 601, the plug rod 11 and a spring 15. A recessed hole 14 is opened at one end of the side plate 601, and the recessed hole 14 is connected with one end of the guide hole 13. The recessed hole 14 passes through the slide bar 7. The plug rod 11 is connected with the guide hole 13 with a clearance fit, and the plug rod 11 passes through the recessed hole 14. A spring 15 is arranged in the recessed hole 14. The plug rod 11 is elastically connected to one end wall of the recessed hole 14 through the spring 15.

[0033] The end of the side plate 601 away from the slide bar 7 is fixedly connected to a support rod 10, and a ball 12 is installed at the end of the support rod 10; a recessed hole 14 is opened at the end of the support rod 10, and the ball 12 is embedded in the recessed hole 14, and a retaining ring is fixedly connected to the end of the support rod 10.

[0034] In the above, through the design of the support rod 10 and the ball 12, after the clamping mechanism 6 is removed from the cylinder 3, the ball 12 on the support rod 10 can contact the ground and perform rolling friction, which facilitates transportation and movement when the clamping mechanism 6 is pulled to move.

[0035] The inner diameter of the retaining ring is smaller than the ball diameter of the ball 12 , so as to prevent the ball 12 from escaping from the recessed hole 14 .

[0036] At least one supporting frame 2 is fixedly mounted on both sides of the rectangular frame 1 .

[0037] A baffle plate 9 is fixedly connected to one end of the cylinder 3 , and the baffle plate 9 covers one end of the slide groove 301 .

[0038] Working principle: In specific implementation, the entire welding fixture assembly has four clamping mechanisms 6, which can simultaneously clamp four workpieces around the cylinder 3. Two welding devices are respectively set at the left and right sides of the cylinder 3. At the same time, two workers are assigned to operate the welding equipment at these two positions, so that they serve as two welding stations, while the lower side of the cylinder 3 is used as a material replacement station, and a worker is assigned to replace the workpieces on the clamping mechanism 6 at the bottom of the cylinder 3.

[0039] When multiple workpieces are to be welded, the first workpiece is clamped by the clamping mechanism 6 at the bottom of the cylinder 3. After clamping, the cylinder 3 is driven by the motor 5 to rotate 90°, so that the first workpiece moves to the left side of the cylinder 3, and the welding process of the top surface of the first workpiece is carried out by the welding equipment; in the above process, the clamping mechanism 6 on the right side of the cylinder 3 moves to the bottom of the cylinder 3, and the second workpiece is manually clamped on the clamping mechanism 6 below the cylinder 3. After the top surface of the first workpiece is processed, the cylinder 3 is driven to continue to rotate 90 degrees, and the second workpiece moves to the left side of the cylinder 3 to weld the top surface. The first workpiece moves to the top surface of the cylinder 3 and is idle. Then the third workpiece is clamped below the cylinder 3. After the top surface of the second workpiece is welded, the cylinder 3 is driven to rotate 90 degrees. The movable cylinder 3 rotates 90 degrees again, and the first workpiece moves to the right side of the cylinder 3, and the upper and lower surfaces of the first workpiece are reversed, with its bottom surface facing upwards. At this time, the welding process of the bottom surface can be conveniently carried out. The second workpiece is idle on the top surface of the cylinder 3, and the third workpiece is on the left side of the cylinder 3. The top surface is welded, and the fourth workpiece is clamped at the bottom of the cylinder 3. After the top surface of the third workpiece and the bottom surface of the first workpiece are welded, the cylinder 3 is driven to rotate 90 degrees again, and the first workpiece returns to the bottom of the cylinder 3. At this time, the welding of the top and bottom surfaces is completed, the first workpiece is removed, and then the fifth workpiece is replaced. Through the above cycle, the upper and lower surfaces of the workpiece can be welded in an assembly line to meet the welding needs of large quantities of workpieces.

[0040] Furthermore, the clamping mechanism 6 is detachably installed and can be replaced. The clamping mechanism 6 corresponding to different workpieces can be replaced. The specific replacement operation is as follows: two workers manually pull the plug rods 11 on the two side plates 601 of the clamping mechanism 6 to pull the plug rods 11 out of the sockets 302, cancel the positioning plug, and then pull the clamping mechanism 6 along the length direction of the cylinder 3 to make the slide bar 7 slide in the length direction of the slide groove 301 until the slide bar 7 is separated from the slide groove 301, completing the disassembly and installing the new one. The clamping mechanism 6, two staff members pull the insertion rod 11 with one hand to make the insertion rod 11 enter the concave hole 14, and hold up the entire clamping mechanism 6 with the other hand, and insert the slide bar 7 from the end of the slide groove 301 until the end of the slide bar 7 contacts the baffle 9. At this time, the insertion rod 11 is aligned with the insertion hole 302. When the insertion rod 11 is pulled, the spring 15 is compressed, and the insertion rod 11 is released. The elastic force of the spring 15 can make the insertion rod 11 inserted into the insertion hole 302, and the positioning is completed to complete the installation;

[0041] The operation of the clamping mechanism 6 is as follows: by rotating the rocker 808, the worm 807 is driven to rotate, and the rotating shaft 802 can be rotated through the meshing transmission between the worm 807 and the worm wheel 806, and then the short shaft 804 can drive the screw 602 to rotate through the meshing transmission of the first bevel gear 803 and the second bevel gear 805. Since the threads at both ends of the screw 602 have opposite rotation directions, and the threaded holes on the two movable plates 603 also have opposite rotation directions, the two movable plates 603 are driven to move closer to or away from each other by the guidance of the guide rod 604 and the guide groove, thereby clamping or loosening the workpiece.

[0042] The motor 5 is a servo motor with a brake, which is used to drive the cylinder 3 to rotate.

[0043] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A welding fixture assembly, comprising a rectangular frame (1); characterized in that: Also includes: A turning mechanism is arranged in the middle of the rectangular frame (1), wherein a clamping mechanism (6) is respectively arranged on the upper, lower, left and right sides of the turning mechanism, and the positions of the four clamping mechanisms (6) are changed by the turning mechanism; A plug-in mechanism, one end of the clamping mechanism (6) is detachably connected to the flipping mechanism via the plug-in mechanism.

2. The welding fixture assembly according to claim 1, characterized in that: The turning mechanism comprises a cylinder (3), a motor (5) and a side frame (4); a shaft body is fixedly mounted in the middle of the cylinder (3), a side frame (4) is rotatably mounted at both ends of the shaft body, and the side frame (4) is fixedly mounted to the top of the rectangular frame (1), the bottom surface of the motor (5) is fixedly connected to the top surface of the rectangular frame (1), and the output shaft end of the motor (5) is fixedly connected to one end of the shaft body.

3. The welding fixture assembly according to claim 2, characterized in that: The clamping mechanism (6) is composed of two side plates (601), two screw rods (602) and two movable plates (603); the two screw rods (602) are respectively rotatably installed between the two side plates (601), and external threads with opposite thread rotation directions are arranged at both ends of the screw rod (602); the two movable plates (603) are provided with threaded holes with opposite thread rotation directions, and the threaded holes on the two movable plates (603) are respectively connected to the external threads at both ends of the screw rod (602); the side plates (601) are fixedly connected with guide rods (604), and the guide rods (604) are connected to the guide grooves provided on the movable plates (603) with clearance fit.

4. The welding fixture assembly according to claim 3, characterized in that: The invention also comprises a driving box (8), wherein the driving box (8) comprises a box body (801), a rotating shaft (802), a first bevel gear (803), a short shaft (804), a second bevel gear (805) and a driving part; the box body (801) is fixedly mounted on the plate surface of the side plate (601); the rotating shaft (802) is rotatably mounted inside the box body (801); the first bevel gear (803) is fixedly sleeved on the rotating shaft (802); the first bevel gear (803) is meshingly connected with the second bevel gear (805); a short shaft (804) is fixedly connected to the middle part of the second bevel gear (805); the short shaft (804) is rotatably connected to the box body (801); and one end of the short shaft (804) is fixedly connected to one end of the screw rod (602).

5. The welding fixture assembly according to claim 4, characterized in that: The driving part is composed of a worm wheel (806), a worm (807) and a rocker (808); the worm wheel (806) is fixedly sleeved on the rotating shaft (802), the worm (807) is rotatably installed in the box body (801), the worm (807) is meshingly connected with the worm wheel (806), one end of the worm (807) is fixedly connected to one end of the rocker (808), and the rocker (808) is rotatably installed on the outer wall of the box body (801).

6. The welding fixture assembly according to claim 3, characterized in that: The plug-in mechanism comprises a slide bar (7) and an elastic plug rod (11); the slide bar (7) is fixedly connected to one end of the side plate (601); four slide grooves (301) distributed in a ring array are provided on the cylindrical surface of the cylinder (3) along the length; the slide bar (7) is slidably installed in the slide groove (301); the elastic plug rod (11) is installed on the side plate (601); a plug hole (302) is provided on the inner groove wall of the slide groove (301); one end of the elastic plug rod (11) is plugged into the plug hole (302).

7. The welding fixture assembly according to claim 6, characterized in that: The elastic insertion rod (11) comprises a guide hole (13) opened in the side plate (601), the insertion rod (11) and a spring (15); a concave hole (14) is opened at one end of the side plate (601), and the concave hole (14) is connected with one end of the guide hole (13); the concave hole (14) passes through the slide bar (7); the insertion rod (11) is connected with the guide hole (13) with a clearance fit, and the insertion rod (11) passes through the concave hole (14); a spring (15) is arranged in the concave hole (14); the insertion rod (11) is elastically connected to one end wall of the concave hole (14) through the spring (15).

8. The welding fixture assembly according to claim 6, characterized in that: One end of the side plate (601) away from the slide bar (7) is fixedly connected to a support rod (10), and a ball (12) is installed at the end of the support rod (10); a recessed hole (14) is opened at the end of the support rod (10), and the ball (12) is embedded in the recessed hole (14); and a retaining ring is fixedly connected to the end of the support rod (10).

9. The welding fixture assembly according to claim 1, characterized in that: At least one supporting frame (2) is fixedly mounted on both sides of the rectangular frame (1).

10. The welding fixture assembly according to claim 6, characterized in that: A baffle (9) is fixedly connected to one end of the cylinder (3), and the baffle (9) covers one end of the slide groove (301).

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