Welding tool clamp for profile frame

Abstract

The utility model discloses a welding work fixture for a section bar frame, which comprises a bottom plate, a side plate vertically arranged at the top of the bottom plate and a movable seat arranged above the bottom plate, a first nut is fixed at the top of the bottom plate, an inner hole of the first nut is in threaded connection with a first screw rod, one end of the first screw rod is provided with a handle component, and the other end of the first screw rod is fixed on the movable seat. A second nut is fixed to the top of the movable seat, a second screw is in threaded connection with an inner hole of the second nut, a handle assembly is arranged at one end of the second screw, a clamping body is arranged at the other end of the second screw, and a square hole is formed in the side plate close to the movable seat. The profile frame is limited in the X-axis direction and the Y-axis direction through the movable seat, then the profile frame is limited in the Z-axis direction through the clamping body, the profile frame is well clamped, the profile frame is clamped more stably in the welding process, the welding precision is further guaranteed, chamfering treatment is conducted on the corners of the movable seat, and the welding quality is improved. And mutual interference between the movable seat and the profile frame is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding fixtures, and in particular relates to a welding fixture for a profile frame. Background Art

[0002] In the production process of various mechanical products, angle steel, square tube, rectangular tube and other profiles are often used to make brackets, protective covers and other three-dimensional frame structures, including the case where the product itself is a frame structure, such as the upper and lower frames of the coking tamping machine and the counterweight of the hydraulic excavator are both channel steel docking structures. The conventional production plan for this type of frame structure is to manually mark and spot weld before welding. In this process, in order to reduce the impact of welding deformation on the size of the workpiece, the workpiece needs to be clamped and fixed.

[0003] In the prior art, universal clamps are mostly elbow-type clamps and pliers-type clamps. During use, a single clamp can only clamp the profile workpiece in a single axial direction. However, for the spatial node position of a three-dimensional bracket-type structure, it is often necessary to clamp the profile workpiece in the X, Y, and Z directions respectively. This requires three or more clamps to work together to achieve the clamping of the workpiece. However, due to limited space, this clamping method often results in interference between multiple clamp clamping positions and the contours of the clamp itself, resulting in unstable clamping and low welding accuracy. In summary, there is an urgent need for a welding tooling fixture for profile frames. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a welding fixture for a profile frame, comprising a bottom plate, a side plate vertically arranged on the top of the bottom plate, and a movable seat arranged above the bottom plate, wherein:

[0005] A first nut is fixed on the top of the base plate, a first screw is threadedly connected to an inner hole of the first nut, a handle assembly is provided at one end of the first screw, and the other end is fixed to the movable seat, a second nut is fixed on the top of the movable seat, a second screw is threadedly connected to an inner hole of the second nut, the handle assembly is provided at one end of the second screw, and a clamping body is provided at the other end, and a square hole is opened on the side plate near the movable seat.

[0006] Furthermore, in the above-mentioned welding fixture for the profile frame, the handle assembly includes a sleeve fixed to one end of the second screw rod, a round shaft sleeved in the sleeve, and two limit nuts arranged at both ends of the round shaft.

[0007] Furthermore, in the above-mentioned welding fixture for the profile frame, the movable seat includes three vertical plates spliced ​​to each other and two partitions arranged at both ends of the vertical plates, and a sealed space is formed between the vertical plates and the partitions.

[0008] As a specific implementation, in the above-mentioned welding fixture for the profile frame, the first screw rod passes through the vertical plate and is fixed by two fastening nuts respectively arranged on both sides of the vertical plate.

[0009] Furthermore, in the above-mentioned welding fixture for the profile frame, the first nut is fixed to the base plate via a first support frame, and the first nut is located at the diagonal position of the square hole.

[0010] Furthermore, in the above-mentioned welding fixture for the profile frame, the second nut is fixed to the movable seat via a second support frame, and the axis of the second nut is in the same direction as the axis of the first nut.

[0011] As a specific implementation, in the above-mentioned welding fixture for the profile frame, a triangular structure is formed between the second support frame and the movable seat.

[0012] As a specific implementation, in the above-mentioned welding fixture for the profile frame, the bottom plate is a square plate.

[0013] Furthermore, in the above-mentioned welding fixture for the profile frame, the side plates are arranged on two adjacent sides of the four sides of the bottom plate.

[0014] As a specific implementation, in the above-mentioned welding fixture for the profile frame, a clamping protrusion is distributed at one end of the clamping body away from the second screw rod.

[0015] The welding fixture for profile frame of the utility model has the following advantages and beneficial effects:

[0016] The device limits the X-axis and Y-axis directions of the profile frame through the movable seat, and then limits the Z-axis direction of the profile frame through the clamping body, which has a good clamping effect on the profile frame. The device is also provided with a clamping protrusion and a second supporting frame, so that the profile frame can be clamped more stably during welding, thereby ensuring the welding accuracy. Square holes are opened on the side panels, which is more convenient for spot welding and welding of the profile frame. The corners of the movable seat are chamfered to avoid mutual interference between the movable seat and the profile frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of a welding fixture for a profile frame of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a movable seat in a welding fixture for a profile frame of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a handle assembly in a welding fixture for a profile frame of the utility model;

[0021] Figure 4 The utility model is a schematic structural diagram of a clamping body in a welding fixture for a profile frame.

[0022] Description of reference numerals:

[0023] 1-bottom plate, 2-side plate, 21-square hole, 22-vertical plate, 3-movable seat, 31-first nut, 32-first screw, 33-fastening nut, 34-first support frame, 4-clamping body, 41-second nut, 42-second screw, 43-second support frame, 5-handle assembly, 51-sleeve, 52-round shaft, 53-limiting nut. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4As shown, the welding fixture for the profile frame of the utility model includes a base plate 1, a side plate 2 vertically arranged on the top of the base plate 1, and a movable seat 3 arranged above the base plate 1, wherein a first nut 31 is fixed on the top of the base plate 1, the first nut 31 is a long nut, and the inner hole of the first nut 31 is threadedly connected to the first screw rod 32, one end of the first screw rod 32 is provided with a handle assembly 5, and the other end is fixed to the movable seat 3, a second nut 41 is fixed on the top of the movable seat 3, the second nut 41 is a long nut, and the inner hole of the second nut 41 is threadedly connected to the second screw rod 42, one end of the second screw rod 42 is provided with a handle assembly 5, and the other end is provided with a clamping body 4, a square hole 21 is opened near the movable seat 3 on the side plate 2, and the shape and size of the square hole 21 match the shape and size of the movable seat 3, and the height of the movable seat 3 satisfies the situation that the two handle assemblies 5 do not interfere with each other when rotating at the same time.

[0026] Furthermore, in the welding fixture for the profile frame of the utility model, the handle assembly 5 includes a sleeve 51 fixed to one end of the second screw 42, a round shaft 52 sleeved in the sleeve 51, and two limit nuts 53 arranged at both ends of the round shaft 52. Of course, the handle assembly 5 can also be replaced by an integrated handle, and an anti-slip layer can be provided at the grip.

[0027] Furthermore, in the welding fixture for the profile frame of the utility model, the movable seat 3 includes three vertical plates 22 spliced ​​together and two partitions arranged at both ends of the vertical plates 22. A sealed space is formed between the vertical plates 22 and the partitions. The movable seat 3 is a triangular prism as a whole. The three vertical plates 22 form a right triangle. The corners of the movable seat 3 are also chamfered. This arrangement avoids mutual interference between the movable seat 3 and the profile frame.

[0028] As a specific implementation, in the welding fixture for the profile frame of the utility model, the first screw 32 passes through the vertical plate 22 and is fixed by two fastening nuts 33 respectively arranged on both sides of the vertical plate 22. More specifically, the first screw 32 passes through the through hole opened on the beveled vertical plate 22 of the movable seat 3, while ensuring that the first screw 32 can rotate freely.

[0029] Furthermore, in the welding fixture for the profile frame of the utility model, the first nut 31 is fixed to the base plate 1 via a first support frame 34 by welding, and the first nut 31 is located at the diagonal position of the square hole 21 .

[0030] Furthermore, in the welding fixture for the profile frame of the utility model, the second nut 41 is fixed to the movable seat 3 via a second support frame 43 by welding, and the axis of the second nut 41 is in the same direction as the axis of the first nut 31 .

[0031] As a specific implementation, in the welding fixture for the profile frame of the utility model, a triangular structure is formed between the second support frame 43 and the movable seat 3. Such an arrangement allows the clamping body 4 to clamp the profile frame and be more stable during the welding process, thereby ensuring welding accuracy.

[0032] As a specific implementation, in the welding fixture for the profile frame of the utility model, the bottom plate 1 is a square plate.

[0033] Furthermore, in the welding fixture for the profile frame of the utility model, the side panels 2 are arranged on two adjacent sides of the four sides of the bottom plate 1. In actual use, the two side panels 2 are spliced ​​together, and the square hole 21 is opened at the lower part of the junction of the two side panels 2. Such an arrangement makes it more convenient to spot weld and weld the profile frame.

[0034] As a specific implementation, in the welding fixture for the profile frame of the utility model, a clamping protrusion is distributed on one end of the clamping body 4 away from the second screw 42, and the clamping body 4 is detachably connected to the second screw 42. The clamping protrusion is designed according to the profile frame that needs to be clamped during actual use. Such an arrangement can make the clamping body 4 more stable during the welding process after clamping the profile frame, thereby ensuring the welding accuracy.

[0035] The working principle of the welding fixture for profile frame of the utility model is:

[0036] First, fix the base plate 1, and limit the profile frame to be welded to the top of the base plate 1 and between the movable seat 3 and the side plate 2. Then, by rotating the handle assembly 5 at one end of the first screw 32 in the forward direction, the first screw 32 is driven to rotate forward, and then the movable seat 3 is driven to move toward the square hole 21, so as to achieve clamping of the profile frame in the X-axis and Y-axis directions. At the same time, by rotating the handle assembly 5 at one end of the second screw 42 in the forward direction, the second screw 42 is driven to rotate forward, and then the clamping body 4 is driven to move in the direction of the square hole 21, so as to achieve clamping of the profile frame in the Z-axis direction. In this way, the clamping of the profile frame is completed. Next, the positioning spot welding and welding of the profile frame can be completed in the clamped state. After the welding is completed, the handle assembly 5 is rotated in the reverse direction, the movable seat 3 and the clamping body 4 are released, and the profile frame is taken out.

[0037] In summary, compared with the prior art, the welding fixture for profile frame of the utility model has the following advantages and beneficial effects:

[0038] This device limits the X-axis and Y-axis directions of the profile frame through the movable seat, and then limits the Z-axis direction of the profile frame through the clamping body 4, which has a good clamping effect on the profile frame. It is also provided with a clamping protrusion and a second support frame 43, so that the profile frame is clamped more stably during welding, thereby ensuring the welding accuracy. A square hole is opened on the side plate 2, which is more convenient for spot welding and welding of the profile frame. The corners of the movable seat 3 are also chamfered to avoid mutual interference between the movable seat 3 and the profile frame.

[0039] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding fixture for a profile frame, characterized in that: The welding fixture for the profile frame comprises a bottom plate, a side plate vertically arranged on the top of the bottom plate, and a movable seat arranged above the bottom plate, wherein: A first nut is fixed on the top of the base plate, a first screw is threadedly connected to an inner hole of the first nut, a handle assembly is provided at one end of the first screw, and the other end is fixed to the movable seat, a second nut is fixed on the top of the movable seat, a second screw is threadedly connected to an inner hole of the second nut, the handle assembly is provided at one end of the second screw, and a clamping body is provided at the other end, and a square hole is opened on the side plate near the movable seat.

2. The welding fixture for profile frame according to claim 1, characterized in that: The handle assembly includes a sleeve fixed to one end of the second screw rod, a round shaft sleeved in the sleeve, and two limit nuts arranged at both ends of the round shaft.

3. The welding fixture for profile frame according to claim 1, characterized in that: The movable seat comprises three vertical plates spliced ​​to each other and two partition plates arranged at two ends of the vertical plates, and a sealed space is formed between the vertical plates and the partition plates.

4. The welding fixture for profile frame according to claim 3, characterized in that: After passing through the vertical plate, the first screw is fixed by two fastening nuts respectively arranged on both sides of the vertical plate.

5. The welding fixture for profile frame according to claim 1, characterized in that: The first nut is fixed to the base plate via a first support frame, and the first nut is located at the diagonal position of the square hole.

6. The welding fixture for profile frame according to claim 1, characterized in that: The second nut is fixed to the movable seat via a second support frame, and the axis of the second nut is in the same direction as the axis of the first nut.

7. The welding fixture for the profile frame according to claim 6, characterized in that: A triangle structure is formed between the second supporting frame and the movable seat.

8. The welding fixture for profile frame according to claim 1, characterized in that: The bottom plate is a square plate.

9. The welding fixture for profile frame according to claim 8, characterized in that: The side panels are arranged on two adjacent sides of the four sides of the bottom panel.

10. The welding fixture for profile frame according to claim 1, characterized in that: A clamping protrusion is distributed on one end of the clamping body away from the second screw rod.

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