Welding fixture and oil collector welding device

Abstract

The utility model discloses a welding clamp and an oil collector welding device, according to the scheme, a pair of clamp assemblies are arranged on two sides of a supporting assembly, and the two sides of an oil collector are clamped through work switching of the pair of clamp assemblies, so that when one side of the oil collector is welded, the oil collector can be conveniently welded, and the welding efficiency is improved. The two ends of the other side of the oil collector are clamped through the clamp assembly on the other side, so that a sufficient operation space is provided for welding work, when the other side needs to be welded, clamping is conducted through the clamp assembly on one side, conversion of the operation space is achieved, and great convenience and flexibility are provided for welding of the oil collector.

Description

Technical Field

[0001] The utility model relates to the field of welding auxiliary devices, in particular to a welding fixture and an oil collector welding device. Background Art

[0002] Welding is a common method in the processing of mechanical parts. Traditional welding processing mostly relies on manual processing. With the increasing popularity and technological improvement of industrial mechanization and automation, the welding process will produce gases and high temperatures that harm operators. Therefore, using a robotic arm for welding has become a popular research field nowadays. However, due to the different shapes and structures of the workpieces to be welded, it is very necessary to use fixtures to assist in clamping the workpieces to be welded during the welding process. As a part that requires multiple welding, the oil collector has a large welding area and span. When welding it with a welding robot, it is often impossible to complete the welding well in one process due to the blocking interference of the fixture components. The use of manual intervention will result in relatively low work efficiency. At the same time, there are also work safety risks of manual operation. For example, during the welding process, the operator may be affected by high temperature and harmful gases, which poses certain safety risks. Therefore, it is of practical significance to improve the degree of mechanization in the welding process, reduce manual dependence, and improve the efficiency of welding assistance. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide a welding fixture and an oil collector welding device with simple structure, reliable implementation and flexible assistance.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the utility model is:

[0005] A welding fixture, comprising:

[0006] A support assembly, the upper end of which is used to support the workpiece to be welded;

[0007] A pair of clamp assemblies are arranged on both sides of the support assembly, and the pair of clamp assemblies and the workpieces to be welded have a first state and a second state that cooperate with each other;

[0008] In the first state, the workpiece to be welded is placed on the upper end of the support assembly, and one of the pair of clamp assemblies clamps and constrains the workpiece to be welded at both ends from one side of the workpiece to be welded, so that the other side of the workpiece to be welded serves as a welding operation area;

[0009] In the second state, the workpiece to be welded is placed on the upper end of the support assembly, and the other clamp assembly in the pair of clamp assemblies clamps and constrains the workpiece to be welded at both ends from the other side of the workpiece to be welded, so that one side of the workpiece to be welded serves as the welding operation area.

[0010] As a possible implementation, further, the support assembly of this solution includes:

[0011] The first base is a plate-like structure;

[0012] The support frame has a U-shaped cross section and is arranged on the upper end surface of the first base. The upper end of the support frame is used to place and vertically support the workpiece to be welded. One side of the upper end of the support frame is provided with a protrusion for limiting the lateral movement of the workpiece to be welded.

[0013] As a preferred implementation option, preferably, the support frame described in this solution is formed of metal material, and its upper end has a U-shaped support portion for placing and vertically supporting the workpiece to be welded.

[0014] As a preferred implementation option, preferably, the clamp assembly described in this solution includes:

[0015] A second base, disposed on one side of the support assembly;

[0016] A support plate, fixedly arranged above the second base through a support column;

[0017] A pair of rotary drivers are arranged opposite to each other on the upper end surface of the support plate, and the rotary drivers have a rotary driving end;

[0018] The clamping arms are a pair and correspond to the rotary drive one by one, and one end of the clamping arms is connected to the rotary drive end of the rotary drive, and the rotary drive end of the rotary drive drives the other end of the clamping arms to move in a direction close to or away from the support assembly, wherein the pair of clamping arms have a mutually matched clamping state and a loosening state.

[0019] In the clamping state, the pair of clamp arms are driven by their corresponding rotary drivers to move in a direction close to the support assembly, so that a clamping area for clamping the two ends of the workpiece to be welded is formed between the other ends of the pair of clamp arms, and when the workpiece to be welded is placed on the support assembly, it is located in the clamping area;

[0020] In the loose state, the pair of clamping arms are driven by their corresponding rotary drivers to move in a direction away from the supporting assembly, so that the workpiece to be welded in the clamping area is released from the clamping.

[0021] As a preferred implementation option, preferably, the rotary driver described in this solution is a rotary cylinder or a rotary electric cylinder, and a rotating shaft connected to one end of the clamping arm is provided on the rotary driving end thereof.

[0022] As a preferred implementation option, preferably, the rotary driver in this solution is fixedly connected to the upper end surface of the support plate via a connecting seat.

[0023] As a preferred implementation option, preferably, in this solution, elastic pads are further provided on the opposite sides between the pair of clamp arms, and when the pair of clamp arms are in a clamping state, the elastic pads are in contact with the workpiece to be welded.

[0024] Based on the above, the present scheme also provides an oil collector welding device, which includes the welding fixture mentioned above, the workpiece to be welded is an oil collector, which includes a first shell and a second shell to be welded together, the first shell is placed on the upper end of the support assembly, the second shell is placed on the upper end of the first shell and fits therewith, and a pair of the clamp assemblies are used to clamp the two ends of the second shell.

[0025] By adopting the above-mentioned technical scheme, the utility model has the following beneficial effects compared with the prior art: this scheme arranges a pair of clamp assemblies on both sides of the support assembly, and realizes clamping of both sides of the oil collector by switching the operation of the pair of clamp assemblies, so that when welding one side of the oil collector, the two ends of the other side of the oil collector are clamped by the clamp assembly on the other side, thereby providing sufficient operating space for the welding work; when the other side needs to be welded, it is clamped by the clamp assembly on one side to realize the conversion of the operating space, which greatly facilitates and flexibly welds the oil collector; the device of this scheme can be used to provide welding auxiliary clamping for the oil collector in the automated welding production line, which actively promotes the improvement of the production efficiency of the oil collector, and at the same time, in terms of assisting the clamping of the welding workpiece, it reduces the labor occupation of highly repetitive processes, and does not require excessive manual intervention, which saves manpower and helps to shorten the production cycle, increase output and optimize production costs, as well as improve production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a three-dimensional perspective schematic diagram of a simplified implementation structure of the present solution, which shows a schematic diagram when no workpiece to be welded is placed on the support assembly;

[0028] Figure 2 It is a three-dimensional perspective schematic diagram of a simplified implementation structure of the present invention, which shows a schematic diagram of a workpiece to be welded placed on a support assembly;

[0029] Figure 3 It is a schematic diagram that an elastic pad is provided on the clamping arm of the present solution. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1 or Figure 2 As shown, this embodiment provides a welding fixture, which includes:

[0032] A support assembly 1, the upper end of which is used to support a workpiece 3 to be welded;

[0033] The clamp assembly 2 is a pair and is relatively arranged on both sides of the support assembly. The pair of clamp assemblies 2 and the workpiece 3 to be welded have a first state and a second state that cooperate with each other.

[0034] In the first state, the workpiece 3 to be welded is placed on the upper end of the support assembly 1, and one of the clamp assemblies 2 in the pair of clamp assemblies 2 clamps and constrains the workpiece 3 to be welded at both ends from one side of the workpiece 3 to be welded, so that the other side of the workpiece 3 to be welded serves as a welding operation area;

[0035] In the second state, the workpiece 3 to be welded is placed on the upper end of the support assembly 1, and the other clamp assembly 2 of the pair of clamp assemblies 2 clamps the workpiece 3 to be welded at both ends from the other side, so that one side of the workpiece 3 to be welded serves as the welding operation area.

[0036] In this embodiment, the workpiece 3 to be welded can be an oil collector, which includes a first shell 31 and a second shell 32 to be welded together, the first shell 31 is placed on the upper end of the support assembly 1, and the second shell 32 is placed on the upper end of the first shell 32 and fits therewith, and a pair of the clamp assemblies 2 are used to clamp the two ends of the second shell 32.

[0037] The support assembly 1 described in this solution includes:

[0038] The first base 11 is a plate-shaped structure;

[0039] The support frame 12 has a U-shaped cross-section and is arranged on the upper end surface of the first base 11. The upper end of the support frame 12 is used to place and vertically support the workpiece 3 to be welded. One side of the upper end of the support frame 12 is provided with a protrusion 121 for limiting the lateral movement of the workpiece 3 to be welded; when the first shell 31 is placed on the upper end of the support assembly 1, one side of it is in contact with the protrusion 121 to avoid lateral movement and other problems during welding.

[0040] During welding, the temperature of the workpiece 3 to be welded will increase. In order to prevent the first shell 31 and the second shell 32 from being heated and displaced or deformed due to the temperature increase of the welded workpiece 3, as a better implementation option, preferably, the support frame 12 described in this scheme is formed of metal material. The support frame 12 formed of metal material helps to conduct heat during welding and provide assistance for the heat dissipation of the workpiece 3 to be welded. In addition, the upper end of the support frame 12 has a U-shaped support portion for placing and vertically supporting the workpiece to be welded, that is, a U-shaped support surface is formed to support the first shell 31, thereby improving its placement stability.

[0041] In the implementation structure of the clamp assembly 2, as a preferred implementation option, preferably, the clamp assembly 2 described in this solution includes:

[0042] A second base 21 is disposed on one side of the support assembly 1, and a pair of second bases 21 of the clamps 2 are respectively located on both sides of the first base 11 of the support assembly 1;

[0043] The support plate 22 is fixedly disposed above the second base 21 through the support column 211;

[0044] A pair of rotary drivers 232 are arranged opposite to each other on the upper end surface of the support plate 22, and the rotary drivers 232 have a rotary driving end;

[0045] The clamping arms 233 are a pair and correspond one to one with the rotation driver 232, and one end is connected to the rotation driving end of the rotation driver 232, and the other end of the clamping arm 233 is driven by the rotation driving end of the rotation driver 232 to move in a direction approaching or away from the support component 1, wherein the pair of clamping arms 233 have a clamping state and a loose state that cooperate with each other.

[0046] In the clamping state, the pair of clamping arms 233 are driven by their corresponding rotation drivers 232 to move in a direction close to the support assembly 1, so that a clamping area for clamping the two ends of the workpiece 3 to be welded is formed between the other ends of the pair of clamping arms 233. When the workpiece 3 to be welded is placed on the support assembly 1, it is located in the clamping area;

[0047] In the loose state, the pair of clamping arms 233 are driven by their corresponding rotary drivers 232 to move in a direction away from the supporting assembly 1, so that the workpiece 3 to be welded in the clamping area is released from the clamping.

[0048] In the specific selection of the rotary driver 232, as a preferred implementation option, preferably, the rotary driver described in this scheme is a rotary cylinder or a rotary electric cylinder, and a rotating shaft connected to one end of the clamping arm 233 is provided on its rotary driving end.

[0049] In addition, in order to facilitate installation, the rotary driver in this solution is fixedly connected to the upper end surface of the support plate 22 via a connecting seat 231 .

[0050] In this solution, the connecting seat 231, the rotating driver 232 and the clamping arm 233 can be installed and used as a clamp assembly 23, and the clamping arm 233 of the clamp assembly 23 can be in a loose state as the initial state.

[0051] By adopting the above-mentioned scheme, when the welding fixture is in use, a pair of clamp arms of the clamp assembly 2 are in a loose state, and then the first shell 31 and the second shell 32 of the oil collector to be welded are placed on the support frame 12 of the support assembly 1, so that the side of the first shell 31 is abutted or attached to the protrusion 121, and then the clamp assembly 23 of one of the clamp assemblies 2 is started, so that its pair of clamp arms 233 are driven by the corresponding rotation driver 232 to rotate, clamping the two ends of one side of the second shell 32, so that the other side of the workpiece 3 (oil collector) to be welded is used as the welding operation area; at this time, the first shell 31 and the second shell 32 remain relatively fixed, and then welding can be carried out, and the welding can be operated by an external welding robot arm or other forms of welding robots, and the welding robot arm and robot are prior art, which are not the focus of this scheme, so their working principles are not described here.

[0052] When the welding of one side of the first shell 31 and the second shell 32 of the oil collector is completed, the clamp assembly 23 of the clamp assembly 2 can be switched to a loose state, and then the clamp assembly 23 of the other clamp assembly 2 is started, so that its pair of clamp arms 233 are driven by the corresponding rotation driver 232 to rotate, clamping the two ends of the other side of the second shell 32, so that one side of the workpiece 3 (oil collector) to be welded is used as a welding operation area; at this time, the welding can be operated by an external welding robot arm or other forms of welding robots.

[0053] After welding is completed on both sides of the oil collector, the pair of clamp assemblies 2 are switched to a loose state, and the welded oil collector can be removed.

[0054] In order to prevent the clamping arms 233 from causing clamping marks or wear on the outer wall of the workpiece 3 to be welded, in the present embodiment, elastic pads 234 can be provided on the opposite sides between the pair of clamping arms 233 to provide protection. When the pair of clamping arms 233 are in a clamping state, the elastic pads 234 are in contact with the workpiece 3 to be welded.

[0055] The welding fixture of this solution can be used to clamp the workpiece during the welding process of the oil collector, which greatly reduces the manpower occupation in the high-repetitive work links during welding and reduces the potential dangers of the operator during the welding process. This helps to improve the safety of the working environment; at the same time, the welding fixture is used to ensure the correct positioning and stability of the workpiece. When it is used in the welding production of the automated oil collector welding device, it can reduce welding defects, reduce scrap rates, and save time and material costs. In addition, by controlling the welding parameters and positions with higher precision (compared to fixed manpower), highly repeatable welding can be achieved to ensure the consistent quality of each workpiece.

[0056] The above descriptions are only some embodiments of the present invention, and do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A welding fixture, characterized in that: It includes: A support assembly, the upper end of which is used to support the workpiece to be welded; A pair of clamp assemblies are arranged on both sides of the support assembly, and the pair of clamp assemblies and the workpieces to be welded have a first state and a second state that cooperate with each other; In the first state, the workpiece to be welded is placed on the upper end of the support assembly, and one of the pair of clamp assemblies clamps and constrains the workpiece to be welded at both ends from one side of the workpiece to be welded, so that the other side of the workpiece to be welded serves as a welding operation area; In the second state, the workpiece to be welded is placed on the upper end of the support assembly, and the other clamp assembly in the pair of clamp assemblies clamps and constrains the workpiece to be welded at both ends from the other side of the workpiece to be welded, so that one side of the workpiece to be welded serves as the welding operation area.

2. The welding fixture according to claim 1, characterized in that: The support assembly comprises: The first base is a plate-like structure; The support frame has a U-shaped cross section and is arranged on the upper end surface of the first base. The upper end of the support frame is used to place and vertically support the workpiece to be welded. One side of the upper end of the support frame is provided with a protrusion for limiting the lateral movement of the workpiece to be welded.

3. The welding fixture according to claim 2, characterized in that: The support frame is formed of metal material, and its upper end is provided with a U-shaped support portion for placing and vertically supporting the workpiece to be welded.

4. The welding fixture according to any one of claims 1 to 3, characterized in that: The clamp assembly comprises: A second base, disposed on one side of the support assembly; A support plate, fixedly arranged above the second base through a support column; A pair of rotary drivers are arranged opposite to each other on the upper end surface of the support plate, and the rotary drivers have a rotary driving end; The clamping arms are a pair and correspond to the rotary drive one by one, and one end of the clamping arms is connected to the rotary drive end of the rotary drive, and the rotary drive end of the rotary drive drives the other end of the clamping arms to move in a direction close to or away from the support assembly, wherein the pair of clamping arms have a mutually matched clamping state and a loosening state. In the clamping state, the pair of clamp arms are driven by their corresponding rotary drivers to move in a direction close to the support assembly, so that a clamping area for clamping the two ends of the workpiece to be welded is formed between the other ends of the pair of clamp arms, and when the workpiece to be welded is placed on the support assembly, it is located in the clamping area; In the loose state, the pair of clamping arms are driven by their corresponding rotary drivers to move in a direction away from the supporting assembly, so that the workpiece to be welded in the clamping area is released from the clamping.

5. The welding fixture according to claim 4, characterized in that: The rotary driver is a rotary cylinder or a rotary electric cylinder, and a rotary shaft connected to one end of the clamping arm is provided on the rotary driving end thereof.

6. The welding fixture according to claim 4, characterized in that: The rotary driver is fixedly connected to the upper end surface of the support plate via a connecting seat.

7. The welding fixture according to claim 4, characterized in that: Elastic pads are also provided on the opposite sides between the pair of clamp arms. When the pair of clamp arms are in a clamping state, the elastic pads are in contact with the workpiece to be welded.

8. Oil collector welding device, characterized in that: It includes the welding fixture as described in one of claims 1 to 7, the workpiece to be welded is an oil collector, which includes a first shell and a second shell to be welded together, the first shell is placed on the upper end of the support assembly, the second shell is placed on the upper end of the first shell and fits therewith, and a pair of the clamp assemblies are used to clamp the two ends of the second shell.

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