Tool for welding connecting pieces on inner side and outer side of end part of angle steel component
Through the tooling design of supporting fixtures and positioning seats and lifting positioning components, the structure and cost problems of existing tooling in the welding of angle steel components are solved, and efficient and accurate welding effects are achieved.
Patent Information
- Application Number
- CN202510520296.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-07-22
AI Technical Summary
The existing tooling for welding connectors on the inner and outer ends of angle steel members has shortcomings in terms of simplicity of structure, cost, simplicity of operation, scope of application and welding quality, and cannot take into account the performance advantages at the same time.
The tool design includes support fixing devices, end positioning seats, inner and outer positioning devices is adopted, and the lift positioning components and lift drive components are used to achieve accurate positioning and fit between the inner and outer connectors and angle steel to ensure welding quality.
It achieves simple and compact structure, low cost and easy operation, improves welding position accuracy and welding quality, and expands the scope of application and flexibility of use.
Smart Images
Figure CN120347456A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of welding tooling, and particularly relates to a tooling for welding connectors on the inner and outer sides of the end of an angle steel member. Background Art
[0002] Angle steel members are commonly used members in the manufacturing of engineering machinery and equipment, such as the standard sections of tower crane fish plates. It is common to weld connectors (for example, connecting plates) on the inner surface and the outer surface of one end of the angle steel respectively. In the process of mass production of such angle steel members, professional tooling is required to make the connectors fit and locate with the inner and outer surfaces of the angle steel to assist in welding quickly and efficiently. At present, there are many structural forms of tooling for welding connectors on the inner and outer sides of the end of angle steel members, but each has its own disadvantages. Generally speaking, the existing tooling still has deficiencies in terms of simple and compact structure, cost, ease of operation, scope of application and flexibility of use, welding quality, etc., especially it is impossible to simultaneously possess the above performance advantages. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the deficiencies existing in the prior art, and provide a tooling for welding connectors on the inner and outer sides of the end of an angle steel member, which has a simple and compact structure, low cost, easy operation, and can improve the accuracy of the welding position and the welding quality.
[0004] The present invention adopts the following technical solutions:
[0005] A tooling for welding connecting pieces on the inner and outer sides of the end of an angle steel member, including a base. On the base, there are a support and fixation device for supporting and fixing the angle steel, an end positioning seat for abutting against the end of the angle steel for positioning, an inner part positioning device for supporting and positioning the inner connecting piece connected to the inner side of the angle steel, and an outer part positioning device for pressing and fitting the outer connecting piece connected to the outer side of the angle steel against the outer surface of the angle steel. The inner part positioning device includes a lifting and positioning assembly for installing and positioning the inner connecting piece and a lifting driving assembly. The lifting driving assembly is connected to the lifting and positioning assembly and can drive the lifting and positioning assembly to move up and down so that the inner connecting piece on the lifting and positioning assembly closely adheres to and disengages from the angle steel whose end abuts against the end positioning seat; during operation, the inner connecting piece is supported and positioned on the lifting and positioning assembly of the inner part positioning device, the angle steel is supported and fixed on the support and fixation device and one end of the angle steel abuts against the end positioning seat to form a position. After that, the lifting driving assembly is used to drive the lifting and positioning assembly to move upward so that the inner connecting piece on the lifting and positioning assembly closely adheres to the inner side of the angle steel, that is, the relative position of the inner connecting piece and the angle steel is fixed. Then, the outer part positioning device is used to press and fit the outer connecting piece against the outer surface of the angle steel to complete the relative position fixation of the outer connecting piece and the angle steel, and then the welding operation can be carried out, which can ensure that the inner connecting piece closely adheres to the angle steel, guarantee the accuracy of the welding position and the welding quality. At the same time, only the lifting and positioning assembly and the lifting driving assembly are used to drive the inner connecting piece to move and adhere to the angle steel, which has the advantages of simple and compact structure, low cost and convenient operation.
[0006] Preferably, the lifting driving assembly drives the lifting and positioning assembly to move upward so that the inner connecting piece on the lifting and positioning assembly closely adheres to the inner side of the angle steel, and the outer part positioning device presses and fits the outer connecting piece against the outer surface of the angle steel, which is not only convenient for the positioning and welding of the inner connecting piece and the outer connecting piece, but also can fix the angle steel through the static friction force of the inner connecting piece and the outer connecting piece to prevent the angle steel from moving.
[0007] Preferably, the support and fixation device includes a plurality of support rollers for supporting the inner side of the angle steel. The plurality of support rollers are arranged at intervals in sequence and allow the supported angle steel to move. The support and fixation device also includes a pressing component for cooperating with the support rollers to clamp and fix the angle steel; on the one hand, the angle steel can be placed on the support rollers at a position far from the end positioning seat, the operation space is large, and the support rollers and the inner connecting piece can be installed at different positions at the same time, which is beneficial to improving the efficiency; on the other hand, after the angle steel is placed on the support rollers and then moved to abut against the end positioning seat for positioning, the accurate positioning of the angle steel can be ensured.
[0008] Preferably, the supporting roller is mounted on the lifting drive mechanism and can be driven by the lifting drive mechanism to move up and down; the end positioning seat is provided with a positioning block that abuts against the outer side surface of the end of the angle steel to form positioning when the angle steel moves upward and disengages from the outer side surface of the end of the angle steel when the angle steel moves downward; the positioning of the end of the angle steel by the positioning block can ensure the position accuracy of the end of the angle steel, and thus ensure the welding position accuracy and improve the welding quality; moreover, in cooperation with the way that the supporting roller can support the movement of the angle steel, it will not affect the installation of the angle steel.
[0009] Preferably, the pressing assembly is a fixed pressing member fixedly arranged above the supporting roller, and when the supporting roller supports the angle steel to rise, the pressing assembly cooperates with the supporting roller to clamp and fix the angle steel; or the pressing assembly is connected to the cylinder, and when the supporting roller supports the angle steel to rise, the pressing assembly moves downward under the drive of the cylinder to cooperate with the supporting roller to clamp and fix the angle steel.
[0010] Preferably, the lifting and positioning assembly includes an inner part support seat. The inner part support seat is provided with a first positioning head for inserting into a circular hole preset on the inner connecting member to position the inner connecting member and a first anti-rotation mechanism for preventing the inner connecting member from rotating around the first positioning head; placing the inner connecting member on the inner part support seat, inserting the first positioning head into the circular hole preset on the inner connecting member, and cooperating with the first anti-rotation mechanism to prevent the inner connecting member from rotating around the first positioning head can position the inner connecting member on the inner part support seat.
[0011] Preferably, the first anti-rotation mechanism includes a support column for supporting the inner connecting member. The support column is arranged at an interval from the inner part support seat along the length direction of the angle steel. By using adjustable pads to assist the inner part support seat for support, the size of the inner part support seat can be greatly reduced, the structural compactness can be improved, and the cost can be reduced.
[0012] Preferably, an adjustable pad for supporting the inner connecting member is detachably mounted on the inner part support seat, which is convenient for replacing adjustable pads with different thicknesses, shapes and sizes to use inner connecting members of different specifications, improving the scope of application and flexibility of use; the first positioning head is detachably mounted on the inner part support seat, which is convenient for replacing different first positioning heads to adapt to inner connecting members with circular holes of different size specifications.
[0013] Preferably, the outer component positioning device includes an outer component support seat and a pressing and positioning assembly for pressing and positioning the outer connecting piece on the outer component support seat; the pressing and positioning assembly includes a pressing head and a pressing drive mechanism for driving the pressing head to reciprocate to press and position the outer connecting piece on the outer component support seat and away from the outer component support seat. The pressing head is provided with a second positioning head for inserting into a circular hole preset on the outer connecting piece to position the outer connecting piece and a second anti-rotation mechanism for preventing the outer connecting piece from rotating around the second positioning head. When positioning the outer connecting piece, the circular hole on the outer connecting piece is sleeved on the second positioning head, and the angular attitude of the outer connecting piece is positioned by using the second positioning head and the second anti-rotation mechanism. Only need to manually operate to keep the circular hole on the outer connecting piece sleeved on the second positioning head, and use the pressing and positioning assembly to press and position the outer connecting piece on the outer component support seat, which can reduce the difficulty of manual operation.
[0014] Preferably, the second anti-rotation mechanism includes a supporting block connected to the pressing head. The supporting block has a supporting inclined surface for supporting the outer connecting piece. Using the supporting block to support the outer connecting piece can prevent the outer connecting piece from rotating around the second positioning head. Its structure is simple and compact, with low cost, and the supporting inclined surface of the supporting block can automatically adjust the rotation angle of the outer connecting piece around the second positioning head during the pressing process, playing an automatic correction role to ensure stable and reliable pressing and accurate position of the outer connecting piece.
[0015] Preferably, the outer component support seat is provided with a supporting and guiding block for supporting the outer connecting piece and guiding the outer connecting piece to abut against the outer component support seat. During the pressing process after the circular hole on the outer connecting piece is sleeved on the second positioning head, before the pressing head completely presses the outer connecting piece, the outer connecting piece is supported by the supporting and guiding block and guided by the supporting and guiding block to abut against the outer component support seat. This process does not require manual operation to hold the outer connecting piece, which can avoid mechanical injury during the pressing process.
[0016] Compared with the prior art, the present invention has the following advantages: For the tooling for welding connecting pieces on the inner and outer sides of the end of an angle steel member, during operation, the inner connecting piece is supported and positioned on the lifting and positioning assembly of the inner component positioning device. After the angle steel is supported and fixed on the support and fixing device and one end of the angle steel abuts against the end positioning seat to form a position, the lifting and positioning assembly is driven to move upward by the lifting drive assembly so that the inner connecting piece on the lifting and positioning assembly closely adheres to the inner side surface of the angle steel, that is, the relative position of the inner connecting piece and the angle steel is fixed. Then, the outer component positioning device is used to press and fit the outer connecting piece on the outer surface of the angle steel to complete the relative position fixing of the outer connecting piece and the angle steel, and then welding operation can be carried out, which can ensure that the inner connecting piece is closely adhered to the angle steel, guarantee the accuracy of the welding position and the welding quality. At the same time, only using the lifting and positioning assembly and the lifting drive assembly to drive the inner connecting piece to move and adhere to the angle steel has the advantages of simple and compact structure, low cost and convenient operation. Description of the Drawings
[0017] Figure 1 It is a three-dimensional structure schematic diagram of the tooling in the unclamped state.
[0018] Figure 2 It is Figure 1 a partially enlarged structure schematic diagram of the end positioning seat in
[0019] Figure 3 a top view structure schematic diagram of the tooling in the unclamped state.
[0020] Figure 4 It is a three-dimensional structure schematic diagram of the tooling when the inner connecting piece is installed.
[0021] Figure 5 It is Figure 4 a partially enlarged structure schematic diagram of the end positioning seat in
[0022] Figure 6 a top view structure schematic diagram of the tooling when the inner connecting piece is installed.
[0023] Figure 7 It is a three-dimensional structure schematic diagram of the tooling when clamping is completed.
[0024] Figure 8 It is Figure 7 a partially enlarged structure schematic diagram of the end positioning seat in
[0025] Figure 9 a top view structure schematic diagram of the tooling when clamping is completed.
[0026] In the figure, there are base 1, support and fixing device 2, support roller 2-1, pressing component 2-2, end positioning seat 3, positioning block 3-1, inner part positioning device 4, lifting positioning component 4-1, inner part support seat 4-1-1, first positioning head 4-1-2, support column 4-1-3, adjustable cushion block 4-1-4, lifting drive component 4-2, outer part positioning device 5, outer part support seat 5-1, pressing and positioning component 5-2, pressing head 5-2-1, and supporting block 5-2-2. Specific embodiments
[0027] For the convenience of understanding the technical solution of the present invention, the following is a detailed description in combination with the accompanying drawings and specific embodiments.
[0028] Embodiment 1
[0029] As Figures 1-9As shown in the figure, a tooling for welding connecting pieces on the inner and outer sides of the end of an angle steel member includes a base 1. On the base 1, there are provided a support and fixation device 2 for supporting and fixing the angle steel, an end positioning seat 3 for abutting against the end of the angle steel for positioning, an inner part positioning device 4 for supporting and positioning the inner connecting piece connected to the inner side of the angle steel, and an outer part positioning device 5 for pressing and fitting the outer connecting piece connected to the outer side of the angle steel against the outer surface of the angle steel. The inner part positioning device 4 includes a lifting and positioning assembly 4-1 for installing and positioning the inner connecting piece and a lifting drive assembly 4-2. The lifting drive assembly 4-2 is connected to the lifting and positioning assembly 4-1 and can drive the lifting and positioning assembly 4-1 to move up and down so that the inner connecting piece on the lifting and positioning assembly 4-1 closely adheres to and disengages from the angle steel whose end abuts against the end positioning seat 3.
[0030] During operation, the inner connecting piece is supported and positioned on the lifting and positioning assembly 4-1 of the inner part positioning device 4. After the angle steel is supported and fixed on the support and fixation device 4 and one end of the angle steel abuts against the end positioning seat 3 to form a position, the lifting drive assembly 4-2 is used to drive the lifting and positioning assembly 4-1 to move upward so that the inner connecting piece on the lifting and positioning assembly 4-1 closely adheres to the inner side of the angle steel, and the relative position fixation between the inner connecting piece and the angle steel can be completed. Then, the outer part positioning device 5 is used to press and fit the outer connecting piece against the outer surface of the angle steel to complete the relative position fixation between the outer connecting piece and the angle steel, and then the welding operation can be carried out. It can ensure that the inner connecting piece is closely adhered to the angle steel, guarantee the accuracy of the welding position and the welding quality. At the same time, only the lifting and positioning assembly 4-1 and the lifting drive assembly 4-2 are used to drive the inner connecting piece to move and adhere to the angle steel, which has the advantages of simple and compact structure, low cost and convenient operation.
[0031] The lifting drive assembly 4-2 drives the lifting and positioning assembly 4-1 to move upward so that the inner connecting piece on the lifting and positioning assembly 4-1 closely adheres to the inner side of the angle steel, and the outer part positioning device 5 presses and fits the outer connecting piece against the outer surface of the angle steel, which is convenient for the positioning and welding of the inner connecting piece and the outer connecting piece. At the same time, the angle steel can also be fixed by the static friction force of the inner connecting piece and the outer connecting piece to prevent the angle steel from moving.
[0032] The support and fixation device 2 includes a plurality of support rollers 2-1 for supporting the inner side of the angle steel. The plurality of support rollers 2-1 are arranged at intervals in sequence and allow the supported angle steel to move. The support and fixation device 2 further includes a pressing assembly 2-2 for cooperating with the support rollers 2-1 to clamp and fix the angle steel. On the one hand, the angle steel can be placed on the support rollers at a position far from the end positioning seat, with a large operating space, and the support rollers and the inner connecting piece can be installed at different positions at the same time, which is beneficial to improving the efficiency. On the other hand, after the angle steel is placed on the support rollers and then moved to abut against the end positioning seat for positioning, the accurate positioning of the angle steel can be ensured.
[0033] In this embodiment, the middle of the support roller 2-1 has a depression, and annular protrusions are formed on both sides. The two annular protrusions respectively abut against the vertical surfaces on the inner side of the angle steel. The pressing assembly 2-2 is an L-shaped structural pressing plate that fits the outer surface of the angle steel.
[0034] The support roller 2-1 is installed on the lifting drive mechanism and can be driven by the lifting drive mechanism to move up and down; a positioning block 3-1 is provided on the end positioning seat 3, which abuts against the outer side surface of the end of the angle steel to form a positioning when the angle steel moves upward, and disengages from the outer side surface of the end of the angle steel when the angle steel moves downward; positioning the end of the angle steel by using the positioning block 3-1 can ensure the position accuracy of the end of the angle steel, and further ensure the welding position accuracy and improve the welding quality; moreover, in cooperation with the way that the support roller 2-1 can support the movement of the angle steel, it will not affect the installation of the angle steel.
[0035] In this embodiment, the positioning block 3-1 includes two positioning heads located at one end of the positioning block 3-1, and the two positioning heads respectively abut against the two vertical surfaces on the outer side of the angle steel.
[0036] The pressing assembly 2-2 is a fixed pressing member fixedly arranged above the support roller 2-1, and when the support roller 2-1 supports the angle steel to rise, the pressing assembly 2-2 cooperates with the support roller 2-1 to clamp and fix the angle steel; or the pressing assembly 2-2 is connected to a cylinder, and when the support roller 2-1 supports the angle steel to rise, the pressing assembly 2-2 moves downward under the drive of the cylinder to cooperate with the support roller 2-1 to clamp and fix the angle steel.
[0037] The lifting and positioning assembly 4-1 includes an inner part support seat 4-1-1. A first positioning head 4-1-2 for inserting into a circular hole preset on the inner side connector to position the inner side connector and a first anti-rotation mechanism for preventing the inner side connector from rotating around the first positioning head 4-1-2 are provided on the inner part support seat 4-1-1; placing the inner side connector on the inner part support seat 4-1-1, inserting the first positioning head 4-1-2 into the circular hole preset on the inner side connector, and cooperating with the first anti-rotation mechanism to prevent the inner side connector from rotating around the first positioning head 4-1-2, the inner side connector can be positioned on the inner part support seat. The lifting and positioning assembly 4-1 has the advantages of simple and compact structure, low cost and easy installation.
[0038] The first anti-rotation mechanism includes a support column 4-1-3 for supporting the inner side connector. The support column 4-1-3 is arranged at an interval from the inner part support seat 4-1-1 along the length direction of the angle steel. By using an adjustable spacer 4-1-4 to assist the inner part support seat 4-1-1 for support, the size of the inner part support seat can be greatly reduced, the structural compactness can be improved, and the cost can be reduced.
[0039] An adjustable cushion block 4-1-4 for supporting the inner connecting member is detachably mounted on the inner member support base 4-1-1, facilitating the replacement of adjustable cushion blocks 4-1-4 with different thicknesses, shapes and sizes to suit inner connecting members of different specifications, thereby improving the scope of application and flexibility of use. The first positioning head 4-1-2 is detachably mounted on the inner member support base 4-1-1, facilitating the replacement of different first positioning heads 4-1-2 to adapt to inner connecting members with round holes of different dimensional specifications. Specifically, the adjustable cushion block 4-1-4 and the first positioning head 4-1-2 can be mounted on the inner member support base 4-1-1 by screws.
[0040] The outer member positioning device 5 includes an outer member support base 5-1 and a pressing and positioning assembly 5-2 for pressing and positioning the outer connecting member on the outer member support base 5-1. The pressing and positioning assembly 5-2 includes a pressing head 5-2-1 and a pressing drive mechanism for driving the pressing head 5-2-1 to reciprocate to press and position the outer connecting member on the outer member support base 5-1 and move away from the outer member support base 5-1. The pressing head 5-2-1 is provided with a second positioning head for inserting into a round hole preset on the outer connecting member to position the outer connecting member and a second anti-rotation mechanism for preventing the outer connecting member from rotating around the second positioning head. When positioning the outer connecting member, the round hole on the outer connecting member is sleeved on the second positioning head, and the angle and attitude of the outer connecting member are positioned by the second positioning head and the second anti-rotation mechanism. It only requires manual operation to keep the round hole on the outer connecting member sleeved on the second positioning head, and then the outer connecting member can be pressed and positioned on the outer member support base by the pressing and positioning assembly, which can reduce the difficulty of manual operation.
[0041] In this embodiment, the end positioning seat 3 can directly serve as the outer member support base 5-1, that is, the end positioning seat 3 and the outer member support base 5-1 can be the same component, which improves the structural compactness, saves costs, and is beneficial to improving the positioning accuracy and welding quality. In other embodiments, the outer member support base 5-1 can also be an independent component relative to the end positioning seat 3.
[0042] The second anti-rotation mechanism includes a support block 5-2-2 connected to the pressing head 5-2-1. The support block 5-2-2 has a supporting inclined surface for supporting the outer connecting member. Using the support block 5-2-2 to support the outer connecting member can prevent the outer connecting member from rotating around the second positioning head. Its structure is simple and compact, with low cost, and the supporting inclined surface of the support block 5-2-2 can automatically adjust the rotation angle of the outer connecting member around the second positioning head during the pressing process, playing an automatic correction role to ensure stable and reliable pressing and accurate position of the outer connecting member.
[0043] The outer part support base 5-1 is provided with a supporting and guiding block for holding the outer connecting piece and guiding the outer connecting piece to abut against the outer part support base 5-1. During the process of pressing the round hole on the outer connecting piece onto the second positioning head, before the pressing head 5-2-1 completely presses the outer connecting piece, the outer connecting piece is held by the supporting and guiding block and guided by the supporting and guiding block to abut against the outer part support base. This process does not require manual operation to hold the outer connecting piece, which can avoid mechanical injury during the pressing process.
[0044] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is subject to the scope defined by the claims. Several improvements and refinements made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A tooling for welding connecting pieces on the inner and outer sides of the end of an angle steel member, characterized in that It includes a base (1), on which there are a support and fixation device (2) for supporting and fixing an angle steel, an end positioning seat (3) for abutting against the end of the angle steel for positioning, an inner part positioning device (4) for supporting and positioning an inner connector connected to the inner side of the angle steel, and an outer part positioning device (5) for pressing and fitting an outer connector connected to the outer side of the angle steel against the outer surface of the angle steel. The inner part positioning device (4) includes a lifting and positioning assembly (4-1) and a lifting drive assembly (4-2) for installing and positioning the inner connector. The lifting drive assembly (4-2) is connected to the lifting and positioning assembly (4-1) and can drive the lifting and positioning assembly (4-1) to move up and down so that the inner connector on the lifting and positioning assembly (4-1) closely adheres to and disengages from the angle steel whose end abuts against the end positioning seat (3).
2. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 1, characterized in that, The lifting drive assembly (4-2) drives the lifting and positioning assembly (4-1) to move upward, making the inner connector on the lifting and positioning assembly (4-1) closely adhere to the inner side of the angle steel, and the outer part positioning device (5) presses and fits the outer connector against the outer surface of the angle steel.
3. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 1, wherein, The support and fixation device (2) includes a plurality of support rollers (2-1) for supporting the inner side of the angle steel. The plurality of support rollers (2-1) are arranged at intervals in sequence and allow the supported angle steel to move. The support and fixation device (2) further includes a pressing assembly (2-2) for cooperating with the support rollers (2-1) to clamp and fix the angle steel.
4. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 3, characterized in that, The support rollers (2-1) are installed on a lifting drive mechanism and can be driven by the lifting drive mechanism to move up and down; the end positioning seat (3) is provided with a positioning block (3-1) that abuts against the outer side of the end of the angle steel to form a positioning when the angle steel moves upward and disengages from the outer side of the end of the angle steel when the angle steel moves downward.
5. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 4, characterized in that, The pressing assembly (2-2) is a fixed pressing member fixedly arranged above the support rollers (2-1). When the support rollers (2-1) support the angle steel to rise, the pressing assembly (2-2) cooperates with the support rollers (2-1) to clamp and fix the angle steel; or the pressing assembly (2-2) is connected to a cylinder, and when the support rollers (2-1) support the angle steel to rise, the pressing assembly (2-2) moves downward under the drive of the cylinder to cooperate with the support rollers (2-1) to clamp and fix the angle steel.
6. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 1, wherein, The lifting and positioning assembly (4-1) includes an inner part support seat (4-1-1). The inner part support seat (4-1-1) is provided with a first positioning head (4-1-2) for inserting into a circular hole preset on the inner connector to position the inner connector and a first anti-rotation mechanism for preventing the inner connector from rotating around the first positioning head (4-1-2).
7. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 6, wherein, The first anti-rotation mechanism includes a support column (4-1-3) for supporting the inner connector. The support column (4-1-3) is arranged at an interval from the inner part support seat (4-1-1) along the length direction of the angle steel.
8. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 6, characterized in that, An adjustable spacer block (4-1-4) for supporting the inner connector is detachably installed on the inner part support seat (4-1-1).
9. The tooling for welding connecting members on the inner and outer sides of the end of an angle steel member according to claim 1, characterized in that, The outer part positioning device (5) includes an outer part support base (5-1) and a pressing and positioning assembly (5-2) for pressing and positioning the outer connecting piece on the outer part support base (5-1); the pressing and positioning assembly (5-2) includes a pressing head (5-2-1) and a pressing drive mechanism for driving the pressing head (5-2-1) to reciprocate to press and position the outer connecting piece on the outer part support base (5-1) and away from the outer part support base (5-1). A second positioning head for inserting into a circular hole preset on the outer connecting piece to position the outer connecting piece and a second anti-rotation mechanism for preventing the outer connecting piece from rotating around the second positioning head are provided on the pressing head (5-2-1).
10. The tooling for welding connectors on the inner and outer sides of the end of an angle steel member according to claim 9, wherein The second anti-rotation mechanism includes a supporting block (5-2-2) connected to the pressing head (5-2-1), and the supporting block (5-2-2) has a supporting inclined surface for supporting the outer connecting piece; a supporting and guiding block for supporting the outer connecting piece and guiding the outer connecting piece to abut against the outer part support base (5-1) is provided on the outer part support base (5-1).