Welding notch grinding equipment for steel structure manufacturing

Abstract

The invention relates to the technical field of steel structure machining, in particular to welding notch grinding equipment for steel structure manufacturing. Comprising a fixing frame, a fixing clamp and a grinding mechanism, a stabilizing assembly is arranged on the fixing clamp and comprises a supporting piece and a pressure maintaining piece, the grinding mechanism is provided with a movable frame and a grinding head arranged on the movable frame, and an alignment pressing rod capable of acting on the pressure maintaining piece along with movement of the movable frame is arranged on the movable frame. And the fixing frame is provided with an alignment channel through which the alignment pressing rod can penetrate to guide the grinding head to vertically apply pressure to the notch surface of the steel structure. The two supporting pieces are combined with the pressure provided by the corresponding first springs, so that each supporting piece is tightly attached to the surface of the steel structure, a stable frame structure is formed, the stability and the deformation resistance of the thin-wall or long-size I-shaped steel structure in the grinding process are improved, meanwhile, through cooperation of the alignment pressing rods and the alignment channels, the alignment accuracy is improved, and the grinding efficiency is improved. And it is ensured that the grinding head vertically and accurately applies pressure to the notch face, and the grinding flatness of the notch face is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure processing, and specifically relates to a grinding device for welding cuts in steel structure fabrication. Background Art

[0002] In the design of steel structures, different components need to be connected in various ways, and welding is a common and important connection method. To achieve high-quality welding, precise cutting of steel is required to form cuts suitable for welding. Through appropriate cut treatment and combined with welding technology, the connection strength between steel structure components can be enhanced, enabling them to withstand greater loads. Subsequently, the cut surface is polished to remove burrs, oxide layers, and uneven defects on the cutting edge. In the prior art, manual grinding or semi-automatic grinding equipment is mostly used to process welding cuts, which is difficult to meet the requirements of high-precision welding.

[0003] A steel structure fabrication welding cut processing machine and processing method with the Chinese patent authorization announcement number CN111805340B currently disclosed includes a frame, a support and fixing mechanism, a cutting mechanism, and a grinding mechanism. A placement plate is installed on the lower end surface inside the frame. Symmetrically fixed at the positions near the inner wall of the frame on the upper end surface of the placement plate are limit blocks. Clamping plates are symmetrically and slidably arranged at both ends of the placement plate. The clamping plates are connected by a fixing plate. A clamping electric slider is installed at the lower end of the fixing plate, and the clamping electric slider is slidably arranged on the placement plate. The support and fixing mechanism is arranged on the front side of the placement plate and is installed on the inner wall of the frame. The cutting mechanism and the grinding mechanism are sequentially slidably arranged on the upper end surface inside the frame from front to back.

[0004] According to the above patent, the patent initially limits and fixes the steel structure through the cooperation of the clamping electric slider and the clamping plate. Subsequently, according to the size of the steel structure, the support frame is adjusted to the working position by a bidirectional driving cylinder. The rotating motor drives the cam to rotate through the rotating shaft, and during the rotation of the cam, the fixing plate drives to further limit and fix the steel structure. However, it is difficult to achieve high-precision alignment during the grinding process, and the grinding mechanism is prone to deviation. Especially for thin-walled or long-sized I-shaped steel structures, it is easy to cause vibration or local deformation during grinding, affecting the grinding accuracy and surface quality. Therefore, there is a need for a welding cut grinding device that can ensure the stability of the steel structure grinding process and precise alignment. Summary of the Invention

[0005] In view of the problems existing in the prior art, a grinding device for welding cuts in steel structure fabrication is provided. Through the pressure provided by two support members in combination with corresponding first springs, each support member is closely attached to the surface of the steel structure, forming a stable frame structure, which improves the stability and anti-deformation ability of thin-walled or long-sized I-shaped steel structures during the grinding process. At the same time, through the cooperation of the alignment pressure rod and the alignment channel, it is ensured that the grinding head vertically and precisely presses on the cut surface, guaranteeing the grinding flatness of the cut surface.

[0006] To solve the problems of the prior art, the present invention provides a grinding device for welding cuts in steel structure fabrication, which is applied to I-shaped steel structures and includes a fixed frame, a fixed fixture provided thereon for initially positioning the steel structure, and a grinding mechanism. The fixed fixture is provided with a stabilizing component for keeping the steel structure stable during the operation of the grinding mechanism. The stabilizing component includes a support member capable of supporting the steel structure and a pressure maintaining member that cooperates with the grinding mechanism to act on the support member. The grinding mechanism has a movable frame capable of moving towards the fixed fixture direction and a grinding head provided thereon capable of moving along the cut surface of the steel structure. The movable frame is provided with an alignment pressure rod capable of moving along with it to act on the pressure maintaining member. The fixed frame is provided with an alignment channel through which the alignment pressure rod can pass to guide the grinding head to vertically press on the cut surface of the steel structure. When the grinding head moves towards the cut surface of the steel structure through the movable frame, the alignment pressure rod enters the alignment channel to make the surface of the grinding head relatively flush with the cut surface of the steel structure. At the same time, the pressure maintaining member is in a pressurized state on the support member under the action of the alignment pressure rod.

[0007] Preferably, two of the support members are symmetrically provided on the fixed frame. The support member is specifically a plate-like structure capable of closely adhering to the side of the steel structure according to its shape. Each support member has a support structure connected to the fixed frame, and a first spring is provided between each support structure and the fixed frame. When the steel structure is subjected to the pressure provided by the first spring between the two support members, the two support members form a frame structure for the overall support of the steel structure.

[0008] Preferably, the pressure maintaining member is provided at the position corresponding to each support structure on the fixed frame. Each support structure is provided with a rubber structure capable of being pressurized by the corresponding pressure maintaining member. When the pressure maintaining member gradually presses on the rubber structure, the rubber structure is in a gradually compressed state, so that the pressure on the steel structure between the two support members gradually increases.

[0009] Preferably, one alignment pressure rod is provided on the movable frame corresponding to each pressure maintaining member, and one alignment channel is provided on the fixed frame corresponding to each alignment pressure rod. The axial direction of the alignment pressure rod is perpendicular to the cut surface of the steel structure. During the process of the alignment pressure rod entering the alignment channel, the alignment pressure rod can closely move along the inner wall of the alignment channel.

[0010] Preferably, the pressure-maintaining part is a block-shaped structure, and a socket for inserting the positioning pressure rod is provided on the side of the pressure-maintaining part facing the positioning channel. When the positioning pressure rod squeezes the pressure-maintaining part by cooperating with the socket, the pressure-maintaining part is in a horizontally pushed state, so that the rubber structure is evenly pressurized.

[0011] Preferably, the side of the pressure-maintaining member facing the rubber structure has an inclined surface capable of converting the horizontal displacement of the pressure-maintaining member into a vertical pressure on the rubber structure.

[0012] Preferably, a second spring is connected between the pressure maintaining part and the fixed frame along the axial direction of the positioning pressure rod. When the positioning pressure rod applies pressure on the pressure maintaining part, the second spring is in a stretched state. When the positioning pressure rod follows the movable frame away from the steel structure, the second spring drives the pressure maintaining part to be in a gradual reset state.

[0013] Preferably, a pressure sensor for detecting the deformation degree of the second spring is provided on the fixing frame. When the pressure sensor detects through the second spring that the pressure-maintaining member has completed pressurizing the rubber structure, the grinding head is simultaneously in a state of maintaining contact with the cut surface of the steel structure.

[0014] Preferably, each supporting structure is provided with a guide rod extending outward through the fixing frame, and the fixing frame is provided with a guide opening for the guide rod to pass through, and the axial direction of the guide rod is perpendicular to the axial direction of the alignment pressure rod.

[0015] Preferably, each support member has a guide surface at one end facing the direction in which the steel structure enters, and when the two support members are in contact, a guide channel for the steel structure to enter the two support members is formed between the two guide surfaces.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses support members symmetrically on both sides of the steel structure to form an overall supporting frame structure under the pressure of the corresponding first spring, so that the two support members can closely fit the two sides of the I-shaped steel structure, effectively improving the stability and deformation resistance of the steel structure during the grinding process.

[0017] At the same time, the alignment pressure rod in the grinding mechanism cooperates with the alignment channel to ensure that the grinding head is accurately aligned and vertically presses on the cut surface, further improving the grinding accuracy. It not only solves the problem of thin-walled or long-sized I-beams being prone to vibration and deformation during processing, but also achieves high-quality and high-stability grinding of steel structure welding cuts, thereby ensuring the flatness and surface quality of the cut surface.

[0018] 2. The present invention ensures that the grinding head always maintains a vertical pressure angle when contacting the cut surface of the I-shaped steel structure through the cooperation of the alignment pressure rod and the alignment channel, thereby avoiding processing errors caused by deviation or tilt.

[0019] Meanwhile, by applying pressure to the pressure-holding part during the process of the alignment pressure bar entering the alignment channel, it prompts the pressure-holding part to push the rubber structure to produce elastic compression, uniformly transmitting the pressure to the support structure and the support member, enabling the steel structure to always be in a stable clamping state during the grinding process, and enhancing the stability during the processing of the steel structure.

[0020] 3. Through the tight fit between the alignment pressure bar and the insertion hole of the pressure-holding part in the present invention, it ensures that the pressure-holding part moves smoothly in the horizontal direction during the force application process, avoiding deflection, and improving the stability and guiding accuracy of the pressure application process.

[0021] Meanwhile, combined with the movement of the guiding rod in the moving direction of the support structure, the inclined plane provided on the pressure-holding part during its movement converts the horizontal thrust into a vertical pressure on the rubber structure, making the force on the rubber structure more uniform during the compression process and preventing local stress concentration. It effectively enhances the uniformity and reliability of the clamping force of the support member on the steel structure, and further ensures the stable positioning and processing quality of the workpiece during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of a steel structure manufacturing welding cut grinding device of the present invention.

[0023] Figure 2 is a partial plan sectional view of a steel structure manufacturing welding cut grinding device of the present invention.

[0024] Figure 3 is a partial three-dimensional structural sectional view of a steel structure manufacturing welding cut grinding device of the present invention.

[0025] Figure 4 is a three-dimensional structural schematic diagram of the steel structure, fixed fixture, and support member of a steel structure manufacturing welding cut grinding device of the present invention.

[0026] Figure 5 is a left view of the steel structure, fixed fixture, and support member of a steel structure manufacturing welding cut grinding device of the present invention.

[0027] Figure 6 is a plan sectional view of the steel structure, fixed fixture, and support member of a steel structure manufacturing welding cut grinding device of the present invention.

[0028] Figure 7 is a partial three-dimensional structural schematic diagram of the steel structure, stabilizing component, and grinding head of a steel structure manufacturing welding cut grinding device of the present invention.

[0029] Figure 8 is a partial three-dimensional structural sectional view of the steel structure, stabilizing component, and grinding head of a steel structure manufacturing welding cut grinding device of the present invention.

[0030] Figure 9 It is a plan view of a stabilizing component and a grinding mechanism of a steel structure manufacturing welding cut grinding device of the present invention.

[0031] Figure 10 It is a plan sectional view of a support member and a corresponding pressure maintaining member of a steel structure manufacturing welding cut grinding device of the present invention.

[0032] The reference numerals in the figure are: 1, steel structure; 2, fixing frame; 21, alignment channel; 3, fixing fixture; 4, grinding mechanism; 41, movable frame; 411, alignment pressing rod; 42, grinding head; 43, displacement driver; 5, support member; 51, first spring; 511, guide rod; 512, support structure; 52, rubber structure; 53, guiding channel; 6, pressure maintaining member; 61, second spring. Detailed implementation manners

[0033] In order to further understand the features, technical means and the specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0034] See Figures 1 - 7 As shown, a steel structure manufacturing welding cut grinding device is applied to an I-shaped steel structure 1 and includes a fixing frame 2, a fixing fixture 3 provided thereon for initially positioning the steel structure 1, and a grinding mechanism 4. The fixing fixture 3 is provided with a stabilizing component for keeping the steel structure 1 stable during the operation of the grinding mechanism 4. The stabilizing component includes a support member 5 capable of supporting the steel structure 1 and a pressure maintaining member 6 cooperating with the grinding mechanism 4 to act on the support member 5. The grinding mechanism 4 has a movable frame 41 capable of moving towards the fixing fixture 3 and a grinding head 42 provided thereon capable of moving along the cut surface of the steel structure 1. The movable frame 41 is provided with an alignment pressing rod 411 capable of moving with it and acting on the pressure maintaining member 6. The fixing frame 2 is provided with an alignment channel 21 through which the alignment pressing rod 411 can pass to guide the grinding head 42 to vertically press on the cut surface of the steel structure 1. When the grinding head 42 moves towards the cut surface of the steel structure 1 through the movable frame 41, the alignment pressing rod 411 enters the alignment channel 21 to make the surface of the grinding head 42 flush with the cut surface of the steel structure 1. At the same time, the pressure maintaining member 6 is in a pressurized state on the support member 5 under the action of the alignment pressing rod 411.

[0035] The grinding mechanism 4 further has a displacement driver 43 provided on the movable frame 41 for driving the grinding head 42 to move along the XY coordinate system.

[0036] The drive source for driving the movable frame 41 to move is not shown in the figure.

[0037] The drive source for driving the grinding head 42 to rotate is not shown in the figure.

[0038] When the grinding head 42 starts to grind the welding cut of the I-shaped steel structure 1, first, the I-shaped steel structure 1 to be ground is preliminarily positioned and clamped by the fixing fixture 3. Since the I-shaped steel usually has a long dimension and a thin wall, its rigidity is poor, so it is very easy to vibrate or locally deform due to external forces during the processing, affecting the final grinding accuracy and surface quality.

[0039] Next, the grinding mechanism 4 starts to operate. The movable frame 41 gradually approaches the cut surface of the steel structure 1 driven by the power device. At this time, the grinding head 42 arranged on the movable frame 41 also starts to rotate at high speed, preparing for the actual grinding operation.

[0040] With the cooperation of the alignment pressure rod 411 on the movable frame 41 and the external channel, the grinding head 42 is guided to accurately align with the cut surface and maintain a perpendicular pressing state. That is, as the movable frame 41 moves forward, the alignment pressure rod 411 gradually enters the alignment channel 21 reserved on the fixed frame 2. This not only provides a guiding path for the alignment pressure rod 411 but also ensures that the grinding head 42 is in the correct angle and position before contacting the workpiece, thus avoiding the error problems that may occur in the traditional manual alignment process. Once the alignment pressure rod 411 completely enters the alignment channel 21, the surface of the grinding head 42 is automatically adjusted to be flush with the cut surface of the steel structure 1, ensuring the uniformity and consistency of the grinding process.

[0041] At the same time, when the alignment pressure rod 411 enters the alignment channel 21, it will exert pressure on the pressure-holding part 6, and the pressure exerted on the pressure-holding part 6 will be transmitted to the support part 5. At this time, under the linkage action of the alignment pressure rod 411, the pressure-holding part 6 exerts pressure on the support part 5 towards the steel structure 1, so that the steel structure 1 is stably supported by the support part 5, improving the stability during the processing of the steel structure 1 and ensuring that the cut surface of the steel structure 1 is ground smoothly. Even for I-shaped steel with long dimensions or thin-walled structures, high-precision alignment and stable grinding effects can be achieved.

[0042] See Figures 4 - 10 As shown, two of the said support parts 5 are symmetrically arranged on the fixed frame 2. The support part 5 is specifically a plate-like structure that can closely adhere to the side of the steel structure 1 according to its shape. Each support part 5 has a support structure 512 connected to the fixed frame 2, and a first spring 51 is arranged between each support structure 512 and the fixed frame 2. When the steel structure 1 is under the pressure provided by the first spring 51 between the two support parts 5, the two support parts 5 form a frame structure for the overall support of the steel structure 1.

[0043] After the I-shaped steel structure 1 is preliminarily positioned by the fixing fixture 3, two support members 5 symmetrically arranged on both sides of the steel structure 1 respectively press against the corresponding sides of the steel structure 1. As plate-like structures, the two support members 5 can be closely attached according to the side contour of the I-beam to provide a more stable support effect. At this time, the first spring 51 is compressed and the spring force is transmitted to the support member 5.

[0044] Under the action of the spring force, the two support members 5 move closer to each other inward and tightly adhere to both sides of the steel structure 1, forming an integral support frame structure. This not only enhances the overall support ability for thin-walled or long-sized I-beams, but also effectively improves the stability of the structure during the grinding process, preventing offset or deformation caused by uneven local stress, thereby ensuring the high precision of the grinding operation and the cutting quality.

[0045] See Figures 7 - 10 As shown, pressure-holding members 6 are provided at the positions corresponding to each support structure 512 on the fixing frame 2. A rubber structure 52 capable of being pressured by the corresponding pressure-holding member 6 is provided on each support structure 512. When the pressure-holding member 6 gradually applies pressure to the rubber structure 52, the rubber structure 52 is in a gradually compressed state, causing the pressure on the steel structure 1 between the two support members 5 to gradually increase.

[0046] Two pressure-holding members 6 are symmetrically provided on the outer side of each support member 5 along the height direction of the steel structure 1.

[0047] When the grinding operation starts, the movable frame 41 drives the alignment pressure rod 411 to move forward and gradually enter the alignment channel 21 on the fixing frame 2. The pressure-holding members 6 at the positions corresponding to each support structure 512 on the fixing frame 2 are all subjected to the acting force of the corresponding alignment pressure rod 411. Until the grinding head 42 contacts the cutting surface of the steel structure 1, the pressure-holding member 6 completes the pressure application to the support member 5.

[0048] That is, as the grinding head 42 continues to move forward, the alignment pressure rod 411 pushes the pressure-holding member 6 to move inward synchronously, causing it to gradually contact and apply pressure to the corresponding rubber structure 52. At this time, the rubber structure 52 begins to undergo elastic compression deformation under the pressure of the pressure-holding member 6, and its compression degree gradually increases during the pressure application process, thereby uniformly transmitting the pressure to the support structure 512 and the support member 5. With the continuous compression of the rubber structure 52, the clamping force between the two support members 5 is enhanced, and the stable pressure on the steel structure 1 between the support members 5 is continuously increased, thereby effectively improving the fixing reliability and force uniformity of the workpiece during the entire grinding process.

[0049] See Figures 7 - 10As shown, a positioning pressure rod 411 is provided on the movable frame 41 corresponding to each pressure-maintaining member 6, and a positioning channel 21 is provided on the fixed frame 2 corresponding to each positioning pressure rod 411. The axial direction of the positioning pressure rod 411 is perpendicular to the cut surface of the steel structure 1. When the positioning pressure rod 411 enters the positioning channel 21, the positioning pressure rod 411 can move closely against the inner wall of the positioning channel 21.

[0050] When the movable frame 41 drives the grinding head 42 to move toward the cut surface of the steel structure 1, each alignment pressure rod 411 installed on the movable frame 41 also moves forward and enters the alignment channel 21 provided on the fixed frame 2 one by one. Since the axial direction of each alignment pressure rod 411 is strictly perpendicular to the cut surface of the steel structure 1, it can ensure that the force direction of the grinding head 42 remains perpendicular to the cut surface of the steel structure 1.

[0051] As the movable frame 41 continues to move forward, the front end of the alignment pressure rod 411 gradually contacts the entrance of the alignment channel 21 and begins to enter the channel under its guidance. At this time, the alignment pressure rod 411 always slides close to the inner wall of the alignment channel 21 during the movement, which not only provides a stable guiding effect for the alignment pressure rod 411, but also effectively prevents it from deflecting or shaking during the movement, thereby ensuring the accuracy and consistency of pressure transmission, improving the stability and processing accuracy of the grinding operation, and ensuring that the cut surface of the steel structure 1 is ground flat, which is conducive to subsequent welding.

[0052] See also Figures 7 - 10 As shown, the pressure-maintaining member 6 is specifically a block-shaped structure, and a socket for inserting the positioning pressure rod 411 is provided on the side of the pressure-maintaining member 6 facing the positioning channel 21. When the positioning pressure rod 411 squeezes the pressure-maintaining member 6 by cooperating with the socket, the pressure-maintaining member 6 is in a horizontally pushed state, so that the rubber structure 52 is evenly pressurized.

[0053] When the movable frame 41 drives the alignment pressure rod 411 to move forward and gradually approach the pressure maintaining part 6 on the fixed frame 2, as the movable frame 41 is pushed forward, the front end of the alignment pressure rod 411 gradually enters the insertion hole. At this time, the push on the pressure maintaining part 6 is in a stable state, avoiding the pressure maintaining part 6 from being deflected during the force application process.

[0054] As the pressure-maintaining member 6 is pushed by the alignment pressure rod 411 to move in the horizontal direction, the other end of the pressure-maintaining member 6 simultaneously acts on the rubber structure 52 on the support structure 512. Due to the close fit between the alignment pressure rod 411 and the insertion hole, the thrust applied to the pressure-maintaining member 6 is evenly distributed, thereby ensuring that the rubber structure 52 is subjected to uniform force during the compression process, avoiding the occurrence of local stress concentration, and further improving the stability and uniformity of the support member 5 clamping the steel structure 1.

[0055] See also Figures 7 - 10As shown, the side of the pressure-maintaining member 6 facing the rubber structure 52 has an inclined surface capable of converting the horizontal displacement of the pressure-maintaining member 6 into a vertical pressure on the rubber structure 52 .

[0056] When the pressure-maintaining member 6 moves in the horizontal direction under the push of the alignment pressure rod 411, the inclined surface arranged on the side facing the rubber structure 52 begins to contact the rubber structure 52. As the pressure-maintaining member 6 continues to move forward, the inclined surface gradually acts on the surface of the rubber structure 52, converting the original horizontal driving force into vertical pressure.

[0057] At this time, the rubber structure 52 is evenly compressed under the action of the inclined surface, and the generated reverse pressure is more evenly distributed on the support structure 512, thereby enhancing the stability and consistency of the clamping force applied by the support 5 to the steel structure 1, ensuring that the steel structure 1 is evenly stressed and firmly positioned during the grinding process.

[0058] See also Figures 7 - 10 As shown, a second spring 61 is connected between the pressure maintaining member 6 and the fixed frame 2 along the axial direction of the positioning pressure rod 411. When the positioning pressure rod 411 applies pressure to the pressure maintaining member 6, the second spring 61 is in a stretched state. When the positioning pressure rod 411 follows the movable frame 41 away from the steel structure 1, the second spring 61 drives the pressure maintaining member 6 to be in a gradually resetting state.

[0059] When the alignment pressure rod 411 moves forward driven by the movable frame 41 and applies pressure to the pressure-maintaining member 6 , the second spring 61 connected between the pressure-maintaining member 6 and the fixed frame 2 is stretched accordingly to store the elastic potential energy required for resetting.

[0060] As the grinding operation is completed, the movable frame 41 begins to drive the positioning pressure rod 411 to move in the opposite direction and gradually break away from the pressure-applying state on the pressure-maintaining member 6. During this process, the second spring 61 releases the stored energy due to the loss of external resistance, generating a retraction force, pushing the pressure-maintaining member 6 to move outward along the axial direction of the positioning pressure rod 411, so that it gradually returns to its initial position, thereby realizing the automatic resetting function of the pressure-maintaining member 6 and contacting the state of pressurizing the support member 5.

[0061] See also Figures 7 - 10 As shown, a pressure sensor for detecting the deformation degree of the second spring 61 is provided on the fixing frame 2. When the pressure sensor detects through the second spring 61 that the pressure maintaining member 6 has completed the pressure on the rubber structure 52, the grinding head 42 is simultaneously in a state of maintaining contact with the cut surface of the steel structure 1.

[0062] The pressure sensor is not shown in the figure.

[0063] When the pressure-holding member 6 moves inward under the push of the alignment pressure rod 411 and applies pressure to the rubber structure 52, the second spring 61 connected between the pressure-holding member 6 and the fixed frame 2 is stretched accordingly. At this time, the pressure sensor provided on the fixed frame 2 monitors the stretching state of the second spring 61 in real time, and determines whether the pressure-holding member 6 has completed the pressure application to the rubber structure 52 based on this.

[0064] When the pressure sensor detects that the deformation of the second spring 61 reaches the set threshold, it indicates that the pressure-holding member 6 has fully acted on the rubber structure 52, and the clamping state of the support member 5 on the steel structure 1 has been stably established. At the same time, the grinding head 42 also just moves forward to the set position driven by the movable frame 41 and keeps in close contact with the cut surface of the steel structure 1, and is ready to start or is in the process of grinding operation. It ensures the synchronism and coordination between the contact of the grinding head 42 with the workpiece and the clamping action of the pressure-holding member 6, and further improves the stability and precision of the entire grinding process.

[0065] See Figures 7 - 10 As shown, each support structure 512 is provided with a guide rod 511 extending outward through the fixed frame 2, and the fixed frame 2 is provided with a guide opening for the guide rod 511 to pass through. The axial direction of the guide rod 511 is perpendicular to the axial direction of the alignment pressure rod 411.

[0066] When the support structure 512 is under pressure and displaced under the action of the pressure-holding member 6 and the rubber structure 52, the guide rod 511 provided on each support structure 512 moves synchronously. The guide rod 511 slides outward along the corresponding guide opening, ensuring that the support structure 512 moves smoothly only in the set direction during the stress process.

[0067] As the support structure 512 is displaced due to the change in the clamping force, the guide rod 511 slides in the guide opening, playing an accurate guiding and limiting role, preventing the support structure 512 from deflecting or misaligning under the action of pressure, so as to ensure that the support member 5 always fits well with the side of the steel structure 1, and improve the stability and positioning accuracy during the entire grinding process.

[0068] See Figures 7 - 10 As shown, each end of the support member 5 facing the direction in which the steel structure 1 enters has a guiding surface. When the two support members 5 are in contact, a guiding channel 53 for the steel structure 1 to enter the two support members 5 is formed between the two guiding surfaces.

[0069] When the I-shaped steel structure 1 needs to be clamped between the two support members 5, its front end first contacts and enters the entrance area formed by the guiding surfaces of the two support members 5 arranged oppositely. When the two support members 5 are in contact, a gradually narrowing guiding channel 53 is formed between the two guiding surfaces.

[0070] As the steel structure 1 advances forward along the guiding channel 53, the guiding surface plays a guiding and preliminary alignment role on its side, enabling it to smoothly and steadily enter the clamping area between the two support members 5, ensuring the accuracy and consistency of subsequent clamping operations, and avoiding problems of unstable fixation caused by misalignment or jamming.

[0071] In the present invention, through the support members 5 symmetrically arranged on both sides of the I-shaped steel structure 1 and the pressure provided by the first spring 51, the support members 5 are closely attached to the surface of the steel structure 1, forming a stable frame structure, which improves the stability and anti-deformation ability of the thin-walled or long-sized I-shaped steel structure 1 during the grinding process.

[0072] At the same time, through the cooperation of the alignment pressure rod 411 and the alignment channel 21, it is ensured that the grinding head 42 vertically and precisely presses on the incision surface, avoiding machining deviation. During this process, the alignment pressure rod 411 pushes the pressure-holding member 6 to move, and combines with the inclined surface to convert the horizontal force into a uniform vertical pressure on the rubber structure 52, so that the support members 5 maintain a high degree of consistency during the force application process. Effectively improves the clamping stability and grinding accuracy, ensures the flatness of the incision surface and the surface machining quality, and realizes the efficient and high-precision grinding treatment of the welding incision of the steel structure 1.

[0073] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as limiting the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A steel structure manufacturing and welding incision grinding device, which is applied to I-shaped steel structures (1), includes a fixed frame (2), a fixed fixture (3) arranged thereon for initially positioning the steel structure (1), and a grinding mechanism (4). It is characterized in that The fixed fixture (3) is provided with a stabilizing component for keeping the steel structure (1) stable during the operation of the grinding mechanism (4). The stabilizing component includes a support member (5) capable of supporting the steel structure (1) and a pressure maintaining member (6) that cooperates with the grinding mechanism (4) and acts on the support member (5). The grinding mechanism (4) has a movable frame (41) that can move towards the fixed fixture (3) and a grinding head (42) arranged thereon that can move along the incision surface of the steel structure (1). A counterpoint pressure rod (411) that can move along with the movable frame (41) and act on the pressure maintaining member (6) is arranged on the movable frame (41). A counterpoint channel (21) is arranged on the fixed frame (2) through which the counterpoint pressure rod (411) can pass to guide the grinding head (42) to vertically press on the incision surface of the steel structure (1). When the grinding head (42) moves towards the incision surface of the steel structure (1) through the movable frame (41), the counterpoint pressure rod (411) enters the counterpoint channel (21) to make the surface of the grinding head (42) flush with the incision surface of the steel structure (1). At the same time, the pressure maintaining member (6) is in a pressure-applying state on the support member (5) under the action of the counterpoint pressure rod (411).

2. The steel structure manufacturing and welding notch grinding equipment according to claim 1, characterized in that, Two of the support members (5) are symmetrically arranged on the fixed frame (2). The support member (5) is specifically a plate-like structure that can closely adhere to the side of the steel structure (1) according to its shape. Each support member (5) has a support structure (512) connected to the fixed frame (2). A first spring (51) is arranged between each support structure (512) and the fixed frame (2). When the steel structure (1) is under the pressure provided by the first spring (51) between the two support members (5), the two support members (5) form a frame structure for overall supporting the steel structure (1).

3. The steel structure manufacturing and welding incision grinding equipment according to claim 2, characterized in that, The pressure maintaining member (6) is arranged at the position corresponding to each support structure (512) on the fixed frame (2). A rubber structure (52) for the corresponding pressure maintaining member (6) to apply pressure is arranged on each support structure (512). When the pressure maintaining member (6) gradually applies pressure to the rubber structure (52), the rubber structure (52) is in a gradually compressed state, so that the pressure on the steel structure (1) between the two support members (5) gradually increases.

4. A steel structure manufacturing and welding incision grinding device according to claim 3, characterized in that, A counterpoint pressure rod (411) is arranged on the movable frame (41) corresponding to each pressure maintaining member (6). A counterpoint channel (21) is arranged on the fixed frame (2) corresponding to each counterpoint pressure rod (411). The axial direction of the counterpoint pressure rod (411) is perpendicular to the incision surface of the steel structure (1). During the process of the counterpoint pressure rod (411) entering the counterpoint channel (21), the counterpoint pressure rod (411) can move closely along the inner wall of the counterpoint channel (21).

5. The steel structure manufacturing and welding incision grinding equipment according to claim 3, characterized in that, The pressure-maintaining member (6) is specifically a block-shaped structure. A plug hole capable of inserting the positioning pressure rod (411) is provided on a side of the pressure-maintaining member (6) facing the positioning channel (21). When the positioning pressure rod (411) squeezes the pressure-maintaining member (6) by cooperating with the plug hole, the pressure-maintaining member (6) is in a horizontally pushed state, so that the rubber structure (52) is evenly pressurized.

6. The steel structure manufacturing and welding incision grinding equipment according to claim 5, characterized in that, The side of the pressure-maintaining member (6) facing the rubber structure (52) has an inclined surface capable of converting the horizontal displacement of the pressure-maintaining member (6) into vertical pressure on the rubber structure (52).

7. A steel structure manufacturing and welding incision grinding device according to claim 6, characterized in that, A second spring (61) is connected between the pressure-maintaining member (6) and the fixed frame (2) along the axial direction of the aligning pressure rod (411); when the aligning pressure rod (411) applies pressure to the pressure-maintaining member (6), the second spring (61) is in a stretched state; and when the aligning pressure rod (411) follows the movable frame (41) away from the steel structure (1), the second spring (61) drives the pressure-maintaining member (6) to be in a gradually returning state.

8. A steel structure manufacturing and welding incision grinding device according to claim 7, characterized in that, A pressure sensor for detecting the degree of deformation of the second spring (61) is provided on the fixing frame (2). When the pressure sensor detects through the second spring (61) that the pressure-maintaining member (6) has completed applying pressure to the rubber structure (52), the grinding head (42) is simultaneously in a state of being in contact with the cut surface of the steel structure (1).

9. A steel structure manufacturing and welding incision grinding device according to claim 4, characterized in that, Each support structure (512) is provided with a guide rod (511) that passes through the fixing frame (2) and extends outwards. The fixing frame (2) is provided with a guide opening for the guide rod (511) to pass through. The axial direction of the guide rod (511) is perpendicular to the axial direction of the alignment pressure rod (411).

10. A steel structure manufacturing and welding notch grinding device according to claim 2, characterized in that, Each support member (5) has a guide surface at one end facing the direction in which the steel structure (1) enters, and when the two support members (5) are fitted together, a guide channel (53) is formed between the two guide surfaces for the steel structure (1) to enter the two support members (5).

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