Welding treatment process for reinforcing wear resistance of wear-resistant part by embedding wear-resistant material

Abstract

The invention relates to the technical field of welding processes, in particular to a welding treatment process for reinforcing the wear resistance of a wear-resistant part by embedding a wear-resistant material, which is used for welding a base plate and a plurality of wear-resistant blocks in grooves in the surface of the base plate through a welding material to obtain a welded part. The welding treatment process comprises the following steps that A1, groove walls on the two sides of a groove in a base plate are recognized, and the wall thickness parameter of the groove in the corresponding position of each abrasion-resistant block is judged; a2, determining an extrusion force parameter of the wear-resistant block according to the wall thickness parameter of the groove; a3, an extrusion device is started according to the extrusion force parameters, and the wear-resisting block is subjected to extrusion positioning; according to the method, the corresponding extrusion force parameters are selected according to the wall thickness information, then the corresponding wear-resisting blocks are extruded according to the corresponding extrusion force parameters, and the situation that the welding quality is affected due to changes of the groove wall thickness and too large or too small extrusion force is avoided.

Description

Technical Field

[0001] The invention relates to the field of welding technology, and in particular to a welding processing technology for embedding wear-resistant materials to enhance the wear-resistant performance of wear-resistant parts. Background Art

[0002] When processing strip steel in a hot rolling coil workshop or a cold rolling coil workshop, the long-term collision and friction between the liner or side guide plate and the strip steel causes the contact parts of the liner or side guide plate and the strip steel to be easily worn, thus affecting the service life of the liner or side guide plate.

[0003] When strengthening wear-resistant parts such as liner plates or side guide plates, the existing technology mostly uses hardfacing welding for surface strengthening treatment, and enhances wear resistance by depositing a layer of hardfacing material on the surface or edge of the workpiece. Hardfacing materials can be divided into several categories according to chemical composition and organizational structure, such as Fe-based, Ni-based, Co-based, and Cu-based. Among them, Fe-based alloys are the most widely used due to their good toughness and wear resistance and low price; but in actual application, the hardfacing of the weld is thin and prone to defects such as cracks, pores, and slag inclusions, which will affect the wear resistance in actual use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a welding process for embedding wear-resistant materials to enhance the wear-resistant performance of wear-resistant parts.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a welding process for embedding wear-resistant materials to strengthen the wear resistance of wear-resistant parts, which is used to weld a substrate and a plurality of wear-resistant blocks in grooves on its surface through welding materials to obtain a welded part, and the welding process includes the following steps: A1. Identify the groove walls on both sides of the groove on the substrate and determine the groove wall thickness parameters at the corresponding position of each wear-resistant block; A2. Determine the extrusion pressure parameters of the wear-resistant block according to the groove wall thickness parameters; A3. Start the extrusion device according to the extrusion pressure parameters to extrude and position the wear-resistant block; A4. Fill the gap between the wear block and the base plate with welding material; A5. Start the welding machine to weld the weld seam of the wear-resistant block that is not blocked; A6. After the welding of the weld seam that is not blocked by the wear-resistant block is completed, adjust the extrusion device of the wear-resistant block to dock and fix it with the extrusion device of the adjacent wear-resistant block, and switch the blocking position of the extrusion device on the weld seam; A7. Start the welding machine to weld the exposed weld and the next wear-resistant block; Specifically, when the hot rolling coil workshop or the cold rolling coil workshop processes the strip steel, the wear-resistant parts at least include the side guide plate and the centering liner on the machine. During the strengthening process, the wear-resistant parts are used as the substrate, a groove is opened on the substrate, and the alloy block is used as the wear-resistant material. A plurality of alloy blocks are placed in the groove for welding, thereby completing the strengthening treatment of the wear-resistant parts. Compared with the existing surfacing, the thickness of the wear-resistant material is greater and the wear resistance is better. Taking the side guide plate as an example, the wall thickness of the groove of the side guide plate is relatively uniform on only one side, while the wall thickness of the other side gradually increases or decreases. During the welding process, as the thickness of the groove wall decreases, the local rigidity of the substrate will decrease, making the area more prone to bending or deformation. Increasing the extrusion force helps to resist these deformations and maintain the stability of the structure. Therefore, before welding, due to the uneven wall thickness of one side of the groove, it is necessary to first detect the wall thickness of the groove at the corresponding position of each wear-resistant block through a visual detection device, select the corresponding extrusion pressure parameter according to the wall thickness information, and then extrude the corresponding wear-resistant block, which is conducive to avoiding the situation that the extrusion pressure is too large or too small due to the change of the groove wall thickness, which affects the welding quality; Furthermore, in order to more accurately control the welding quality of each weld and reduce the heat impact during welding, it is often chosen to weld one wear-resistant block first and then weld the next wear-resistant block. During the welding process, in order to ensure the overall stability, a fixed positioning device is often used to position the weldment. When the extrusion device positions the wear-resistant block, its connection structure will inevitably be located above one of the welds, thereby blocking the welding path and affecting the passage of the welding head. Therefore, when welding to this position, it is necessary to switch the connection position of the extrusion device, thereby switching the blocking position, and switching the blocking position to the position where the welding has been completed, thereby ensuring the smooth passage of the welding head; Specifically, by connecting the extrusion device with the adjacent extrusion device, the driving member of the extrusion device is separated from the extrusion head, thereby exposing the weld, facilitating the passage of the welding head, and thus ensuring the continuity of the welding process.

[0006] Preferably, step A1 comprises: After obtaining the groove wall thickness parameters at the corresponding position of each wear-resistant block, the wall thickness change information is determined according to the multiple groove wall thickness parameters; Generate regional information according to the wall thickness variation information, wherein the regional information includes first regional information of irregular wall thickness variation, second regional information of regular wall thickness increase, and third regional information of regular wall thickness decrease; Determining the order of docking modes according to the regional information, the docking modes including a first docking mode adapted to the first regional information, a second docking mode adapted to the second regional information, and a third docking mode adapted to the third regional information; Among them, the wall thickness changes of some wear-resistant parts are relatively regular, such as the side guide plate. In different welding directions, its wall thickness may gradually increase or decrease; the wall thickness changes of some wear-resistant parts are irregular, such as the centering liner on the machine; the wall thickness changes of some wear-resistant parts may be regular in the front section, irregular in the middle section, and regular in the back section. It can be seen that different docking methods need to be selected for different situations. For wear-resistant parts with multiple situations, it is necessary to sort the docking methods to speed up the welding efficiency. For example, for wear-resistant parts with gradually increasing wall thickness at the front section, irregular in the middle section, and gradually decreasing in the back section, the docking methods are sorted as follows: first perform the second docking method, then the first docking method, and finally the third docking method.

[0007] In practical applications, since the extrusion forces on the wear-resistant blocks are different, inaccurate docking may occur when the extrusion device is connected. Therefore, it is necessary to adjust the extrusion forces on the two wear-resistant blocks to be the same before docking. Therefore, the specific docking method of the first docking method includes: A601. When the weld of the unobstructed wear-resistant block is completed, the extrusion pressure parameters of the adjacent wear-resistant block and the extrusion pressure parameters of the wear-resistant block are obtained; A602. Compare the extrusion pressure parameters of the adjacent wear-resistant blocks with the extrusion pressure parameters of the wear-resistant block, and generate extrusion pressure adjustment information, wherein the extrusion pressure adjustment information includes at least first adjustment information and second adjustment information, wherein the first adjustment information is used to adjust the extrusion pressure of the previous wear-resistant block to be the same as the extrusion pressure of the wear-resistant block, and the second adjustment information is used to adjust the extrusion pressure of the wear-resistant block to be the same as the extrusion pressure on one of the adjacent wear-resistant blocks; A603. Adjust the extrusion pressure of the corresponding wear-resistant block according to the extrusion pressure adjustment information; A604. Adjust the connection position of the extrusion device on the wear block to expose the shielded welding position; In order to better describe the above method, the wear-resistant block being welded is taken as wear-resistant block B, and its adjacent wear-resistant blocks, one of which is in a welded state as wear-resistant block A, and the other is in an unwelded state as wear-resistant block C, are taken as an example; During the welding process of the wear-resistant block B, the extrusion device will block one weld of the wear-resistant block B. After the other welds of the wear-resistant block B are welded, it is necessary to switch the connection state of the extrusion device to connect it with the adjacent extrusion device, and then switch the blocking position; However, the extrusion forces on adjacent wear-resistant blocks may be different, resulting in different heights of the extrusion devices. In order to complete the docking of the extrusion devices, it is necessary to first adjust the extrusion force to make the docking heights of adjacent extrusion devices the same; Furthermore, since the wear-resistant block C has not been welded yet, changing its extrusion pressure will affect the welding quality. Therefore, the extrusion pressure of the wear-resistant block C cannot be changed. It is known from the prior art that after welding is completed, the extrusion of the positioning piece may generate high residual stress in the weldment. These stresses may be suddenly released when the extrusion force is removed, resulting in micro deformation and cracks in the weldment. Therefore, gradually reducing the extrusion force can reduce the risk of such stress release and help avoid the formation of cracks. Since the wear-resistant block A and the wear-resistant block B have been welded and the preliminary positioning has been completed, reducing the extrusion force will not affect the welding quality on the one hand, and on the other hand, it is also beneficial to reduce the residual stress generated by the extrusion inside the weldment. Therefore, the extrusion force of the wear-resistant block A and the wear-resistant block B can be adjusted to adjust the butt height of the extrusion device to perform butt jointing; It can be seen from this that no matter whether the extrusion pressure of the wear-resistant block A is greater than or less than the extrusion pressure of the wear-resistant block B, the extrusion pressures of the wear-resistant block A and the wear-resistant block B can be made the same by adjusting the extrusion pressure of the wear-resistant block B or the wear-resistant block A. As for the wear-resistant block C, only when the extrusion force is less than that of the wear-resistant block B, can the extrusion force of the wear-resistant block B be adjusted to make the extrusion force of the wear-resistant block B and the wear-resistant block C the same; In summary, the first adjustment information is generated in the following cases: When the extrusion force of the wear-resistant block A is greater than the extrusion force of the wear-resistant block B, the extrusion devices on the wear-resistant block A and the wear-resistant block B can be butted against each other by reducing the extrusion force of the wear-resistant block A; In the following cases, the second adjustment information is generated; When the extrusion force of the wear-resistant block C is less than the extrusion force of the wear-resistant block B, the extrusion devices on the wear-resistant block B and the wear-resistant block C can be butted against each other by reducing the extrusion force of the wear-resistant block B; When the extrusion force of the wear-resistant block A is less than that of the wear-resistant block B, the extrusion devices on the wear-resistant block A and the wear-resistant block B can be butted against each other by reducing the extrusion force of the wear-resistant block B; When the extrusion pressures of wear-resistant block A and wear-resistant block C both meet the adjustment conditions, wear-resistant block B can arbitrarily select the extrusion device of wear-resistant block A or wear-resistant block C for docking.

[0008] Preferably, step A602 includes: When the extrusion pressure parameters of adjacent wear-resistant blocks are all smaller than the extrusion pressure parameters of the wear-resistant block, the extrusion pressure parameters of the adjacent wear-resistant blocks are compared to determine the target wear-resistant block, wherein the target wear-resistant block is the wear-resistant block with the larger extrusion pressure parameter in the comparison; generating third adjustment information according to the extrusion pressure parameter of the target wear-resistant block; adjusting the extrusion pressure of the wear-resistant block according to the third adjustment information; Among them, when the extrusion pressure parameters of two adjacent wear-resistant blocks are both smaller than the extrusion pressure parameters of the wear-resistant block, it means that the heights of the extrusion devices on both sides are higher than the height of the extrusion device on the wear-resistant block. At this time, it is necessary to adjust the height of the extrusion device on the wear-resistant block to match one of them, so that the docking can be completed; However, in order to better ensure the stability of the wear-resistant block, an extrusion device with large extrusion pressure is selected for docking, and its extrusion pressure is closest to the extrusion pressure of the wear-resistant block, so as to ensure that when the extrusion pressure is changed, the impact on the wear-resistant block is minimized. Therefore, after comparing the extrusion pressure parameters of adjacent wear-resistant blocks, by selecting the wear-resistant block with large extrusion pressure as the target wear-resistant block, it is beneficial to avoid the impact of reducing pressure on the wear-resistant block.

[0009] Preferably, the specific docking method of the second docking mode includes: When the welding position of the wear-resistant block exposed is welded, the extrusion pressure parameter of the previous wear-resistant block is obtained to generate first adjustment information; According to the first adjustment information, the extrusion pressure of the previous wear-resistant block is adjusted to be equal to the extrusion pressure of the current wear-resistant block; Adjust the extrusion device on the previous wear-resistant block to connect with the extrusion device on the current wear-resistant block, and switch the shielding position; Among them, during the welding process, when the wall thickness of the wear-resistant part gradually increases, the extrusion pressure on the wear-resistant block gradually decreases along the welding direction, and the height of the extrusion device gradually increases. At this time, it is only necessary to adjust the extrusion pressure of the previously welded wear-resistant block to be the same as the extrusion pressure of the current wear-resistant block. This can not only complete the docking, but also reduce the residual stress generated by the extrusion effect inside the welded wear-resistant block, which is beneficial to ensure the welding quality.

[0010] Preferably, the specific docking method of the third docking mode includes: When the welding of the exposed welding position of the wear-resistant block is completed, the extrusion pressure parameter of the previous wear-resistant block is obtained to generate second adjustment information; According to the second adjustment information, the extrusion pressure of the wear-resistant block is adjusted to be equal to the extrusion pressure of the previous wear-resistant block; Adjust the extrusion device on the previous wear-resistant block to connect with the extrusion device on the current wear-resistant block, and switch the shielding position; Among them, during the welding process, when the wall thickness of the wear-resistant part gradually decreases, the extrusion pressure on the wear-resistant block gradually increases along the welding direction, and the height of the extrusion device gradually decreases. At this time, it is only necessary to adjust the extrusion pressure of the wear-resistant block to the same as the extrusion pressure of the previously welded wear-resistant block to complete the welding.

[0011] It should be noted that the number of extrusion devices in step A3 is equal to the number of wear-resistant blocks. Preferably, the extrusion device comprises: A pulling member, wherein the pulling member is slidably connected to a processing table of the welding machine; An extrusion head, wherein a sleeve is disposed on the top of the extrusion head, a transmission plate is slidably connected in the sleeve, and the transmission plate is fixed to the pulling end of the pulling member; A connecting assembly is used to fix the extrusion head connected to it with an adjacent extrusion head.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. Before welding, due to the uneven wall thickness of one side of the groove, it is necessary to first use a visual inspection device to detect the wall thickness of the groove at the corresponding position of each wear-resistant block, select the corresponding extrusion pressure parameters according to the wall thickness information, and then extrude the corresponding wear-resistant block according to the corresponding extrusion pressure parameters, which is helpful to avoid the situation where the extrusion pressure is too large or too small due to changes in the groove wall thickness, which affects the welding quality.

[0013] Second, when the extrusion device is positioning the wear-resistant block, its connection structure will inevitably be located above one of the welds, thereby blocking the welding path and affecting the passage of the welding head. Therefore, when welding to this position, the extrusion device is connected to the adjacent extrusion device so that the driving part of the extrusion device is separated from the extrusion head, thereby exposing the weld, facilitating the passage of the welding head, and ensuring continuity during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a flow chart of the welding process of the present invention.

[0015] Figure 2 It is a schematic diagram of the side guide plate of the present invention.

[0016] Figure 3 It is a schematic diagram of the device structure of the present invention.

[0017] Figure 4 For the present invention Figure 3 The enlarged structural diagram at E in FIG.

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing part of the present invention.

[0019] Figure 6 For the present invention Figure 5 The enlarged structural diagram at H in FIG.

[0020] In the figure: 1. base plate; 2. groove; 3. welding machine; 4. pulling member; 5. processing table; 6. extrusion head; 7. sleeve; 8. transmission plate; 9. slide rail; 10. electric push rod; 11. slider; 12. extrusion part; 13. fixing part; 14. spring; 15. pressure sensor; 16. connecting plate; 17. first slot; 18. second slot; 19. fixing member; 20. rack; 21. gear; 22. motor. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] like Figure 1 A welding process for embedding wear-resistant materials to enhance the wear-resistant performance of wear-resistant parts is shown, which is used to weld a substrate 1 and a plurality of wear-resistant blocks in a groove 2 on its surface through a welding material to obtain a welded part. The welding process includes the following steps: A1. Identify the groove walls on both sides of the groove 2 on the substrate 1 and determine the wall thickness parameters of the groove 2 at the corresponding position of each wear-resistant block; A2. Determine the extrusion pressure parameters of the wear block according to the wall thickness parameters of groove 2; A3. Start the extrusion device according to the extrusion pressure parameters to extrude and position the wear-resistant block; A4. Fill the gap between the wear-resistant block and the substrate 1 with welding material; A5. Start welding machine 3 to weld the weld seam of the wear-resistant block that is not blocked; A6. After the welding of the weld seam that is not blocked by the wear-resistant block is completed, adjust the extrusion device of the wear-resistant block to dock and fix it with the extrusion device of the adjacent wear-resistant block, and switch the blocking position of the extrusion device on the weld seam; A7. Start welding machine 3 to weld the exposed weld and the next wear-resistant block; Specifically, when a hot rolling coil workshop or a cold rolling coil workshop processes strip steel, the wear-resistant parts at least include side guide plates, such as Figure 2 As shown, during the strengthening process, the wear-resistant part is used as a substrate 1, a groove 2 is opened on the substrate 1, and an alloy block is used as a wear-resistant material. A plurality of alloy blocks are placed in the groove 2 for welding, thereby completing the strengthening treatment of the wear-resistant part; taking the side guide plate as an example, the wall thickness of the groove 2 of the side guide plate is relatively uniform on only one side, and the wall thickness of the other side gradually increases or decreases. During the welding process, as the thickness of the groove wall decreases, the local rigidity of the substrate 1 will decrease, making the area more prone to bending or deformation. Increasing the extrusion force helps to resist these deformations and maintain the stability of the structure; Therefore, before welding, due to the uneven wall thickness of one side of the groove 2, it is necessary to first detect the wall thickness of the groove 2 at the corresponding position of each wear-resistant block through a visual detection device, and select the corresponding extrusion pressure parameter according to the wall thickness information. The corresponding relationship between the wall thickness and the extrusion pressure can be obtained through a simple analysis experiment. This is a prior art and will not be described in detail here. Then, the corresponding wear-resistant block is extruded according to the corresponding extrusion pressure parameter, which is conducive to avoiding the situation that the extrusion pressure is too large or too small due to the change of the groove wall thickness, which affects the welding quality. Furthermore, in order to more accurately control the welding quality of each weld and reduce the heat impact during welding, it is often chosen to weld one wear-resistant block first and then weld the next wear-resistant block. During the welding process, in order to ensure the overall stability, a fixed positioning device is often used to position the welded parts, such as Figure 3 , Figure 4 As shown, when the extrusion device positions the wear-resistant block, its connection structure will inevitably be located above one of the welds, thereby blocking the welding path and affecting the passage of the welding head. Therefore, when welding to this position, it is necessary to switch the connection position of the extrusion device, thereby switching the blocking position, and switching the blocking position to the position where welding has been completed, thereby ensuring the smooth passage of the welding head; Specifically, by connecting the extrusion device with the adjacent extrusion device, the driving member of the extrusion device is separated from the extrusion head 6, thereby exposing the weld, facilitating the passage of the welding head, and thus ensuring the continuity of the welding process.

[0023] In actual application, due to the different shapes of wear-resistant parts, the wall thickness may vary. In order to improve welding efficiency and welding quality, it is necessary to select the correct butt joint method. Therefore, step A1 includes: After obtaining the groove 2 wall thickness parameters at the corresponding position of each wear-resistant block, determining the wall thickness change information according to the multiple groove 2 wall thickness parameters; Generate regional information according to the wall thickness variation information, the regional information including first regional information of irregular wall thickness variation, second regional information of regular wall thickness increase, and third regional information of regular wall thickness decrease; Determine the order of docking modes according to the regional information, where the docking modes include a first docking mode adapted to the first regional information, a second docking mode adapted to the second regional information, and a third docking mode adapted to the third regional information; Among them, the wall thickness changes of some wear-resistant parts are relatively regular, such as the side guide plate. In different welding directions, its wall thickness may gradually increase or decrease; the wall thickness changes of some wear-resistant parts are irregular, such as the centering liner on the machine; the wall thickness changes of some wear-resistant parts may be regular in the front section, irregular in the middle section, and regular in the back section. It can be seen that different docking methods need to be selected for different situations. For wear-resistant parts with multiple situations, it is necessary to sort the docking methods to speed up the welding efficiency. For example, for wear-resistant parts with gradually increasing wall thickness at the front section, irregular in the middle section, and gradually decreasing in the back section, the docking methods are sorted as follows: first perform the second docking method, then the first docking method, and finally the third docking method.

[0024] When the extrusion pressure of the adjacent wear-resistant block is the same as that of the wear-resistant block, the extrusion device on the wear-resistant block has the same height as that of the adjacent extrusion device. At this time, the extrusion device on the wear-resistant block can be connected to any one of the adjacent extrusion devices. However, in actual applications, since the extrusion pressures on the wear-resistant blocks are different, inaccurate docking often occurs when the extrusion devices are connected. Therefore, it is necessary to adjust the extrusion pressures on the two wear-resistant blocks to be the same before docking. Therefore, the specific docking method of the first docking method includes: A601. When the weld of the unobstructed wear-resistant block is completed, the extrusion pressure parameters of the adjacent wear-resistant block and the extrusion pressure parameters of the wear-resistant block are obtained; A602. Compare the extrusion pressure parameters of the adjacent wear-resistant blocks with the extrusion pressure parameters of the wear-resistant block, and generate extrusion pressure adjustment information, the extrusion pressure adjustment information at least including first adjustment information and second adjustment information, the first adjustment information is used to adjust the extrusion pressure of the previous wear-resistant block to be the same as the extrusion pressure of the wear-resistant block, and the second adjustment information is used to adjust the extrusion pressure of the wear-resistant block to be the same as the extrusion pressure on one of the adjacent wear-resistant blocks; A603. Adjust the extrusion pressure of the corresponding wear-resistant block according to the extrusion pressure adjustment information; A604. Adjust the connection position of the extrusion device on the wear block to expose the shielded welding position; In order to better describe the above implementation method, the wear-resistant block being welded is taken as wear-resistant block B, and its adjacent wear-resistant blocks, one of which is in a welded state as wear-resistant block A, and the other is in an unwelded state as wear-resistant block C, are taken as an example; During the welding process of the wear-resistant block B, the extrusion device will block one weld of the wear-resistant block B. After the other welds of the wear-resistant block B are welded, it is necessary to switch the connection state of the extrusion device to connect it with the adjacent extrusion device, and then switch the blocking position; However, the extrusion forces on adjacent wear-resistant blocks may be different, resulting in different heights of the extrusion devices. In order to complete the docking of the extrusion devices, it is necessary to first adjust the extrusion force to make the docking heights of adjacent extrusion devices the same; Furthermore, since the wear-resistant block C has not been welded yet, changing its extrusion pressure will affect the welding quality. Therefore, the extrusion pressure of the wear-resistant block C cannot be changed. It is known from the prior art that after welding is completed, the extrusion of the positioning piece may generate high residual stress in the weldment. These stresses may be suddenly released when the extrusion force is removed, resulting in micro deformation and cracks in the weldment. Therefore, gradually reducing the extrusion force can reduce the risk of such stress release and help avoid the formation of cracks. Since the wear-resistant block A and the wear-resistant block B have been welded and the preliminary positioning has been completed, reducing the extrusion force will not affect the welding quality on the one hand, and on the other hand, it is also beneficial to reduce the residual stress generated by the extrusion inside the weldment. Therefore, the extrusion force of the wear-resistant block A and the wear-resistant block B can be adjusted to adjust the butt height of the extrusion device to perform butt jointing; It can be seen from this that no matter whether the extrusion pressure of the wear-resistant block A is greater than or less than the extrusion pressure of the wear-resistant block B, the extrusion pressures of the wear-resistant block A and the wear-resistant block B can be made the same by adjusting the extrusion pressure of the wear-resistant block B or the wear-resistant block A. As for the wear-resistant block C, only when the extrusion force is less than that of the wear-resistant block B, can the extrusion force of the wear-resistant block B be adjusted to make the extrusion force of the wear-resistant block B and the wear-resistant block C the same; In summary, the first adjustment information is generated in the following cases: When the extrusion force of the wear-resistant block A is greater than the extrusion force of the wear-resistant block B, the extrusion devices on the wear-resistant block A and the wear-resistant block B can be butted against each other by reducing the extrusion force of the wear-resistant block A; In the following cases, the second adjustment information is generated; When the extrusion force of the wear-resistant block C is less than the extrusion force of the wear-resistant block B, the extrusion devices on the wear-resistant block B and the wear-resistant block C can be butted against each other by reducing the extrusion force of the wear-resistant block B; When the extrusion force of the wear-resistant block A is less than that of the wear-resistant block B, the extrusion devices on the wear-resistant block A and the wear-resistant block B can be butted against each other by reducing the extrusion force of the wear-resistant block B; When the extrusion pressures of wear-resistant block A and wear-resistant block C both meet the adjustment conditions, wear-resistant block B can arbitrarily select the extrusion device of wear-resistant block A or wear-resistant block C for docking.

[0025] In practical applications, in order to further ensure the stability of the wear-resistant block extrusion, the present invention proposes the following implementation method, step A602 includes: When the extrusion pressure parameters of adjacent wear-resistant blocks are all smaller than the extrusion pressure parameters of the wear-resistant block, the extrusion pressure parameters of the adjacent wear-resistant blocks are compared to determine the target wear-resistant block, and the target wear-resistant block is the wear-resistant block with the larger extrusion pressure parameter in the comparison; generating third adjustment information according to the extrusion pressure parameter of the target wear-resistant block; adjusting the extrusion pressure of the wear-resistant block according to the third adjustment information; Among them, when the extrusion pressure parameters of two adjacent wear-resistant blocks are both smaller than the extrusion pressure parameters of the wear-resistant block, it means that the heights of the extrusion devices on both sides are higher than the height of the extrusion device on the wear-resistant block. At this time, it is necessary to adjust the height of the extrusion device on the wear-resistant block to match one of them, so that the docking can be completed; However, in order to better ensure the stability of the wear-resistant block, an extrusion device with a large extrusion force is selected for docking, and its extrusion force is closest to the extrusion force of the wear-resistant block, so as to ensure that when the extrusion pressure is changed, the impact on the wear-resistant block is minimized. Therefore, in the above embodiment, after comparing the extrusion pressure parameters of adjacent wear-resistant blocks, by selecting a wear-resistant block with a large extrusion force as the target wear-resistant block, it is beneficial to avoid the impact of reducing pressure on the wear-resistant block.

[0026] As a further embodiment of the invention, the specific docking method of the second docking mode includes: When the welding position of the wear-resistant block exposed is welded, the extrusion pressure parameter of the previous wear-resistant block is obtained to generate first adjustment information; According to the first adjustment information, the extrusion pressure of the previous wear-resistant block is adjusted to be equal to the extrusion pressure of the current wear-resistant block; Adjust the extrusion device on the previous wear-resistant block to connect with the extrusion device on the current wear-resistant block, and switch the shielding position; Among them, during the welding process, when the wall thickness of the wear-resistant part gradually increases, the extrusion pressure on the wear-resistant block gradually decreases along the welding direction, and the height of the extrusion device gradually increases. At this time, it is only necessary to adjust the extrusion pressure of the previously welded wear-resistant block to be the same as the extrusion pressure of the current wear-resistant block. This can not only complete the docking, but also reduce the residual stress generated by the extrusion effect inside the welded wear-resistant block, which is beneficial to ensure the welding quality.

[0027] As a further embodiment of the invention, the specific docking method of the third docking mode includes: When the welding of the exposed welding position of the wear-resistant block is completed, the extrusion pressure parameter of the previous wear-resistant block is obtained to generate second adjustment information; According to the second adjustment information, the extrusion pressure of the wear-resistant block is adjusted to be equal to the extrusion pressure of the previous wear-resistant block; Adjust the extrusion device on the previous wear-resistant block to connect with the extrusion device on the current wear-resistant block, and switch the shielding position; Among them, during the welding process, when the wall thickness of the wear-resistant part gradually decreases, the extrusion pressure on the wear-resistant block gradually increases along the welding direction, and the height of the extrusion device gradually decreases. At this time, it is only necessary to adjust the extrusion pressure of the wear-resistant block to the same as the extrusion pressure of the previously welded wear-resistant block to complete the welding.

[0028] It should be noted that the number of extrusion devices in step A3 is equal to the number of wear-resistant blocks. On the other hand, the present invention provides an embodiment of the extrusion device for implementing the above process, such as Figures 4 to 6 As shown, the extrusion device comprises: A pulling member 4, the pulling member 4 is slidably connected to a processing table 5 of a welding machine 3; An extrusion head 6, a sleeve 7 is arranged on the top of the extrusion head 6, a transmission plate 8 is slidably connected in the sleeve 7, and the transmission plate 8 is fixed to the pulling end of the pulling member 4; A connecting assembly, the connecting assembly is used to fix the extrusion head 6 connected thereto with an adjacent extrusion head 6; The pulling member 4 can be an electric cylinder, a pneumatic cylinder or the like. A sliding assembly is provided at the bottom of the pulling member 4. The sliding assembly includes a slide rail 9, an electric push rod 10, and a slider 11. The slider 11 is fixed to the pulling member 4. The slider 11 is slidably connected inside the slide rail 9. The electric push rod 10 is fixed to the bottom surface of the processing table 5. The electric push rod 10 is fixed to the slider 11 through a connecting rod. The extrusion head 6 includes an extrusion part 12 and a fixing part 13. The fixing part 13 is fixed to the sleeve 7. The extrusion part 12 is inserted inside the fixing part 13. A spring 14 and a pressure sensor 15 are arranged between the extrusion part 12 and the fixing part 13. The pressure sensor 15 can detect the extrusion force of the extrusion part 12. Specifically, the pulling member 4 is connected to the extrusion head 6 through the transmission plate 8, and the pulling member 4 adjusts the extrusion force of the extrusion head 6 by adjusting the height of the pulling plate; like Figure 4 It can be seen that the transmission plate 8 blocks one side of the wear-resistant block. When the blocking position of the extrusion device needs to be switched, first adjust the extrusion force of the pulling member 4 on the extrusion head 6 to make the extrusion head 6 have the same height as the adjacent extrusion head 6, and then connect the extrusion head 6 with the adjacent extrusion head 6 through the connecting assembly. Finally, start the electric push rod 10 to pull the slider 11, the pulling member 4, and the transmission plate 8 away from the extrusion head 6 to reveal the welding position, thereby completing the switching of the blocking position.

[0029] As an optional implementation, the connection component includes: A connecting plate 16, the connecting plate 16 is slidably connected to the extrusion head 6 through a driving assembly; A fixing assembly, which is used to fix two adjacent connecting plates 16; A first card slot 17 is formed at one end of the connecting plate 16, and a second card slot 18 is formed at the other end of the connecting plate 16. A fixing member 19 is fixed inside the first card slot 17 and the second card slot 18. The fixing member 19 can be an electromagnetic fixing member or a mechanical buckle or other fixing member; The driving assembly includes a rack 20, which is fixed on the side wall of the connecting plate 16, and a gear 21 is meshed on one side of the rack 20, and the gear 21 is rotatably connected to the extrusion head 6, and a motor 22 is fixed on the extrusion head 6, and the motor 22 is coaxially fixed with the gear 21: Specifically, by starting the motor 22, the gear 21 is driven to rotate, and the gear 21 drives the rack 20 and the connecting plate 16 to move, so that the two adjacent connecting plates 16 are brought close to each other, so that the first card slot 17 of the connecting plate 16 contacts the second card slot 18 of the adjacent connecting plate 16, or the second card slot 18 of the connecting plate 16 contacts the first card slot 17 of the adjacent connecting plate 16. By setting the first card slot 17 and the second card slot 18 for docking, it is beneficial to better transmit the extrusion force and avoid sliding and misalignment of the connecting parts. After the card slot docking is completed, the two connecting plates 16 are fixed to each other by starting the magnetic attraction fixing member 19.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A welding process for embedding wear-resistant materials to enhance the wear resistance of wear-resistant parts, which is used to weld a substrate (1) and a plurality of wear-resistant blocks in a groove (2) on its surface through a welding material to obtain a welded part. It is characterized in that The welding process includes the following steps: A1. Identify the groove walls on both sides of the groove (2) on the substrate (1) and determine the wall thickness parameters of the groove (2) at the corresponding position of each wear-resistant block; A2. Determine the extrusion pressure parameters of the wear block according to the wall thickness parameters of the groove (2); A3. Start the extrusion device according to the extrusion pressure parameters to extrude and position the wear-resistant block; A4. Filling the gap between the wear-resistant block and the base plate (1) with welding material; A5. Start the welding machine (3) to weld the weld seam that is not blocked by the wear-resistant block; A6. After the welding of the weld seam that is not blocked by the wear-resistant block is completed, adjust the extrusion device of the wear-resistant block to dock and fix it with the extrusion device of the adjacent wear-resistant block, and switch the blocking position of the extrusion device on the weld seam; A7. Start the welding machine (3) to weld the exposed weld and the next wear-resistant block.

2. A welding process for embedding wear-resistant materials to enhance the wear resistance of wear-resistant parts according to claim 1, It is characterized in that The number of the extrusion devices in step A3 is equal to the number of the wear-resistant blocks, and the extrusion devices include: A pulling member (4), wherein the pulling member (4) is slidably connected to a processing table (5) of a welding machine (3); An extrusion head (6), wherein a sleeve (7) is disposed on the top of the extrusion head (6), a transmission plate (8) is slidably connected inside the sleeve (7), and the transmission plate (8) is fixed to the pulling end of the pulling member (4); A connecting component, wherein the connecting component is used to fix an extrusion head (6) connected thereto with an adjacent extrusion head (6).

3. A welding process for embedding wear-resistant materials to enhance the wear resistance of wear-resistant parts according to claim 2, It is characterized in that The connection component comprises: A connecting plate (16), wherein the connecting plate (16) is slidably connected to the extrusion head (6) via a driving assembly; A fixing component, wherein the fixing component is used to fix two adjacent connecting plates (16).

4. A welding process for embedding wear-resistant materials to enhance the wear resistance of wear-resistant parts according to claim 2, It is characterized in that Step A1 includes: After obtaining the wall thickness parameters of the groove (2) at the corresponding position of each wear-resistant block, determining the wall thickness change information according to the wall thickness parameters of the plurality of grooves (2); Generate regional information according to the wall thickness variation information, wherein the regional information includes first regional information of irregular wall thickness variation, second regional information of regular wall thickness increase, and third regional information of regular wall thickness decrease; The order of the docking modes is determined according to the area information, and the docking modes include a first docking mode adapted to the first area information, a second docking mode adapted to the second area information, and a third docking mode adapted to the third area information.

5. A welding process for embedding wear-resistant materials to enhance the wear-resistant performance of wear-resistant parts according to claim 4, It is characterized in that The specific docking method of the first docking mode includes: A601. When the weld of the unobstructed wear-resistant block is completed, the extrusion pressure parameters of the adjacent wear-resistant block and the extrusion pressure parameters of the wear-resistant block are obtained; A602. Compare the extrusion pressure parameters of the adjacent wear-resistant blocks with the extrusion pressure parameters of the wear-resistant block, and generate extrusion pressure adjustment information, wherein the extrusion pressure adjustment information includes at least first adjustment information and second adjustment information, wherein the first adjustment information is used to adjust the extrusion pressure of the previous wear-resistant block to be the same as the extrusion pressure of the wear-resistant block, and the second adjustment information is used to adjust the extrusion pressure of the wear-resistant block to be the same as the extrusion pressure on one of the adjacent wear-resistant blocks; A603. Adjust the extrusion pressure of the corresponding wear-resistant block according to the extrusion pressure adjustment information; A604. Adjust the connection position of the extrusion device on the wear-resistant block to expose the obstructed welding position.

6. A welding process for embedding wear-resistant materials to enhance the wear resistance of wear-resistant parts according to claim 5, It is characterized in that Step A602 includes: When the extrusion pressure parameters of adjacent wear-resistant blocks are all smaller than the extrusion pressure parameters of the wear-resistant block, the extrusion pressure parameters of the adjacent wear-resistant blocks are compared to determine the target wear-resistant block, wherein the target wear-resistant block is the wear-resistant block with the larger extrusion pressure parameter in the comparison; generating third adjustment information according to the extrusion pressure parameter of the target wear-resistant block; The extrusion pressure of the wear-resistant block is adjusted according to the third adjustment information.

7. A welding process for embedding wear-resistant materials to enhance the wear-resistant performance of wear-resistant parts according to claim 4, It is characterized in that The specific docking method of the second docking mode includes: When the welding position of the wear-resistant block exposed is welded, the extrusion pressure parameter of the previous wear-resistant block is obtained to generate first adjustment information; According to the first adjustment information, the extrusion pressure of the previous wear-resistant block is adjusted to be equal to the extrusion pressure of the current wear-resistant block; The extrusion device on the previous wear-resistant block is adjusted to be connected with the extrusion device on the current wear-resistant block, and the shielding position is switched.

8. A welding process for embedding wear-resistant materials to enhance the wear-resistant performance of wear-resistant parts according to claim 4, It is characterized in that The specific docking method of the third docking mode includes: When the welding of the exposed welding position of the wear-resistant block is completed, the extrusion pressure parameter of the previous wear-resistant block is obtained to generate second adjustment information; According to the second adjustment information, the extrusion pressure of the wear-resistant block is adjusted to be equal to the extrusion pressure of the previous wear-resistant block; The extrusion device on the previous wear-resistant block is adjusted to be connected with the extrusion device on the current wear-resistant block, and the shielding position is switched.

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