Automatic surfacing welding machine for inner hole of large bearing seat

Abstract

The automatic surfacing welding machine for the inner hole of the large bearing seat is simple in structure and convenient to use. A thrust bearing of the automatic surfacing welding machine is clamped on a clamping jaw of a vertical lathe faceplate, a chuck is clamped in a vertical lathe tool clamp, then a workpiece is corrected, parameters such as the zero position and the working stroke are set, and finally the vertical lathe is started to rotate and the automatic surfacing welding machine is started to work. The automatic surfacing welding machine is high in automation degree, and manual participation is not needed in the whole process after a workpiece is adjusted. In this way, the automation degree of surfacing can be improved, the surfacing efficiency is improved, the surfacing time of workers is greatly saved, it is guaranteed that surfacing tasks are completed within the surfacing period, and economic benefits are improved. Meanwhile, the automatic surfacing welding machine can improve the surfacing welding precision, the surfacing welding quality problem generated in the manual surfacing welding process is avoided, and the surfacing welding error rate is reduced.

Description

Technical Field

[0001] The invention relates to an automatic surfacing welding machine for the inner hole of a large-scale bearing seat. Background Art

[0002] The cladding machine is a machine with the functions of cladding repair and strengthening of cemented carbide surface coatings such as tungsten carbide. It uses plasma arc as a heat source. The powder feeder on the cladding machine supplies powder to the cladding gun and blows it into the arc. The high temperature generated by the plasma arc is used to quickly heat the alloy powder and the substrate surface and melt, mix and diffuse them together. With the relative movement of the cladding gun and the workpiece, the liquid alloy gradually solidifies after the plasma arc leaves, forming a high-performance alloy cladding layer, thereby realizing the cladding process of strengthening and hardening the surface of the part.

[0003] The inner hole of the roller bearing seat in the continuous casting equipment of the steel plant is seriously worn after long-term use, and the roller bearing seat needs to be surfacing welded before processing. The existing surfacing welding method is often manual surfacing, which has low work efficiency and poor surfacing accuracy. It cannot guarantee the surfacing period and surfacing quality of the bearing seat, which has a serious impact on the repair work of the bearing seat. This surfacing welding method has poor versatility and low economic benefits, and is not suitable for high-efficiency surfacing. Summary of the invention

[0004] The present invention provides a large-scale bearing seat inner hole automatic surfacing machine to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0005] A large-scale automatic surfacing welding machine for the inner hole of a bearing seat comprises: a screw and a servo motor; the two ends of the screw are respectively connected with an upper bending section and a lower bending section; one end of the upper bending section is provided with a chuck for clamping on a vertical lathe tool clamp; one end of the lower bending section is connected with a thrust bearing for clamping a vertical lathe faceplate; one end face of the servo motor is connected with a screw drive sleeve; the output end of the servo motor is connected with a transmission mechanism; the transmission mechanism is installed inside the screw drive sleeve; the transmission mechanism comprises: a first bevel gear, a second bevel gear, a transmission shaft, a cylindrical gear and a gear nut; the output end of the servo motor is connected with the first bevel gear; the transmission shaft is rotatably installed inside the screw drive sleeve; the outside of the transmission shaft is fixed with a second bevel gear; the first bevel gear The wheel is meshed and connected with the second bevel gear; one end of the transmission shaft is keyed to a cylindrical gear; the gear nut is threadedly sleeved on the screw rod; the gear nut is meshed and connected with the cylindrical gear; a through hole for the screw rod to pass through is formed on the screw rod driving sleeve; the screw rod passes through the screw rod driving sleeve through the through hole; a cylinder seat is fixed on the outer side surface of the servo motor; the lower surface of the cylinder seat is an arc surface matching the outer side surface of the servo motor; a U-shaped groove is formed at one end of the cylinder seat away from the servo motor; a mounting recess for mounting the cylinder is relatively arranged at the top of the U-shaped groove; the mounting recess cooperates with the cylinder pressure cover to fix the cylinder to the cylinder seat; the output end of the cylinder is connected with a piston rod; a welding gun clamp mounting position for mounting the welding gun clamp is formed at one end of the piston rod.

[0006] As a preferred technical solution of the present invention, a gland recess is formed on one side of the cylinder gland close to the cylinder seat; the gland recess is semicircular; the mounting recess is semicircular; the gland recess is consistent in size with the mounting recess.

[0007] As a preferred technical solution of the present invention, threaded holes are formed at both ends of the top of the cylinder gland; the cylinder gland is fixed to the cylinder seat by screwing fixing bolts into the threaded holes.

[0008] As a preferred technical solution of the present invention, the welding gun clamp comprises: two upper and lower clamping pieces arranged opposite to each other; the clamping pieces are elastic clamping pieces.

[0009] As a preferred technical solution of the present invention, the middle part of the clip is an arc hole for fixing the welding gun; both ends of the clip are formed with fixing positions; screw holes are formed on the fixing positions; one opposite end of the clip is fixed to the welding gun clamp mounting position by screwing a hexagonal bolt into the screw hole; the other opposite end of the clip is locked and connected by a locking screw.

[0010] As a preferred technical solution of the present invention, the welding gun clamp installation position is flat.

[0011] As a preferred technical solution of the present invention, the thrust bearing is cylindrical; a connecting pile is arranged on one end surface of the thrust bearing; and one end of the lower bending section is embedded in the connecting pile.

[0012] The benefit of the present invention lies in that the automatic surfacing welding machine for the inner hole of a large bearing seat provided has a simple structure and is easy to use. The thrust bearing of the automatic surfacing welding machine is clamped on the claw of the vertical lathe faceplate, and the chuck is clamped in the vertical lathe tool clamp, and then the workpiece is calibrated, the zero position and working stroke and other parameters are set, and finally the vertical lathe rotation and the automatic surfacing welding machine are started. The automatic surfacing welding machine has a high degree of automation, and no manual participation is required throughout the process after the workpiece is adjusted. This can improve the degree of automation of surfacing welding, and then improve the efficiency of surfacing welding, greatly save the surfacing time of the staff, ensure that the surfacing task is completed within the surfacing period, and improve economic benefits. At the same time, the automatic surfacing welding machine can also improve the surfacing accuracy, avoid surfacing quality problems caused by manual surfacing during the process, and reduce the surfacing error rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of an automatic surfacing welding machine for inner hole of a large bearing seat involved in the present application;

[0015] Figure 2 yes Figure 1 A schematic diagram of a driving motor of a large-scale bearing seat inner hole automatic cladding machine;

[0016] Figure 3 yes Figure 1 A schematic diagram of a transmission mechanism of a large-scale bearing seat inner hole automatic cladding machine;

[0017] Figure 4 yes Figure 1 A schematic diagram of a cylinder of an automatic cladding welding machine for the inner hole of a large bearing seat.

[0018] A large-scale automatic surfacing welding machine for the inner hole of a bearing seat 10, a screw 11, a servo motor 12, an upper bending section 13, a lower bending section 14, a chuck 15, a thrust bearing 16, a connecting pile 161, a screw drive sleeve 17, a through hole 171, a transmission mechanism 18, a first bevel gear 181, a second bevel gear 182, a transmission shaft 183, a cylindrical gear 184, a gear nut 185, a cylinder seat 19, a U-shaped groove 191, a mounting recess 192, a cylinder gland 20, a threaded hole (not shown), a fixing bolt 201, a cylinder 21, a piston rod 22, a welding gun clamp mounting position 221, a welding gun clamp 23, a clip 231, an arc hole 232, a fixing position 233, a hexagonal bolt (not shown), a screw hole (not shown), and a locking screw 234. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] like Figure 1-4As shown, a large-scale automatic surfacing machine 10 for inner hole of a bearing seat of the present application is shown, comprising: a screw 11 and a servo motor 12. The two ends of the screw 11 are respectively connected with an upper bending section 13 and a lower bending section 14. A chuck 15 is provided at one end of the upper bending section 13, and the chuck 15 is used to clamp on the vertical lathe tool clamp to fix the automatic surfacing machine. A thrust bearing 16 is connected at one end of the lower bending section 14, and the thrust bearing 16 is used to clamp the vertical lathe faceplate to support the entire automatic surfacing machine. A screw drive sleeve 17 is connected to one end face of the servo motor 12. A transmission mechanism 18 is connected to the output end of the servo motor 12. The transmission mechanism 18 is installed inside the screw drive sleeve 17. The transmission mechanism 18 comprises: a first bevel gear 181181, a second bevel gear 182, a transmission shaft 183, a cylindrical gear 184 and a gear nut 185. The output end of the servo motor 12 is connected with a first bevel gear 181. The transmission shaft 183 is rotatably mounted inside the screw drive sleeve 17. A second bevel gear 182 is fixed to the outside of the transmission shaft 183. The first bevel gear 181 and the second bevel gear 182 are meshed and connected. A cylindrical gear 184 is keyed to one end of the transmission shaft 183. A gear nut 185 is threadedly sleeved on the screw 11. The gear nut 185 is meshed and connected with the cylindrical gear 184. A through hole 171 is formed on the screw drive sleeve 17 for the screw 11 to pass through. The screw 11 passes through the screw drive sleeve 17 through the through hole 171. The output end of the servo motor 12 drives the first bevel gear 181 to rotate, and the transmission direction of the servo motor 12 is changed by the setting of the second bevel gear 182. The second bevel gear 182 drives the transmission shaft 183 fixed thereon to rotate, thereby driving the cylindrical gear 184 on the transmission shaft 183 to rotate, and the gear nut 185 meshed with the cylindrical gear 184 rotates accordingly, and then the entire welding equipment can be driven to move up and down on the screw 11. The servo motor 12 provides power for the up and down movement of the automatic surfacing machine. A cylinder seat 19 is fixed to the outer side of the servo motor 12, and the lower surface of the cylinder seat 19 is an arc surface that matches the outer side of the servo motor 12. A U-shaped groove 191 is formed at one end of the cylinder seat 19 away from the servo motor 12. A mounting recess 192 is relatively arranged at the top of the U-shaped groove 191 for mounting the cylinder 21. The mounting recess 192 cooperates with the cylinder 21 pressure cover 20 to fix the cylinder 21 to the cylinder seat 19. The cylinder 21 drives the automatic surfacing machine to move forward and backward. The output end of the cylinder 21 is connected to a piston rod 22. A welding gun clamp mounting position 221 is formed at one end of the piston rod 22 for mounting the welding gun clamp 23.

[0023] As a further solution, a gland recess is formed on one side of the gland 20 of the cylinder 21 close to the cylinder seat 19. The gland recess is semicircular, and the mounting recess 192 is semicircular. The gland recess is the same size as the mounting recess 192 and is consistent with the outer diameter of the cylinder 21, so that the cylinder 21 can be fixed to the cylinder seat 19.

[0024] As a further solution, threaded holes are formed at both ends of the top of the cylinder 21 gland 20. The cylinder 21 gland 20 is fixed to the cylinder seat 19 by screwing the fixing bolts 201 into the threaded holes.

[0025] As a further solution, the welding gun clamp 23 includes: two upper and lower clips 231 arranged opposite to each other, and the clip 231 is an elastic clip 231. The middle part of the clip 231 is an arc hole 232 for fixing the welding gun. Both ends of the clip 231 are formed with a fixing position 233. The fixing position 233 is formed with a screw hole. One opposite end of the clip 231 is fixed to the welding gun clamp mounting position 221 by screwing a hexagonal bolt into the screw hole. The other opposite end of the clip 231 is locked and connected by a locking screw 234. The design of the elastic clip 231 facilitates the installation of the welding gun on the welding gun clamp 23, and there is no need to disassemble the welding gun clamp 23 during the installation process, thereby improving the surfacing efficiency.

[0026] As a further solution, the welding gun clamp installation position 221 is flat, which is convenient for installing the welding gun clamp 23 .

[0027] As a further solution, the thrust bearing 16 is cylindrical and supports the entire automatic surfacing machine. A connecting pile 161 is provided on one end surface of the thrust bearing 16. One end of the lower bending section 14 is connected to the connecting pile 161.

[0028] 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 above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A large bearing seat inner hole automatic surfacing machine, characterized in that: include: Lead screw and servo motor; The two ends of the screw rod are respectively connected with an upper bending section and a lower bending section; One end of the upper bending section is provided with a chuck for clamping on a vertical lathe tool holder; One end of the lower bending section is connected to a thrust bearing for clamping the vertical lathe faceplate; One end surface of the servo motor is connected to a screw drive sleeve; The output end of the servo motor is connected to a transmission mechanism; The transmission mechanism is installed inside the screw drive sleeve; The transmission mechanism comprises: a first bevel gear, a second bevel gear, a transmission shaft, a cylindrical gear and a gear nut; The output end of the servo motor is connected to the first bevel gear; The transmission shaft is rotatably mounted inside the screw drive sleeve; The second bevel gear is fixed to the outside of the transmission shaft; The first bevel gear and the second bevel gear are meshingly connected; One end of the transmission shaft is keyed to the cylindrical gear; The gear nut is threadedly sleeved on the screw rod; The gear nut is meshingly connected with the cylindrical gear; The screw drive sleeve is formed with a through hole for the screw to pass through; The screw rod passes through the screw rod driving sleeve through the through hole; A cylinder seat is fixed on the outer side of the servo motor; The lower surface of the cylinder seat is an arc surface matching the outer side surface of the servo motor; A U-shaped groove is formed at one end of the cylinder seat away from the servo motor; The top of the U-shaped groove is oppositely provided with a mounting recess for mounting the cylinder; The mounting recess cooperates with the cylinder gland to fix the cylinder to the cylinder seat; The output end of the cylinder is connected to a piston rod; A welding gun clamp mounting position for mounting a welding gun clamp is formed at one end of the piston rod.

2. According to claim 1, a large bearing seat inner hole automatic surfacing machine is characterized in that: A gland recess is formed on one side of the cylinder gland close to the cylinder seat; The gland recess is semicircular; The mounting recess is semicircular; The size of the gland recess is consistent with that of the mounting recess.

3. The large bearing seat inner hole automatic surfacing machine according to claim 2 is characterized in that: Threaded holes are formed at both ends of the top of the cylinder gland; The cylinder gland is fixed to the cylinder seat by screwing fixing bolts into the threaded holes.

4. The large bearing seat inner hole automatic surfacing machine according to claim 1 is characterized in that: The welding gun clamp comprises: two upper and lower clamping pieces arranged opposite to each other; The clip is an elastic clip.

5. The large bearing seat inner hole automatic surfacing machine according to claim 4 is characterized in that: The middle part of the clip is a circular arc hole for fixing the welding gun; Both ends of the clip are formed with fixing positions; A screw hole is formed on the fixing position; One opposite end of the clip is screwed into the screw hole by a hexagonal bolt and fixed to the welding gun clamp mounting position; the other opposite end of the clip is locked and connected by a locking screw.

6. The large bearing seat inner hole automatic surfacing machine according to claim 5, characterized in that: The welding gun clamp installation position is flat.

7. The large bearing seat inner hole automatic surfacing machine according to claim 1 is characterized in that: The thrust bearing is cylindrical; A connecting pile is provided on one end surface of the thrust bearing; One end of the lower bending section is connected to the connecting pile.

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