Novel grinding head unit for horizontal lathe

Abstract

The utility model provides a novel grinding head unit for a horizontal lathe, which comprises a grinding wheel cover, a grinding wheel chuck, a pressure plate, a grinding wheel, a grinding tool balance block, a framework oil seal, a sealing sleeve, a conical bore bearing, a bearing chamber, a grinding wheel shaft, a rack, a bearing, an inner spacing ring, an outer spacing ring, an oil injection cup, an inner tooth elastic coupling, a connecting frame and a motor. The grinding machine is simple in structure, safe and reliable, stable connection of the grinding wheel and supporting performance of assembly can be guaranteed through the grinding wheel chuck and the pressing disc arranged on the two sides of the grinding wheel, meanwhile, balance block grooves are formed in the pressing disc and the grinding wheel chuck respectively, the multiple balance block grooves are formed in the circumferential direction of the pressing disc and the grinding wheel chuck at intervals, and grinding tool balance blocks are arranged in the balance block grooves. Dynamic balance weight arrangement of the grinding wheel on the connecting parts on the two sides can be stably achieved through the arranged grinding tool balance blocks, so that the dynamic balance stability of the grinding wheel is improved, the surface quality of a grinding workpiece is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of external cylindrical grinding head parts of horizontal lathes, in particular to a novel grinding head unit used for horizontal lathes. Background Art

[0002] A horizontal lathe is a machine tool used to process workpieces, usually for the outer diameter of rotationally symmetrical workpieces, that is, grinding the outer circle. A horizontal lathe processes the outer diameter of a workpiece by rotating the workpiece and grinding it with a grinding wheel. The workpiece is usually clamped on a spindle, and then the spindle and grinding wheel rotate simultaneously to remove unwanted material from the outside of the workpiece, thereby achieving precise processing of the outer circle.

[0003] Main components: The main components of a horizontal lathe include the spindle, grinding wheel head, bed, crossbeam on the bed, feed system, tool holder and tailstock. The spindle is responsible for rotating the workpiece, the grinding wheel head rotates the grinding wheel, the bed is used to support and position the workpiece, the feed system is used to control the cutting feed speed, the tool on the tool holder is responsible for the cutting operation, and the tailstock supports the other end of the workpiece.

[0004] Precision and surface quality: Horizontal lathes can provide high-precision outer diameter grinding, so they are suitable for workpieces that require high precision and surface quality. This is especially important for the manufacture of bearings, pins, sleeves and other parts that require precision machining.

[0005] Automation and CNC: Modern horizontal lathes are often equipped with automation and CNC systems, which make the machining of workpieces more efficient and repeatable. CNC horizontal lathes can automatically control the cutting speed, feed rate and position of the grinding wheel according to a preset program to obtain more consistent machining results.

[0006] Versatility: Some horizontal lathes also have multiple functions, such as internal and external cylindrical grinding, thread processing, gear processing, etc. This makes them suitable for processing a variety of workpieces.

[0007] Lubrication and cooling system: During the machining process, the grinding wheel and the workpiece will be subjected to high temperature and friction, so the horizontal lathe is usually equipped with a cooling system to ensure that the workpiece and the grinding wheel are not overheated. At the same time, the lubrication system is also used to reduce wear and extend the life of the machine tool.

[0008] Horizontal lathes that can grind the outer diameter of the workpiece are an important machine tool for high-precision workpiece processing. They provide high-precision and high-surface quality processing results by grinding the outer diameter of the workpiece with a grinding wheel. These machine tools are widely used in manufacturing, automotive industry, aerospace and other fields.

[0009] In actual production, the grinding head mounted on the horizontal lathe vibrates due to the imbalance of the grinding wheel, especially the high-speed rotating grinding wheel, which not only reduces the surface quality of the ground workpiece, but also shortens the service life and operating accuracy of the lathe. Utility Model Content

[0010] In view of this, the technical problem to be solved by the present invention is: how to provide a new grinding head unit for a horizontal lathe to improve the rotation stability and lathe processing quality.

[0011] To achieve the above-mentioned purpose, the utility model provides a new type of grinding head unit for a horizontal lathe, which includes a grinding wheel cover, a grinding wheel chuck, a pressure plate, a grinding wheel, a grinding tool balance block, a skeleton oil seal, a sealing sleeve, a tapered bore bearing, a bearing chamber, a grinding wheel shaft, a frame, a bearing, an inner spacer ring, an outer spacer ring, an oil filling cup, an inner gear elastic coupling, a connecting frame, and a motor;

[0012] The grinding wheel chuck is connected to the grinding wheel shaft, and the grinding wheel shaft drives the grinding wheel chuck to rotate. The grinding wheel is connected to the grinding wheel chuck, and the rotation of the grinding wheel chuck drives the grinding wheel to rotate. The pressure plate is connected to the end of the grinding wheel shaft by a fastener so that the pressure plate is pressed against the grinding wheel.

[0013] The pressure plate and the grinding wheel chuck are respectively provided with balancing block grooves, and a plurality of the balancing block grooves are respectively arranged at intervals along the circumferential direction of the pressure plate and the grinding wheel chuck, and the abrasive tool balancing blocks are arranged in the balancing block grooves;

[0014] The bearing chamber is fixedly arranged on the frame, the left end of the grinding wheel shaft is supported by the tapered hole bearing, and the tapered hole bearing is restricted from moving in the left axial direction by the sealing sleeve, the round nut and the round nut stop washer;

[0015] The right end of the grinding wheel shaft is supported by a pair of bearings, and the inner and outer rings of the bearings are respectively positioned by the grinding wheel shaft shoulder, the frame hole shoulder, the inner spacer ring, the outer spacer ring, the connecting frame, the round nut at the right end and the round nut stop washer. The motor is fixed to the connecting frame by bolts, and the motor and the grinding wheel shaft are connected by the coupling.

[0016] Furthermore, the grinding wheel chuck and the grinding wheel shaft cooperate with each other through a conical surface to limit the axial movement of the grinding wheel chuck.

[0017] Furthermore, the connection between the grinding wheel and the grinding wheel chuck is an interference fit.

[0018] Furthermore, the mold balancing block is fixedly connected to the balancing block slot by a fastener.

[0019] Compared with the related art, the utility model proposes a new type of grinding head unit for a horizontal lathe, which has the following beneficial effects: the outer cylindrical grinding head component has a compact structure, is safe and reliable, and the grinding wheel chuck and pressure plate arranged on both sides of the grinding wheel can ensure the stable connection and assembly support of the grinding wheel. At the same time, balancing block grooves are respectively arranged on the pressure plate and the grinding wheel chuck, and multiple balancing block grooves are respectively arranged at intervals along the circumferential direction of the pressure plate and the grinding wheel chuck. Abrasive tool balancing blocks are arranged in the balancing block grooves, and the arranged abrasive tool balancing blocks can stably realize the dynamic balancing weight setting of the grinding wheel on the connecting components on both sides, thereby improving the dynamic balancing stability of the grinding wheel, improving the surface quality of the ground workpiece, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a new grinding head unit for a horizontal lathe in an embodiment of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of a new grinding head unit for a horizontal lathe in an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the pressure plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] See also Figure 1-3 As shown, the utility model provides a new type of grinding head unit for a horizontal lathe, which includes an external cylindrical grinding head including a grinding wheel cover 1, a grinding wheel chuck 2, a pressure plate 3, a grinding wheel 4, a grinding tool balance block 5, a skeleton oil seal 6, a sealing sleeve 7, a tapered hole bearing 8, a bearing chamber 9, a grinding wheel shaft 10, a frame 11, a bearing 12, an inner spacer ring 13, an outer spacer ring 14, an oil filling cup 15, an internal tooth elastic coupling 16, a connecting frame 17, and a motor 18.

[0025] The grinding wheel chuck 2 is matched with the grinding wheel shaft 10 through a conical surface, and the axial rightward movement of the grinding wheel chuck 2 is restricted. The grinding wheel 4 is connected to the grinding wheel chuck 2 in an interference fit manner.

[0026] The left end of the grinding wheel shaft 10 is pressed tightly against the grinding wheel 4 by tightening the left-handed nut. Balance block grooves are respectively arranged on the pressure plate 3 and the grinding wheel chuck 2. Multiple balance block grooves are respectively arranged at intervals along the circumferential direction of the pressure plate 3 and the grinding wheel chuck 2. A grinding tool balance block 5 is arranged in the balance block groove. According to the static balance test result, the grinding tool balance block 5 is placed in the balance block groove of the pressure plate 3 or the grinding wheel chuck 2 and fixed with a set screw. The set grinding tool balance block 5 can stably realize the dynamic balance weight setting on the connecting parts on both sides of the grinding wheel 4, thereby improving the dynamic balance stability of the grinding wheel 4 and ensuring the processing quality of the outer circle.

[0027] The bearing chamber 9 is fixed to the frame 11 by bolt connection, the left end of the grinding wheel shaft 10 is supported by the tapered hole bearing 8, and the tapered hole bearing 8 is limited by the sealing sleeve 7, the round nut and the round nut stop washer to limit the left axial movement, the right end of the grinding wheel shaft 10 is supported by a pair of bearings 12, and the inner and outer rings of the bearing 12 are respectively positioned by the shoulder of the grinding wheel shaft 10, the shoulder of the frame 11, the inner spacer ring 13, the outer spacer ring 14, the connecting frame 17, the round nut at the right end and the round nut stop washer, the motor 18 is fixed to the connecting frame 17 by bolt connection, the motor 18 and the grinding wheel shaft 10 are connected by a coupling, the grinding wheel cover 1 and the connecting frame 17 are fixed to the frame 11 by bolt connection, and the frame 11 is fixed to the slide box of the lathe by bolt connection.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A new grinding head unit for a horizontal lathe, characterized in that: It includes a grinding wheel cover, a grinding wheel chuck, a pressure plate, a grinding wheel, a grinding tool balance block, a skeleton oil seal, a sealing sleeve, a tapered bore bearing, a bearing chamber, a grinding wheel shaft, a frame, a bearing, an inner spacer ring, an outer spacer ring, an oil filling cup, an inner gear elastic coupling, a connecting frame, and a motor; The grinding wheel chuck is connected to the grinding wheel shaft, and the grinding wheel shaft drives the grinding wheel chuck to rotate. The grinding wheel is connected to the grinding wheel chuck, and the rotation of the grinding wheel chuck drives the grinding wheel to rotate. The pressure plate is connected to the end of the grinding wheel shaft by a fastener so that the pressure plate is pressed against the grinding wheel. The pressure plate and the grinding wheel chuck are respectively provided with balancing block grooves, and a plurality of the balancing block grooves are respectively arranged at intervals along the circumferential direction of the pressure plate and the grinding wheel chuck, and the abrasive tool balancing blocks are arranged in the balancing block grooves; The bearing chamber is fixedly arranged on the frame, the left end of the grinding wheel shaft is supported by the tapered hole bearing, and the tapered hole bearing is restricted from moving in the left axial direction by the sealing sleeve, the round nut and the round nut stop washer; The right end of the grinding wheel shaft is supported by a pair of bearings, and the inner and outer rings of the bearings are respectively positioned by the grinding wheel shaft shoulder, the frame hole shoulder, the inner spacer ring, the outer spacer ring, the connecting frame, the round nut at the right end and the round nut stop washer. The motor is fixed to the connecting frame by bolts, and the motor and the grinding wheel shaft are connected by the coupling.

2. The novel grinding head unit for a horizontal lathe according to claim 1, characterized in that: The grinding wheel chuck and the grinding wheel shaft are matched through a conical surface to limit the axial movement of the grinding wheel chuck.

3. The novel grinding head unit for a horizontal lathe according to claim 1, characterized in that: The connection between the grinding wheel and the grinding wheel chuck is an interference fit.

4. The novel grinding head unit for a horizontal lathe according to claim 1, characterized in that: The mold balancing block is fixedly connected in the balancing block slot by a fastener.

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