High-speed end face cylindrical grinding machine

Abstract

The utility model relates to the technical field of cylindrical grinding machines, and provides a high-speed end face cylindrical grinding machine which comprises a machine frame, a headstock and a tailstock, the headstock and the tailstock are arranged on the machine frame in a sliding mode in the X-axis direction, a first ejector rod is rotationally arranged on the headstock, a second ejector rod is rotationally arranged on the tailstock, and after the headstock and the tailstock slide on the machine frame, the first ejector rod and the second ejector rod are matched. The first ejector rod and the second ejector rod get close to each other or get away from each other, the first ejector rod and the second ejector rod are used for clamping a workpiece after getting close to each other, and the first driving unit is used for driving the first ejector rod to rotate; by means of the technical scheme, the problems that in the prior art, the grinding process is low in production efficiency, and the diameter difference among multiple outer circles and the axial size among multiple end faces need to be guaranteed by grinding machine operators with rich experience are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cylindrical grinder, specifically, relates to a high -speed end face cylindrical grinder. BACKGROUND

[0002] There are many shaft parts of multiple cylindrical surfaces and multiple end faces in the automobile, motorcycle and motor industries in China. When grinding such parts by using equipment similar to M1432*750 universal cylindrical grinder, the grinding process needs to jump grinding multiple cylindrical surfaces and grinding shoulder end face for multiple times, the grinding process production efficiency is low, and the diameter difference between multiple cylindrical surfaces and the axial size between multiple end faces need to be ensured by experienced grinder operators. SUMMARY

[0003] The utility model provides a high -speed end face cylindrical grinder, solved the problem that the grinding process production efficiency is low in the prior art, the diameter difference between multiple cylindrical surfaces and the axial size between multiple end faces need to be ensured by experienced grinder operators.

[0004] The technical scheme of the utility model is as follows:

[0005] A high -speed end face cylindrical grinder, including frame and headstock and tailstock along X axle direction slidingly arranged on the frame, first top rod is rotationally arranged on the headstock, second top rod is rotationally arranged on the tailstock, after the headstock and the tailstock slide on the frame, the first top rod and the second top rod are close to each other or away from each other, the first top rod and the second top rod are close to each other, for clamping workpiece, still include the first drive unit for driving the rotation of the first top rod;

[0006] The frame is also slidingly provided with a grinding wheel assembly, the grinding wheel assembly is used for polishing work to the workpiece, the grinding wheel assembly includes a sliding frame slidingly arranged on the frame, the sliding frame is provided with a supporting bearing and a transmission shaft arranged in the supporting bearing for transmission, the supporting bearing has an involute oil wedge, the transmission shaft is provided with a grinding wheel, and the second drive unit for driving the rotation of the transmission shaft is arranged on the sliding frame.

[0007] As a further technical scheme, the frame is T-shaped, the headstock, the tailstock and the sliding frame are arranged on the first end, the second end and the third end of the frame respectively, and the sliding direction of the sliding frame and the X axis direction are arranged at 60 °.

[0008] As a further technical scheme, the frame is also provided with a water collecting groove, and the water collecting groove is located below the headstock and the tailstock.

[0009] As a further technical solution, it further comprises a sliding plate slidingly arranged on the frame, the head frame and the tail frame are slidingly arranged on the sliding plate, the sliding plate is arranged on the frame through the sliding plate, the frame is provided with a first rotating lead screw threaded on the sliding plate and a third driving unit for driving the first rotating lead screw to rotate, after the first rotating lead screw rotates, the sliding plate is driven to slide on the frame along the X-axis direction.

[0010] As a further technical solution, the tail frame and the head frame are provided with two groups of mounting blocks on the two sides of the bottom, the two mounting blocks are provided with inclined surfaces on one side close to each other, the mounting blocks are threaded on the tail frame through top pins, the two inclined surfaces and the bottom of the tail frame form a dovetail groove, and the head frame and the tail frame are slidingly arranged on the sliding plate through the dovetail groove.

[0011] As a further technical solution, the tail frame is provided with a lever for driving the tail frame to slide on the sliding plate.

[0012] As a further technical solution, the frame is provided with a second rotating lead screw threaded on the sliding frame and a fourth driving unit for driving the second rotating lead screw to rotate, after the second rotating lead screw rotates, the sliding frame is driven to slide on the frame.

[0013] As a further technical solution, the water collecting groove is provided with a water outlet, and the water outlet is communicated with the outside.

[0014] As a further technical solution, it further comprises a shell, and the shell is arranged on the frame.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] The utility model discloses a workpiece is placed in high -speed end face outer circle grinding machine's work area to be polished. First, the sliding adjusting device of headstock and tailstock is started, and headstock and tailstock slide on the rack along X axle direction. With the sliding of both, the first jib of rotation setting on the headstock and the second jib on the tailstock gradually approach each other, until stably clamping the workpiece, to guarantee the stability of workpiece in the subsequent polishing process. Then, the first drive unit is started, and the first drive unit drives the first jib to rotate, thereby driving the clamped workpiece to start rotating at a constant speed. The grinding wheel assembly is also ready on the rack. The sliding frame has been accurately installed on the slide of the rack, the support bearing is stably located in the sliding frame, the transmission shaft is smoothly nested in the support bearing, and thanks to the involute oil wedge on the support bearing, the transmission shaft can obtain good lubrication and stable support when rotating at high speed. Install the grinding wheel firmly on the transmission shaft, and start the second drive unit arranged in the sliding frame. Under the drive of powerful force, the second drive unit drives the transmission shaft to rotate quickly, so that the grinding wheel rotates rapidly. Then, the control device is operated, and the sliding frame with the high-speed rotating grinding wheel slowly approaches the workpiece along the predetermined track. When the grinding wheel contacts the workpiece surface, it starts to polish the workpiece finely. With the cooperation of various components, the workpiece is gradually polished to the size and precision required by the process. The present scheme replaces the traditional equal-depth oil wedge or eccentric oil wedge with an involute oil wedge on the support bearing, which is convenient for dynamic pressure formation, increases the dynamic pressure of the main shaft after rotation, increases the support rigidity of the main shaft, and increases the main shaft diameter and oil wedge width, so that the main shaft can install a wider diameter and larger grinding wheel, thereby improving the work efficiency and reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail in connection with the drawings and specific embodiment.

[0018] Figure 1 It is the first view angle shaft type structure schematic diagram of the utility model;

[0019] Figure 2 It is the second view angle shaft type structure schematic diagram of the utility model;

[0020] Figure 3 It is Figure 2 It is the A place local enlargement structure schematic diagram of;

[0021] Figure 4 It is the third view angle shaft type structure schematic diagram of the utility model;

[0022] Figure 5 It is the B place local enlargement structure schematic diagram of; Figure 4

[0023] ​Figure 6 It is a top view structure schematic diagram of the utility model.

[0024] In the drawing: 1, rack, 2, head frame, 3, tail frame, 4, first top rod, 5, second top rod, 6, first drive unit, 7, piece, 8, sliding frame, 9, support bearing, 10, transmission shaft, 11, involute oil wedge, 12, grinding wheel, 13, second drive unit, 14, first end, 15, second end, 16, third end, 17, water collecting groove, 18, sliding plate, 19, first rotating lead screw, 20, third drive unit, 21, mounting block, 22, inclined surface, 23, dovetail groove, 24, lever, 25, second rotating lead screw, 26, fourth drive unit, 27, water outlet, 28, shell. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0026] EMBODIMENT

[0027] As shown in Figure 1 , Figure 2 and Figure 5 , the shown one 32 series high-speed end face cylindrical grinder includes a rack 1 and a sliding plate 18 arranged along the Z-axis direction, a head frame 2 and a tail frame 3 arranged on the sliding plate 18, a first top rod 4 arranged on the head frame 2, a second top rod 5 rotatably arranged on the tail frame 3, after the head frame 2 and the tail frame 3 are fixed on the sliding plate 18, the second top rod 5 is telescopic under the action of a lever 24, after the second top rod 5 is extended, it is clamped with the first top rod 4 to hold a workpiece, and it further includes a first drive unit 6 for driving the first top rod 4 to rotate.

[0028] The rack 1 is further provided with a grinding wheel assembly 7 slidingly arranged thereon, the grinding wheel assembly 7 is used for grinding the workpiece, the grinding wheel assembly 7 is arranged on a sliding frame 8 arranged on the rack 1, the sliding frame 8 is provided with a support bearing 9 and a transmission shaft 10 arranged in the support bearing 9 and used for transmission, the support bearing 9 has an involute oil wedge 11, the transmission shaft 10 is provided with a grinding wheel 12, and it further includes a second drive unit 13 arranged on the sliding frame 8 and used for driving the transmission shaft 10 to rotate.

[0029] In this embodiment, first according to the workpiece length manual adjustment of the headstock 2 and the tailstock frame 3 on the slide plate 18, the position of the top rod 4 and the top rod 5 can be tightly against the workpiece. Then move the shift lever 24 to retract the top rod 5, the workpiece to be polished is placed in the working area of the high-speed end face cylindrical grinder, the workpiece to be polished is placed in the working area of the high-speed end face cylindrical grinder, and the workpiece to be polished is placed in the working area of the high-speed end face cylindrical grinder. The workpiece to be polished is placed in the working area of the high-speed end face cylindrical grinder. Loosen the shift lever 24, the top rod 5 extends until it stably clamps the workpiece, so as to ensure the stability of the workpiece in the subsequent polishing process. Then, start the first drive unit 6, the first drive unit 6 drives the center clamping head to rotate, thereby driving the clamped workpiece to start rotating at a constant speed. The grinding wheel assembly 7 arranged on the rack 1 is also ready. The slide frame 8 has been accurately installed on the slide of the rack 1 in advance, the support bearing 9 is stably located in the slide frame 8, the transmission shaft 10 is smoothly nested in the support bearing 9, and the transmission shaft 10 can be lubricated and stably supported when rotating at high speed due to the involute oil wedge 11 on the support bearing 9. The grinding wheel 12 is firmly installed on the transmission shaft 10, and the second drive unit 13 arranged on the slide frame 8 is started. Under the drive of the powerful force, the second drive unit 13 drives the transmission shaft 10 to rotate quickly, so that the grinding wheel 12 rotates rapidly. Then, operate the control device, let the slide frame 8 slowly approach the workpiece along the predetermined track with the high-speed rotating grinding wheel 12, when the grinding wheel 12 contacts the surface of the workpiece, the fine polishing work of the workpiece is started. With the cooperation of each part, the workpiece is gradually polished to the size and precision required by the process, and the involute oil wedge 11 is arranged on the support bearing 9 instead of the traditional equal-depth oil wedge or eccentric oil wedge, which is convenient for the formation of dynamic pressure, increases the dynamic pressure of the main shaft after rotating, increases the support rigidity of the main shaft, and increases the diameter of the main shaft and the width of the oil wedge. The main shaft can be installed with a wider diameter and larger grinding wheel 12, thereby improving the work efficiency and reducing the production cost.

[0030] As shown in Figure 1 and Figure 2 , as a further technical solution, the rack 1 is T-shaped, the slide plate 18 is located between the first end 14 and the second end 15 of the rack 1, the slide frame 8 is arranged on the third end 16 of the rack 1, and the sliding direction of the slide frame 8 and the Z-axis direction are arranged at 60°.

[0031] In this embodiment, the rack 1 is T-shaped, which provides a stable and reasonable framework for the layout of each component. The sliding direction of the slide frame 8 and the Z-axis direction are cleverly arranged at 60°. When the grinding wheel 12 contacts the end face and the outer circle of the workpiece at the same time, the polishing stress is more uniform and efficient, avoiding the polishing defects that may occur at the conventional angle. Gradually reduce the excess part of the workpiece from all directions, accurately mold the product shape that meets the high-precision requirements, and make the workpiece surface roughness, roundness and other parameters meet the standards.

[0032] As shown in Figure 2 As a further technical solution, the rack 1 is also provided with a water collecting groove 17, which is located below the sliding plate 18 and the headstock 2 and the tailstock 3.

[0033] In this embodiment, during the grinding process, the cooling liquid is continuously sprayed on the grinding area, and the cooling liquid carries the metal chips generated by grinding flying around. At this time, the water collecting groove 17 carefully arranged on the rack 1 plays a key role. The water collecting groove 17 is stably arranged below the headstock 2 and the tailstock 3, and the position is just right. The splashing cooling liquid and metal chips fall directly into the water collecting groove 17 under the action of gravity. Because the water collecting groove 17 has sufficient depth and width, even if the grinding operation lasts for a long time and generates a large amount of chips and waste liquid, it can also accommodate it without pressure. After a round of grinding process, the operator only needs to simply clean the mixed waste liquid and chips in the water collecting groove 17 to prepare for the next round of grinding, greatly simplifying the cleaning process of the workshop, avoiding the random flow of cooling liquid and chips to pollute the working environment, maintaining the cleanliness of the entire grinding machine surrounding area, and ensuring the accuracy of subsequent processing is not disturbed by external impurities.

[0034] As shown in Figure 3 As a further technical solution, the sliding plate 18 is slidingly arranged on the rack 1, the headstock 2 and the tailstock 3 are slidingly arranged on the sliding plate 18, the sliding plate 18 is arranged on the rack 1, the first rotating lead screw 19 is arranged on the rack 1, the transmission nut is arranged on the sliding plate 18, the third driving unit 20 for driving the first rotating lead screw 19 to rotate is arranged on the rack 1, and the first rotating lead screw 19 is arranged on the rack 1. After rotating, the sliding plate 18 is used to drive the sliding plate 18 to slide on the rack 1 along the Z-axis direction.

[0035] In this embodiment, the headstock 2 and the tailstock 3 are arranged on the sliding plate 18, and the sliding plate 18 is slidingly arranged on the rack 1 through the first rotating lead screw 19 and the third driving unit 20. When the third driving unit 20 is driven, the first rotating lead screw 19 rotates and drives the sliding plate 18 and the headstock 2 and the tailstock 3 above the sliding plate 18 to move along the X-axis direction at the same time, so that the workpiece located between the first top rod 4 and the second top rod 5 Different positions of the outer circle and the end face can be ground, which increases the flexibility and efficiency of the device for grinding the workpiece.

[0036] As shown in Figure 3As shown, as a further technical solution, two sets of mounting blocks 21 are provided on each side of the bottom of the tail frame 3 and the head frame 2. The opposite side of the two mounting blocks 21 has an inclined surface 22. The mounting blocks 21 are mounted on the tail frame 3 by screws. The mounting blocks 21, the inclined surface 22 and the bottom of the tail frame 3 form a dovetail groove 23. The head frame 2 and the tail frame 3 are slidably mounted on the sliding plate 18 through the dovetail groove 23.

[0037] In this embodiment, we process the bottom sides of the tailstock 3 and headstock 2 to install two sets of mounting blocks 21. The size and shape of the mounting blocks 21 need to be determined according to the specific dimensions of the tailstock 3 and headstock 2 to ensure a tight fit. On the opposite side of the mounting blocks 21, a bevel 22 is machined. The angle and inclination of the bevel 22 need to be precisely controlled to ensure that the dovetail groove 23 formed with the bottom of the tailstock 3 can meet the sliding requirements. The mounting blocks 21 are connected to the tailstock 3 with screws. This solution can use screws to fix the headstock 2 or tailstock 3 to the sliding plate 18, making the processing more stable. After the mounting blocks 21 are fixed to the tailstock 3, the bevel 22 and the bottom of the tailstock 3 together form the dovetail groove 23. The size and shape of the dovetail groove 23 need to match the slide rail on the sliding plate 18. The surface of the sliding plate 18 needs to be precision machined to ensure the flatness and smoothness of the slide rail. The headstock 2 and tailstock 3 are slidably mounted on the sliding plate 18 through the dovetail groove 23. The dovetail groove 23 fits tightly with the slide rail on the sliding plate 18, effectively ensuring the stability of the headstock 2 and tailstock 3 and improving the smoothness and accuracy of the processed workpiece. At the same time, the design of the dovetail groove 23 can also effectively prevent the headstock 2 and tailstock 3 from shifting or falling off during the sliding process, enhancing the stability and reliability of the equipment.

[0038] like Figure 4 As shown, as a further technical solution, the tailstock 3 has a lever 24 for moving the tailstock 3 to slide on the sliding plate 18.

[0039] In this embodiment, a lever 24 is installed on the tailstock 3. The lever 24 can be made of high-strength metal material, with one end fixed to the tailstock 3 and the other end extending outside the tailstock 3 for easy operation by the operator.

[0040] like Figure 6 As shown, as a further technical solution, the frame 1 is provided with a second rotating screw 25 for driving the sliding frame 8 and a fourth driving unit 26 for driving the second rotating screw 25 to rotate. The sliding frame 8 is provided with a transmission nut. After the second rotating screw 25 rotates, it is used to drive the sliding frame 8 to slide on the frame 1 through the transmission nut.

[0041] In the embodiment, when the fourth driving unit 26 is driven, the second rotating screw rod 25 rotates and drives the sliding frame 8 to slide on the frame 1, so that the grinding wheel assembly 7 can be driven to approach or move away from the workpiece, thereby facilitating the polishing of the workpiece by the device and increasing the flexibility and efficiency of the polishing of the workpiece by the device.

[0042] As shown in Figure 1 and Figure 2 As a further technical solution, the water collecting groove 17 has a water outlet 27, which is in communication with the outside, so that the device can conveniently discharge the cooling liquid and polishing debris, thereby improving the efficiency of maintenance and repair of the device by the staff.

[0043] As shown in Figure 1 and Figure 6 As a further technical solution, the device further comprises a shell 28, which is arranged on the frame 1.

[0044] In the embodiment, the shell 28 can effectively protect the components inside the frame 1, prevent impurities such as dust and oil stains from entering, prolong the service life of the device, and avoid the situation that the staff is accidentally injured by the device. The shell 28 is provided with an operation door, and the internal structure can be operated through the operation door.

[0045] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-speed end-face cylindrical grinding machine, characterized in that, The machine includes a frame (1) and a head frame (2) and a tail frame (3) that are slidably mounted on the frame (1) along the X-axis. A first push rod (4) is rotatably mounted on the head frame (2), and a second push rod (5) is rotatably mounted on the tail frame (3). After the head frame (2) and the tail frame (3) slide on the frame (1), the first push rod (4) and the second push rod (5) move closer to each other or further away from each other. When the first push rod (4) and the second push rod (5) move closer to each other, they are used to clamp the workpiece. The machine also includes a first drive unit (6) for driving the first push rod (4) to rotate. A grinding wheel assembly (7) is slidably mounted on the frame (1). The grinding wheel assembly (7) is used to perform grinding operations on the workpiece. The grinding wheel assembly (7) includes a sliding frame (8) slidably mounted on the frame (1). A support bearing (9) and a transmission shaft (10) for transmission are mounted on the support bearing (9). An involute oil wedge (11) is provided on the support bearing (9). A grinding wheel (12) is mounted on the transmission shaft (10). The assembly also includes a second drive unit (13) mounted on the sliding frame (8) for driving the transmission shaft (10) to rotate.

2. The high-speed end-face cylindrical grinding machine according to claim 1, characterized in that, The frame (1) is T-shaped. The head frame (2), the tail frame (3) and the sliding frame (8) are respectively arranged on the first end (14), the second end (15) and the third end (16) of the frame (1), and the sliding frame (8) is arranged at 60° with the X-axis direction.

3. A high-speed end-face cylindrical grinding machine according to claim 1, characterized in that, The frame (1) is also provided with a water receiving trough (17), which is located below the head frame (2) and the tail frame (3).

4. A high-speed end-face cylindrical grinding machine according to claim 1, characterized in that, It also includes a sliding plate (18) slidably disposed on the frame (1). The head frame (2) and the tail frame (3) are both slidably disposed on the sliding plate (18). The sliding plate (18) is disposed on the frame (1). The frame (1) is provided with a first rotating screw (19) threaded on the sliding plate (18) and a third drive unit (20) for driving the first rotating screw (19) to rotate. After the first rotating screw (19) rotates, it is used to drive the sliding plate (18) to slide along the X-axis on the frame (1).

5. A high-speed end-face cylindrical grinding machine according to claim 4, characterized in that, Two sets of mounting blocks (21) are provided on both sides of the bottom of the tail frame (3) and the head frame (2). The two mounting blocks (21) have inclined surfaces (22) on one side close to each other. The mounting blocks (21) are set on the tail frame (3) by set screw threads. The two inclined surfaces (22) and the bottom of the tail frame (3) form a dovetail groove (23). The head frame (2) and the tail frame (3) are slidably set on the sliding plate (18) through the dovetail groove (23).

6. A high-speed end-face cylindrical grinding machine according to claim 4, characterized in that, The tailstock (3) has a lever (24) for moving the tailstock (3) to slide on the sliding plate (18).

7. A high-speed end-face cylindrical grinding machine according to claim 1, characterized in that, The frame (1) is provided with a second rotating screw (25) threaded on the sliding frame (8) and a fourth driving unit (26) for driving the second rotating screw (25) to rotate. After the second rotating screw (25) rotates, it drives the sliding frame (8) to slide on the frame (1).

8. A high-speed end-face cylindrical grinding machine according to claim 3, characterized in that, The water receiving tank (17) has a water outlet (27) that is connected to the outside.

9. A high-speed end-face cylindrical grinding machine according to claim 1, characterized in that, It also includes a housing (28) that covers the frame (1).

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