Metal product lifting brake device for machine tool

Abstract

The utility model relates to the technical field of brake devices, in particular to a metal product lifting brake device for a machine tool, which comprises a machine tool body, a servo motor is fixedly mounted on the upper end face of the machine tool body, and a transmission cavity is formed in the machine tool body; through the arrangement of the brake disc, the connecting plate, the first shaft, the push rod, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod and the fourth shaft, the push rod is shifted rightwards to enable the connecting plate to turn over clockwise on the first shaft, and the first connecting rod and the second connecting rod are dragged through the two second shafts respectively; the first connecting rod and the second connecting rod drag the third connecting rod and the fourth connecting rod to the center of the brake disc, so that the two brake pads are in contact with the side wall of the brake disc, and braking rotation resistance of the transmission shaft is achieved; the two brake pads can be taken down to be replaced and maintained only through the third shaft and the fourth shaft when the two brake pads are seriously abraded, and the two brake pads are more convenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of brake devices, in particular to a metal product lifting brake device for machine tools. Background Art

[0002] A brake is a device that has the function of slowing down, stopping or keeping a moving part (or moving machinery) stopped. It is a mechanical part that stops or slows down the moving parts in the machinery.

[0003] After searching, the publication number is: CN204366586U, which discloses a machine tool fixed frame lifting mechanism, which can accurately lift the workpiece to a fixed position and is used for cutting machine tools. The above-mentioned prior art uses a brake motor to lock the ball screw to prevent the fixed frame from sliding down from the ball screw due to the excessive weight of the workpiece. However, the long-term use of the brake motor to brake the ball screw will accelerate the aging and wear of the brake device in the brake motor. Subsequently, the brake motor needs to be disassembled and the internal brake device needs to be replaced and maintained, which is not convenient enough to replace and maintain the brake device.

[0004] In order to solve the above problems, the utility model provides a metal product lifting and braking device for machine tools. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a metal product lifting brake device for machine tools to solve the technical problem in the prior art that "the above-mentioned prior art uses a brake motor to lock the ball screw to prevent the workpiece from being too heavy and causing the fixed frame to slide down from the ball screw, but long-term use of the brake motor to brake the ball screw will accelerate the aging and wear of the brake device in the brake motor, and subsequently it is necessary to disassemble the brake motor and replace and maintain the internal brake device, which makes the replacement and maintenance of the brake device not convenient enough."

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A metal product lifting and braking device for a machine tool comprises a machine tool body, a servo motor is fixedly mounted on the upper end surface of the machine tool body, a transmission cavity is opened in the machine tool body, an output end of the servo motor is located in the transmission cavity and is fixedly connected to a first gear, the first gear is meshingly connected to a second gear, a transmission shaft is fixedly connected to the center of the second gear, a brake disc is fixedly connected to the end of the transmission shaft extending out of the machine tool body, a first shaft is fixedly connected to the side wall of the machine tool body, a connecting plate is rotatably sleeved on the side wall of the first shaft, a push rod is fixedly connected to the upper end surface of the connecting plate, The upper end surface of the connecting plate is symmetrically fixedly connected with the No. 2 shaft, and the side wall of the machine tool body located below the brake disc is fixedly connected with the No. 4 shaft, and the side wall of the No. 4 shaft is rotatably sleeved with the No. 3 connecting rod and the No. 4 connecting rod, and the No. 3 connecting rod and the No. 4 connecting rod are fixedly connected with the No. 3 shaft on the upper end surfaces of the opposite ends, and the two No. 2 shafts and the No. 3 shaft are rotatably sleeved with the No. 2 connecting rod together, and the side walls on the opposite sides of the No. 3 connecting rod and the No. 4 connecting rod are fixedly connected with brake pads, and the two brake pads are matched with the brake disc, and a hole is opened on the side wall of the machine tool body located above the brake disc, and a push rod is arranged in the hole.

[0008] As a preferred technical solution of the utility model, a sliding groove is provided on the side wall of one end of the No. 3 connecting rod located on the No. 4 shaft, and the side wall of the No. 4 connecting rod is slidably connected to the inner wall of the sliding groove.

[0009] As a preferred technical solution of the utility model, the two brake pads are arc-shaped metal blocks, and the opposite sides of the two brake pads are provided with wear-resistant layers, and the wear-resistant layers are ceramic synthetic blocks.

[0010] As the preferred technical solution of the utility model, a transmission groove is opened on the upper end surface of the machine tool body, and the transmission shaft is located in the transmission groove and fixedly sleeved with two No. 3 gears, and the two No. 3 gears are meshed with No. 4 gears. The upper end surface of the machine tool body is symmetrically fixedly connected to a limiting frame, and the centers of the two No. 4 gears are fixedly connected with bidirectional threaded rods, and the two bidirectional threaded rods are symmetrically threaded with clamping plates.

[0011] As a preferred technical solution of the utility model, one end of the transmission shaft away from the brake disc is rotatably connected to the inner wall of the transmission groove.

[0012] As the preferred technical solution of the utility model, the ends of the two bidirectional threaded rods facing away from the fourth gear are rotatably connected to the upper end of the inner wall of the limit frame, the four clamping plates are respectively slidably connected to the inner walls of the two limit frames, and a workpiece is arranged between the four clamping plates.

[0013] The utility model provides a metal product lifting brake device for machine tools, which has the following

[0014] Beneficial effects:

[0015] 1. By setting the brake disc, connecting plate, No. 1 shaft, push rod, No. 1 connecting rod, No. 2 connecting rod, No. 3 connecting rod, No. 4 connecting rod and No. 4 shaft, push the push rod to the right to make the connecting plate turn clockwise on the No. 1 shaft and drag the No. 1 connecting rod and No. 2 connecting rod respectively through the two No. 2 shafts, so that the No. 3 connecting rod and No. 4 connecting rod rotate relatively on the No. 4 shaft. The No. 1 connecting rod and No. 2 connecting rod drag the No. 3 connecting rod and No. 4 connecting rod to the center of the brake disc so that the two brake pads contact the side wall of the brake disc to achieve the braking and rotation blocking of the transmission shaft. If the two brake pads are seriously worn, they can be removed through the No. 3 shaft and No. 4 shaft for replacement and maintenance, which makes the disassembly and replacement of the two brake pads more convenient;

[0016] 2. By setting the insertion hole and the push rod, when the two brake pads are in contact with the brake disc, the push rod is inserted into the insertion hole so that the push rod is against the left side of the push rod. At this time, the two brake pads can always be against the surface of the brake disc and maintain friction contact with the side wall of the brake disc, avoiding the reversal of the push rod causing the two brake pads to detach from the surface of the brake pad and thus causing the brake to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a metal product lifting and braking device for machine tools proposed by the utility model;

[0018] Figure 2 This is a front structural sectional view of a metal product lifting and braking device for machine tools proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the side structure of a brake pad of a metal product lifting brake device for a machine tool proposed by the utility model when it is idle;

[0020] Figure 4 This is a schematic diagram of the side structure of a brake pad of a metal product lifting brake device for a machine tool proposed by the utility model when it is working;

[0021] Figure 5 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 6 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0024] In the figure: 1 machine tool body, 2 servo motor, 3 transmission chamber, 4 No. 1 gear, 5 No. 2 gear, 6 transmission shaft, 7 brake disc, 8 connecting plate, 9 No. 1 shaft, 10 push rod, 11 No. 1 connecting rod, 12 No. 2 connecting rod, 13 No. 3 connecting rod, 14 No. 4 connecting rod, 15 No. 4 shaft, 16 push rod, 17 transmission groove, 18 No. 3 gear, 19 No. 4 gear, 20 limit frame, 21 bidirectional threaded rod, 22 clamping plate, 23 workpiece. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0027] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments:

[0028] refer to Figure 1-7 A metal product lifting and braking device for a machine tool comprises a machine tool body 1, a servo motor 2 is fixedly mounted on the upper end surface of the machine tool body 1, a transmission chamber 3 is opened in the machine tool body 1, an output end of the servo motor 2 is located in the transmission chamber 3 and is fixedly connected to a No. 1 gear 4, the No. 1 gear 4 is meshedly connected to a No. 2 gear 5, a transmission shaft 6 is fixedly connected to the center of the No. 2 gear 5, a brake disc 7 is fixedly connected to the end of the transmission shaft 6 extending out of the machine tool body 1, a No. 1 shaft 9 is fixedly connected to the side wall of the machine tool body 1, a connecting plate 8 is rotatably sleeved on the side wall of the No. 1 shaft 9, a push rod 10 is fixedly connected to the upper end surface of the connecting plate 8, and a connecting rod 10 is fixedly connected to the connecting rod 10. The upper end surface of the plate 8 is symmetrically fixedly connected with the No. 2 shaft, and the side wall of the machine tool body 1 located below the brake disc 7 is fixedly connected with the No. 4 shaft 15, and the side wall of the No. 4 shaft 15 is rotatably sleeved with the No. 3 connecting rod 13 and the No. 4 connecting rod 14, and the No. 3 shaft is fixedly connected to the upper end surface of the opposite end of the No. 3 connecting rod 13 and the No. 4 connecting rod 14, and the two No. 2 shafts and the No. 3 shaft are rotatably sleeved with the No. 2 connecting rod 12, and the side walls on the opposite side of the No. 3 connecting rod 13 and the No. 4 connecting rod 14 are fixedly connected with brake pads, and the two brake pads are matched with the brake disc 7, and a socket is opened on the side wall of the machine tool body 1 located above the brake disc 7, and a push rod 16 is arranged in the socket.

[0029] When the workpiece 23 is placed between the four clamping plates 22 and the servo motor 2 is started to clamp and lift the workpiece 23 on the machine tool body 1, the push rod 10 is manually pushed to the right to make the connecting plate 8 rotate clockwise on the No. 1 axis 9. During the rotation, the two No. 2 axes respectively drag the two No. 3 axes through the No. 1 connecting rod 11 and the No. 2 connecting rod 12, so that the No. 3 connecting rod 13 and the No. 4 connecting rod 14 rotate relative to each other on the No. 4 axis 15 and are dragged toward the center of the brake disc 7. When the brake pads on the opposite side of the No. 3 connecting rod 13 and the No. 4 connecting rod 14 contact the side wall of the brake disc 7 at the same time, the transmission shaft 6 can be prevented from reversing after the servo motor 2 is powered off. Finally, the push rod 16 is inserted into the insertion hole and the push rod 10 is limited, so that the inclination angle of the connecting plate 8 below the push rod 10 on the machine tool body 1 can be fixed. When the brake pads of the No. 3 connecting rod 13 and the No. 4 connecting rod 14 are seriously worn, they can be removed through the No. 3 shaft and the No. 4 shaft 15 for replacement and maintenance, which is more convenient.

[0030] Furthermore, a sliding groove is formed on a side wall of one end of the No. 3 connecting rod 13 located on the No. 4 shaft 15, and a side wall of the No. 4 connecting rod 14 is slidably connected to an inner wall of the sliding groove.

[0031] By making the side wall of the fourth connecting rod 14 slidably connected to the inner wall of the sliding groove, the fourth connecting rod 14 can slide in the sliding groove on the side wall of one end of the third connecting rod 13, so as to prevent the third connecting rod 13 and the fourth connecting rod 14 from abutting against each other when they rotate relative to each other on the fourth shaft 15, so as to prevent them from rotating;

[0032] Furthermore, both brake pads are arc-shaped metal blocks, and wear-resistant layers are arranged on opposite sides of the two brake pads, and the wear-resistant layers are ceramic composite blocks.

[0033] By setting the wear-resistant layer, the ceramic synthetic block is composed of a variety of materials such as mineral fiber, aramid fiber and ceramic fiber. Since there is no metal material, the two brake pads make less noise after contacting the surface of the brake disc 7, and the damage to the two brake pads during the friction process will be less;

[0034] Furthermore, a transmission groove 17 is opened on the upper end surface of the machine tool body 1, and the transmission shaft 6 is located in the transmission groove 17 and fixedly sleeved with two number three gears 18. The two number three gears 18 are meshed and connected with the number four gear 19. The upper end surface of the machine tool body 1 is symmetrically fixedly connected to the limit frame 20, and the centers of the two number four gears 19 are fixedly connected with bidirectional threaded rods 21, and the two bidirectional threaded rods 21 are symmetrically threadedly sleeved with clamping plates 22.

[0035] By setting the third gear 18, the fourth gear 19, the limit frame 20, the bidirectional threaded rod 21, and the clamping plate 22, the servo motor 2 is started to drive the transmission shaft 6 to rotate through the meshing of the first gear 4 and the second gear 5 at its output end, and the transmission shaft 6 then drives the two bidirectional threaded rods 21 to rotate through the meshing of the two third gears 18 and the fourth gear 19, so that the four clamping plates 22 can move relatively on the inner walls of the two limit frames 20, so that the relative movement of the four clamping plates 22 is more stable and accurate;

[0036] Furthermore, one end of the transmission shaft 6 facing away from the brake disc 7 is rotatably connected to the inner wall of the transmission groove 17 .

[0037] By making the end of the transmission shaft 6 away from the brake disc 7 rotatably connected to the inner wall of the transmission groove 17, the end of the transmission shaft 6 away from the brake disc 7 can rotate on the inner wall of the transmission groove 17;

[0038] Furthermore, the ends of the two bidirectional threaded rods 21 away from the fourth gear 19 are rotatably connected to the upper end of the inner wall of the limit frame 20, and the four clamping plates 22 are slidingly connected to the inner walls of the two limit frames 20 respectively, and a workpiece 23 is arranged between the four clamping plates 22.

[0039] By making the ends of the two bidirectional threaded rods 21 away from the fourth gear 19 rotatably connected to the upper end of the inner wall of the limit frame 20, the ends of the two bidirectional threaded rods 21 away from the fourth gear 19 rotate on the inner walls of the two limit frames 20, so that the four clamping plates 22 can clamp and lift the workpiece 23 along the inner wall of the limit frame 20.

[0040] The working principle of the utility model is as follows: when the workpiece 23 is placed between the four clamping plates 22 and the servo motor 2 is started to clamp and lift the workpiece 23 on the machine tool body 1, the push rod 10 is manually pushed to the right to make the connecting plate 8 rotate clockwise on the No. 1 shaft 9. When rotating, the two No. 2 shafts respectively drag the two No. 3 shafts through the No. 1 connecting rod 11 and the No. 2 connecting rod 12, so that the No. 3 connecting rod 13 and the No. 4 connecting rod 14 rotate relative to each other on the No. 4 shaft 15, and are simultaneously driven to the center of the brake disc 7. Drag it at the place where it is pulled. When the brake pads on the opposite side of the No. 3 connecting rod 13 and the No. 4 connecting rod 14 contact the side wall of the brake disc 7 at the same time, the transmission shaft 6 can be prevented from reversing after the servo motor 2 is powered off. Finally, the push rod 16 is inserted into the socket and the push rod 10 is limited so that the inclination angle of the connecting plate 8 below the push rod 10 on the machine tool body 1 can be fixed. When the brake pads of the No. 3 connecting rod 13 and the No. 4 connecting rod 14 are severely worn, they can be removed for replacement and maintenance through the No. 3 shaft and the No. 4 shaft 15, which is more convenient.

[0041] Compared with the prior art, a brake disc 7, a connecting plate 8, a No. 1 shaft 9, a pushing rod 10, a No. 1 connecting rod 11, a No. 2 connecting rod 12, a No. 3 connecting rod 13, a No. 4 connecting rod 14 and a No. 4 shaft 15 are provided. First, the pushing rod 10 is pushed to the right to make the connecting plate 8 turn clockwise on the No. 1 shaft 9 and the No. 1 connecting rod 11 and the No. 2 connecting rod 12 are dragged respectively through the two No. 2 shafts to make the No. 3 connecting rod 13 and the No. 4 connecting rod 14 rotate relatively on the No. 4 shaft 15. The No. 1 connecting rod 11 and the No. 2 connecting rod 12 drag the No. 3 connecting rod 13 and the No. 4 connecting rod 14 to the center of the brake disc 7 so that the two brake pads contact the side wall of the brake disc 7 to achieve braking and preventing the transmission shaft 6 from rotating. If the two brake pads are severely worn, they can be removed for replacement and maintenance through the No. 3 shaft and the No. 4 shaft 15, and the disassembly and replacement of the two brake pads are more convenient.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A metal product lifting and braking device for a machine tool, comprising a machine tool body (1), characterized in that: A servo motor (2) is fixedly mounted on the upper end surface of the machine tool body (1), a transmission chamber (3) is provided in the machine tool body (1), an output end of the servo motor (2) is located in the transmission chamber (3) and is fixedly connected to a first gear (4), the first gear (4) is meshingly connected to a second gear (5), a transmission shaft (6) is fixedly connected at the center of the second gear (5), a brake disc (7) is fixedly connected to the end of the transmission shaft (6) extending out of the machine tool body (1), a first shaft (9) is fixedly connected to the side wall of the machine tool body (1), a connecting plate (8) is rotatably sleeved on the side wall of the first shaft (9), a push rod (10) is fixedly connected to the upper end surface of the connecting plate (8), and the upper end of the connecting plate (8) is fixedly connected to the push rod (10). A second shaft is symmetrically fixedly connected to the surface, a fourth shaft (15) is fixedly connected to the side wall of the machine tool body (1) located below the brake disc (7), a third connecting rod (13) and a fourth connecting rod (14) are rotatably sleeved on the side wall of the fourth shaft (15), the third shaft is fixedly connected to the upper end surface of the third connecting rod (13) and the fourth connecting rod (14) at the opposite end, the two second shafts and the third shaft are rotatably sleeved with the second connecting rod (12), the side walls of the third connecting rod (13) and the fourth connecting rod (14) on the opposite side are fixedly connected with brake pads, and the two brake pads are matched with the brake disc (7), and a socket is opened on the side wall of the machine tool body (1) located above the brake disc (7), and a push rod (16) is arranged in the socket.

2. A metal product lifting and braking device for machine tools according to claim 1, characterized in that: A sliding groove is provided on the side wall of one end of the No. 3 connecting rod (13) located on the No. 4 shaft (15), and the side wall of the No. 4 connecting rod (14) is slidably connected to the inner wall of the sliding groove.

3. The metal product lifting and braking device for machine tools according to claim 1, characterized in that: The two brake pads are arc-shaped metal blocks, and the opposite sides of the two brake pads are provided with wear-resistant layers, and the wear-resistant layers are ceramic synthetic blocks.

4. The metal product lifting and braking device for machine tools according to claim 1, characterized in that: The upper end surface of the machine tool body (1) is provided with a transmission groove (17), the transmission shaft (6) is located in the transmission groove (17) and is fixedly sleeved with two number three gears (18), the two number three gears (18) are meshedly connected with a number four gear (19), the upper end surface of the machine tool body (1) is symmetrically fixedly connected with a limit frame (20), the centers of the two number four gears (19) are fixedly connected with a bidirectional threaded rod (21), and the two bidirectional threaded rods (21) are symmetrically threadedly sleeved with a clamping plate (22).

5. The metal product lifting and braking device for machine tools according to claim 4, characterized in that: One end of the transmission shaft (6) facing away from the brake disc (7) is rotatably connected to the inner wall of the transmission groove (17).

6. The metal product lifting and braking device for machine tools according to claim 4, characterized in that: The ends of the two bidirectional threaded rods (21) facing away from the fourth gear (19) are both rotatably connected to the upper end of the inner wall of the limiting frame (20), and the four clamping plates (22) are respectively slidably connected to the inner walls of the two limiting frames (20), and a workpiece (23) is arranged between the four clamping plates (22).

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