Bar clamping trolley for centerless lathe

Abstract

The bar clamping trolley for the centerless lathe comprises a bar clamping trolley body, a clamping hole is formed in the front end of the bar clamping trolley body, an upper clamping assembly and a lower clamping assembly are arranged at the upper end and the lower end of the bar clamping trolley body respectively, the upper clamping assembly comprises an upper clamping plate, and the lower clamping plate comprises a lower clamping plate. The upper clamping plate is arranged on the inner side of the clamping hole, and the lower clamping assembly comprises a lower clamping plate. According to the bar clamping trolley for the centerless lathe, a bar can be preliminarily clamped through the upper clamping plate and the lower clamping plate, meshing transmission between the first gear and the upper rack and meshing transmission between the first gear and the lower rack are matched, and therefore the bar clamping stability can be further improved; and a second gear is meshed with teeth of a fixed rack, and a second clamping groove, a first clamping block and a second clamping block are matched, so that the bar clamping vehicle body can conveniently and stably convey bars at the upper end of the track.

Description

Technical Field

[0001] The utility model relates to the field of bar clamping, in particular to a bar clamping vehicle for a centerless lathe. Background Technique

[0002] A centerless lathe is a special machine tool for external circle machining of round bar materials with a large length-diameter ratio. It is especially suitable for machining hot-rolled or heat-treated bar materials during the production process of metal bar profiles. It can remove defects such as decarburized layers and cracks on the surface of metal bar materials at high speed and high efficiency, so that the surface quality reaches a certain dimensional shape accuracy.

[0003] When the centerless lathe processes bar materials, it is necessary to convey the bar materials into the centerless lathe. Since the length of the bar materials is relatively long, during the conveying process, a hoisting device needs to be used to lift and convey them. The existing clamping and conveying devices have the problem of poor stability, which affects the subsequent processing of bar materials. To solve the above problems, we propose a bar clamping vehicle for a centerless lathe. Summary of the Invention

[0004] The main purpose of the utility model is to provide a bar clamping vehicle for a centerless lathe, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A bar clamping vehicle for a centerless lathe includes a bar clamping vehicle body. A clamping hole is opened at the front end of the bar clamping vehicle body. Upper and lower clamping components are respectively arranged at the upper and lower ends of the bar clamping vehicle body. The upper clamping component includes an upper clamping plate, and the upper clamping plate is arranged inside the clamping hole. The lower clamping component includes a lower clamping plate, and the lower clamping plate is arranged inside the clamping hole, and the upper clamping plate and the lower clamping plate cooperate with each other. Two symmetrically arranged driving components are arranged on both sides of the bar clamping vehicle body. Both of the two driving components include a synchronous motor fixedly connected to the upper end of the bar clamping vehicle body. Output ends of the two synchronous motors are fixedly connected with second gears. Fixed racks are meshed with the sides of the two second gears away from each other.

[0007] Preferably, the upper clamping component further includes an upper air cylinder fixedly connected to the upper end of the bar clamping vehicle body. An output end of the upper air cylinder is fixedly connected with an upper connecting plate. The lower end of the upper connecting plate is fixedly connected with the upper clamping plate. An installation plate is arranged on one side of the upper connecting plate, and the installation plate is fixedly installed on one side of the bar clamping vehicle body.

[0008] Preferably, the lower clamping assembly further includes a lower air cylinder fixedly connected to the lower end of the bar clamping vehicle body. The output end of the lower air cylinder is fixedly connected to a lower connecting plate, and the upper end of the lower connecting plate is fixedly connected to the lower clamping plate. The inner side of the mounting plate is slidably connected with an upper rack and a lower rack, and clamping components are arranged on the outer sides of the upper rack and the lower rack. The upper rack and the lower rack are respectively fixedly connected to the upper connecting plate and the lower connecting plate through the clamping components.

[0009] Preferably, a first gear is meshed between the upper rack and the lower rack, and the first gear is rotatably connected to the mounting plate.

[0010] Preferably, the two clamping components include two first clamping grooves opened on the outer sides of the upper rack and the lower rack and two connecting bolts fixedly connected to the inner sides of the two first clamping grooves. The other ends of the two connecting bolts are respectively fixedly connected to the corresponding upper connecting plate and the lower connecting plate. The upper rack and the lower rack are respectively clamped in the corresponding first clamping grooves through the connecting bolts.

[0011] Preferably, the driving assembly further includes a first clamping block and a second clamping block. A second clamping groove is opened at the lower end of the bar clamping vehicle body. The first clamping block and the second clamping block are symmetrically clamped in the second clamping groove with the second gear as the axis of symmetry.

[0012] Preferably, the lower ends of the first clamping block and the second clamping block are jointly slidably connected to a track.

[0013] Preferably, fixed racks are meshed on the sides away from each other of the two second gears. The two groups of fixed racks are symmetrically arranged with the bar clamping vehicle body as the axis of symmetry.

[0014] Compared with the prior art, the present utility model has the following beneficial effects: for this bar clamping vehicle for a centerless lathe, by starting the upper air cylinder and the lower air cylinder, the upper clamping plate and the lower clamping plate can be used to initially clamp the bar. In cooperation with the meshing transmission between the first gear and the upper rack and the lower rack, the clamping stability of the upper clamping plate and the lower clamping plate on the bar can be further improved. By meshing the second gear on the teeth of the fixed rack, and through the cooperation between the second clamping groove, the first clamping block and the second clamping block, the bar clamping vehicle body can be conveniently used to stably convey the bar at the upper end of the track, and the use effect is better than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the bar clamping vehicle for a centerless lathe of the present utility model;

[0016] Figure 2 is a schematic diagram of a partial structure of the bar clamping vehicle for a centerless lathe of the present utility model Figure 1 ;

[0017] Figure 3 Partial structural schematic of a bar clamping lathe for a centerless lathe of the present utility model Figure 2 ;

[0018] Figure 4 Overall structural sectional view of a bar clamping lathe for a centerless lathe of the present utility model;

[0019] Figure 5 Partial exploded structural schematic of a bar clamping lathe for a centerless lathe of the present utility model;

[0020] Figure 6 Enlarged structural schematic of part A of a bar clamping lathe for a centerless lathe of the present utility model;

[0021] Figure 7 Enlarged structural schematic of part B of a bar clamping lathe for a centerless lathe of the present utility model.

[0022] In the figure: 1. Bar clamping lathe body; 2. Upper clamping assembly; 21. Upper cylinder; 22. Upper connecting plate; 23. Upper clamping plate; 24. Upper rack; 25. First card slot; 26. Connecting bolt; 27. First gear; 3. Lower clamping assembly; 31. Lower cylinder; 32. Lower connecting plate; 33. Lower clamping plate; 34. Lower rack; 4. Driving assembly; 41. Synchronous motor; 42. Second gear; 43. Fixed rack; 44. Second card slot; 45. First block; 46. Second block; 47. Track; 5. Mounting plate; 6. Clamping hole. Specific embodiments

[0023] To make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As Figures 1-7 shown, a bar clamping lathe for a centerless lathe includes a bar clamping lathe body 1. A clamping hole 6 is provided at the front end of the bar clamping lathe body 1. An upper clamping assembly 2 and a lower clamping assembly 3 are respectively arranged at the upper and lower ends of the bar clamping lathe body 1. The upper clamping assembly 2 includes an upper clamping plate 23, and the upper clamping plate 23 is arranged inside the clamping hole 6. The lower clamping assembly 3 includes a lower clamping plate 33, and the lower clamping plate 33 is arranged inside the clamping hole 6, and the upper clamping plate 23 and the lower clamping plate 33 cooperate with each other. Two symmetrical driving assemblies 4 are arranged on both sides of the bar clamping lathe body 1. Both driving assemblies 4 include a synchronous motor 41 fixedly connected to the upper end of the bar clamping lathe body 1. Output ends of both synchronous motors 41 are fixedly connected with a second gear 42. Fixed racks 43 are meshed with the far sides of both second gears 42.

[0025] In this embodiment, the upper clamping assembly 2 further includes an upper air cylinder 21 fixedly connected to the upper end of the bar clamping vehicle body 1. The output end of the upper air cylinder 21 is fixedly connected with an upper connecting plate 22. The lower end of the upper connecting plate 22 is fixedly connected with an upper clamping plate 23. One side of the upper connecting plate 22 is provided with a mounting plate 5, and the mounting plate 5 is fixedly installed on one side of the bar clamping vehicle body 1.

[0026] In this embodiment, the lower clamping assembly 3 further includes a lower air cylinder 31 fixedly connected to the lower end of the bar clamping vehicle body 1. The output end of the lower air cylinder 31 is fixedly connected with a lower connecting plate 32. The upper end of the lower connecting plate 32 is fixedly connected with a lower clamping plate 33. The inner side of the mounting plate 5 is slidably connected with an upper rack 24 and a lower rack 34. Clamping components are arranged on the outer sides of the upper rack 24 and the lower rack 34. The upper rack 24 and the lower rack 34 are respectively fixedly connected with the upper connecting plate 22 and the lower connecting plate 32 through the clamping components.

[0027] Specifically, through the cooperation of the upper connecting plate 22 and the lower connecting plate 32 with the upper rack 24 and the lower rack 34, it is convenient to realize the clamping of the bar by the upper clamping plate 23 and the lower clamping plate 33.

[0028] In this embodiment, a first gear 27 is meshed between the upper rack 24 and the lower rack 34, and the first gear 27 is rotatably connected with the mounting plate 5.

[0029] Specifically, through the design of the first gear 27, the stability of the upper clamping plate 23 and the lower clamping plate 33 when clamping the bar can be improved.

[0030] In this embodiment, the two clamping components include two first clamping grooves 25 opened on the outer sides of the upper rack 24 and the lower rack 34 and two connecting bolts 26 fixedly connected to the inner sides of the two first clamping grooves 25. The other ends of the two connecting bolts 26 are respectively fixedly connected with the corresponding upper connecting plate 22 and the lower connecting plate 32. The upper rack 24 and the lower rack 34 are respectively clamped in the corresponding first clamping grooves 25 through the connecting bolts 26.

[0031] Specifically, through the design of the connecting bolts 26 and the first clamping grooves 25, it is convenient to realize the clamping of the upper connecting plate 22 and the lower connecting plate 32 on the outer sides of the upper rack 24 and the lower rack 34.

[0032] In this embodiment, the driving assembly 4 further includes a first clamping block 45 and a second clamping block 46. A second clamping groove 44 is opened at the lower end of the bar clamping vehicle body 1. The first clamping block 45 and the second clamping block 46 are symmetrically clamped in the second clamping groove 44 with the second gear 42 as the axis of symmetry.

[0033] In this embodiment, the lower ends of the first clamping block 45 and the second clamping block 46 are jointly slidably connected with a track 47.

[0034] Specifically, through the cooperation of the second card slot 44, the first card block 45, the second card block 46 and the track 47, the bar clamping vehicle body 1 can be conveniently slid on the upper end of the track 47.

[0035] In this embodiment, fixed racks 43 are engaged on the sides of the two second gears 42 away from each other, and the two groups of fixed racks 43 are symmetrically arranged with the bar clamping vehicle body 1 as the axis of symmetry.

[0036] Specifically, through the meshing transmission between the second gear 42 and the fixed rack 43, kinetic energy can be provided for the bar clamping vehicle body 1 to slide on the upper end of the track 47.

[0037] It should be noted that the present utility model is a bar clamping vehicle for a centerless lathe. The user inserts the bar to be clamped into the inside of the bar clamping vehicle body 1 through the clamping hole 6. At this time, the upper air cylinder 21 and the lower air cylinder 31 are started. The output end of the upper air cylinder 21 drives the upper connecting plate 22 to move downward. In cooperation with the design of the connecting bolt 26 and the first card slot 25 opened on the outer side of the upper rack 24, the upper connecting plate 22 can be conveniently driven to drive the upper rack 24 to move downward. At this time, the output end of the lower air cylinder 31 will also drive the lower connecting plate 32 to move upward. Similarly, the lower connecting plate 32 can be driven to drive the lower rack 34 to move upward. Through the meshing transmission between the first gear 27 and the upper rack 24 and the lower rack 34, the upper clamping plate 23 and the lower clamping plate 33 can stably clamp the bar. At this time, by starting the two synchronous motors 41, the output ends of the synchronous motors 41 drive the second gears 42 to move on the teeth of the fixed racks 43. Through the cooperation between the second card slot 44, the first card block 45 and the second card block 46, the bar clamping vehicle body 1 can be conveniently slid on the upper end of the track 47, so that the bar can be conveniently and stably conveyed, which is relatively practical.

[0038] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A bar clamping vehicle for a centerless lathe, comprising a bar clamping vehicle body (1), characterized in that: A clamping hole (6) is provided at the front end of the bar clamping vehicle body (1), and an upper clamping assembly (2) and a lower clamping assembly (3) are respectively provided at the upper and lower ends of the bar clamping vehicle body (1), wherein the upper clamping assembly (2) comprises an upper clamping plate (23) which is arranged on the inner side of the clamping hole (6), and the lower clamping assembly (3) comprises a lower clamping plate (33) which is arranged on the inner side of the clamping hole (6), and the upper clamping plate (23) and the lower clamping plate (33) cooperate with each other. Two symmetrical drive assemblies (4) are provided on both sides of the bar clamping vehicle body (1), and the two drive assemblies (4) each comprise a synchronous motor (41) fixedly connected to the upper end of the bar clamping vehicle body (1), and the output ends of the two synchronous motors (41) are fixedly connected to a second gear (42), and the two second gears (42) are meshed with a fixed rack (43) on the side away from each other.

2. The bar clamping machine for a centerless lathe according to claim 1, characterized in that: The upper clamping assembly (2) further comprises an upper cylinder (21) fixedly connected to the upper end of the bar clamping vehicle body (1); an output end of the upper cylinder (21) is fixedly connected to an upper connecting plate (22); a lower end of the upper connecting plate (22) is fixedly connected to an upper clamping plate (23); a mounting plate (5) is provided on one side of the upper connecting plate (22); and the mounting plate (5) is fixedly mounted on one side of the bar clamping vehicle body (1).

3. The bar clamping machine for a centerless lathe according to claim 2, characterized in that: The lower clamping assembly (3) further comprises a lower cylinder (31) fixedly connected to the lower end of the bar clamping vehicle body (1); the output end of the lower cylinder (31) is fixedly connected to a lower connecting plate (32); the upper end of the lower connecting plate (32) is fixedly connected to the lower clamping plate (33); the inner side of the mounting plate (5) is slidably connected to an upper rack (24) and a lower rack (34); the outer sides of the upper rack (24) and the lower rack (34) are both provided with a clamping assembly; the upper rack (24) and the lower rack (34) are respectively fixedly connected to the upper connecting plate (22) and the lower connecting plate (32) through the clamping assembly.

4. The bar clamping vehicle for a centerless lathe according to claim 3, characterized in that: A first gear (27) is meshed between the upper rack (24) and the lower rack (34), and the first gear (27) is rotatably connected to the mounting plate (5).

5. The bar clamping machine for a centerless lathe according to claim 3, characterized in that: The two groups of the clamping assemblies comprise two first clamping grooves (25) formed on the outer sides of the upper rack (24) and the lower rack (34), and two connecting bolts (26) fixedly connected to the inner sides of the two first clamping grooves (25), the other ends of the two connecting bolts (26) being respectively fixedly connected to the corresponding upper connecting plate (22) and the lower connecting plate (32), and the upper rack (24) and the lower rack (34) are respectively clamped in the corresponding first clamping grooves (25) via the connecting bolts (26).

6. The bar clamping machine for a centerless lathe according to claim 1, characterized in that: The driving assembly (4) further comprises a first clamping block (45) and a second clamping block (46); a second clamping slot (44) is provided at the lower end of the bar clamping vehicle body (1); the first clamping block (45) and the second clamping block (46) are symmetrically clamped in the second clamping slot (44) with the second gear (42) as a symmetry axis.

7. The bar clamping machine for a centerless lathe according to claim 6, characterized in that: The lower ends of the first clamping block (45) and the second clamping block (46) are slidably connected to a track (47).

8. The bar clamping machine for a centerless lathe according to claim 1, characterized in that: The two second gears (42) are both meshed with fixed racks (43) on the sides away from each other, and the two sets of fixed racks (43) are symmetrically arranged with the bar clamping vehicle body (1) as the symmetry axis.

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