Bar constant center device adopting centering mode

Abstract

The bar constant center device adopting the centering mode comprises an installation frame and is characterized in that a first guide column and a second guide column are fixedly installed at the upper end of the installation frame in a penetrating and penetrating mode, a hydraulic cylinder base is fixedly installed at the upper end of the first guide column and the upper end of the second guide column, and a hydraulic cylinder is fixedly installed at the upper end of the hydraulic cylinder base; an upper roller seat is fixedly installed at the output end of the hydraulic cylinder, a second rack is fixedly installed on the upper portion of the front end of the upper roller seat, and a first rack is fixedly installed on the front portion of the upper end of the hydraulic cylinder seat in a penetrating and inserting mode. An upper roller seat is pushed by a hydraulic cylinder to slide downwards on a first guide column and a second guide column, when the upper roller seat slides downwards, a second rack on the upper roller seat moves downwards along with the upper roller seat, the second rack drives a gear to rotate, and when the gear rotates, the first rack is driven to be lifted upwards; therefore, a hydraulic cylinder seat, a hydraulic cylinder, a first stand column, a second guide column and a lower roller seat are driven to move upwards.

Description

Technical Field

[0001] The invention relates to the technical field of bar processing, in particular to a bar constant center device using a centering method. Background Art

[0002] Rod is a round material with a certain length and diameter. It is usually made of metal, plastic or other materials. In the construction industry, rod plays an important role as a load-bearing component and is widely used in the construction of houses, bridges and other infrastructure. In mechanical manufacturing, rods have high hardness and strength, so they are often used to manufacture various mechanical parts, such as bearings, gears, etc. In addition, rods are also widely used in engineering, decoration, medical treatment, pharmaceuticals and other fields. Therefore, as an important steel specification, rods play an irreplaceable role in various fields.

[0003] However, the rods need to be processed after production, because the original rods often cannot meet the specific application requirements. The processing process may include cutting, grinding, drilling, bending, heat treatment and other operations to change the shape, size, surface quality and performance of the rods.

[0004] For some existing bar processing machines, such as centerless turning equipment, constant center conveying is required for processing bars of different specifications. If the center of the bar shifts after clamping, the size of the processed product will be inaccurate, affecting product quality. In particular, bars of different specifications differ in size and shape, which places higher requirements on the clamping and conveying system of the processing machine. Summary of the invention

[0005] The main purpose of the present invention is to provide a rod constant center device using a centering method, which can effectively solve the problem of difficulty in constant center transportation of rods of different specifications for incoming material processing.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A constant center device for bars using a centering method comprises a mounting frame, characterized in that: a No. 1 guide column and a No. 2 guide column are respectively inserted and fixedly installed on the upper end of the mounting frame, a hydraulic cylinder seat is fixedly installed on the upper end of the No. 1 guide column and the No. 2 guide column, and an upper roller seat is fixedly installed on the output end of the hydraulic cylinder, a No. 2 rack is fixedly installed on the upper front end of the upper roller seat, a No. 1 rack is inserted and fixedly installed on the front end of the upper end of the hydraulic cylinder seat, a gear is rotatably installed on the front end of the mounting frame, an upper roller seat is installed together on the upper outer surfaces of the No. 1 guide column and the No. 2 guide column, and a lower roller seat is installed together on the lower outer surfaces of the No. 1 guide column and the No. 2 guide column. Similarly, the mounting frame structure is designed to be bilaterally symmetrical.

[0008] The push rod on it is pushed downward by the hydraulic cylinder, and the lower end of the push rod is fixedly connected to the upper roller seat, thereby pushing the upper roller seat to slide downward on the No. 1 guide column and the No. 2 guide column. When the upper roller seat slides downward, the No. 2 rack on it will also move downward. Therefore, the No. 2 rack will drive the gear to rotate, and when the gear rotates, it will drive the No. 1 rack to lift upward. The No. 1 rack, hydraulic cylinder seat, hydraulic cylinder, No. 1 column, No. 2 guide column and lower roller seat are fixedly connected, so it will drive the hydraulic cylinder seat, hydraulic cylinder, No. 1 column, No. 2 guide column and lower roller seat to move upward, and when the hydraulic cylinder moves upward, the push rod at its output end will continue to Then push the upper roller seat downward, so that the upper and lower roller seats can be lifted and lowered synchronously, so that when the device clamps bars of different specifications, the center of the bars can be ensured to be at the same height, and there is no need to electrically control the movement stroke of the upper and lower rollers separately. At the same time, the No. 1 rack and the No. 2 rack are both cylindrical structures, which are locked and fixed by locking nuts. By loosening the locking nuts, the positions of the No. 1 rack and the No. 2 rack can be fine-tuned, thereby facilitating the installation and adjustment of the relative positions of the upper roller seat and the lower roller seat, thereby improving the practicability of the device. In addition, the gear and the rack with a cylindrical structure have a high bearing capacity, which further improves the service life of the device and facilitates maintenance.

[0009] Preferably, a clamping upper roller is inserted and fixedly installed on the upper end of the upper roller seat, and a clamping lower roller is inserted and fixedly installed on the lower end of the lower roller seat. When the upper roller seat and the lower roller seat are raised and lowered synchronously, the clamping upper roller on the upper roller seat and the clamping lower roller on the lower roller seat will clamp the bar accordingly.

[0010] Preferably, the upper roller seat is interlaced and movably installed on the No. 1 guide column and the No. 2 guide column. When the push rod at the output end of the hydraulic cylinder is pushed downward, since the upper roller seat is interlaced and movably installed on the No. 1 guide column and the No. 2 guide column, the upper roller seat can slide downward on the No. 1 guide column and the No. 2 guide column, and since the upper roller seat is fixedly connected to the No. 1 rack, the No. 1 rack on the upper roller seat can drive the gear to rotate downward accordingly.

[0011] Preferably, the lower roller seat is fixedly mounted on the No. 1 guide column and the No. 2 guide column. When the upper roller seat slides downward, the No. 2 rack on it will also move downward, so the No. 2 rack will drive the gear to rotate, and when the gear rotates, it will drive the No. 1 rack to lift upward, and the No. 1 rack, the hydraulic cylinder seat, the hydraulic cylinder, the No. 1 column, the No. 2 guide column and the lower roller seat are fixedly connected, so the hydraulic cylinder seat, the hydraulic cylinder, the No. 1 column, the No. 2 guide column and the lower roller seat will be driven to move upward.

[0012] Preferably, the first rack and the second rack are meshed and connected to the left and right ends of the gear respectively. Since the first rack and the second rack are meshed and connected to the gear, the second rack will drive the gear to rotate, and when the gear rotates, it will drive the first rack to lift up.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When it is necessary to clamp and load the bar, first place the bar on the clamping lower roller. At this time, the push rod on it is pushed downward by the hydraulic cylinder, and the lower end of the push rod is fixedly connected to the upper roller seat, thereby pushing the upper roller seat to slide downward on the No. 1 guide column and the No. 2 guide column. When the upper roller seat slides downward, the No. 2 rack on it will also move downward. Therefore, the No. 2 rack will drive the gear to rotate, and when the gear rotates, it will drive the No. 1 rack to lift up. The No. 1 rack, hydraulic cylinder seat, hydraulic cylinder, No. 1 column, No. 2 guide column and lower roller seat are fixedly connected, so it will drive the hydraulic cylinder seat, The hydraulic cylinder, column No. 1, guide column No. 2 and lower roller seat move up accordingly, and when the hydraulic cylinder moves up, the push rod at its output end continues to push the upper roller seat down, so that the upper and lower roller seats are raised and lowered synchronously until the bar is clamped. Through the left and right rack mechanical structures, the upper and lower roller seats are raised and lowered synchronously. When clamping bars of different specifications, the centers of the bars are ensured to be at the same height, and there is no need to electrically control the movement stroke of the upper and lower rollers separately. In addition, both the No. 1 rack and the No. 2 rack adopt a cylindrical structure, which is locked and fixed by locking nuts, so that the rack bearing capacity is also high, further improving the service life of the device and facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a rod constant center device using a centering method according to the present invention;

[0016] Figure 2 It is a cross-sectional view of a rod constant center device using a centering method according to the present invention;

[0017] Figure 3 It is a schematic diagram of the overall structure of an upper roller seat of a bar constant center device using a centering method of the present invention;

[0018] Figure 4 It is a schematic diagram of the overall structure of a first rack and a second rack of a bar constant center device using a centering method according to the present invention;

[0019] Figure 5 The present invention is a schematic diagram of the overall structure of a lower roller seat of a rod constant center device using a centering method.

[0020] In the figure: 1. Mounting frame; 2. Hydraulic cylinder; 3. Guide column No. 1; 4. Upper roller seat; 5. Lower roller seat; 6. Rack No. 1; 7. Rack No. 2; 8. Gear; 9. Guide column No. 2; 10. Hydraulic cylinder seat; 40. Clamping upper roller; 50. Clamping lower roller. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-5 As shown, a rod constant center device using a centering method includes a mounting frame 1, which is characterized in that: a No. 1 guide column 3 and a No. 2 guide column 9 are respectively inserted and fixedly installed on the upper end of the mounting frame 1, a hydraulic cylinder seat 10 is commonly fixedly installed on the upper ends of the No. 1 guide column 3 and the No. 2 guide column 9, a hydraulic cylinder seat 10 is fixedly installed on the upper end of the hydraulic cylinder seat 10, an upper roller seat 4 is fixedly installed on the output end of the hydraulic cylinder 2, a No. 2 rack 7 is fixedly installed on the upper front end of the upper roller seat 4, a No. 1 rack 6 is inserted and fixedly installed on the front end of the upper end of the hydraulic cylinder seat 10, a gear 8 is rotatably installed on the front end of the mounting frame 1, an upper roller seat 4 is commonly installed on the upper outer surfaces of the No. 1 guide column 3 and the No. 2 guide column 9, and a lower roller seat 5 is commonly installed on the lower outer surfaces of the No. 1 guide column 3 and the No. 2 guide column 9. Similarly, the mounting frame 1 structure is designed to be bilaterally symmetrical.

[0025] The push rod on it is pushed downward by the hydraulic cylinder 2, and the lower end of the push rod is fixedly connected to the upper roller seat 4, so as to push the upper roller seat 4 to slide downward on the No. 1 guide column 3 and the No. 2 guide column 9. When the upper roller seat 5 slides downward, the No. 2 rack 7 on it will also move downward. Therefore, the No. 2 rack 7 will drive the gear 8 to rotate, and when the gear 8 rotates, it will drive the No. 1 rack 6 to lift upward. The No. 1 rack 6, the hydraulic cylinder seat 10, the hydraulic cylinder 2, the No. 1 column 3, the No. 2 guide column 9 and the lower roller seat 5 are fixedly connected, so it will drive the hydraulic cylinder seat 10, the hydraulic cylinder 2, the No. 1 column 3, the No. 2 guide column 9 and the lower roller seat 5 to move upward, and when the hydraulic cylinder 2 moves upward , the push rod at its output end continues to push the upper roller seat 4 downward, so that the upper and lower roller seats are lifted and lowered synchronously, so that when the device clamps bars of different specifications, the center of the bars can be ensured to be at the same height, and there is no need to electrically control the movement stroke of the upper and lower rollers separately. At the same time, the No. 1 rack 6 and the No. 2 rack 7 are both cylindrical structures, which are locked and fixed by locking nuts. By loosening the locking nuts, the positions of the No. 1 rack 6 and the No. 2 rack 7 can be fine-tuned, thereby facilitating the installation and adjustment of the relative positions of the upper roller seat 4 and the lower roller seat 5, thereby improving the practicability of the device. In addition, the bearing capacity of the gear and the rack of the cylindrical structure is also relatively high, which further improves the service life of the device and is convenient for maintenance.

[0026] The upper end of the upper roller seat 4 is fixedly installed with a clamping upper roller 40, and the lower end of the lower roller seat 5 is fixedly installed with a clamping lower roller 50. When the upper roller seat and the lower roller seat are lifted and lowered synchronously, the clamping upper roller on the upper roller seat and the clamping lower roller on the lower roller seat will clamp the bar.

[0027] The upper roller seat 4 is interlaced and movably installed on the No. 1 guide column 3 and the No. 2 guide column 9. When the push rod at the output end of the hydraulic cylinder is pushed downward, since the upper roller seat is interlaced and movably installed on the No. 1 guide column and the No. 2 guide column, the upper roller seat can slide downward on the No. 1 guide column and the No. 2 guide column. Since the upper roller seat is fixedly connected to the No. 1 rack, the No. 1 rack on the upper roller seat can drive the gear to rotate downward accordingly.

[0028] The lower roller seat 5 is fixedly mounted on the No. 1 guide column 3 and the No. 2 guide column 9. When the upper roller seat 5 slides downward, the No. 2 rack 7 thereon will also move downward, so the No. 2 rack 7 will drive the gear 8 to rotate, and when the gear 8 rotates, it will drive the No. 1 rack 6 to lift upward, and the No. 1 rack 6, the hydraulic cylinder seat 10, the hydraulic cylinder 2, the No. 1 column 3, the No. 2 guide column 9 and the lower roller seat 5 are fixedly connected, so the hydraulic cylinder seat 10, the hydraulic cylinder 2, the No. 1 column 3, the No. 2 guide column 9 and the lower roller seat 5 will be driven to move upward.

[0029] The first rack 6 and the second rack 7 are respectively meshed and connected to the left and right ends of the gear 8. Since the first rack 6 and the second rack 7 are meshed and connected to the gear 8, the second rack 7 will drive the gear 8 to rotate, and when the gear 8 rotates, it will drive the first rack 6 to lift up.

[0030] It should be noted that the present invention is a bar constant center device using a centering method. First, the bar is placed on the clamping lower roller 50. At this time, the push rod thereon is driven downward by the hydraulic cylinder 2, and the lower end of the push rod is fixedly connected to the upper roller seat 4, thereby pushing the upper roller seat 4 to slide downward on the No. 1 guide column 3 and the No. 2 guide column 9. When the upper roller seat 5 slides downward, the No. 2 rack 7 thereon will also move downward. Therefore, the No. 2 rack 7 will drive the gear 8 to rotate, and when the gear 8 rotates, it will drive the No. 1 rack 6 to lift upward. The No. 1 rack 6, the hydraulic cylinder seat 10, the hydraulic cylinder 2, the No. 1 column 3, the No. 2 guide column 9 and the lower roller seat 5 are fixedly connected. Therefore, the hydraulic cylinder seat 10, the hydraulic cylinder 2, the No. 1 column 3, the No. 2 guide column 9 and the lower roller seat 5 will be driven to move upward, and when the hydraulic cylinder 2 moves upward, the push rod at its output end continues to push the upper roller seat 4 downward, so that the upper and lower roller seats are raised and lowered synchronously until the rod is clamped. Through the left and right rack mechanical structures, the upper and lower roller seats are raised and lowered synchronously. When clamping rods of different specifications, the center of the rods is ensured to be at the same height, and there is no need to electrically control the movement stroke of the upper and lower rollers separately. In addition, the No. 1 rack 6 and the No. 2 rack 7 both adopt a cylindrical structure, which is locked and fixed by locking nuts, so that the rack bearing capacity is also high, further improving the service life of the device and facilitating maintenance.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rod constant center device using a centering method, comprising a mounting frame (1), characterized in that: A first guide column (3) and a second guide column (9) are respectively inserted and fixedly installed on the upper end of the mounting frame (1), and a hydraulic cylinder seat (10) is fixedly installed on the upper end of the first guide column (3) and the second guide column (9). A hydraulic cylinder (2) is fixedly installed on the upper end of the hydraulic cylinder seat (10), and an upper roller seat (4) is fixedly installed on the output end of the hydraulic cylinder (2). A second rack (7) is fixedly installed on the upper front end of the upper roller seat (4). A first rack (6) is inserted and fixedly installed on the front end of the upper end of the hydraulic cylinder seat (10). A gear (8) is rotatably installed on the front end of the mounting frame (1). The upper roller seat (4) is installed on the upper outer surface of the first guide column (3) and the second guide column (9), and the lower outer surface of the first guide column (3) and the second guide column (9) is installed on the lower outer surface of the first guide column (3) and the second guide column (9). Similarly, the mounting frame (1) is designed to be bilaterally symmetrical.

2. A rod constant center device using a centering method according to claim 1, characterized in that: An upper clamping roller (40) is inserted and fixedly installed at the upper end of the upper roller seat (4), and a lower clamping roller (50) is inserted and fixedly installed at the lower end of the lower roller seat (5).

3. A rod constant center device using a centering method according to claim 1, characterized in that: The upper roller seat (4) is movably installed on the first guide column (3) and the second guide column (9).

4. A rod constant center device using a centering method according to claim 1, characterized in that: The lower roller seat (5) is fixedly mounted on the first guide column (3) and the second guide column (9).

5. The device for maintaining the center of a bar by centering according to claim 1, characterized in that: The first rack (6) and the second rack (7) are meshedly connected to the left and right ends of the gear (8) respectively.

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