Efficient rack end grinding device

Abstract

The utility model provides an efficient rack end polishing device, and relates to the field of machining. The efficient grinding device for the rack end comprises a machining table, a grinding piece, a transmission piece and a rack, a limiting clamping plate is arranged at the top of the machining table, a stepped groove is formed in the bottom of one side of the limiting clamping plate, a limiting assembly is slidably arranged at the bottom of the limiting clamping plate, and a bolt is arranged between the limiting assembly and the limiting clamping plate. According to the efficient grinding device for the rack end, a limiting clamping plate limits left-right movement of a rack through two trapezoidal plates, the limiting clamping plate is fixed by an electromagnet, the electromagnet cannot move at the moment, under the action of the electromagnet, movement of the limiting clamping plate is limited, and front-back movement of the rack is limited by cooperation of a limiting side plate and a transmission block; and through cooperation of the limiting clamping plate, the limiting assembly and the electromagnet, multi-position limiting can be rapidly conducted on the rack.

Description

Technical Field

[0001] The utility model relates to a grinding device, in particular to a high-efficiency grinding device for the end of a rack, and belongs to the technical field of mechanical processing. Background Art

[0002] A rack is a special gear with teeth distributed on a bar-shaped body. Racks are divided into spur racks and helical racks, which are used in pairs with spur cylindrical gears and helical cylindrical gears respectively. The tooth profile of the rack is a straight line rather than an involute, which is equivalent to a cylindrical gear with an infinite pitch circle radius. When processing precision racks, a special grinding device is required.

[0003] For example, the utility model with the existing patent application number: 202221206987.9 provides a side grinding device for rack processing, which belongs to the field of rack processing technology. It solves the problem that some existing grinding devices can only grind one side of the rack at a time during the processing process, which is inefficient. The side grinding device for rack processing includes a processing table, and the top of the processing table is respectively penetrated by a through groove and a transverse groove, and support tables are fixed on both sides of the processing table. A first hydraulic rod is fixed on the top of the support table, and a clamping plate is fixed on the output shaft of the first hydraulic rod.

[0004] In the actual use of the existing grinding device for racks, a clamping device is used to clamp the rack. However, the clamping device mostly clamps and fixes the rack from both sides, with fewer stress-bearing parts. Not only is the stability poor, but it is also unable to adapt well to racks of different sizes. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide an efficient grinding device for the end of a rack in order to solve the above-mentioned problem, so as to solve the problem that most of the clamping devices in the prior art clamp and fix the rack from both sides, which not only has poor stability but also cannot adapt well to racks of different sizes.

[0007] (II) Technical solution

[0008] The utility model is realized through the following technical scheme: a high-efficiency grinding device for the end of a rack, comprising a processing table, a grinding part, a transmission part and a rack, a limiting clamping plate is arranged on the top of the processing table, a stepped groove is opened on the bottom of one side of the limiting clamping plate, a limiting component is slidably arranged on the bottom of the limiting clamping plate, a bolt is arranged between the limiting component and the limiting clamping plate, an electromagnet is arranged on the bottom of the other side of the limiting clamping plate, and a square column is fixedly connected to the bottom of the electromagnet.

[0009] Preferably, the rack is arranged inside the processing table, and a limiting side plate is arranged on the side of the rack away from the electromagnet, and the limiting side plate is fixedly connected to the processing table.

[0010] Preferably, a groove is provided on one side of the top of the processing table, and one end of the limiting clamping plate passes through the groove.

[0011] Preferably, the bottom end of the square column passes through the processing table and extends to the bottom of the processing table. The bottom end of the square column is fixedly connected to a fixed bottom plate. A plurality of springs are fixedly connected between the fixed bottom plate and the processing table. The rebounding plurality of springs pull the fixed bottom plate to reset, and the fixed bottom plate drives the square column and the electromagnet fixedly connected to the square column to reset.

[0012] Preferably, the limit assembly includes a fixed block, sliding grooves are provided on both sides of the fixed block, and limit support plates are arranged inside the two sliding grooves. A square groove is provided at the bottom of the limit card plate, and the limit support plate is arranged inside the square groove and fixedly connected to the limit card plate. The fixed block can only move forward and backward under the support and limit of the limit support plate, and the trapezoidal plate fixedly connected to the fixed block and the transmission block fixedly connected to the two trapezoidal plates can also only move forward and backward.

[0013] Preferably, two trapezoidal plates are fixedly connected to the bottom of the fixing block, and the two trapezoidal plates are both arranged inside the tooth grooves of the rack. The limiting clamping plate limits the left and right movement of the rack through the two trapezoidal plates.

[0014] Preferably, a transmission block is fixedly connected between the two trapezoidal plates, the transmission block is rotatably connected to the bolt, a vertical plate is provided on the outer threaded sleeve of the bolt, and the vertical plate is fixedly connected to the limiting clamping plate to control the rotation direction of the bolt, so that the bolt can move forward and backward, pushing the transmission block to move forward and backward.

[0015] The utility model provides a high-efficiency grinding device for the end of a rack, which has the following beneficial effects:

[0016] 1. The rack end efficient grinding device, the limit card plate limits the left and right movement of the rack through two trapezoidal plates, the limit card plate is fixed by the electromagnet, the electromagnet cannot move at this time, under the action of the electromagnet, the movement of the limit card plate is limited, the front and rear movement of the rack is limited by the limit side plate and the transmission block, through the limit card plate, the limit assembly and the electromagnet, the rack can be quickly limited in multiple positions.

[0017] 2. The rack end efficient grinding device, the trapezoidal plate installed at the bottom of the limit card plate is at different heights from the bottom of the inner cavity of the processing table. The limit card plate and the limit assembly can adapt to racks of different heights, thereby improving the practicality of the grinding auxiliary device composed of the processing table, the limit card plate, the limit assembly, the electromagnet and other structures. The rotating bolt pushes the transmission block to rotate back and forth. After the operating bolt finally makes the transmission block press against the rear side of the rack, the rack is clamped between the transmission block and the limit side plate. During the grinding process of one end of racks of different widths, the forward and backward movement of the rack can be limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the processing table of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the limit clamp of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the fixing block of the utility model.

[0022]

Main component symbol description

[0023] 1. Processing table; 2. Grinding parts; 3. Transmission parts; 4. Rack; 5. Limiting plate; 6. Step groove; 7. Electromagnet; 8. Square column; 9. Fixed bottom plate; 10. Spring; 11. Limiting side plate; 12. Trapezoidal plate; 13. Fixed block; 14. Limiting support plate; 15. Transmission block; 16. Vertical plate; 17. Bolt; 18. Sliding groove; 19. Square groove. DETAILED DESCRIPTION

[0024] The embodiment of the utility model provides a high-efficiency grinding device for the end of a rack.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including a processing table 1, a grinding part 2, a transmission part 3 and a rack 4. A limit clamping plate 5 is arranged on the top of the processing table 1. A stepped groove 6 is opened at the bottom of one side of the limit clamping plate 5. A limit assembly is slidably arranged at the bottom of the limit clamping plate 5. A bolt 17 is arranged between the limit assembly and the limit clamping plate 5. An electromagnet 7 is arranged at the bottom of the other side of the limit clamping plate 5. A square column 8 is fixedly connected to the bottom of the electromagnet 7.

[0026] When the utility model is in use: when the rack 4 is placed inside the processing table 1, a limited side plate 11 is fixedly connected to the side of the processing table 1 away from the electromagnet 7, one side of the rack 4 is pressed against the limited side plate 11, so that the rack 4 is placed between the limited side plate 11 and the electromagnet 7, and then the limited card plate 5 is partially inserted into the groove opened on one side of the top of the processing table 1, and one end of the limited card plate 5 is controlled to pass through the groove, so that the stepped groove 6 is set to the outside of the processing table 1, and when the limited card plate 5 is pressed down, the left and right positions of the rack 4 are adjusted so that the limited card plate 5 can be placed between the limited side plate 11 and the electromagnet 7. The two trapezoidal plates 12 in the limiting assembly at the bottom of the positioning card plate 5 are moved to the inside of the tooth groove of the rack 4. At this time, the limiting card plate 5 limits the left and right movement of the rack 4 through the two trapezoidal plates 12, and the bottom of the limiting card plate 5 contacts the electromagnet 7 to push the electromagnet 7 to move downward, and then the electromagnet 7 is turned on. The electromagnet 7 is fixed together with the processing table 1 and the limiting card plate 5 through magnetic force. The limiting card plate 5 is fixed by the electromagnet 7, and the electromagnet 7 cannot move at this time. Under the action of the electromagnet 7, the movement of the limiting card plate 5 is limited;

[0027] At this time, the front side of the rack 4 is limited by the limiting side plate 11, and the transmission block 15 in the limiting assembly is against the rear side of the rack 4. When the limiting card plate 5 cannot move forward and backward, the forward and backward movement of the rack 4 is limited by the limiting side plate 11 and the transmission block 15. Through the cooperation of the limiting card plate 5, the limiting assembly and the electromagnet 7, the rack 4 can be quickly limited in multiple positions.

[0028] Subsequently, the driving device connected to the transmission member 3 is controlled to work, so that the grinding member 2 fixedly installed on the transmission member 3 is rotated and displaced, and one end of the rack 4 is ground. When the end of the rack 4 is processed, the electromagnet 7 is controlled to stop working, so that the limit clamp 5 and the fixing between the processing table 1 are removed, and the limit clamp 5 and the rack 4 are taken out of the processing table 1. At the same time, because the bottom end of the square column 8 passes through the processing table 1 and extends to the bottom of the processing table 1, a fixed bottom plate 9 is fixedly connected to the bottom end of the square column 8, and a plurality of springs 10 are fixedly connected between the fixed bottom plate 9 and the processing table 1. At this time, the rebounded multiple springs 10 pull the fixed bottom plate 9 to reset, and the fixed bottom plate 9 drives the square column 8 and the electromagnet 7 fixedly connected to the square column 8 to reset.

[0029] When it is necessary to process a rack 4 of another height, since a stepped groove 6 is opened at the bottom of one side of the limit clamp 5, a plurality of bottom surfaces of different heights are formed at the bottom of one side of the limit clamp 5. The front and rear positions of the limit clamp 5 are controlled so that the bottom surfaces of the limit clamp 5 at different heights enter the groove opened in the processing table 1, so that the corresponding bottom surface of the limit clamp 5 contacts with the processing table 1, and the height of the bottom of the limit clamp 5 from the bottom of the inner cavity of the processing table 1 changes accordingly, so that the trapezoidal plate 12 installed at the bottom of the limit clamp 5 has different heights from the bottom of the inner cavity of the processing table 1. The limit clamp 5 and the limiting assembly can adapt to racks 4 of different heights, thereby improving the practicability of the grinding auxiliary device composed of the processing table 1, the limit clamp 5, the limiting assembly, the electromagnet 7 and other structures.

[0030] When the height position of the limit card plate 5 is determined, hold the bolt 17 and rotate it. Since the vertical plate 16 with a threaded sleeve on the outer side of the bolt 17 is fixedly connected to the limit card plate 5, when the electromagnet 7 limits the forward and backward movement of the limit card plate 5, the bolt 17 can be moved forward and backward by controlling the rotation direction of the bolt 17. The bolt 17 pushes the transmission block 15 that is rotatably connected at one end. Since the two trapezoidal plates 12 are fixedly connected to the transmission block 15, the fixed block 13 in the limit assembly is fixedly connected to the two trapezoidal plates 12, so the trapezoidal plates 12, the transmission block 15 and the fixed block 1 3 moves synchronously, and the inside of the sliding grooves 18 opened on both sides of the fixed block 13 are provided with limited support plates 14, and the bottom of the limited card plate 5 is provided with a square groove 19, and the limited support plate 14 is arranged inside the square groove 19 and fixedly connected with the limited card plate 5. The fixed block 13 forms a sliding connection relationship with the limited card plate 5 through the limited support plate 14, so the fixed block 13 can only move forward and backward under the support and limit of the limited support plate 14, and the trapezoidal plate 12 fixedly connected to the fixed block 13 and the transmission block 15 fixedly connected to the two trapezoidal plates 12 can also only move forward and backward. Therefore, the rotating bolt 17 pushes the transmission block 15 to move forward and backward. After the operating bolt 17 finally makes the transmission block 15 press against the rear side of the rack 4, the rack 4 is clamped between the transmission block 15 and the limited side plate 11. During the grinding process of one end of the rack 4 with different widths, the forward and backward movement of the rack 4 can be limited.

[0031] Instructions attached Figure 2 As a reference, the distance between the upper and lower surfaces of the rack 4 is the height of the rack 4, and the distance between the front and rear surfaces of the rack 4 is the width of the rack 4.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency grinding device for a rack end, comprising a processing table (1), a grinding member (2), a transmission member (3) and a rack (4), characterized in that: A limit clamping plate (5) is arranged on the top of the processing table (1), a stepped groove (6) is provided at the bottom of one side of the limit clamping plate (5), a limit assembly is slidably arranged at the bottom of the limit clamping plate (5), a bolt (17) is arranged between the limit assembly and the limit clamping plate (5), an electromagnet (7) is arranged at the bottom of the other side of the limit clamping plate (5), and a square column (8) is fixedly connected to the bottom of the electromagnet (7).

2. The rack end efficient grinding device according to claim 1, characterized in that: The rack (4) is arranged inside the processing table (1), and a limiting side plate (11) is arranged on the side of the rack (4) away from the electromagnet (7), and the limiting side plate (11) is fixedly connected to the processing table (1).

3. The rack end efficient grinding device according to claim 1, characterized in that: A groove is provided on one side of the top of the processing table (1), and one end of the limiting clamping plate (5) passes through the groove.

4. The rack end efficient grinding device according to claim 1, characterized in that: The bottom end of the square column (8) passes through the processing table (1) and extends to the bottom of the processing table (1). The bottom end of the square column (8) is fixedly connected to a fixed bottom plate (9). A plurality of springs (10) are fixedly connected between the fixed bottom plate (9) and the processing table (1).

5. The rack end efficient grinding device according to claim 1, characterized in that: The limiting assembly comprises a fixed block (13), both sides of the fixed block (13) are provided with sliding grooves (18), the two sliding grooves (18) are provided with limiting support plates (14) inside, the bottom of the limiting clamping plate (5) is provided with a square groove (19), the limiting support plate (14) is arranged inside the square groove (19) and is fixedly connected to the limiting clamping plate (5).

6. The rack end efficient grinding device according to claim 5, characterized in that: Two trapezoidal plates (12) are fixedly connected to the bottom of the fixed block (13), and the two trapezoidal plates (12) are both arranged inside the tooth grooves of the rack (4).

7. The rack end efficient grinding device according to claim 6, characterized in that: A transmission block (15) is fixedly connected between the two trapezoidal plates (12), the transmission block (15) is rotatably connected to a bolt (17), a vertical plate (16) is threadedly sleeved on the outer side of the bolt (17), and the vertical plate (16) is fixedly connected to the limit clamping plate (5).

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