Heavy cross shaft surface machining and positioning device

Abstract

The utility model discloses a heavy cross shaft surface processing positioning device, which belongs to the technical field of heavy cross shaft processing and comprises a workbench, a first motor is bolted at the center of the bottom end of the workbench through a bolt, an output shaft of the first motor penetrates through the workbench and is provided with a rotating seat, a moving groove is formed in the top end of the rotating seat, and the rotating seat is provided with a rotating shaft. A moving groove is formed in the rotating table, a moving mechanism is installed in the moving groove, a fixing block is fixedly connected to the outer surface of the moving mechanism, the two ends of the fixing block are slidably connected with the inner side wall of the moving groove through sliding assemblies, a placing base is fixedly connected to the top end of the fixing block, and moving frames are fixedly connected to the two sides of the rotating table; and a lifting mechanism is fixedly connected to the top of the moving frame, the two ends of the lifting mechanism are slidably connected with the moving frame, and a clamping block is fixedly connected to the lower surface of the lifting mechanism, so that the stability of the heavy cross shaft during surface machining is improved, and the application range of the positioning device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy cross shaft processing, in particular to a heavy cross shaft surface processing positioning device. Background Art

[0002] The heavy-duty cross shaft is a key part in the universal joint of the automobile drive shaft. The verticality, symmetry and flatness of the four axis necks of the heavy-duty cross shaft and each axis are very high. The processing accuracy directly affects the balance and service life of the universal joint transmission. In order to ensure the quality of the surface processing of the heavy-duty cross shaft, a positioning device for the surface processing of the heavy-duty cross shaft is generally used. The current positioning device for the surface processing of the heavy-duty cross shaft can only simply fix the heavy-duty cross shaft. When encountering heavy-duty cross shafts of different sizes and lengths, the mold needs to be replaced. The surface of the heavy-duty cross shaft cannot be fixed during processing, resulting in angle deviation, which affects the processing quality of the heavy-duty cross shaft.

[0003] According to the publication number: CN211193627U, a positioning tool for processing a cross shaft is proposed, which includes a base plate and a mounting frame fixedly mounted on the base plate, the upper surface of the base plate is provided with at least two mutually parallel slide grooves, two screw slide seats are slidably mounted in the slide grooves, each screw slide seat is screwed with a wire lever, the two wire levers are fixedly connected, the wire lever is rotatably mounted below the base plate through the shaft seat, and a slider is slidably mounted on the upper surface of the base plate. The beneficial effect is that the positioning tool for processing a cross shaft described in the utility model is provided with a plurality of mutually parallel slide grooves, and when in use, two of the slide grooves can be reasonably selected according to the size of the cross shaft for installing the slider for clamping the cross shaft, thereby meeting the use requirements of clamping and fixing various common cross shafts of different sizes, significantly expanding the use scope of the existing positioning tool for processing a cross shaft, and having good practicality.

[0004] According to the above introduction of a positioning tool for cross-axis processing, although the application range of the cross-axis positioning tool is increased, the angle of the cross-axis is not fixed while the range is expanded. Angle deviation occurs during surface processing of the heavy cross-axis, resulting in deviation in the accuracy after processing. Therefore, we need to propose a heavy cross-axis surface processing positioning device. Utility Model Content

[0005] The purpose of the utility model is to provide a heavy-duty cross-shaft surface processing positioning device, which preliminarily fixes the heavy-duty cross-shaft through a placement seat, then drives the placement seat to clamp and fix the heavy-duty cross-shaft through a moving mechanism, and then fixes the angle of the heavy-duty cross-shaft by a lifting mechanism, so that the heavy-duty cross-shaft positioning device can fix heavy-duty cross-shafts of different sizes and lengths, avoiding angular movement when processing the surface of the heavy-duty cross-shaft, improving the processing efficiency of the heavy-duty cross-shaft surface processing, and solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy-duty cross-axis surface processing positioning device, comprising a workbench, a first motor is bolted to the center of the bottom end of the workbench by bolts, the output shaft of the first motor passes through the workbench and is installed with a rotating seat, a movable groove is opened at the top of the rotating seat, a movable mechanism is installed inside the movable groove, a fixed block is fixedly connected to the outer surface of the movable mechanism, both ends of the fixed block are slidably connected to the inner side wall of the movable groove through a sliding assembly, a placing seat is fixedly connected to the top of the fixed block, both sides of the rotating seat are fixedly connected to a movable frame, a lifting mechanism is fixedly connected to the top of the movable frame, both ends of the lifting mechanism are slidably connected to the movable frame, and a clamping block is fixedly connected to the lower surface of the lifting mechanism.

[0007] Preferably, the moving mechanism includes a second motor, which is fixed to the side wall of the rotating seat. The output shaft of the second motor passes through the rotating seat and extends to the placement slot to be fixedly connected with a forward and reverse threaded rod. The other end of the forward and reverse threaded rod is plugged and fixed with a bearing. The outer ring of the bearing is fixedly connected to the placement slot. The surface of the forward and reverse threaded rod is threadedly connected with a threaded sleeve, and the outer surface of the threaded sleeve is fixedly connected to the fixed block.

[0008] Preferably, the sliding assembly includes sliding blocks, and the sliding blocks are fixedly connected to both sides of the fixed block. A sliding groove is provided at a position of the sliding block corresponding to the inner side wall of the movable groove, and the sliding block is slidably connected to the inner cavity of the sliding groove.

[0009] Preferably, the lifting mechanism includes an electric cylinder, which is fixedly connected to the top of the moving frame, and the output end of the electric cylinder passes through the moving frame and extends downward to be fixedly connected with a connecting block, both ends of the connecting block pass through the moving frame and extend to the outside of the moving frame, and both ends of the connecting block are slidably connected to the inner cavity of the moving frame, and the lower surface of the connecting block is fixedly connected to the clamping block.

[0010] Preferably, a through groove is provided on one side facing the top of the placement seat, and the inner cavity of the through groove is arranged in an arc shape.

[0011] Preferably, the card block is arranged in an arc shape, the inner cavity of the card block is closely connected with a rubber pad, and the card block is located at the center of the connecting seat.

[0012] Preferably, two groups of limit blocks are provided at both ends of the connection block, and the inner side walls of the two groups of limit blocks are slidably connected to the surface of the movable frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a positioning device for heavy-duty cross shaft surface processing. The heavy-duty cross shafts of different sizes can be initially fixed by setting a placement seat, and the two ends of heavy-duty cross shafts of different lengths can be fixed by setting a moving mechanism, thereby improving the stability of the heavy-duty cross shaft during surface processing and increasing the application range of the positioning device for heavy-duty cross shaft surface processing;

[0015] 2. Through the setting of the lifting mechanism, the two ends of heavy-duty cross shafts of different sizes can be fixed. Through the setting of the clamping block, the friction on the surface of the heavy-duty cross shaft is increased, which avoids the angle deviation when processing the surface of the heavy-duty cross shaft, improves the processing quality of the surface of the heavy-duty cross shaft, and reduces the work intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model from a top view;

[0018] Figure 3 It is a schematic structural diagram of a side cross-section of the rotating seat of the utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0020] In the figure: 1. workbench; 2. first motor; 3. rotating seat; 4. moving slot; 5. moving mechanism; 51. second motor; 52. positive and negative threaded rod; 53. bearing; 54. threaded sleeve; 6. fixed block; 7. sliding assembly; 71. slider; 72. slide slot; 8. placement seat; 9. moving frame; 10. lifting mechanism; 101. electric cylinder; 102. connecting block; 11. clamping block; 12. rubber pad; 13. limit block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a heavy-duty cross-axis surface processing positioning device, including a workbench 1, a first motor 2 is bolted to the center of the bottom end of the workbench 1 by bolts, the output shaft of the first motor 2 passes through the workbench 1 and is installed with a rotating seat 3, a moving groove 4 is opened at the top of the rotating seat 3, a moving mechanism 5 is installed inside the moving groove 4, a fixed block 6 is fixedly connected to the outer surface of the moving mechanism 5, both ends of the fixed block 6 are slidably connected to the inner side wall of the moving groove 4 through a sliding assembly 7, a placing seat 8 is fixedly connected to the top of the fixed block 6, both sides of the rotating seat 3 are fixedly connected to a moving frame 9, and the top of the moving frame 9 is fixedly connected to a lifting frame Mechanism 10, both ends of the lifting mechanism 10 are slidably connected to the moving frame 9, and the lower surface of the lifting mechanism 10 is fixedly connected with a clamping block 11. The heavy cross shaft is placed on the placing seat, and then the moving mechanism 5 is adjusted to clamp the heavy cross shaft. The lifting mechanism 10 on the mounting frame drives the clamping block 11 to move the heavy cross shaft, and the angle of the heavy cross shaft is fixed. Then, the first motor 2 provides a driving force to drive the rotating seat 3 to rotate and cooperate with other tools to process the surface of the heavy cross shaft, which increases the usage range of the positioning device for surface processing of the heavy cross shaft and improves the processing quality of the surface processing of the heavy cross shaft.

[0023] The moving mechanism 5 includes a second motor 51, which is fixed to the side wall of the rotating seat 3. The output shaft of the second motor 51 passes through the rotating seat 3 and extends to the placement groove, where a positive and negative threaded rod 52 is fixedly connected. A bearing 53 is inserted and fixed to the other end of the positive and negative threaded rod 52. The outer ring of the bearing 53 is fixedly connected to the placement groove. A threaded sleeve 54 is threadedly connected to the surface of the positive and negative threaded rod 52. The outer surface of the threaded sleeve 54 is fixedly connected to the fixed block 6. The second motor 51 provides a driving force to drive the positive and negative threaded rod 52 to rotate. Because the threaded sleeve 54 is threadedly connected to the surface of the positive and negative threaded rod 52, the positive and negative threaded rod 52 drives the threaded sleeve 54 to move. Due to the setting of the sliding component 7, the threaded sleeve 54 is restricted to move up and down on the surface of the positive and negative threaded rod 52, so that the threaded sleeve 54 drives the placement seat 8 to clamp and fix the heavy cross shaft.

[0024] The sliding assembly 7 includes a slider 71, which is fixedly connected to both sides of the fixed block 6. A slide groove 72 is provided at a position corresponding to the inner wall of the movable groove 4. The slider 71 is slidably connected to the inner cavity of the slide groove 72. Through the arrangement of the slider 71 and the slide groove 72, the smoothness of the movement of the fixed block 6 driven by the threaded sleeve 54 is increased, so that when the threaded sleeve 54 drives the fixed block 6 to move, it can only move up and down.

[0025] The lifting mechanism 10 includes an electric cylinder 101, which is fixedly connected to the top of the moving frame 9. The output end of the electric cylinder 101 passes through the moving frame 9 and extends downward to be fixedly connected with a connecting block 102. Both ends of the connecting block 102 pass through the moving frame 9 and extend to the outside of the moving frame 9. Both ends of the connecting block 102 are slidably connected to the inner cavity of the moving frame 9. The lower surface of the connecting block 102 is fixedly connected to the clamping block 11. The driving force is provided by the electric cylinder 101, so that the connecting block 102 drives the connecting block 102 to move toward the heavy cross shaft, so that the clamping block 11 on the lower surface of the connecting block 102 fixes the heavy cross shaft, thereby avoiding deviation when processing the surface of the heavy cross shaft, and improving the stability of the heavy cross shaft during surface processing.

[0026] A through slot is provided on one side facing the top of the placement seat 8 , and the inner cavity of the through slot is arranged in an arc shape. The placement seat 8 is used to preliminarily fix heavy cross shafts of different sizes.

[0027] The block 11 is arranged in an arc shape, and the inner cavity of the block 11 is fitted with a rubber pad 12. The block 11 is located at the center of the connecting seat. The angle of the heavy cross shaft is fixed by the block 11, and the friction with the surface of the heavy cross shaft is increased by the setting of the rubber pad 12.

[0028] Two sets of limit blocks 13 are provided at both ends of the connecting block 102, and the inner side walls of the two sets of limit blocks 13 are slidably connected to the surface of the movable frame 9. Through the setting of the limit blocks 13, the connecting block 102 is restricted inside the movable frame 9 to prevent the connecting block 102 from sliding out of the movable frame 9 when sliding.

[0029] During specific use, the heavy-duty cross shaft is placed on the placement seat 8 for preliminary fixation, and then the second motor 51 is started to provide driving force to drive the forward and reverse threaded rods 52 to rotate. Because the slider 71 is slidably connected to the inner cavity of the slide groove 72, when the forward and reverse threaded rods 52 drive the threaded sleeve 54 to move, the threaded sleeve 54 can only drive the fixed block 6 to move up and down, so that the fixed block 6 drives the placement seat 8 to clamp the heavy-duty cross shaft. Then, the electric cylinder 101 provides driving force to drive the connecting block 102 to move. Through the limitation of the limit block 13, the connecting block 102 is prevented from sliding out of the moving frame 9 when driving the clamping block 11 to move, so as to fix the angle of the heavy-duty cross shaft. Then, the first motor 2 is started to provide driving force to drive the rotating seat 3 to rotate, and the surface of the heavy-duty cross shaft is processed through other processing steps, thereby increasing the scope of use of the positioning device for surface processing of the heavy-duty cross shaft, increasing the processing quality of the surface processing of the heavy-duty cross shaft, improving the stability of the positioning device for surface processing of the heavy-duty cross shaft, and reducing the work intensity of the staff.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty cross-shaft surface processing positioning device, comprising a workbench (1), characterized in that: A first motor (2) is bolted to the center of the bottom end of the workbench (1) by bolts, the output shaft of the first motor (2) passes through the workbench (1) and is installed with a rotating seat (3), the top of the rotating seat (3) is provided with a moving groove (4), the inside of the moving groove (4) is installed with a moving mechanism (5), the outer surface of the moving mechanism (5) is fixedly connected with a fixed block (6), the two ends of the fixed block (6) are slidably connected to the inner side wall of the moving groove (4) through a sliding assembly (7), the top of the fixed block (6) is fixedly connected with a placing seat (8), both sides of the rotating seat (3) are fixedly connected with a moving frame (9), the top of the moving frame (9) is fixedly connected with a lifting mechanism (10), the two ends of the lifting mechanism (10) are slidably connected to the moving frame (9), and the lower surface of the lifting mechanism (10) is fixedly connected with a clamping block (11).

2. A heavy-duty cross-shaft surface processing positioning device according to claim 1, characterized in that: The moving mechanism (5) comprises a second motor (51), the second motor (51) is fixed to the side wall of the rotating seat (3), the output shaft of the second motor (51) passes through the rotating seat (3) and extends to the placement groove and is fixedly connected to a forward and reverse threaded rod (52), the other end of the forward and reverse threaded rod (52) is plugged and fixed with a bearing (53), the outer ring of the bearing (53) is fixedly connected to the placement groove, the surface of the forward and reverse threaded rod (52) is connected to a threaded sleeve (54) through a thread, and the outer surface of the threaded sleeve (54) is fixedly connected to a fixed block (6).

3. A heavy-duty cross-shaft surface processing positioning device according to claim 1, characterized in that: The sliding assembly (7) comprises a sliding block (71), wherein the sliding block (71) is fixedly connected to both sides of the fixed block (6), a sliding groove (72) is provided at a position corresponding to the inner side wall of the movable groove (4) of the sliding block (71), and the sliding block (71) is slidably connected to the inner cavity of the sliding groove (72).

4. A heavy-duty cross-shaft surface processing positioning device according to claim 1, characterized in that: The lifting mechanism (10) comprises an electric cylinder (101), the electric cylinder (101) is fixedly connected to the top of the moving frame (9), the output end of the electric cylinder (101) passes through the moving frame (9), extends downward and is fixedly connected to a connecting block (102), both ends of the connecting block (102) pass through the moving frame (9) and extend to the outside of the moving frame (9), and both ends of the connecting block (102) are slidably connected to the inner cavity of the moving frame (9), and the lower surface of the connecting block (102) is fixedly connected to a clamping block (11).

5. A heavy-duty cross-shaft surface processing positioning device according to claim 1, characterized in that: A through groove is provided on one side facing the top of the placement seat (8), and the inner cavity of the through groove is arranged in an arc shape.

6. A heavy-duty cross-shaft surface processing positioning device according to claim 1, characterized in that: The card block (11) is arranged in an arc shape, the inner cavity of the card block (11) is fitted with a rubber pad (12), and the card block (11) is located at the center of the connection seat.

7. A heavy-duty cross-shaft surface processing positioning device according to claim 4, characterized in that: Two sets of limit blocks (13) are provided at both ends of the connection block (102), and the inner side walls of the two sets of limit blocks (13) are slidably connected to the surface of the moving frame (9).

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