Bending device for spline shaft machining

Abstract

The utility model relates to the technical field of spline shaft machining, and discloses a bending device for spline shaft machining, which comprises a base plate, two groups of guide rails are symmetrically arranged on the upper surface of the base plate, the two groups of guide rails are connected with sliding tables in a sliding manner, and shaft end positioning mechanisms are arranged on the upper surface of the base plate and the upper surfaces of the sliding tables. A vertical plate is arranged at one end of the upper surface of the base plate, and a top bending mechanism is arranged on one side of the vertical plate. The top bending mechanism comprises a one-way screw rod and a movable seat; through cooperation of shaft end positioning mechanisms, a top bending mechanism and a vertical plate, spline shafts of different specifications can be conveniently fixed through the two sets of shaft end positioning mechanisms, then a second motor drives a one-way screw to adjust the position of a mounting base, and therefore an air cylinder drives a top block to bend the spline shafts; and different positions on the spline shaft can be conveniently bent, and the spline shaft bending efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spline shaft processing, in particular to a bending device for spline shaft processing. Background Art

[0002] The spline shaft is a kind of mechanical transmission. Like the flat key, semicircular key and wedge key, it transmits mechanical torque. There is a longitudinal keyway on the surface of the shaft, and the rotating part on the shaft also has a corresponding keyway to keep rotating synchronously with the shaft.

[0003] In the prior art, the Chinese utility model with publication number: CN208466914U discloses a bending device for processing a spline shaft, including a bending wheel and a connecting plate, wherein an axial hole is provided at the center of the bending wheel, a central shaft passes through the axial hole, a bearing sleeve is sleeved on the outer side of the central shaft, the bearing sleeve is welded and connected to the connecting plate, two connecting plates are provided, a connecting seat is provided between the two connecting blocks, a pressure plate is provided on the left side of the connecting plate, a screw rod is provided on the right side, a nut is provided on the outer side of the screw rod, and the external thread of the screw rod matches the internal thread of the nut, the two ends of the nut are connected to the inner side of the connecting plate through a nut welding pad, the ends of the two connecting plates are connected through a top plate, an opening is provided in the center of the top plate, and the end of the screw rod passes through the opening and is connected to an adjusting handle. The utility model has a novel structural design and is easy to operate, can realize rapid bending of the spline shaft, and does not damage the outer wall of the spline shaft, thereby improving the processing efficiency of the spline shaft;

[0004] In the above technical solution, the handle needs to be adjusted manually when bending the spline shaft. When the shaft diameter of the spline shaft is large, the bending work is time-consuming and laborious, and the positioning effect of the spline shaft is poor, which is not conducive to bending different positions of the spline shaft, thereby reducing the bending efficiency of the spline shaft. Therefore, we need to propose a bending device for spline shaft processing. Utility Model Content

[0005] The purpose of the utility model is to provide a bending device for spline shaft processing, which is convenient for quickly fixing the spline shaft and adjusting the spacing between the fixing points of the spline shaft, thereby facilitating bending of different positions of the spline shaft, improving the application scope of the device, 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 bending device for processing a spline shaft, comprising a base plate, the upper surface of the base plate is symmetrically provided with two sets of guide rails, the two sets of guide rails are slidably connected with a slide table, the upper surface of the base plate and the upper surface of the slide table are both provided with a shaft end positioning mechanism, a vertical plate is provided at one end of the upper surface of the base plate, and a top bending mechanism is provided on one side of the vertical plate;

[0007] The top bending mechanism includes a one-way screw and a moving seat, the upper surface of the moving seat is fixedly connected to an upper guide block threadedly connected to the one-way screw, one end of the one-way screw is driven by a second motor, a cylinder is arranged on one side of the moving seat, the telescopic end of the cylinder passes through the moving seat and is fixedly connected to a top block, one end of the top block is rounded, and one end of the top block is provided with an anti-slip pad.

[0008] Preferably, a mounting groove for mounting the movable seat is provided on one side of the vertical plate, and a through hole for sliding connection of the upper guide block is provided on the top of the mounting groove.

[0009] Preferably, a bottom hole is formed at the bottom of the mounting groove, and a lower guide block slidably connected to the bottom hole is fixedly connected to the lower surface of the movable seat.

[0010] Preferably, both ends of the upper surface of the vertical plate are fixedly connected with protrusions, both ends of the one-way screw are rotatably connected to opposite sides of the two groups of protrusions, and the second motor is installed on the side opposite to one group of protrusions and the one-way screw.

[0011] Preferably, a scale plate is fixedly connected to one side of the vertical plate, and a second pointer is provided at the lower end of the other side of the movable seat.

[0012] Preferably, the shaft end positioning mechanism includes a fixed seat, a rectangular groove is opened on the upper surface of the fixed seat, a bidirectional screw is rotatably connected in the rectangular groove, one end of the bidirectional screw passes through the fixed seat and is driven by a first motor, and both ends of the bidirectional screw are threadedly connected to sliders.

[0013] Preferably, the upper surfaces of the two groups of sliding blocks are fixedly connected with clamping plates, the opposite sides of the two groups of clamping plates are provided with arc-shaped clamping grooves, and the opposite sides of the two groups of clamping plates are bonded with protective pads.

[0014] Preferably, a partition is fixedly connected to the inner cavity of the installation groove, the axes of the two groups of clamping plates and the axis of the top block are arranged in the same plane, and a first pointer is fixedly connected to one side of the fixing seat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model mainly realizes the cooperation between the shaft end positioning mechanism, the top bending mechanism and the vertical plate, and facilitates the fixing of spline shafts of different specifications through two sets of shaft end positioning mechanisms, and then the second motor drives the one-way screw to adjust the position of the mounting seat, so that the cylinder drives the top block to bend the spline shaft, which is convenient for bending different positions on the spline shaft and improving the efficiency of bending the spline shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the shaft end positioning mechanism structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the top bending mechanism structure of the utility model.

[0020] In the figure: 1, base plate; 2, guide rail; 3, slide; 4, shaft end positioning mechanism; 41, fixed seat; 42, first pointer; 43, rectangular groove; 44, partition; 45, bidirectional screw; 46, first motor; 47, clamp; 48, slider; 49, protective pad; 5, vertical plate; 6, scale plate; 7, mounting groove; 8, bottom hole; 9, bump; 10, through hole; 11, top bending mechanism; 111, one-way screw; 112, second motor; 113, moving seat; 114, lower guide block; 115, upper guide block; 116, cylinder; 117, top block; 118, anti-slip pad; 119, second pointer. 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 1-3 The utility model provides a technical solution: a bending device for processing a spline shaft, comprising a base plate 1, two sets of guide rails 2 are symmetrically arranged on the upper surface of the base plate 1, the two sets of guide rails 2 are slidably connected with a slide 3, the upper surface of the base plate 1 and the upper surface of the slide 3 are both provided with a shaft end positioning mechanism 4, a vertical plate 5 is arranged at one end of the upper surface of the base plate 1, and a top bending mechanism 11 is arranged on one side of the vertical plate 5;

[0023] The top bending mechanism 11 includes a one-way screw 111 and a moving seat 113. The upper surface of the moving seat 113 is fixedly connected to an upper guide block 115 threadedly connected to the one-way screw 111. One end of the one-way screw 111 is driven by a second motor 112. A cylinder 116 is provided on one side of the moving seat 113. The telescopic end of the cylinder 116 penetrates the moving seat 113 and is fixedly connected to a top block 117. One end of the top block 117 is rounded, and one end of the top block 117 is provided with an anti-slip pad 118.

[0024] One side of the vertical plate 5 is provided with an installation groove 7 for installing the movable seat 113, and the top of the installation groove 7 is provided with a through hole 10 for sliding connection of the upper guide block 115. The upper guide block 115 slides in the through hole 10, thereby improving the stability of the movement of the movable seat 113.

[0025] A bottom hole 8 is formed at the bottom of the mounting groove 7, and a lower guide block 114 slidably connected to the bottom hole 8 is fixedly connected to the lower surface of the movable seat 113. The bottom hole 8 guides the movable seat 113 during movement, thereby improving the stability of the movement of the movable seat 113.

[0026] Both ends of the upper surface of the vertical plate 5 are fixedly connected with protrusions 9, and the two ends of the one-way screw 111 are rotatably connected to the opposite sides of the two groups of protrusions 9. The second motor 112 is installed on the side opposite to the one-way screw 111 of one group of protrusions 9. The protrusions 9 facilitate the installation of the one-way screw 111 and facilitate the second motor 112 to drive the one-way screw 111 to adjust the position of the moving seat 113.

[0027] A scale plate 6 is fixedly connected to one side of the vertical plate 5, and a second pointer 119 is provided at the lower end of the other side of the movable seat 113. The second pointer 119 facilitates accurate adjustment of the position of the movable seat 113, thereby facilitating control of the bending position of the spline shaft.

[0028] The shaft end positioning mechanism 4 includes a fixed seat 41, and a rectangular groove 43 is opened on the upper surface of the fixed seat 41. A bidirectional screw 45 is rotatably connected in the rectangular groove 43. One end of the bidirectional screw 45 passes through the fixed seat 41 and is driven by a first motor 46. Both ends of the bidirectional screw 45 are threadedly connected with sliders 48. The bidirectional screw 45 is driven by the first motor 46 to drive the two groups of sliders 48 to move relative to each other, thereby facilitating the relative movement of the clamping plate 47, so as to clamp and fix the spline shaft.

[0029] The upper surfaces of the two groups of sliders 48 are fixedly connected with clamping plates 47, and arc-shaped clamping grooves are opened on the opposite sides of the two groups of clamping plates 47. Protective pads 49 are bonded to the opposite sides of the two groups of clamping plates 47. The arc-shaped clamping grooves on the clamping plates 47 make the protective pads 49 fit with the shaft ends of the spline shaft, thereby facilitating the bending of the spline shaft.

[0030] A partition plate 44 is fixedly connected to the inner cavity of the mounting groove 7, and the axis centers of the two sets of clamping plates 47 and the top block 117 are arranged in the same plane. A first pointer 42 is fixedly connected to one side of the fixing seat 41. The first pointer 42 is used to facilitate observation of the spacing between the two sets of shaft end positioning mechanisms 4, thereby controlling the bending length of the spline shaft and improving the bending accuracy.

[0031] When in use, one end of the spline shaft is placed in the shaft end positioning mechanism 4 on the base plate 1, and the shaft end positioning mechanism 4 on the slide 3 is adjusted according to the position required for bending, and then the other end of the spline shaft is set in the shaft end positioning mechanism 4 on the slide 3, and the one-way screw 111 is driven by the second motor 112 to drive the upper guide block 115 to slide along the through hole 10, so that the moving seat 113 moves along the mounting groove 7, and then the moving seat 113 moves to the position where the spline shaft needs to be bent, and the cylinder 116 drives the top block 117 to resist the spline shaft, and then the spline shaft is bent, thereby facilitating the bending of the spline shaft and improving the bending efficiency of the spline shaft.

[0032] 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 bending device for processing a spline shaft, characterized in that: The invention comprises a base plate (1), wherein two groups of guide rails (2) are symmetrically arranged on the upper surface of the base plate (1), and the two groups of guide rails (2) are both slidably connected to a slide table (3), and the upper surface of the base plate (1) and the upper surface of the slide table (3) are both provided with an axis end positioning mechanism (4), and a vertical plate (5) is arranged at one end of the upper surface of the base plate (1), and a top bending mechanism (11) is arranged on one side of the vertical plate (5); The bending mechanism (11) comprises a one-way screw (111) and a movable seat (113); an upper guide block (115) threadedly connected to the one-way screw (111) is fixedly connected to the upper surface of the movable seat (113); one end of the one-way screw (111) is driven by a second motor (112); a cylinder (116) is arranged on one side of the movable seat (113); a telescopic end of the cylinder (116) passes through the movable seat (113) and is fixedly connected to a top block (117); one end of the top block (117) is rounded; and one end of the top block (117) is provided with an anti-slip pad (118).

2. A bending device for processing a spline shaft according to claim 1, characterized in that: A mounting groove (7) for mounting the movable seat (113) is provided on one side of the vertical plate (5), and a through hole (10) for sliding connection of the upper guide block (115) is provided on the top of the mounting groove (7).

3. A bending device for processing a spline shaft according to claim 2, characterized in that: A bottom hole (8) is provided at the bottom of the installation groove (7), and a lower guide block (114) which is slidably connected to the bottom hole (8) is fixedly connected to the lower surface of the movable seat (113).

4. A bending device for processing a spline shaft according to claim 3, characterized in that: Both ends of the upper surface of the vertical plate (5) are fixedly connected with protrusions (9), and both ends of the one-way screw (111) are rotatably connected to the opposite sides of the two groups of protrusions (9), and the second motor (112) is installed on the side of one group of protrusions (9) opposite to the one-way screw (111).

5. A bending device for processing a spline shaft according to claim 4, characterized in that: A scale plate (6) is fixedly connected to one side of the vertical plate (5), and a second pointer (119) is provided at the lower end of the other side of the movable seat (113).

6. A bending device for processing a spline shaft according to claim 5, characterized in that: The shaft end positioning mechanism (4) comprises a fixing seat (41), the upper surface of the fixing seat (41) is provided with a rectangular groove (43), a bidirectional screw rod (45) is rotatably connected in the rectangular groove (43), one end of the bidirectional screw rod (45) passes through the fixing seat (41) and is driven by a first motor (46), and both ends of the bidirectional screw rod (45) are threadedly connected to sliders (48).

7. A bending device for processing a spline shaft according to claim 6, characterized in that: The upper surfaces of the two groups of sliders (48) are fixedly connected with clamping plates (47), the opposite sides of the two groups of clamping plates (47) are provided with arc-shaped clamping grooves, and the opposite sides of the two groups of clamping plates (47) are bonded with protective pads (49).

8. A bending device for processing a spline shaft according to claim 7, characterized in that: A partition plate (44) is fixedly connected to the inner cavity of the installation groove (7), the axis centers of the two groups of clamping plates (47) and the axis center of the top block (117) are arranged in the same plane, and a first pointer (42) is fixedly connected to one side of the fixing seat (41).

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