Positioning assembly for hollow shaft machining

Abstract

The utility model relates to the technical field of hollow shaft machining, in particular to a positioning assembly for hollow shaft machining, which comprises a bottom plate and two supporting plates, the supporting plates are arranged on the bottom plate, a long rod is arranged between the two supporting plates, and two abutting plates are arranged on the long rod; the long rod is provided with at least one set of sleeves and located between the two abutting plates, the abutting plates, the sleeves and the long rod are located on the same axis, and moving blocks are arranged in the sleeves. According to the positioning assembly for machining the hollow shaft, the hollow shaft and the long rod can be located on the same axis when the hollow shaft is installed through the sleeve arranged on the long rod and matched with the moving block, the pulley and the spring, follow-up clamping is facilitated, correction needs to be conducted during clamping, and the hollow shaft can be conveniently machined by stretching out and drawing back the moving block, the extending block and the spring. According to the hollow shaft clamping device, workpieces can adapt to hollow shafts of different sizes, and the hollow shafts of different lengths can be clamped under the action of the movable abutting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow shaft processing, in particular to a positioning component for hollow shaft processing. Background Art

[0002] A hollow shaft refers to a shaft with a through hole in the center and an internal keyway in the through hole. The outer surface of the shaft is machined with a stepped cylinder and an external keyway. The hollow shaft needs to have its outer cylindrical surface machined. It is usually clamped by an outer cylindrical grinding fixture and then the outer cylindrical surface grinding operation is performed.

[0003] When a hollow shaft processing device is processing a hollow shaft, in order to ensure that the specifications of the processed hollow shaft are consistent, it is usually necessary to always position the processed hollow shaft at the same position. However, when the existing equipment is clamping the hollow shaft, the proofreading process is relatively cumbersome, which greatly increases the time required for clamping the hollow shaft. Therefore, a positioning component for hollow shaft processing is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A positioning assembly for processing a hollow shaft comprises a base plate and two supporting plates, wherein the supporting plate is arranged on the base plate, a long rod is arranged between the two supporting plates, and two abutment plates are arranged on the long rod; at least one set of sleeves is arranged on the long rod and is located between the two abutment plates, the abutment plates, sleeves and long rods are located on the same axis, a moving block is arranged in the sleeve, and one end away from the sleeve passes through and extends to the outside of the sleeve, an installation groove is arranged on the moving block, a pulley is arranged in the installation groove, a connecting plate is arranged on the moving block and is located in the sleeve, and a spring is arranged between the connecting plate and the sleeve.

[0006] Furthermore, the two support plates are respectively fixed and hinged on the bottom plate.

[0007] Furthermore, the number of sleeves in each group is not less than two, and no less than two sleeves are equidistantly distributed on the long rod at a circumference.

[0008] Furthermore, at least two grooves are provided in the abutment plate, an extension block is provided in the groove, and one end away from the abutment block penetrates and extends to the outside of the groove, a limit plate is provided on the extension block, and the limit plate is located inside the groove.

[0009] Furthermore, a thread groove is provided on the long rod corresponding to the abutment plate, a through hole is provided on the abutment plate for the long rod to pass through, and an external thread is provided in the through hole, and the external thread is threadably connected to the thread groove.

[0010] The beneficial effects of the utility model are as follows: the positioning assembly for processing a hollow shaft, through a sleeve arranged on a long rod, and in cooperation with a moving block, a pulley and a spring, can make the hollow shaft and the long rod be located on the same axis during installation, so as to facilitate subsequent clamping, and proofreading is required during clamping; through the telescopic moving block and the extension block, as well as the spring, the workpiece can be adapted to hollow shafts of different sizes, and under the action of the moving abutment plate, hollow shafts of different lengths can also be clamped.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure inside the sleeve of the utility model.

[0014] Figure 3 It is a schematic diagram of the split structure of the extension block and the abutment plate of the utility model.

[0015] The reference numerals in the figures are: 1 bottom plate, 2 support plate, 3 extension block, 4 sleeve, 5 abutment plate, 6 long rod, 7 groove, 8 limit plate, 9 moving block, 10 pulley, 11 installation groove, 12 connecting plate, 13 spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1 to 3 The utility model includes a bottom plate 1 and two support plates 2, the support plate 2 is arranged on the bottom plate 1, a long rod 6 is arranged between the two support plates 2, two abutment plates 5 are arranged on the long rod 6, at least one group of sleeves 4 is arranged on the long rod 6 and is located between the two abutment plates 5, the abutment plates 5, the sleeve 4 and the long rod 6 are located on the same axis, a moving block 9 is arranged in the sleeve 4, and one end away from the sleeve 4 penetrates and extends to the outside of the sleeve 4, a mounting groove 11 is arranged on the moving block 9, a pulley 10 is arranged in the mounting groove 11, a connecting plate 12 is arranged on the moving block 9 and is located in the sleeve 4, and a spring 13 is arranged between the connecting plate 12 and the sleeve 4.

[0018] Furthermore, the two support plates 2 are respectively fixed and hinged on the bottom plate 1 .

[0019] When the cam 10 is in the state of being pressed down, the spring 13 in the sleeve 4 is pressed down, and the spring 13 in the sleeve 4 is in a contracted state, and the pulley 10 is pressed down by the elastic force of the spring 13, so that the pulley 10 can be tightly abutted with the inside of the hollow shaft. After the installation of the hollow shaft is completed, the abutment plate 5 is moved to abut against the hollow shaft, and the hollow shaft can be clamped and installed, and is located on the same axis as the long rod 6; the hollow shaft can be clamped and installed in this way, and the hollow shaft can be clamped and installed quickly and effectively, and the clamped hollow shaft can be proofread under the action of the spring 13 and the moving block 9 when installing.

[0020] It should be noted that, through the elastic force of the spring 13 and in cooperation with the telescopic moving block 9, hollow shafts of different specifications can also be adapted, thereby improving the adaptability of the device.

[0021] Furthermore, the number of sleeves 4 in each group is not less than two.

[0022] Furthermore, at least two sleeves 4 are equidistantly distributed on the long rod 6 circumferentially.

[0023] Specifically, the hollow shaft can be positioned stably and effectively through a plurality of sleeves 4, moving blocks 9 and pulleys 10 evenly distributed on the long rod 6, thereby improving the positioning effect and the processing effect of the hollow shaft.

[0024] In a specific embodiment, the left support plate 2 is fixed on the base plate 1, the right support plate 2 is hinged to the base plate 1 through a hinge shaft, and a positioning portion for positioning the long rod 6 is provided on the left support plate 2, a driving unit connected to the long rod 6 is provided on the left support plate 2, the sleeve 4 is fixed on the long rod 6, the limit plate 8 is slidably connected in the sleeve 4, and the pulley 10 is rotatably connected in the groove 7 through a hinge shaft.

[0025] See also Figure 3 The utility model also includes at least two grooves 7 arranged on the abutment plate 5, an extension block 3 is arranged in the groove 7, and one end away from the abutment block passes through and extends to the outside of the groove 7, a limiting plate 8 is arranged on the extension block 3, and the limiting plate 8 is located inside the groove 7.

[0026] In actual use, hollow shafts of different sizes will be positioned. At this time, the extension block 3 can be moved out of the groove 7 to increase the abutment area of ​​the abutment plate 5, so that the device can adapt to hollow shafts of different sizes.

[0027] Furthermore, a thread groove is provided on the long rod 6 corresponding to the abutment plate 5, a through hole is provided on the abutment plate 5 for the long rod 6 to pass through, and an external thread is provided in the through hole, and the external thread is threadably connected to the thread groove.

[0028] It can be understood that when the hollow shaft is positioned by the abutment plate 5, the abutment plate 5 is rotated, and with the cooperation of the external thread and the thread groove, the abutment plate 5 can be moved along the long rod 6, and with the cooperation of the external thread and the thread groove, the position of the abutment plate 5 can also be positioned.

[0029] The working principle of the utility model is:

[0030] When the hollow shaft is actually processed, the hollow shaft needs to be clamped. First, the movable support plate 2 is rotated to separate it from the long rod 6, and then the abutment plate 5 close to the movable support plate 2 is moved out from the long rod 6. At this time, the hollow shaft can be sleeved on the outside of the long rod 6, and when the hollow shaft is sleeved, the inner wall of the hollow shaft will contact the pulley 10, and the movable block 9 is squeezed by the pulley 10 to move the movable block 9 into the sleeve 4. The spring 13 in the sleeve 4 is in a contracted state under the squeezing of the movable block 9, and the pulley 10 will also be tightly abutted against the inside of the hollow shaft under the action of the elastic force of the spring 13. After the installation of the hollow shaft is completed, the abutment plate 5 is rotated again. The abutment plate 5 can move along the long rod 6 with the cooperation of the external thread and the thread groove. After the abutment plate 5 moves to abut against the hollow shaft, the clamping can be completed.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A positioning assembly for hollow shaft processing, characterized in that: The invention comprises a bottom plate (1) and two supporting plates (2), wherein the supporting plate (2) is arranged on the bottom plate (1), a long rod (6) is arranged between the two supporting plates (2), and two abutting plates (5) are arranged on the long rod (6); at least one set of sleeves (4) is arranged on the long rod (6) and is located between the two abutting plates (5), and the abutting plates (5), the sleeve (4) and the long rod (6) are located on the same axis, a moving block (9) is arranged in the sleeve (4), and one end away from the sleeve (4) penetrates and extends to the outside of the sleeve (4), a mounting groove (11) is arranged on the moving block (9), and a pulley (10) is arranged in the mounting groove (11), a connecting plate (12) is arranged on the moving block (9) and is located in the sleeve (4), and a spring (13) is arranged between the connecting plate (12) and the sleeve (4).

2. A positioning assembly for hollow shaft processing according to claim 1, characterized in that: The two support plates (2) are respectively fixed and hinged on the bottom plate (1).

3. The positioning assembly for hollow shaft processing according to claim 1, characterized in that: The number of the sleeves (4) in each group is not less than two, and not less than two of the sleeves (4) are equidistantly distributed on the long rod (6) in a circumferential manner.

4. The positioning assembly for hollow shaft processing according to claim 1, characterized in that: At least two grooves (7) are arranged in the abutment plate (5), an extension block (3) is arranged in the groove (7), and one end away from the abutment block penetrates and extends to the outside of the groove (7), and a limit plate (8) is arranged on the extension block (3), and the limit plate (8) is located inside the groove (7).

5. The positioning assembly for hollow shaft processing according to claim 1, characterized in that: A thread groove is provided on the long rod (6) at a position corresponding to the abutment plate (5), a through hole is provided on the abutment plate (5) for the long rod (6) to pass through, and an external thread is provided in the through hole, and the external thread is threadably connected to the thread groove.

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