Auxiliary supporting and positioning device for cylindrical super-long workpiece of lathe

Abstract

The utility model relates to the field of workpiece positioning, in particular to a lathe cylindrical long workpiece auxiliary supporting and positioning device which comprises a supporting frame and a bearing assembly. The bearing assembly comprises an arc-shaped supporting plate, a fixing shaft, a first bearing and a second bearing. The bearing assembly is fixedly arranged at the top end of the supporting frame. The fixed shaft is horizontally fixed on the concave surface of the arc-shaped supporting plate; and the first bearing and the second bearing are sleeved on the fixed shaft in parallel. The bearing is arranged on the supporting device, the rollable bearing is arranged on the arc-shaped supporting plate, when the lathe cylindrical super-long workpiece is machined, the bearing carries out rolling supporting along with horizontal movement of the lathe cylindrical super-long workpiece, the friction force between the supporting face and the workpiece is reduced, and the surface of the workpiece is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the field of workpiece positioning, and in particular to an auxiliary positioning device for a cylindrical long workpiece of a lathe. Background Art

[0002] When a lathe processes a workpiece, it is usually necessary to place the workpiece on a support table. However, the support area of ​​the support table is limited, and the support effect is not good for extra-long workpieces. Workshop staff generally place one end of the workpiece on the support table and suspend the other end with a rope to provide auxiliary support and ensure good support and positioning functions. However, this method places high demands on the load-bearing capacity of the rope.

[0003] Although there are some non-suspension support and positioning devices in the prior art, such as CN219484892U, which discloses a support device for processing an extra-long workpiece, one end of the workpiece is placed on a support table for preliminary support, and a clamping assembly with a telescopic function is provided to increase the support area and adjust the extra-long workpiece to a horizontal state during processing. However, the support device of the patent has a complex structure, and when processing an extra-long cylindrical workpiece on a lathe, the extra-long cylindrical workpiece on the lathe needs to be moved horizontally. The workpiece is inconvenient to move in the support device of the patent, and the friction between the support surface and the workpiece is large, which makes the surface of the workpiece easy to be scratched. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary support and positioning device for a lathe cylindrical extra-long workpiece, so as to solve the technical problem that the friction between the supporting surface and the workpiece of the auxiliary support and positioning device for a lathe cylindrical extra-long workpiece in the prior art is large, resulting in easy scratches on the surface of the workpiece.

[0005] To solve the above technical problems, this application provides the following technical solutions:

[0006] An auxiliary support and positioning device for cylindrical extra-long workpieces of a lathe, comprising a support frame and a supporting assembly; the supporting assembly comprises an arc-shaped supporting plate, a fixed shaft, a first bearing and a second bearing; the supporting assembly is fixedly arranged on the top end of the support frame; the fixed shaft is horizontally fixed on the concave surface of the arc-shaped supporting plate, and the first bearing and the second bearing are parallelly mounted on the fixed shaft; the spacing between the first bearing and the second bearing is smaller than the diameter of the workpiece to be processed.

[0007] Furthermore, it also includes a bearing spacing adjustment device; the bearing spacing adjustment device includes a first locking nut, a second locking nut, a third locking nut, a fourth locking nut, a first mounting seat and a second mounting seat; the first bearing is mounted on the first mounting seat, the second bearing is mounted on the second mounting seat, the surface of the fixed shaft is provided with a threaded section, the first mounting seat and the second mounting seat are threadedly connected to the threaded section; the first locking nut and the second locking nut are respectively locked at both ends of the first mounting seat, and the third locking nut and the fourth locking nut are respectively locked at both ends of the second mounting seat.

[0008] Furthermore, the support frame includes a support platform and support legs fixed to the support platform, the supporting assembly is fixedly connected to the upper surface of the support platform, and the support legs are fixedly connected to the lower surface of the support platform.

[0009] Furthermore, three supporting legs are provided.

[0010] Furthermore, it also includes a height adjustment device, which is used to adjust the distance of the supporting assembly relative to the ground.

[0011] Furthermore, the height adjustment device includes a screw and an adjustment nut threadedly connected to the screw; the support platform is provided with a center hole, the size of the center hole is adapted to the diameter of the screw, and the screw passes through the center hole and is detachably fixedly connected to the arc-shaped support plate.

[0012] Furthermore, the adjusting nut includes a first adjusting nut and a second adjusting nut, the first adjusting nut is located on the upper surface of the support platform, and the second adjusting nut is located on the lower surface of the support platform.

[0013] Furthermore, it also includes an arc-shaped cover plate, and the arc-shaped cover plate and the arc-shaped supporting plate form an arc-shaped clamp.

[0014] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0015] 1. The present application sets a pair of rolling bearings on the arc-shaped support plate of the supporting assembly. When the lathe is processing an extra-long cylindrical workpiece, the pair of bearings provide rolling support for the horizontally moving extra-long cylindrical workpiece, thereby reducing the friction between the supporting surface and the workpiece and avoiding scratches on the workpiece surface.

[0016] 2. In the present application, two bearings are arranged on different bearing mounting seats, and the bearing mounting seats are threadedly connected to a fixed shaft provided with a threaded section. The distance between the two bearing mounting seats is adjusted to achieve the distance between the two bearings, so that the device can be better suitable for the positioning and support of cylindrical extra-long workpieces of lathes with different diameters.

[0017] 3. The present application provides an arc-shaped cover plate that forms an arc-shaped clamp with the arc-shaped support plate to perform circumferential positioning of the cylindrical workpiece to prevent the pipe from falling during processing and affecting the workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 A structural diagram of the auxiliary support and positioning device for a cylindrical super-long workpiece of a lathe provided in Example 1 of the utility model;

[0020] Figure 2 A structural diagram of the auxiliary support and positioning device for a cylindrical super-long workpiece of a lathe provided in Example 2 of the utility model;

[0021] Figure 3 for Figure 2 Magnified view of area A.

[0022] Icons: 1-support frame, 11-support platform, 12-support leg, 2-support assembly, 21-arc support plate, 22-fixed shaft, 23-first bearing, 24-second bearing, 3-bearing spacing adjustment device, 31-first locking nut, 32-second locking nut, 33-third locking nut, 34-fourth locking nut, 35-first mounting seat, 36-second mounting seat, 4-height adjustment device, 41-first adjusting nut, 42-second adjusting nut, 43-screw, 5-arc cover. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0024] Example 1

[0025] The present embodiment provides an auxiliary support device for cylindrical extra-long workpieces of a lathe, comprising a support frame 1 and a supporting assembly 2; the supporting assembly 2 comprises an arc-shaped supporting plate 21, a fixed shaft 22, a first bearing 23 and a second bearing 24; the supporting assembly 2 is fixedly arranged at the top end of the supporting leg 12; the fixed shaft 22 is horizontally fixed on the concave surface of the arc-shaped supporting plate 21, and the first bearing 23 and the second bearing 24 are parallelly mounted on the fixed shaft 22.

[0026] When processing an extra-long cylindrical workpiece on a lathe, the extra-long workpiece is placed on a support table 11 that plays a preliminary supporting role and a support device of the present application that plays an auxiliary supporting role for support and positioning. The circumferential surface of the cylindrical workpiece is supported on the circumferential surface of the first bearing 23 and the circumferential surface of the second bearing 24. As the processing proceeds, the extra-long cylindrical workpiece continuously moves horizontally so that the workpiece can reach the processing position for processing. Since the extra-long cylindrical workpiece is placed on two bearing surfaces, the bearings provide rolling support for the horizontally moving cylindrical workpiece, thereby reducing the friction between the support surface and the workpiece and avoiding scratches on the workpiece surface.

[0027] The support frame 1 includes a support platform 11 and support legs 12 . The supporting assembly 2 is fixedly connected to the upper surface of the support platform 11 , and the support legs 12 are fixedly connected to the lower surface of the support platform 11 .

[0028] The present embodiment has three supporting legs 12, and the bottoms of the three supporting legs 12 are welded in sequence through three steel pipes to form a triangle.

[0029] The supporting and positioning device of this embodiment further comprises a height adjusting device 4, and the height adjusting device 4 is used to adjust the distance of the supporting assembly 2 relative to the ground.

[0030] It is beneficial for the processing of extra-long workpieces to be in a horizontal state during the processing. Therefore, it is necessary to adjust the height of the supporting device that plays an auxiliary supporting role in this application so that the workpiece can be in a horizontal state when it is placed on the support table 11 that plays a preliminary supporting role and the supporting device that plays an auxiliary supporting role in this application for support positioning.

[0031] The height adjustment device 4 of this embodiment includes a screw rod 43 and an adjustment nut threadedly connected to the screw rod 43; the support platform 11 is provided with a center hole, the size of the hole is adapted to the diameter of the screw rod 43, and the screw rod 43 passes through the center hole and is fixedly connected to the arc support plate 21.

[0032] The adjusting nut includes a first adjusting nut 41 and a second adjusting nut 42 . The first adjusting nut 41 is located on the upper surface of the support platform 11 , and the second adjusting nut 42 is located on the lower surface of the support platform 11 .

[0033] When the height of the supporting assembly 2 needs to be adjusted, the screw rod 43 fixedly connected to the supporting assembly 2 is lifted up and down to a target position, and then the position of the screw rod 43 is locked by the first adjusting nut 41 and the second adjusting nut 42 .

[0034] During the processing and horizontal movement of the workpiece, the workpiece may be unstable and fall from the supporting position. The present embodiment also provides an arc cover plate 5 fixedly connected to the arc support plate 21 to form an arc clamp. The position of the cylindrical workpiece is relatively stable in the arc clamp to prevent the cylindrical workpiece from falling during the processing.

[0035] Example 2

[0036] The present embodiment provides an auxiliary support device for cylindrical extra-long workpieces of a lathe, comprising a support frame 1 and a supporting assembly 2; the supporting assembly 2 comprises an arc-shaped supporting plate 21, a fixed shaft 22, a first bearing 23 and a second bearing 24; the supporting assembly 2 is fixedly arranged at the top end of the supporting leg 12; the fixed shaft 22 is horizontally fixed on the concave surface of the arc-shaped supporting plate 21, and the first bearing 23 and the second bearing 24 are parallelly mounted on the fixed shaft 22.

[0037] The lathe cylindrical extra-long workpiece auxiliary support device of the present embodiment also includes a bearing spacing adjustment device 3, which includes a first locking bolt, a second locking bolt, a third locking bolt, a fourth locking bolt, a first mounting seat 35 and a second mounting seat 36. The first bearing 23 is sleeved on the first bearing 23 seat, and the second bearing 24 is sleeved on the second bearing 24 seat. A threaded section is provided on the surface of the fixed shaft 22. The first mounting seat 35 and the second mounting seat 36 are threadedly connected to the fixed shaft 22. The first locking nut 31 and the second locking nut 32 are respectively locked at both ends of the first mounting seat 35, and the third locking nut 33 and the fourth locking nut 34 are respectively locked at both ends of the second mounting seat 36.

[0038] In order to improve the application scope of the auxiliary support device for cylindrical extra-long workpieces of the lathe of the present application, so that it can be better applied to cylindrical extra-long workpieces of different diameters, the inventor has set a structure for adjusting the distance between the two bearings. Specifically, the two bearings are set on different bearing mounting seats, and the bearing mounting seats are threadedly connected to the fixed shaft 22 provided with a threaded section. The bearing mounting seat is rotated, and the bearing mounting seat can move on the screw 43. The distance between the two bearings is adjusted by adjusting the distance between the two bearing mounting seats, so that the distance between the two bearings can be adjusted according to the diameter of the cylindrical workpiece so that the bearings can better achieve rolling support. The present application also sets a locking device for the bearing mounting seat after adjustment, that is, the first locking nut 31 and the second locking nut 32 are respectively locked at the two ends of the first mounting seat 35, and the third locking nut 33 and the fourth locking nut 34 are respectively installed at the two ends of the second mounting seat 36. The axial position of the bearing mounting seat after position adjustment is locked by the locking nut to prevent the bearing mounting seat from rotating along the threaded section during the movement of the workpiece and affecting the effective support of the workpiece.

[0039] The support frame 1 of this embodiment includes a support platform 11 and support legs 12 . The supporting assembly 2 is fixedly connected to the upper surface of the support platform 11 , and the support legs 12 are fixedly connected to the lower surface of the support platform 11 .

[0040] The present embodiment has three supporting legs 12, and the bottoms of the three supporting legs 12 are welded in sequence through three steel pipes to form a triangle.

[0041] The supporting and positioning device of this embodiment further comprises a height adjusting device 4, and the height adjusting device 4 is used to adjust the distance of the supporting assembly 2 relative to the ground.

[0042] The height adjustment device 4 of this embodiment includes a screw rod 43 and an adjustment nut threadedly connected to the screw rod 43; the support platform 11 is provided with a center hole, the size of the hole is adapted to the diameter of the screw rod 43, and the screw rod 43 passes through the center hole and is fixedly connected to the arc support plate 21.

[0043] The adjusting nut includes a first adjusting nut 41 and a second adjusting nut 42 . The first adjusting nut 41 is located on the upper surface of the support platform 11 , and the second adjusting nut 42 is located on the lower surface of the support platform 11 .

[0044] During the processing and horizontal movement of the workpiece, the workpiece may be unstable and fall from the supporting position. The present embodiment also provides an arc cover plate 5 fixedly connected to the arc support plate 21 to form an arc clamp. The position of the cylindrical workpiece is relatively stable in the arc clamp to prevent the cylindrical workpiece from falling during the processing.

[0045] In summary, the lathe cylindrical extra-long workpiece auxiliary support device of the present application can be suitable for cylindrical extra-long workpieces of different diameters, can ensure that the workpiece is in a horizontal state, can reduce the friction between the support surface and the workpiece, and avoid scratches on the workpiece surface.

Claims

1. An auxiliary support and positioning device for a cylindrical super-long workpiece of a lathe, characterized in that: It includes a support frame and a supporting assembly; The supporting assembly includes an arc-shaped supporting plate, a fixed shaft, a first bearing and a second bearing; The supporting assembly is fixed on the top of the support frame; the fixed shaft is horizontally fixed on the concave surface of the arc-shaped support plate, and the first bearing and the second bearing are installed in parallel on the fixed shaft; the distance between the first bearing and the second bearing is smaller than the diameter of the workpiece to be processed.

2. The auxiliary support and positioning device for cylindrical super-long workpieces of a lathe according to claim 1, characterized in that: Also included is a bearing spacing adjustment device; The bearing spacing adjustment device comprises a first locking nut, a second locking nut, a third locking nut, a fourth locking nut, a first mounting seat and a second mounting seat; The first bearing is mounted on the first mounting seat, the second bearing is mounted on the second mounting seat, a threaded section is provided on the surface of the fixed shaft, and the first mounting seat and the second mounting seat are threadedly connected to the threaded section; The first locking nut and the second locking nut are respectively locked at two ends of the first mounting seat, and the third locking nut and the fourth locking nut are respectively locked at two ends of the second mounting seat.

3. The auxiliary support and positioning device for cylindrical super-long workpieces of a lathe according to any one of claims 1 to 2, characterized in that: The support frame includes a support platform and support legs fixed to the support platform, the supporting assembly is fixedly connected to the upper surface of the support platform, and the support legs are fixedly connected to the lower surface of the support platform.

4. The auxiliary support and positioning device for cylindrical super-long workpieces of a lathe according to claim 3, characterized in that: The supporting legs are provided with three.

5. The auxiliary support and positioning device for cylindrical extra-long workpieces of a lathe according to claim 3, characterized in that: It also includes a height adjustment device, which is used to adjust the distance of the supporting assembly relative to the ground.

6. The auxiliary support and positioning device for cylindrical super-long workpieces of a lathe according to claim 5, characterized in that: The height adjustment device includes a screw and an adjustment nut threadedly connected to the screw; the support platform is provided with a center hole, the size of the center hole is adapted to the diameter of the screw, and the screw passes through the center hole and is detachably fixedly connected to the arc-shaped support plate.

7. The auxiliary support and positioning device for cylindrical super-long workpieces of a lathe according to claim 6, characterized in that: The adjusting nut includes a first adjusting nut and a second adjusting nut, the first adjusting nut is located on the upper surface of the support platform, and the second adjusting nut is located on the lower surface of the support platform.

8. The auxiliary support and positioning device for cylindrical extra-long workpieces of a lathe according to claim 7, characterized in that: It also includes an arc-shaped cover plate, and the arc-shaped cover plate and the arc-shaped supporting plate form an arc-shaped clamp.

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