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CN-224223405-U - Lifting device of tapping machine

CN224223405UCN 224223405 UCN224223405 UCN 224223405UCN-224223405-U

Abstract

The utility model relates to the technical field of tapping machines, in particular to a tapping machine lifting device which comprises a base, wherein an upright post is fixedly connected to the left side of the top of the base, a lifting platform is sleeved in the middle of the outer wall of the upright post, and a supporting plate is fixedly connected to the top of the upright post. The right side of the inside of the supporting plate is provided with an auxiliary supporting component, the bottom of the auxiliary supporting component is provided with a screw rod, a threaded sleeve is sleeved below the outer wall of the screw rod, and the outer wall of the threaded sleeve is fixedly connected to the right side inner wall of the lifting platform. According to the utility model, lubricating oil can be injected into the contact surface of the bearing bush and the upright post through the structures such as the guide sleeve, the bearing bush and the like, so that the lifting platform can be lifted and lowered along the upright post in a sliding way, and meanwhile, the rotating shaft can be supported in an auxiliary way through the structures such as the single-row thrust ball bearing, the single-row radial ball bearing and the like, so that the abrasion of the rotating shaft is effectively reduced, and the smoothness and the stability of the device are improved.

Inventors

  • WANG LIE

Assignees

  • 苏州创力矿山设备有限公司

Dates

Publication Date
20260512
Application Date
20250604

Claims (7)

  1. 1. The tapping machine lifting device comprises a base (1) and is characterized in that a stand column (2) is fixedly connected to the left side of the top of the base (1), a lifting platform (3) is sleeved in the middle of the outer wall of the stand column (2), and a supporting plate (4) is fixedly connected to the top of the stand column (2); The right side of the support plate (4) is provided with an auxiliary support component (5), the bottom of the auxiliary support component (5) is provided with a screw rod (6), a screw sleeve (25) is sleeved below the outer wall of the screw rod (6), and the outer wall of the screw sleeve (25) is fixedly connected to the right side inner wall of the lifting platform (3).
  2. 2. The tapping machine lifting device according to claim 1, wherein a guide sleeve (21) is fixedly connected to the left inner wall of the lifting platform (3), bearing bushes (22) are fixedly connected to the upper side and the lower side of the inner wall of the guide sleeve (21), and the bearing bushes (22) are sleeved on the outer wall of the upright post (2) in a sliding mode.
  3. 3. The lifting device of the tapping machine according to claim 2, wherein oil injection holes (23) are formed in the left side and the lower left side of the top of the guide sleeve (21), oil lubrication grooves (24) are formed in the inner wall of the bearing bush (22), and the oil injection holes (23) are communicated with the oil lubrication grooves (24).
  4. 4. The lifting device of the tapping machine is characterized in that the auxiliary supporting component (5) comprises a bearing positioning sleeve (31), the outer wall of the bearing positioning sleeve (31) is fixedly connected to the right inner wall of the supporting plate (4), a rotating shaft (32) is inserted in the middle of the inner part of the bearing positioning sleeve (31), the bottom end of the rotating shaft (32) penetrates through the bottom of the bearing positioning sleeve (31) and is fixedly connected with the top of the screw rod (6), and a bearing end cover (35) is fixedly connected to the top of the bearing positioning sleeve (31).
  5. 5. The lifting device of the tapping machine, as set forth in claim 4, characterized in that a single-row thrust ball bearing (33) is sleeved below the outer wall of the rotating shaft (32), the single-row thrust ball bearing (33) is arranged below the inside of the bearing positioning sleeve (31), two single-row radial ball bearings (34) are sleeved above the outer wall of the rotating shaft (32), and the single-row radial ball bearings (34) are arranged above the inside of the rotating shaft (32).
  6. 6. The lifting device of the tapping machine according to claim 5, wherein the top end of the rotating shaft (32) penetrates through the bearing end cover (35) and is sleeved with a hand wheel (36), a clamping piece (37) is fixedly connected above the outer wall of the rotating shaft (32), and a clamping groove (38) corresponding to the clamping piece (37) is formed in the inner wall of the hand wheel (36).
  7. 7. The lifting device of the tapping machine according to claim 6, wherein a gasket (39) is arranged in the middle of the upper part of the hand wheel (36), a bolt (40) is inserted above the gasket (39), and a screw hole corresponding to the bolt (40) is formed in the inner wall of the top of the rotating shaft (32).

Description

Lifting device of tapping machine Technical Field The utility model relates to the technical field of tapping machines, in particular to a lifting device of a tapping machine. Background The tapping machine is an important device in the field of metal processing and machine manufacturing, and can conveniently and rapidly tap the internal thread on the basis of finishing the drilling of the internal thread bottom hole in the previous working procedure. Although the universal pneumatic tapping machine is convenient to use and operate, the adjustment range of the universal pneumatic tapping machine in the height direction is quite limited, so that a workpiece with a height exceeding the working range cannot be used for tapping. The prior device mainly drives a lifting platform and a tapping assembly to move up and down through a screw rod assembly, the prior art is more similar to a spindle box lifting device of a vertical tapping machine tool, a structure with the publication number CN203592345U comprises a lifting support fixedly connected with a spindle box, the lifting support is in sliding connection with a rack through a sliding rail, and a driving mechanism for driving the lifting support to slide along the sliding rail is arranged between the lifting support and the sliding rail. The headstock lifting device of the vertical tapping machine realizes the height adjustment of the headstock, is suitable for the processing conditions of workpieces with various sizes and shapes, improves the universality of the tapping machine, but the device still has a place which can be optimized. The prior device mainly utilizes a sliding rail component to limit and support the lifting platform to slide, so that part of the device is difficult to inject lubricating oil into a sliding contact surface, the part of the lifting platform is difficult to lift along the upright post in a sliding way, and meanwhile, the part of the device mainly adopts a screw rod to drive the lifting platform to lift, so that the screw rod component is easy to bear and wear in a rotating process, the part of the screw rod component is difficult to stably rotate, and the working efficiency and the practicability of the device are reduced. Disclosure of utility model The utility model aims to provide a tapping machine lifting device, which aims to solve the problems that in the prior art, the sliding rail component is mainly utilized to limit and support the lifting platform to slide, so that part of devices are difficult to inject lubricating oil into sliding contact surfaces, and therefore part of lifting platforms are difficult to lift along a stand column smoothly, and meanwhile, part of devices mainly adopt screw rods to drive the lifting platform to lift, so that the screw rod component is easy to be stressed and worn in the rotating process, and therefore, part of screw rod components are difficult to rotate stably. In order to achieve the purpose, the utility model provides the technical scheme that the lifting device of the tapping machine comprises a base, wherein the left side of the top of the base is fixedly connected with a stand column, the middle part of the outer wall of the stand column is sleeved with a lifting platform, and the top of the stand column is fixedly connected with a supporting plate. The right side of the inside of the supporting plate is provided with an auxiliary supporting component, the bottom of the auxiliary supporting component is provided with a screw rod, a threaded sleeve is sleeved below the outer wall of the screw rod, and the outer wall of the threaded sleeve is fixedly connected to the right side inner wall of the lifting platform. Preferably, the left inner wall of the lifting platform is fixedly connected with a guide sleeve, the upper side and the lower side of the inner wall of the guide sleeve are fixedly connected with bearing bushes, and the bearing bushes are sleeved on the outer wall of the upright post in a sliding manner. Preferably, oil filling holes are formed in the left side and the lower left side of the top of the guide sleeve, a lubricating oil groove is formed in the inner wall of the bearing bush, and the oil filling holes are communicated with the lubricating oil groove. Preferably, the auxiliary support assembly comprises a bearing positioning sleeve, the outer wall of the bearing positioning sleeve is fixedly connected with the right inner wall of the supporting plate, a rotating shaft is inserted in the middle of the inner part of the bearing positioning sleeve, and the bottom end of the rotating shaft penetrates through the bottom of the bearing positioning sleeve and is fixedly connected with the top of the screw rod. Preferably, a single-row thrust ball bearing is sleeved below the outer wall of the rotating shaft, the single-row thrust ball bearing is arranged below the inside of the bearing positioning sleeve, two single-row radial ball bearings are sleeved above the oute