Hub spinning machine

Abstract

A hub spinning machine is composed of a machine table and an upper cover, stand column units are arranged on the three side edges of the machine table respectively, stand column frames are formed through upper and lower connecting plates and front and rear panels, and each frame is provided with a lifting sliding rail and a fixing frame. The fixed frame is controlled by a lifting hydraulic oil cylinder of the upper cover to move up and down, and the spinning frame carried on the fixed frame is controlled by a spinning sliding rail to move front and back so as to adapt to spindle spinning. An abutting rotary seat is arranged below the middle of the upper cover and used for abutting against the workpiece, and one side of the machine table is open so that the workpiece can be placed and taken out conveniently. By means of the design, the efficiency problem of a traditional four-spinning-roller spinning machine in the workpiece placing process is avoided, the equipment height is reduced, the feeding and discharging efficiency is improved, and the high-precision machining quality is ensured.

Description

Technical Field

[0001] The utility model relates to a spinning machine, in particular to a hub spinning machine, and belongs to the technical field of IPC classification No. B21D. Background Art

[0002] Wheel hub spinning is an efficient wheel hub processing technology that can rotate the wheel hub blank and process it along the axial direction to make it into a wheel hub. Currently, there are wheel hub spinning machines developed using the spinning principle.

[0003] At present, wheel spinning machines can be divided into single-wheel, double-wheel, triple-wheel, quad-wheel and ball-bearing spinning machines according to the number of wheels. Among them, the wheel spinning machine with four wheels has more balanced pressure on the workpiece during processing and higher precision of finished products, which is superior to the wheel spinning machines with other numbers of wheels.

[0004] For example, Chinese patent publication number CN116037749A discloses a large CNC vertical four-roller spinning machine, which uses high columns fixed around the bed assembly, axial guide rails are installed on the opposite walls between the two columns, axial slides are installed between the axial guide rails, radial drive cylinders are installed in the slides, and a roller is installed in each of the four directions. This four-roller spinning machine has been improved a lot compared to other four-roller spinning machines, but there are still major problems:

[0005] 1. The four-wheel spinning machine occupies a large area and is high, making it difficult to transport and enter and exit the factory.

[0006] 2. A rotary wheel is installed in each of the four directions, and there is no extra space on the side of the spindle for placing the workpiece. Therefore, the rotary wheel needs to rise to the top of the column, with a long stroke, high rise, long time and low efficiency. Summary of the invention

[0007] The purpose of the utility model is to solve the above-mentioned problems and to provide a hub spinning machine which is small in size and convenient for placing workpieces even if four spinning wheels are set at a low height.

[0008] The technical solution to the problem to be solved by the utility model is as follows:

[0009] The wheel hub spinning machine is characterized in that it comprises a machine platform and an upper cover, and a column unit is respectively installed on three sides of the machine platform between the machine platform and the upper cover, so that the machine platform and the upper cover are fixedly integrated into one;

[0010] Among them, each column unit is composed of an upper and lower connecting plate, and a front and rear panel arranged between the upper and lower connecting plates to form a column frame. A lifting slide rail is provided on each column frame, and a fixed frame is installed on the lifting slide rail. The fixed frame is controlled by a lifting hydraulic cylinder arranged on the upper cover to slide up and down on the lifting slide rail to achieve up and down lifting; a spinning frame is placed on the fixed frame, and the spinning frame is controlled by a spinning hydraulic cylinder on the fixed frame through the spinning slide rail to expose the spinning box at the front end of the spinning frame, and the front and rear displacement of the spinning frame is controlled corresponding to the spindle where the workpiece is placed; a pressing rotating seat for pressing the workpiece is suspended at the position corresponding to the spindle in the middle and lower part of the upper cover, and one side between the machine table and the upper cover is left open for the workpiece to be placed on or removed from the spindle.

[0011] Preferably, reinforcing grids are provided between the two sides of the front panel and the two sides of the rear panel to provide lateral support for the column frame.

[0012] Preferably, the lifting rails are provided on both sides of the front and rear edges of the middle frame of the column frame, and sliders are placed on the lifting rails; the sliders on the lifting rails on the edges of the frame on the same side in the middle of the column frame assist each other in fixing a lifting mounting plate, and a longitudinal splint is provided in the middle of the frame and fixedly combined with the lifting mounting plate to form the spinning frame.

[0013] Preferably, pillow blocks are provided at the bottom and both side walls of the fixed frame, the spinning slide rail is matched on the pillow blocks, and the other side of the spinning slide rail is fixed on the spinning frame; the spinning hydraulic cylinder is mounted in the spinning frame, and its output push rod acts on a reaction plate fixed to the fixed frame on one side, and the hydraulic cylinder drives the spinning box to move forward and backward through the reaction plate when the hydraulic cylinder is operating.

[0014] Preferably, the spinning box comprises a box body, a spinning shaft is placed in the box body, one end of the spinning shaft is exposed from the box body and is equipped with a spinning wheel; a plurality of thrust roller bearings are sleeved on the spinning shaft in the box body.

[0015] The beneficial effects of the utility model are as follows:

[0016] Compared with the prior art, the utility model fixes and integrates the machine table and the upper cover into one, and the column units are respectively installed on the three sides of the machine table, and the remaining side is open for the placement and removal of workpieces, thereby eliminating the problem of low efficiency of the four-wheel spinning machine in placing the workpiece and raising the spinning station, and further reduces the overall height, improves the handling efficiency of loading and unloading materials, and at the same time ensures high-precision processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0020] Figure 3 It is a structural schematic diagram of the column unit;

[0021] Figure 4 yes Figure 3 Schematic diagram of the structural decomposition. DETAILED DESCRIPTION

[0022] The following will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, that is, a large number of specific details are given to provide a more thorough understanding of the present invention. However, for those skilled in the art, the present invention can be implemented without one or more of these details. In these examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0023] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. Therefore, they are only used as examples and cannot be used to limit the scope of protection of the present invention.

[0024] In addition, it should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0025] See also Figures 1 to 4 The hub spinning machine mainly comprises a machine table 1 and an upper cover 2. A column unit 3 is respectively installed on the three sides of the machine table 1. Such a design can make the machine table 1 and the upper cover 2 tightly fixed into a whole by welding or screwing.

[0026] Each column unit 3 is composed of an upper connecting plate 31 and a lower connecting plate 32, a front panel 33 and a rear panel 34 arranged between the upper connecting plate 31 and the lower connecting plate 32 to form a column frame, and a lifting slide rail 35 is arranged on each column frame, and a fixed frame 4 is installed on the lifting slide rail 35. The fixed frame 4 is controlled by a lifting hydraulic cylinder A arranged on the upper cover 2 to slide up and down on the lifting slide rail 35 to achieve up and down lifting; a spinning frame 5 is placed on the fixed frame 4, and the spinning frame 5 The spinning box 53 exposed at the front end of the spinning frame 5 is controlled by the spinning hydraulic cylinder 52 on the fixed frame 4 through the spinning slide rail 51, and the front and rear displacement of the spinning frame 5 is controlled corresponding to the spindle 6 on which the workpiece is placed. The spindle 6 is indirectly driven by the spindle motor 61; a pressing rotary seat 71 for pressing against the workpiece is suspended at a position corresponding to the spindle 6 in the middle and lower part of the upper cover 2, and the pressing rotary seat 71 is powered by the pressing hydraulic cylinder 7. One side between the machine table 1 and the upper cover 2 is left open for the workpiece to be placed on or removed from the spindle 6.

[0027] During implementation, the workpiece to be processed can be placed on the spindle 6 from the open side between the machine table 1 and the upper cover 2, which reduces the lifting time and improves production efficiency. By installing column units on the three sides of the machine table, the machine table 1 and the upper cover 2 are fixed as a whole, and the structure of the entire equipment is firm, ensuring that it can withstand various forces generated during the spinning process. In terms of space utilization, the overall height is effectively reduced, the center of gravity of the entire equipment is lowered, and the machine table is more stable.

[0028] Furthermore, as an improvement to the present invention, a plurality of reinforcing grid plates 36 are provided between the two sides of the front panel 33 and the two sides of the rear panel 34 to provide lateral support for the column frame.

[0029] In this embodiment, the reinforcing grid plate 36 enhances the lateral rigidity of the column frame, prevents deformation due to force during operation, ensures the displacement accuracy of the spinning frame 5 and thus ensures the processing accuracy. In addition, the provision of several reinforcing grid plates 36 can effectively disperse the pressure, extend the service life of the equipment, and improve the safety of the equipment. Moreover, the reinforcing grid plates 36 are simple to manufacture, making the whole machine manufacturing and installation more convenient.

[0030] Furthermore, as an improvement to the present invention, the lifting rails 35 are provided on both sides of the front and rear edges of the middle frame of the column frame, and sliders 351 are placed on the lifting rails 35; the sliders 351 on the lifting rails 35 on the edges of the frame on the same side in the middle of the column frame assist each other in fixing a lifting mounting plate 352, and a longitudinal splint 353 is provided in the middle of the frame and fixedly combined with the lifting mounting plate 352 to form the spinning frame.

[0031] In this embodiment, the longitudinal clamping plate 353 is arranged in the middle of the frame, wherein the longitudinal clamping plate located at the top is provided with a through hole, and a guide sleeve 354 is sleeved on the through hole for the push rod of the lifting hydraulic cylinder A to pass through. The lifting mounting plate 352 can be used to fix the spinning box 53 and the spinning hydraulic cylinder 52.

[0032] Continue reading Figure 4 Further, as an improvement to the present invention, pillow blocks 355 are provided at the bottom and both side walls of the fixed frame, a spinning slide rail 51 is matched on the pillow blocks 355, and the other side of the spinning slide rail 51 is fixed on the spinning frame 5; the spinning hydraulic cylinder 51 is arranged in the spinning frame 5, and its output push rod acts on a reaction plate 356 fixed to the fixed frame 5 on one side, so that the hydraulic cylinder 51 drives the spinning box 35 to move forward and backward through the reaction plate 35 when the spinning hydraulic cylinder 51 is working.

[0033] In this embodiment, the fixed frame 4 constitutes a Z-axis that moves up and down, and the spinning frame 5 constitutes an X-axis that moves back and forth with the main shaft 6 as the center. The two axial directions are respectively controlled by the lifting hydraulic cylinder A and the spinning hydraulic cylinder 51, so that the movement range of the spinning box 35 can be controlled within the range of the two axes.

[0034] Further, as an improvement to the present invention, the spinning box 35 comprises a box body, in which a spinning shaft is placed, and one end of the spinning shaft is exposed from the box body and is equipped with a spinning wheel; a plurality of thrust roller bearings are sleeved on the spinning shaft in the box body.

[0035] In this embodiment, the selection of the thrust roller bearing enables the spinning box to have a higher load-bearing capacity during spinning, and it also has high rigidity, is suitable for high-speed operation, and has a long service life.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. Wheel hub spinning machine, characterized by: It includes a machine platform and an upper cover, and a column unit is respectively installed on three sides of the machine platform between the machine platform and the upper cover, so that the machine platform and the upper cover are fixedly integrated into one; Among them, each column unit is composed of an upper and lower connecting plate, a front panel and a rear panel arranged between the upper and lower connecting plates to form a column frame, a lifting slide rail is provided on each column frame, a fixed frame is installed on the lifting slide rail, and the fixed frame is controlled by a lifting hydraulic cylinder arranged on the upper cover to slide up and down on the lifting slide rail to achieve up and down lifting; a spinning frame is placed on the fixed frame, and the spinning frame is controlled by the spinning hydraulic cylinder on the fixed frame through the spinning slide rail to expose the spinning box at the front end of the spinning frame, and the front and rear displacement of the spinning frame is controlled corresponding to the spindle where the workpiece is placed; a pressing rotating seat for pressing the workpiece is suspended at the position corresponding to the spindle in the middle and lower part of the upper cover, and the remaining one side between the machine table and the upper cover is open for the workpiece to be placed on or removed from the spindle.

2. The wheel hub spinning machine according to claim 1, characterized in that: Reinforced grid plates are provided between the two sides of the front panel and the two sides of the rear panel to provide lateral support for the column frame.

3. The wheel hub spinning machine according to claim 1, characterized in that: The lifting rails are provided on both sides of the front and rear edges of the middle frame of the column frame, and sliders are placed on the lifting rails; the sliders on the lifting rails on the edges of the frame on the same side in the middle of the column frame assist each other in fixing a lifting mounting plate, and a longitudinal splint is provided in the middle of the frame and fixedly combined with the lifting mounting plate to form the spinning frame.

4. The wheel hub spinning machine according to claim 1 or 3, characterized in that: Pillow blocks are provided at the bottom and both side walls of the fixed frame, the spinning slide rails are matched on the pillow blocks, and the other side of the spinning slide rails is fixed on the spinning frame; the spinning hydraulic cylinder is mounted in the spinning frame, and its output push rod acts on a reaction plate fixed to the fixed frame on one side. When the reaction plate is used to operate the hydraulic cylinder, the hydraulic cylinder drives the spinning box to move forward and backward.

5. The wheel hub spinning machine according to claim 1, characterized in that: The spinning box comprises a box body, a spinning shaft is placed in the box body, one end of the spinning shaft is exposed from the box body and a spinning wheel is installed; a plurality of thrust roller bearing shafts are sleeved on the spinning shaft in the box body.

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