CN218904126U

CN218904126U - Processing device for stamping special steel into cylindrical part

Info

Publication number: CN218904126U
Application number: CN202222956794.1U
Authority: CN
Inventors: 王春丽; 王俊生; 赵雄飞; 池瑞春; 宋艳; 杨文香; 刘俊发; 高存关; 乌云娜
Original assignee: Inner Mongolia First Machinery Group Corp
Current assignee: Inner Mongolia First Machinery Group Corp
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-04-25
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a processing device for stamping special steel into cylindrical parts, which comprises a clamp base, a supporting shaft, clamping jaws, a guide shaft, a top sleeve, a cam, a main shaft, a main push ring and a mandrel, wherein the clamping jaws are arranged on the clamp base; the lower end of the bottom baffle is fixedly connected with the center of the clamp base; the lower end of the mandrel is fixedly connected with a central hole of the clamp base, the upper end of the mandrel sequentially passes through the bottom baffle, the main push ring, the main shaft and the cam shaft and is fixedly connected with the upper dust-separating plate, the lower ends of the supporting shafts are uniformly distributed and fixed on the clamp base along the circumference, and the upper ends of the supporting shafts are fixedly connected with the upper dust-separating plate; the utility model can clamp and position once, clamp and cut the part once in place by adopting the three-dimensional laser cutting machine, reduce the dependence on the technical level of operators, reduce the use amount of the machining tool, reduce the deformation caused by repeated clamping, reduce the gap of welding grooves between welding parts, and facilitate the guarantee of the subsequent assembly and welding quality of the parts; while reducing thermal deformation of the component.

Description

Processing device for stamping special steel into cylindrical part

Technical Field

The utility model belongs to the field of thin-wall part machining, and particularly relates to a machining device for stamping special steel into a cylindrical part.

Background

The sleeve of the wheeled armored vehicle is made of special steel, a blank is rolled into a cylindrical part (or is punched into a special part through a design die) by adopting a plate rolling machine, the cylindrical part is required to be machined and manufactured after punching, the machining process is influenced by material performance, a bottom plane is pressed by a pressing plate, and the cylindrical part is machined in a mode of small cutting tool size and fast feeding by adopting a high-speed milling machine tool, so that vibration lines and deformation are easy to generate in the machining process of the thin-wall part, and the technical problem that the precision of the thin-wall part is insufficient and even scrapped is caused.

Therefore, the thin-wall sleeve part punched by special steel needs to be cut secondarily by a manual cutting gun, a scribing template is sleeved on the outer wall of the part, process allowance is reserved on the upper side and the lower side, a scribing pen is used for scribing along various hole edges on the scribing template, and then the manual cutting gun is used for cutting along the scribing edge. Cutting in this way has a number of drawbacks: firstly, designing and manufacturing a scribing template with errors; secondly, as the scribing sample plate is a sheet iron, uneven problems such as bulges and depressions exist outside the part, and the thickness of the scribing pen is uneven; thirdly, the manual cutting gun cutting has larger error due to the difference of skill level; fourthly, machining, clamping and deforming; fifth, because of the special material, the parts are deformed during transportation, and natural aging can occur during storage, so that the parts are deformed. Therefore, when the shape of the part is manually cut due to the above-described problems, there is a problem that the size of the part is greatly varied, and the part is not qualified.

Because the welding fixture is made of special materials, clamping deformation can exist during part machining, even parts cannot be machined at all positions to be machined due to abnormal shapes, assembly and cutting are needed during assembly, welding difficulty is increased, and quality cannot be guaranteed.

Disclosure of Invention

The utility model provides a processing device for stamping special steel into a cylindrical part, which aims to solve the technical problems that: solves the defects existing when the cylindrical part is cut for the second time.

In order to solve the technical problems, the utility model provides a processing device for stamping a cylindrical part from a special material, which is characterized in that: the clamp comprises a clamp base 1, a support shaft 2, a claw 5, a guide shaft 6, a top sleeve 8, a cam 12, a main shaft 13, a main push ring 14 and a mandrel 25; the lower end of the bottom baffle 15 is fixedly connected with the center of the clamp base 1; the lower ends of the mandrel 25 are fixedly connected with the central hole of the clamp base 1, the upper ends of the mandrel pass through the bottom baffle 15, the main push ring 14, the main shaft 13, the cam shaft 12 and the bearing spacer 11 in sequence and are fixedly connected with the upper dust-separating plate 10, the lower ends of the supporting shafts 2 are uniformly distributed and fixed on the clamp base 1 along the circumference, and the upper ends of the supporting shafts are fixedly connected with the upper dust-separating plate 10; the main push ring 14 is arranged on the bottom baffle 15, the upper end of the main push ring 14 is fixedly connected with the main shaft 13, and the upper end of the main shaft 13 is fixedly connected with the cam shaft 12; the upper part of the support shaft 2 is provided with a guide shaft 6 along the radial direction, a top sleeve 8 is positioned between the support shaft 2 and the cam shaft 12 and is connected with the inner end of the guide shaft, and the end part of the top sleeve is matched with a cam on the cam shaft 12; the claw 5 is positioned at the outer side of the supporting shaft 2 and is fixedly connected with the other end of the guide shaft; the blocking shaft (20) is fixed on the side wall of the supporting shaft (2) along the radial direction to support the parts.

The beneficial effects are that: the utility model can clamp and position once, clamp and cut the part once in place by adopting the three-dimensional laser cutting machine, reduce the dependence on the technical level of operators, reduce the use amount of the machining tool, reduce the deformation caused by repeated clamping, reduce the gap of welding grooves between welding parts, and facilitate the guarantee of the subsequent assembly and welding quality of the parts; meanwhile, the thermal deformation of the parts is reduced, the requirement of assembling and welding the parts can be met without secondary correction after the machining method is adopted, labor and time are saved, the efficiency is high, the speed is high, the production efficiency is greatly improved, and the product quality is improved.

Drawings

FIG. 1 is a diagram of a cylindrical part sleeved outside a supporting clamp for processing a real object;

FIG. 2 is a physical view of a support jig for a cylindrical part

FIG. 3 is a front view of FIG. 1

FIG. 4 isbase:Sub>A sectional view A-A of FIG. 3, i.e., an internal structural view of the cylinder part processing apparatus

FIG. 5 is a partial view of FIG. 4, i.e., an internal structural view of the cylinder part processing apparatus

FIG. 6 shows the structure of the process device after the upper dust-separating plate 10, the connecting plate 9 and the lower dust-separating plate 4 are hidden

FIG. 7 is a schematic view of a main push ring

FIG. 8 is a schematic of a spindle

FIG. 9 is a schematic view of a camshaft

FIG. 10 is a schematic view of a support shaft

FIG. 11 is a schematic view of a lower dust-separating orifice plate

FIG. 12 is a schematic view of a top cover

FIG. 13 is a schematic view of a retainer ring

FIG. 14 is a schematic view of a connection plate

FIG. 15 shows the engagement of the positioning bead 26 with the bottom stop 15

FIG. 16 is a sectional view B-B of FIG. 6 showing the mating relationship of the positioning bead 26, the main push ring 14, and the bottom stop 15

FIG. 17 is a schematic diagram of a wrench

Wherein: 1-a clamp base 2-a support shaft 3-a red copper protective sleeve 4-a lower dust-separating plate 5-a clamping jaw 6-a guide shaft 7-a retainer ring 8-a top sleeve 9-a connecting plate 10-an upper dust-separating plate 11-a bearing partition plate 12-a cam 13-a main shaft 14-a main push ring 15-a bottom baffle 16-a lower dust-separating shrinkage plate 17-a main push ring side post 18-a spanner head 19-a spanner handle 20-a blocking shaft 21-a short oil-free bushing 22-a light load spring 23-a spring post 24-a tension spring 25-a mandrel 26-a positioning bead 27-a thrust ball bearing 28-a long oil-free bushing 29-a medium oil-free bushing.

Detailed Description

To make the objects, contents and advantages of the present utility model more apparent, the following detailed description of the specific embodiments of the present utility model will be given.

The utility model provides a processing device for stamping a cylindrical part from special materials, which comprises a clamp base 1, a support shaft 2, a claw 5, a guide shaft 6, a top sleeve 8, a connecting plate 9, a cam 12, a main shaft 13, a main push ring 14 and a mandrel 25, wherein the main push ring is arranged on the clamp base;

the lower end of the bottom baffle 15 is fixedly connected with the center of the clamp base 1 through a screw; the center of the fixture base 1 is perforated to be used as a penetrating shaft 25, 120-degree uniform perforation towards the outer circumference is used as a penetrating 3 supporting shaft 2, and the perforation of the outermost circumference is used as auxiliary positioning base fixed connection on an equipment platform.

The mandrel 25 mainly drives the supporting clamp to rotate through the rotating motion of the base, and the supporting clamp rotates at a certain position, so that the robot can process parts conveniently.

The mandrel 25 passes through the central hole of the fixture base 1, and the lower end is connected with the base. The mandrel 25 sequentially passes through the bottom baffle 15, the main push ring 14, the main shaft 13, the cam shaft 12 and the bearing spacer 11 from bottom to top, and then is connected with the upper dust-separating plate 10, and the bottom baffle 15 is fixed outside the clamp base 1 by bolts and elastic pads.

A main push ring 14 is arranged on the bottom baffle 15 and fixed with the main push ring by bolts and elastic pads, a thrust ball bearing and a long oilless bushing 28 are arranged in the inner circle of the main push ring 14, a main shaft 13 is arranged on the upper end surface of the main push ring 14, and a lower dust-separation plate 4 and a lower dust-separation shrinkage plate 16 are sequentially arranged in the upper middle of the main shaft 13; the lower dust-separating plate 4 and the lower dust-separating shrinkage plate 16 are fixed by bolts and elastic gaskets;

the upper end face of the main shaft 13 is fixedly connected with the cam shaft 12, long oil-free seals 28 are arranged on the inner walls of the two ends of the cam shaft 12, the bearing spacer 11 is fixed with the upper end of the cam shaft 12 through bolts, and thrust ball bearings are arranged at the connection parts of the bearing spacer 11 and the cam shaft 12.

The supporting shaft 2 is connected with the fixture base 1 by a cylindrical pin on the supporting shaft 2. The supporting shaft 2 passes through the lower dust separation plate 4 and is fixedly connected with the bearing spacer 11 and the upper dust separation plate 10, and the upper and lower shaft check rings of the lower dust separation plate 4 are fixed with the supporting shaft 2. A red copper protective sleeve 3 is arranged below the shaft retainer ring below the lower dust-proof plate 4 and surrounds the supporting shaft 2.

The diameter of the lower dust-separating plate 4 depends on the inner diameter of the cylindrical part.

In order to facilitate the installation of the guide shaft 6 and the clamping jaw 5, the support shaft 2 is processed into a flat plate shape from the middle to the upper end from the middle part of the support shaft 2 (the position is determined according to the stress point after the part is cut and formed), and the upper end of the support shaft 2 is fixedly connected with the connecting plate 9, the upper dust separation plate 10 and the support shaft 2 by bolts and gaskets at the outer end of the bearing separation plate 11.

The blocking shaft 20 is positioned below the red copper protective sleeve 3, is inserted into a corresponding hole at the lower part of the supporting shaft 2 in the radial direction, and is fixed at the inner side of the supporting shaft 2 by bolts and elastic pads. The end face of the part is positioned so that the part abuts against the blocking shaft 20. The length of the blocking shaft 20 is determined according to the outer diameter of the cylindrical part.

A guide shaft 6 is mounted on the support shaft 2 above the lower dust-separating plate 4. The top sleeve 8 is arranged between the support shaft 2 and the cam shaft 12, the top sleeve 8, the light-load spring 22, the short oil-free bushing 21 and the clamping jaw 5 are connected together through the guide shaft 6, the clamping jaw 5 is provided with a hole and is placed on the outer side of the support shaft 2, the outer end of the guide shaft 6 penetrates through the support shaft 2 to be fixedly connected with the clamping jaw 5, the joint of the support shaft 2 and the guide shaft 6 is sealed by the oil-free seal 29 in order to achieve sealing, and the opening angle of the clamping jaw 5 is adjusted by the spring support posts 23 and the extension springs on the inner side and the outer side of the support shaft 2 in order to give certain pretightening force when supporting a workpiece. The internal supporting force of the claw 5 is adjusted by the supporting force of the light-load spring 22.

Because the tool is not automatically clamped, a thrust ball bearing is arranged on the inner side of the main push ring 14 below the main shaft 13, and the main push ring 4 and the thrust ball bearing are fixed by using screws and gaskets. The main push ring jamb 17 with a portion of the external thread is screwed into a small hole in the side wall of the main push ring 14. After the part is sleeved into the clamp, a special spanner (after the spanner head 18 and the spanner handle 19 are assembled), is inserted into the side column 17 of the main push ring, and can be rotated clockwise by about 94 degrees to fix the inner support, and the inner support is positioned by the small plane of the tip end of the cam 12 and the positioning bead 26; the clamp can be released by rotating the clamp anticlockwise by about 94 degrees, and the claw 5 is reset by the dead weight of the part or the resilience force of the extension spring 24.

The mandrel 25 connects the fixture base and the equipment platform base, a motor is arranged on the equipment platform base, and the fixture is driven to rotate by the motor, so that the aim of cutting the cylinder is fulfilled.

Parts such as a sheath, a clamp spring and the like used in the assembly process are assembled according to conditions.

Working process or working principle:

the principle of the inner supporting clamp for the round pipe is that the clockwise rotation motion of the cam 12 is converted into the linear motion of the clamping jaw 5, so that the three clamping jaws are uniformly supported, and the inner diameter of the round pipe is fixed and positioned in the range of travel.

The three-jaw chuck can be understood to be used in the internal support of the three-jaw chuck, and the difference is that the sleeve clamp belongs to a special clamp. The internal stay structure is a cam structure, the internal stay stroke is fixed, and the internal stay structure is the difference between the high and low points of the cam 12. The internal supporting force is the supporting force of the light-load spring 22 after the internal supporting stroke is in place. The inner diameter of the circular tube is fixed and positioned by means of the supporting force provided by the three groups of springs which are uniformly distributed. The internal bracing range and the internal bracing force of the sleeve clamp design are fixed, and the sleeve clamp is not suitable for other parts with larger size differences.

The fixture has the advantages of large number of moving parts and low positioning precision requirement. According to the motion form and the function analysis, all the rotating and linear motion parts are in small clearance fit, so that the sufficient positioning precision can be ensured, and the proper wrench rotating force can be provided.

According to the overall positioning precision requirement and the stress form analysis of the clamp, the fit between the mandrel 25 and the support shaft 2 and the clamp base 1 is high-precision small clearance fit or excessive fit.

All the external diameters and the matching holes of the press-in self-lubricating bushings in the clamp are in interference fit.

The blocking shafts 20 are all outward, and the verticality between the supporting shaft 2 and the clamp base 1 is less than or equal to 0.08mm/300mm.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. A processing device for stamping special steel into cylindrical parts is characterized in that: the clamping device comprises a clamp base, a supporting shaft, clamping jaws, a guide shaft, a top sleeve, a cam, a main shaft, a main push ring and a mandrel; the lower end of the bottom baffle is fixedly connected with the center of the clamp base; the lower end of the mandrel is fixedly connected with a central hole of the clamp base, the upper end of the mandrel sequentially passes through the bottom baffle, the main push ring, the main shaft and the cam shaft and is fixedly connected with the upper dust-separating plate, the lower ends of the supporting shafts are uniformly distributed and fixed on the clamp base along the circumference, and the upper ends of the supporting shafts are fixedly connected with the upper dust-separating plate; the main push ring is arranged on the bottom baffle, the upper end of the main push ring is fixedly connected with the main shaft, and the upper end of the main shaft is fixedly connected with the cam shaft; the upper part of the supporting shaft is provided with a guide shaft along the radial direction, the top sleeve is positioned between the supporting shaft and the cam shaft and is connected with the inner end of the guide shaft, and the end part of the top sleeve is matched with a cam on the cam shaft; the clamping jaw is positioned at the outer side of the supporting shaft and fixedly connected with the other end of the guide shaft; the blocking shaft is fixed on the side wall of the supporting shaft along the radial direction and supports the parts.

2. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: the fixture base is fixedly connected with an auxiliary positioning base on the equipment platform.

3. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: the middle parts of the main shaft and the supporting shaft are provided with a lower dust separation plate.

4. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: the joint of the support shaft and the guide shaft is sealed by oil-free sealing.

5. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: a light-load spring is arranged between the top sleeve and the guide shaft.

6. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: the side wall of the main push ring is fixed with a side column of the main push ring.

7. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: the main push ring is rotationally connected with the mandrel through a bearing.

8. The processing device for stamping special steel into cylindrical parts according to claim 1, wherein: all the rotating and linear motion parts are in small clearance fit.

9. A processing apparatus for stamping a special steel into a cylindrical part according to claim 3, wherein: the upper and lower parts of the lower dust-separating plate are fixed with the supporting shaft by a shaft retainer ring.

10. A processing apparatus for stamping a special steel into a cylindrical part according to claim 3, wherein: and a red copper protective sleeve is arranged below the lower dust-proof plate and surrounds the supporting shaft.