CN218798861U

CN218798861U - Combined type swage block for reaming ultra-large cylinder

Info

Publication number: CN218798861U
Application number: CN202223174208.4U
Authority: CN
Inventors: 段来山; 蒲徐明; 田子敬; 张广森; 白玉; 戚波; 赵艳峰
Original assignee: Wuhan Heavy Industry Casting and Forging Co Ltd
Current assignee: Wuhan Heavy Industry Casting and Forging Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-07
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a combination formula swage block is used in reaming of extra-large-scale barrel has solved the flat stock flexibility adaptability that prior art exists poor, and the size that exists when being used for large-scale barrel forging reaming to operate mismatches and leads to the unsatisfied problem of processing requirement of product overall dimension discrepancy. The technical scheme includes that the anvil comprises an anvil block, a flat anvil arranged on the bottom surface of the anvil block and an anvil block, wherein a through type groove is formed in the width direction of the anvil block, and the type groove is inserted outside the flat anvil block along the length direction of the flat anvil block. The utility model discloses the structure is very simple, low in production cost, easily dismouting, satisfy the reaming operation requirement of large-scale barrel forging, improve barrel forging size machining precision, adapt to in a flexible way well.

Description

Combined type anvil for reaming ultra-large barrel

Technical Field

The utility model relates to a large-scale barrel forging is swage block for reaming.

Background

Generally, the height and the outer diameter of a large-sized cylinder body both exceed 3000mm, the large-sized cylinder body is usually made of high alloy steel, and has the characteristics of large size, thin wall thickness (less than 150 mm) and large forging difficulty.

The large-scale barrel forging is upset, drawn out, blanked and punched when forged, then use plug and flat anvil to carry out reaming, in the reaming process, when reaming blank length exceeded hammering block width W, because last anvil is to section of thick bamboo wall surface and plug to section of thick bamboo wall internal surface's contact surface width and scope nonconformity, it is inhomogeneous to lead to section of thick bamboo wall to walk the material in length direction, the section of thick bamboo wall outside is walked the material slowly, section of thick bamboo wall inboard is walked the material fast, thereby lead to the barrel at two terminal surface diameters of reaming in-process, the central diameter is little to cause the problem that there is the horn mouth in two terminal surfaces of barrel, cause section of thick bamboo wall each part size inhomogeneous, thereby influence the unsatisfied technological requirement of barrel wall overall dimension, lead to the unsatisfied processing requirement of product overall dimension discrepancy.

Therefore, a special reaming tool needs to be designed, the problem that the lengths of contact surfaces of the flat anvil and the core rod with the cylinder wall are inconsistent in the reaming process of the cylinder wall is solved, the material feeding of the cylinder wall is uniform in the reaming process of the cylinder body, the sizes of all parts of the cylinder body are consistent, and finally the size of a cylinder forging piece meets the machining requirement.

Disclosure of Invention

The utility model aims at solving the technical problem, provide a very large-scale barrel combination formula swage block for reaming that the structure is very simple, low in production cost, easy dismouting, satisfy the reaming operation requirement of large-scale barrel forging, improve barrel forging size machining precision, adapt to in a flexible way.

The technical scheme includes that the anvil comprises an anvil block, a flat anvil block and a shaped anvil, wherein the flat anvil block is arranged on the bottom surface of the anvil block, a through type groove is formed in the width direction of the shaped anvil block, and the type groove is inserted outside the flat anvil block along the length direction of the flat anvil block.

The profiled groove and the flat anvil are in interference fit.

The anvil is provided with a bolt positioning hole, the flat anvil is provided with a bolt positioning groove, and the fixing bolt penetrates through the bolt positioning hole to be in threaded connection with the bolt positioning groove.

And a chamfer is arranged at the bottom of the groove.

The bottom surface of the swage block is provided with a chamfer.

Has the advantages that:

1) The special anvil block and anvil block do not need to be manufactured according to the size of a large-sized cylinder body, the original structure is utilized, the anvil block with larger size is directly sleeved on the flat anvil block, the original flat anvil block is inserted into the groove of the anvil block as an inner component, the connection between the anvil block and the flat anvil block is rapidly completed, a 90-degree included angle is formed between the anvil block and the flat anvil block, the length size of the anvil block is used for replacing the width size of the flat anvil block to forge, the contact area is increased, and meanwhile, the problems that the cost is high, the installation is difficult and the efficiency is low when the whole set of special chambering-expanding anvil block is manufactured again are solved. The shape of the flat groove in the anvil is easy to process, the complex dovetail part processing of the traditional anvil is avoided, and the investment cost is greatly saved.

2) The flexibility is good, and original flat anvil can be applicable to the barrel reaming operation of corresponding size, when needs are to large-scale barrel reaming, then correspond the corresponding size of cartridge swage block can, need not be to reforming transform original structure, the operating efficiency is high, the machining precision is good, has increased the barrel size that is suitable for greatly, has guaranteed that barrel forging size satisfies the processing requirement.

3) The rapid plug-in mounting between the flat anvil and the swage block is realized by the aid of the through type grooves, the bolt positioning holes formed in the swage block and the bolt positioning grooves formed in the flat anvil block are matched with the fixing bolts to finish rapid connection, and the problems that a dovetail groove and a fixing panel are used for mounting and dismounting when a traditional anvil is mounted and dismounted, labor intensity is high, and mounting efficiency is low are solved.

Drawings

Figure 1 is a front view of the structure of the utility model,

figure 2 is a left side view of the structure of the utility model,

figure 3 is a front view of the installation of the utility model,

figure 4 is a left side view of the installation of the utility model,

figure 5 is a front view of the utility model used for installation,

fig. 6 is a left side view of the utility model.

Wherein, the device comprises 1-bolt positioning holes, 2-shaped grooves, 3-shaped anvils, 4-anvil blocks, 5-flat anvils, 6-fixing bolts, 7-reaming core rods, 8-cylinder blanks and 9-bolt positioning grooves.

Detailed Description

The invention will be further explained with reference to the drawings:

referring to fig. 1-6, the anvil block 4 of the present invention and the flat anvil 5 disposed on the bottom surface of the drill seat further comprise a swage block 3, and the bottom surface of the swage block is provided with a chamfer; a through-going groove 2 is formed in the width direction of the swage block 3, and a chamfer is arranged at the bottom of the groove; the profiled groove 2 is inserted outside the flat anvil 5 along the length direction of the flat anvil 3, and the profiled groove 2 and the flat anvil 5 keep interference fit.

The anvil 5 is provided with a bolt positioning hole 1, the flat anvil 5 is provided with a bolt positioning groove, and the fixing bolt 6 penetrates through the bolt positioning hole 1 to be in threaded connection with the bolt positioning groove 9.

The operation method of the present invention is described below by taking 1400 flat anvil as an example:

in the reaming process after the punching of the cylinder blank 8, when the length of the cylinder blank 8 exceeds 1400 of the flat anvil 5 (forging length limit), the problem of flare due to uneven material feeding caused by inconsistent lengths of contact surfaces of the flat anvil 5, the reaming core rod 7 and the cylinder blank 8 can occur when the flat anvil 5 is continuously used for reaming and drawing.

At the moment, the profiled groove 2 of the swage block 3 is correspondingly inserted outside the flat anvil 5 along the length direction of the flat anvil 5 to form a 90-degree included angle between the profiled groove and the flat anvil 5, then the fixing bolt 6 penetrates through the bolt positioning hole 1 to be in threaded connection with the bolt positioning groove 9, so that the swage block 3 meeting the reaming size is installed on the flat anvil 5, the anvil 4 is normally connected with a press, and can be matched with the reaming core rod 8 to ream and stretch the barrel blank 8, and the stress length of the barrel blank 8 on the inner side and the outer side of the barrel wall can be kept consistent due to the fact that the size of the swage block 3 is matched with the length of the barrel blank 8, so that the material walking on the inner side and the outer side of the barrel wall in the reaming and stretching process of the barrel blank 8 is kept consistent, and further, the size of each part of the barrel after reaming is even.

When the swage block 3 needs to be dismounted, the fixing bolt 6 is dismounted, and then the swage block 3 is withdrawn along the length direction of the flat anvil 5, so that the connection between the swage block and the flat anvil can be released, and the method is very convenient and flexibly suitable for reaming, drawing and forging of all cylindrical pieces with the outer diameter of 1000mm-4000 mm.

Claims

1. The combined type anvil for reaming the ultra-large cylinder comprises an anvil block and a flat anvil arranged on the bottom surface of the anvil block, and is characterized by further comprising the anvil block, wherein a through type groove is formed in the width direction of the anvil block, and the type groove is inserted outside the flat anvil block along the length direction of the flat anvil block.

2. The combined type anvil for reaming of ultra-large type cylinder according to claim 1, wherein the groove is in interference fit with the flat anvil.

3. The combined type anvil for reaming a very large cylinder according to claim 1 or 2, wherein the anvil is provided with a bolt positioning hole, the flat anvil is provided with a bolt positioning slot, and a fixing bolt passes through the bolt positioning hole and is in threaded connection with the bolt positioning slot.

4. The combined anvil for reaming of ultra-large type cylinder according to claim 1 or 2, wherein the bottom of the groove is provided with a chamfer.

5. The combined type swage for reaming the ultra-large cylinder body according to claim 1 or 2, wherein the bottom surface of the swage is provided with a chamfer.