CN210451832U

CN210451832U - Mandrel releasing tool

Info

Publication number: CN210451832U
Application number: CN201921156954.6U
Authority: CN
Inventors: 马跃华; 刘楠
Original assignee: Youyan Rare Earth Rongcheng Co Ltd
Current assignee: Youyan Rare Earth Rongcheng Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-05
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to the technical field of neodymium iron boron hollow cylindrical forming, in particular to a mandrel releasing tool, which is characterized in that the mandrel releasing tool comprises an upper positioning plate, a middle fixing plate, a lower positioning plate, a mandrel fixing block, a positioning mandrel, a mandrel fixing plectrum, a mandrel releasing push rod, a baffle and a reset spring, wherein the upper positioning plate, the middle fixing plate and the lower positioning plate are connected with each other in the vertical direction, the middle part of the lower end surface of the lower positioning plate is provided with a strip-shaped groove with openings at two ends, the mandrel fixing block is arranged in the strip-shaped groove, the upper end of the mandrel fixing block is provided with a mandrel releasing push rod, the upper end of the mandrel releasing push rod sequentially passes through the lower positioning plate, the middle fixing plate and the upper positioning plate to be connected with the baffle, the reset spring is sleeved on the mandrel releasing push rod extending out of the, has the advantages of simple structure, convenient use, good release effect, increased working efficiency and the like.

Description

Mandrel releasing tool

Technical Field

The utility model belongs to the technical field of the hollow cylindrical shaping technique of neodymium iron boron and specifically relates to a simple structure, convenient to use, release effectual, increase work efficiency's plug release frock.

Background

As is known, neodymium iron boron is simply a magnet, and is different from the magnet seen in our ordinary times, the magnet has excellent magnetic performance and is called as 'King', the neodymium iron boron contains a large amount of rare earth elements of neodymium, iron and boron, the characteristics of the magnet are hard and brittle, the surface of the magnet is very easy to oxidize and corrode, the neodymium iron boron needs to be subjected to surface coating treatment, surface chemical passivation is one of good solutions, the neodymium iron boron is used as a rare earth permanent magnet material and has extremely high magnetic energy and coercive force, and meanwhile, the advantage of high energy density enables the neodymium iron boron permanent magnet material to be widely applied in modern industry and electronic technology, so that the miniaturization, light weight and thinning of instruments, electro-acoustic motors, magnetic separation and magnetization and other equipment become possible. The Nd-Fe-B alloy has the advantages of high cost performance and good mechanical property.

At present, the hole is generally drawn on cubic product to the shaping mode of current hollow cylinder type product, takes out cylindrical hollow product, and this kind of processing mode is long, the inefficiency through the shaping of cubic product, the process of drawing out of round hole, drawing out of cylinder product, and the waste material after drawing out the hole still need broken the utilization again like this, has caused to produce originally low not enough, and the hollow cylinder type product of current preparation generally all needs the plug structure, but hardly guarantees the central point of plug and puts.

Disclosure of Invention

The utility model aims at solving the deficiencies of the prior art, providing a simple structure, convenient to use, release effectual, increase work efficiency's plug release frock.

The utility model provides a technical scheme that its technical problem adopted is:

a mandrel releasing tool is characterized by comprising an upper positioning plate, a middle fixing plate, a lower positioning plate, a mandrel fixing block, a positioning mandrel, a mandrel fixing plectrum, a mandrel releasing push rod, a baffle and a return spring, wherein the upper positioning plate, the middle fixing plate and the lower positioning plate are connected with each other in a vertical direction, a strip-shaped groove with openings at two ends is arranged in the middle of the lower end surface of the lower positioning plate, the mandrel fixing block is arranged in the strip-shaped groove, the upper end of the mandrel fixing block is provided with the mandrel releasing push rod, the lower end of the mandrel releasing push rod is connected with the mandrel fixing block, the upper end of the mandrel releasing push rod sequentially penetrates through the lower positioning plate, the middle fixing plate and the upper positioning plate to be connected with the baffle, the return spring is sleeved on the mandrel releasing push rod extending out of the upper positioning plate, and, reset spring's upper end contacts with the baffle, makes plug release push rod be in the state of shifting up through reset spring, the lower terminal surface of plug fixed block be equipped with the both ends open-ended arc wall of location plug matched with, the lower locating plate of bar groove both sides on be equipped with the fixed plectrum of plug respectively, the fixed plectrum of plug upper end stretch into in the lower locating plate with lower locating plate fixed connection, the lower extreme of the fixed plectrum of plug inclines towards bar groove department and contacts the joint and then fixed positioning plug with the location plug of fixing in the arc wall.

Go up the locating plate and be equipped with a middle fixed plate between the locating plate down at least, the position of the lower extreme release of highly definite plug release through middle fixed plate, the release height of quantity control location plug through middle fixed plate.

Go up locating plate and intermediate localization board on be equipped with the bolt and pass the hole, the up end of lower locating plate be equipped with the bolt hole looks isoposition's screw hole, the bolt pass hole and threaded hole in be equipped with the locking bolt, the locking bolt pass the bolt on locating plate and the intermediate localization board in proper order and pass the screw hole fixed connection on hole and the lower localization board, and then realize the fixed connection between locating plate, intermediate fixation board and the lower localization board.

The upper end of plug fixed block be equipped with two plug release push rods side by side at least, the lower extreme of plug release push rod be connected with the plug fixed block, the upper end of plug release push rod is through baffle interconnect, the stability of two plug release push rod increase releases.

The fixed plectrum tip of plug that stretches into locating plate down be equipped with the spacer, the one end of spacer be connected with the fixed plectrum of plug, the other end of spacer is connected with the locating plate down in stretching into the locating plate down, the spacer be the acute angle with the fixed plectrum of plug and be connected, guarantee the connection stability of the fixed plectrum of plug.

The utility model is composed of an upper positioning plate, a middle fixing plate, a lower positioning plate, a mandrel fixing block, a positioning mandrel, a mandrel fixing plectrum, a mandrel releasing push rod, a baffle and a reset spring, wherein the upper positioning plate, the middle fixing plate and the lower positioning plate are connected with each other in a vertical direction, the middle part of the lower end surface of the lower positioning plate is provided with a strip-shaped groove with openings at two ends, the mandrel fixing block is arranged in the strip-shaped groove, the upper end of the mandrel fixing block is provided with the mandrel releasing push rod, the lower end of the mandrel releasing push rod is connected with the mandrel fixing block, the upper end of the mandrel releasing push rod sequentially passes through the lower positioning plate, the middle fixing plate and the upper positioning plate to be connected with the baffle, the mandrel releasing push rod extending out of the upper positioning plate is sleeved with the reset spring, the lower end of the, the lower end face of the mandrel fixing block is provided with an arc-shaped groove with two open ends matched with the positioning mandrel, the lower positioning plates on two sides of the bar-shaped groove are respectively provided with a mandrel fixing shifting piece, the upper end of the mandrel fixing shifting piece extends into the lower positioning plate and is fixedly connected with the lower positioning plate, the lower end of the mandrel fixing shifting piece inclines towards the bar-shaped groove and is in contact clamping connection with the positioning mandrel fixed in the arc-shaped groove so as to fix the positioning mandrel, at least one middle fixing plate is arranged between the upper positioning plate and the lower positioning plate, the release height of the positioning mandrel is adjusted through the quantity of the middle fixing plates, the upper positioning plate and the middle positioning plate are provided with bolt passing holes, the upper end face of the lower positioning plate is provided with threaded holes which are the same as the bolt passing holes, and locking bolts are arranged in the bolt passing holes and the threaded, the locking bolt pass bolt on top board and the intermediate localization board in proper order and pass the screw hole fixed connection on hole and the locating plate down, and then realize the fixed connection between top board, middle fixed plate and the locating plate down, the upper end of plug fixed block be equipped with two plug release push rods side by side at least, the lower extreme of plug release push rod be connected with the plug fixed block, the upper end of plug release push rod is through baffle interconnect, two plug release push rods increase the stability of release, the fixed plectrum tip of plug that stretches into the locating plate down be equipped with the spacer, the one end of spacer be connected with the fixed plectrum of plug, the other end of spacer is stretched into down in the locating plate and is connected with the locating plate down, spacer and the fixed plectrum of plug be acute angle connection, guarantee the connection stability of the fixed plectrum of plug, have simple structure, Convenient use, good release effect, increased working efficiency and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Detailed Description

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

as shown in the attached drawings, the core rod releasing tool is characterized by comprising an upper positioning plate 1, a middle fixing plate 2, a lower positioning plate 3, a core rod fixing block 4, a positioning core rod 5, a core rod fixing plectrum 6, a core rod releasing push rod 7, a baffle plate 8 and a reset spring 9, wherein the upper positioning plate 1, the middle fixing plate 2 and the lower positioning plate 3 are connected with each other in the vertical direction, a strip-shaped groove with openings at two ends is arranged in the middle of the lower end face of the lower positioning plate 3, the core rod fixing block 4 is arranged in the strip-shaped groove, the upper end of the core rod fixing block 4 is provided with the core rod releasing push rod 7, the lower end of the core rod releasing push rod 7 is connected with the core rod fixing block 4, the upper end of the core rod releasing push rod 7 sequentially penetrates through the lower positioning plate 3, the middle fixing plate 2 and the upper positioning plate 1 to be connected with, the lower end of the reset spring 9 is contacted with the upper positioning plate 1, the upper end of the reset spring 9 is contacted with the baffle plate 8, the core rod release push rod 7 is in an upward moving state through the reset spring 9, the lower end face of the core rod fixing block 4 is provided with an arc-shaped groove with two open ends matched with the positioning core rod 5, the lower positioning plates 3 on two sides of the strip-shaped groove are respectively provided with a core rod fixing shifting piece 6, the upper end of the core rod fixing shifting piece 6 extends into the lower positioning plate 3 to be fixedly connected with the lower positioning plate 3, the lower end of the core rod fixing shifting piece 6 inclines towards the strip-shaped groove and is in contact clamping connection with the positioning core rod 5 fixed in the arc-shaped groove to further fix the positioning core rod 5, at least one middle fixing plate 2 is arranged between the upper positioning plate 1 and the lower positioning plate 3, the lower end position of the core rod release is determined through the height, the upper end face of the lower positioning plate 3 is provided with a threaded hole which is the same as the position of the bolt through hole, the bolt through hole and the threaded hole are internally provided with locking bolts 10, the locking bolts 10 sequentially pass through the bolt through holes on the upper positioning plate 1 and the middle positioning plate and are fixedly connected with the threaded hole on the lower positioning plate 3, so that the fixed connection among the upper positioning plate 1, the middle fixing plate 2 and the lower positioning plate 3 is realized, the upper end of the core rod fixing block 4 is at least provided with two core rod releasing push rods 7 in parallel, the lower end of the core rod releasing push rod 7 is connected with the core rod fixing block 4, the upper ends of the core rod releasing push rods 7 are mutually connected through a baffle 8, the two core rod releasing push rods 7 increase the releasing stability, the end part of the core rod fixing plectrum 6 extending into the lower positioning plate 3 is provided with, the other end of the positioning piece 11 extends into the lower positioning plate 3 to be connected with the lower positioning plate 3, and the positioning piece 11 is connected with the core rod fixing shifting piece 6 at an acute angle, so that the connection stability of the core rod fixing shifting piece 6 is ensured.

When the utility model is used, the core rod releasing tool is positioned above the die, the quantity of the middle fixing plates is selected according to the releasing position of the positioning core rod, when the core rod needs to be released, the baffle 8 is pressed, the baffle 8 drives the core rod releasing push rod 7 to push the core rod fixing block 4 to move downwards, the core rod fixing block 4 pushes the core rod fixing shifting sheet 6 to expand outwards, so as to release the positioning core rod 5, the positioning core rod 5 is released to a specific position, when the positioning core rod 5 needs to be installed, the core rod releasing push rod 7 is pushed to drive the core rod fixing block 4 to shift the core rod fixing shifting sheet 6, the core rod is placed in the arc-shaped groove of the core rod fixing block 4, then under the action of the reset spring 9, the reset spring 9 drives the core rod releasing push rod 7 to move upwards, so as to drive the core rod fixing block 4 to move upwards into the strip-shaped groove, the utility model is composed of an upper positioning plate 1, a middle fixing plate 2, a lower positioning plate 3, a mandrel fixing block 4, a positioning mandrel 5, a mandrel fixing plectrum 6, a mandrel releasing push rod 7, a baffle 8 and a reset spring 9, wherein the upper positioning plate 1, the middle fixing plate 2 and the lower positioning plate 3 are connected with each other in the vertical direction, the middle part of the lower end surface of the lower positioning plate 3 is provided with a strip-shaped groove with openings at two ends, the mandrel fixing block 4 is arranged in the strip-shaped groove, the upper end of the mandrel fixing block 4 is provided with the mandrel releasing push rod 7, the lower end of the mandrel releasing push rod 7 is connected with the mandrel fixing block 4, the upper end of the mandrel releasing push rod 7 sequentially passes through the lower positioning plate 3, the middle fixing plate 2 and the upper positioning plate 1 to be connected with the baffle 8, the mandrel releasing push rod 7 extending, the lower end of the reset spring 9 is contacted with the upper positioning plate 1, the upper end of the reset spring 9 is contacted with the baffle plate 8, the core rod release push rod 7 is in an upward moving state through the reset spring 9, the lower end surface of the core rod fixing block 4 is provided with an arc-shaped groove with two open ends matched with the positioning core rod 5, the lower positioning plates 3 on two sides of the strip-shaped groove are respectively provided with a core rod fixing shifting piece 6, the upper end of the core rod fixing shifting piece 6 extends into the lower positioning plate 3 to be fixedly connected with the lower positioning plate 3, the lower end of the core rod fixing shifting piece 6 inclines towards the strip-shaped groove and is contacted and clamped with the positioning core rod 5 fixed in the arc-shaped groove to further fix the positioning core rod 5, at least one middle fixing plate 2 is arranged between the upper positioning plate 1 and the lower positioning plate 3, the upper positioning plate 1 and the middle positioning plate are provided with bolt passing holes, the upper end, the bolt pass holes and the threaded holes are internally provided with locking bolts 10, the locking bolts 10 sequentially pass through the bolt pass holes on the upper positioning plate 1 and the middle positioning plate and are fixedly connected with the threaded holes on the lower positioning plate 3, so that the fixed connection among the upper positioning plate 1, the middle fixing plate 2 and the lower positioning plate 3 is realized, the upper end of the mandrel fixing block 4 is at least provided with two mandrel release push rods 7 in parallel, the lower end of the mandrel release push rod 7 is connected with the mandrel fixing block 4, the upper ends of the mandrel release push rods 7 are mutually connected through a baffle 8, the two mandrel release push rods 7 increase the release stability, the end part of the mandrel fixing plectrum 6 extending into the lower positioning plate 3 is provided with a positioning piece 11, one end of the positioning piece 11 is connected with the mandrel fixing plectrum 6, and the other end of the positioning piece 11 extends into the lower, the locating piece 11 is connected with the fixed shifting piece 6 of the core rod in an acute angle, ensures the connection stability of the fixed shifting piece 6 of the core rod, and has the advantages of simple structure, convenient use, good release effect, increased working efficiency and the like.

Claims

1. A mandrel releasing tool is characterized by comprising an upper positioning plate, a middle fixing plate, a lower positioning plate, a mandrel fixing block, a positioning mandrel, a mandrel fixing plectrum, a mandrel releasing push rod, a baffle and a return spring, wherein the upper positioning plate, the middle fixing plate and the lower positioning plate are connected with each other in a vertical direction, a strip-shaped groove with openings at two ends is arranged in the middle of the lower end surface of the lower positioning plate, the mandrel fixing block is arranged in the strip-shaped groove, the upper end of the mandrel fixing block is provided with the mandrel releasing push rod, the lower end of the mandrel releasing push rod is connected with the mandrel fixing block, the upper end of the mandrel releasing push rod sequentially penetrates through the lower positioning plate, the middle fixing plate and the upper positioning plate to be connected with the baffle, the return spring is sleeved on the mandrel releasing push rod extending out of the upper positioning plate, and, reset spring's upper end contacts with the baffle, makes plug release push rod be in the state of shifting up through reset spring, the lower terminal surface of plug fixed block be equipped with the both ends open-ended arc wall of location plug matched with, the lower locating plate of bar groove both sides on be equipped with the fixed plectrum of plug respectively, the fixed plectrum of plug upper end stretch into in the lower locating plate with lower locating plate fixed connection, the lower extreme of the fixed plectrum of plug inclines towards bar groove department and contacts the joint and then fixed positioning plug with the location plug of fixing in the arc wall.

2. The mandrel releasing tool according to claim 1, wherein at least one middle fixing plate is arranged between the upper positioning plate and the lower positioning plate, and the releasing height of the mandrel is adjusted and positioned through the number of the middle fixing plates.

3. The mandrel releasing tool according to claim 1, wherein the upper positioning plate and the middle positioning plate are provided with bolt passing holes, the upper end face of the lower positioning plate is provided with threaded holes at the same positions as the bolt passing holes, locking bolts are arranged in the bolt passing holes and the threaded holes, the locking bolts sequentially pass through the bolt passing holes in the upper positioning plate and the middle positioning plate and are fixedly connected with the threaded holes in the lower positioning plate, and then the upper positioning plate, the middle fixing plate and the lower positioning plate are fixedly connected.

4. The mandrel releasing tool according to claim 1, wherein at least two mandrel releasing push rods are arranged at the upper end of the mandrel fixing block in parallel, the lower ends of the mandrel releasing push rods are connected with the mandrel fixing block, the upper ends of the mandrel releasing push rods are connected with each other through a baffle, and the two mandrel releasing push rods increase releasing stability.

5. The mandrel releasing tool according to claim 1, wherein a positioning piece is arranged at the end of the mandrel fixing shifting piece extending into the lower positioning plate, one end of the positioning piece is connected with the mandrel fixing shifting piece, the other end of the positioning piece extends into the lower positioning plate and is connected with the lower positioning plate, and the positioning piece is connected with the mandrel fixing shifting piece in an acute angle to ensure the connection stability of the mandrel fixing shifting piece.