CN216126829U

CN216126829U - Magnetic suction floating pressure head and self-adaptive floating pressure plate tool

Info

Publication number: CN216126829U
Application number: CN202120718345.6U
Authority: CN
Inventors: 张晨光; 张守联; 李玲明
Original assignee: Shandong Ruibin Precision Manufacturing Co ltd
Current assignee: Shandong Ruibin Precision Manufacturing Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-03-25
Anticipated expiration: 2031-04-08

Abstract

The utility model relates to a magnetic suction floating pressure head and a self-adaptive floating pressure plate tool. The technical scheme is that the magnetic floating pressure head comprises a magnetic block and a floating ball, wherein the floating ball is attracted to the bottom surface of the magnetic block, and the floating ball can abut against the top end of a blank hole of a clamped blank. The magnetic block clamping device has the beneficial effects that in the process of pressing down the pressing head, the floating ball is in contact with the top end edge of the blank hole of the clamped blank, and can move on the bottom surface of the magnetic block and move to the position concentric with the blank hole along with the pressing down; because the floating ball is attached to the blank hole, the centers of the floating ball and the blank hole are aligned, namely, the pressure applied to the blank through the floating ball is circumferentially uniform, the phenomenon of uneven pressure in a certain direction cannot occur, and the blank cannot move.

Description

Magnetic suction floating pressure head and self-adaptive floating pressure plate tool

Technical Field

The utility model relates to the field of fixture tools, in particular to a magnetic suction floating pressure head and a self-adaptive floating pressure plate tool.

Background

In the machining process, a part is quickly and accurately positioned by a common tool, and a pressing plate device is an important auxiliary element for transferring clamping force to a blank by the tool. In production, the quality accident ratio caused by the design failure of the pressing plate device is that the pressing plate device releases pressure through the blank, the component force of the pressing force acts on the positioning element to cause the tool positioning element and the positioned blank to generate micro displacement, the precision part with reserved blank holes is particularly prominent in processing, and the clamping pressure point is difficult to be accurately aligned with the blank holes, so that uneven force is generated in one or more directions to move the blank in the direction, and the processing precision is seriously influenced.

Disclosure of Invention

The utility model provides a magnetic suction floating pressure head which is in spherical contact, automatically centered and uniformly transmitted, aiming at the problem that the blank with a blank hole cannot be accurately centered when the blank is clamped by the existing pressing plate tool.

In order to solve the problems, the utility model adopts the technical scheme that the magnetic floating pressure head comprises a magnetic block and a floating ball, wherein the floating ball is attracted to the bottom surface of the magnetic block, and can abut against the top end of a blank hole of a clamped blank. In the process of pressing down the pressing head, the floating ball is contacted with the top end edge of a blank hole of a clamped blank, and the floating ball can move on the bottom surface of the magnetic block and move to a position concentric with the blank hole along with pressing down; because the floating ball is attached to the blank hole, the centers of the floating ball and the blank hole are aligned, namely, the pressure applied to the blank through the floating ball is uniform, the phenomenon of uneven pressure in a certain direction cannot occur, and the blank cannot move.

Preferably, the magnetic block pressing device further comprises a pressing head seat, and the magnetic block is arranged on the bottom surface of the pressing head seat.

Preferably, the magnetic floating ball bearing further comprises a limiting sleeve, the limiting sleeve is of an axially-through cylindrical shape, the magnetic block is arranged in the limiting sleeve, the bottom surface of the limiting sleeve is lower than that of the magnetic block, and the bottom surface of the limiting sleeve is higher than the lowest end of the floating ball. The stop collar can prevent the floating ball from deviating from the magnetic block.

Preferably, the floating ball is a steel ball. Can transmit larger pressure and is not easy to deform.

The utility model also provides a self-adaptive floating pressure plate tool which is provided with the magnetic suction floating pressure head and further comprises a base and an upper pressure plate, wherein the magnetic suction floating pressure head is arranged on the bottom surface of the upper pressure plate, the base is connected with the upper pressure plate through a tensioning device, and the tensioning device can enable the upper pressure plate to be close to or far away from the base in the vertical direction. The tool can eliminate the influence on the positioning precision of the clamping force due to the fact that the pressure head and the blank preformed hole are not aligned well to generate component force, better clamps a blank piece and improves the machining precision.

Preferably, the tensioning device is a rotary hydraulic cylinder. Can provide larger pressure, and can make the upper pressure plate rotate and be convenient for the installation of blank.

Preferably, a certain number of blank installation seats are arranged on the base, and the blank installation seats are opposite to the magnetic floating pressure head in the vertical position one by one.

Preferably, the magnetic floating pressure head is mounted on the upper pressure plate through a bolt, and the bolt penetrates through the upper pressure plate above the upper pressure plate and penetrates through a pressure head seat arranged above the magnetic block.

Preferably, at least one upper pressing plate is arranged on the base. Can set up multiunit processing position, improve machining efficiency.

According to the technical scheme, the magnetic suction floating pressure head and the pressure plate tool applying the pressure head can automatically align and adapt to blank holes of blank pieces, the blank pieces cannot move, clamping force is uniformly transmitted to the blank pieces through contact between spherical surfaces and the holes, the influence of clamping force on positioning accuracy due to poor alignment of the pressure head and blank preformed holes to component force is eliminated, the magnetic suction floating pressure head is specially used for the blank pieces with the blank holes, and the processing accuracy is improved; meanwhile, the base is provided with a plurality of upper pressing plates and pressing heads, a plurality of blank pieces can be clamped and processed at one time, and production efficiency is high.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the magnetic floating ram according to the present invention.

Fig. 2 is a schematic structural diagram of the adaptive floating platen tool according to the present invention.

In the figure: 1. the device comprises a magnetic block, 2 floating balls, 3 press head seats, 4 limiting sleeves, 5 bases, 6 upper press plates, 7 rotary hydraulic cylinders, 8 blank mounting seats, 9 bolts, 10 blanks and 11 blank holes.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in fig. 1 and 2, the magnetic floating pressure head comprises a magnetic block 1 and a floating ball 2, wherein the floating ball 2 is a steel ball, the floating ball 2 is absorbed on the bottom surface of the magnetic block 1, a pressure head seat 3 is arranged above the magnetic block 1, and the top surface of the pressure head seat 3 is provided with a mounting hole for structural connection with a pressure plate of a tool; the outer sides of the press head seat 3 and the magnetic block 1 are provided with limiting sleeves 4, the limiting sleeves 4 are cylindrical and axially communicated, the press head seat 3 and the magnetic block 1 are arranged in communicated cavities of the limiting sleeves 4, the bottom surfaces of the limiting sleeves 4 are lower than the bottom surfaces of the magnetic block 1, and the bottom surfaces of the limiting sleeves 4 are higher than the lowest end of the floating ball 2.

The working principle of the pressure head is that the floating ball 2 is spontaneously positioned at the central position of the bottom surface of the magnetic block 1 under the action of a magnetic field on the bottom surface of the magnetic block 1 and is approximately positioned at the axial position of a blank hole 11 of a blank 10; when the pressure head is pressed down, the floating ball 2 just contacts the blank hole 11, the contact point generates a limiting effect on the floating ball 2, at the moment, the floating ball 2 rolls or slides on the bottom surface of the magnetic block 1, and finally moves to the axis position of the blank hole 11 and is pressed tightly, in the process, the floating ball 2 realizes self-adaptive centering according to the position of the blank hole 11, and the clamping precision is high; simultaneously, the floating ball 2 is attached to the blank hole 11, the contact line is in a closed circle shape, the pressure applied to the blank through the floating ball is uniform in the circumferential direction, the phenomenon of uneven pressure in a certain direction cannot occur, and the blank cannot move.

The utility model also provides a self-adaptive floating pressure plate tool which is structurally shown in figure 2 and is provided with a certain number of magnetic suction floating pressure heads, the tool comprises a base 5 and an upper pressure plate 6, the magnetic suction floating pressure heads are arranged on the bottom surface of the upper pressure plate 6 through bolts 9, the bolts 9 penetrate through the upper pressure plate 6 above the upper pressure plate 6 and penetrate through a pressure head seat 3 arranged above the magnetic block 1, a certain number of blank piece mounting seats 8 are arranged on the base 5, and the blank piece mounting seats 8 are opposite to the magnetic suction floating pressure heads in the up-and-down positions one by one; the base 5 is connected with the upper pressure plate 6 through a rotary hydraulic cylinder 7, and the rotary hydraulic cylinder 7 can enable the upper pressure plate 6 to be close to or far away from the base 5 in the vertical direction.

Furthermore, a plurality of upper pressing plates 6 can be arranged on the base 5, and the upper pressing plates 6 are respectively provided with a plurality of pressing heads, so that one set of tool can clamp more blank pieces, and the clamping and processing efficiency is improved

The pressing head and the pressing plate tool can automatically center and adapt to the blank hole of the blank, the blank cannot move, the clamping force is uniformly transmitted to the blank through the contact between the spherical surface and the hole, the influence of the clamping force on the positioning precision after component force is generated due to poor centering of the pressing head and the blank preformed hole is eliminated, the pressing head and the pressing plate tool are specially used for the blank with the blank hole, and the processing precision is improved; meanwhile, the base is provided with a plurality of upper pressing plates and pressing heads, a plurality of blank pieces can be clamped and processed at one time, and production efficiency is high.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The magnetic floating pressure head is characterized by comprising a magnetic block (1) and a floating ball (2), wherein the floating ball (2) is attracted to the bottom surface of the magnetic block (1), and the floating ball (2) can abut against the top end of a blank hole of a clamped blank.

2. The magnetic suction floating pressure head according to claim 1, characterized in that it further comprises a pressure head seat (3), and the magnetic block (1) is arranged on the bottom surface of the pressure head seat (3).

3. The magnetic suction floating pressure head according to claim 1 or 2, characterized by further comprising a limiting sleeve (4), wherein the limiting sleeve (4) is of a cylindrical shape which is axially through, the magnetic block is arranged in the limiting sleeve (4), the bottom surface of the limiting sleeve (4) is lower than the bottom surface of the magnetic block (1), and the bottom surface of the limiting sleeve (4) is higher than the lowest end of the floating ball (2).

4. A magnetically attracted floating head according to claim 1 or 2, wherein the floating ball (2) is a steel ball.

5. An adaptive floating pressure plate tool is characterized in that a certain number of magnetic suction floating pressure heads according to any one of claims 1 to 4 are installed, the adaptive floating pressure head further comprises a base (5) and an upper pressure plate (6), the magnetic suction floating pressure heads are installed on the bottom surface of the upper pressure plate (6), the base (5) and the upper pressure plate (6) are connected through a tensioning device, and the tensioning device can enable the upper pressure plate (6) to be close to or far away from the base (5) in the vertical direction.

6. The adaptive floating platen tooling of claim 5, wherein the tensioning device is a rotary hydraulic cylinder (7).

7. The self-adaptive floating pressure plate tool according to claim 5 or 6, wherein a certain number of blank mounting seats (8) are arranged on the base (5), and the blank mounting seats (8) are opposite to the magnetic floating pressure head in the up-down position one by one.

8. The self-adaptive floating pressure plate tool according to claim 5 or 6, wherein the magnetic floating pressure head is mounted on the upper pressure plate (6) through a bolt (9), and the bolt (9) penetrates through the upper pressure plate (6) above the upper pressure plate (6) and penetrates through a pressure head seat (3) arranged above the magnetic block (1).

9. The self-adaptive floating platen tool according to claim 5 or 6, wherein at least one upper platen (6) is provided on the base (5).