CN215746652U

CN215746652U - Adjustable cushion block for numerical control milling machine and machining center

Info

Publication number: CN215746652U
Application number: CN202121954252.XU
Authority: CN
Inventors: 舒鸫鹏
Original assignee: Chongqing Industry Polytechnic College
Current assignee: Chongqing Industry Polytechnic College
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-08
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses an adjustable cushion block used by a numerical control milling machine and a machining center, which comprises: lower cushion, go up the cushion, a groove, the window, spacing hole, adjusting bolt, spacing post and screw etc, the user formulates the parts machining scheme based on the part drawing, make clear and definite centre gripping degree of depth, then rotate each adjusting bolt according to the demand and expose the head edge of window, and confirm each adjusting bolt's screw in degree of depth through the scale mark, in order to ensure the depth of parallelism between lower cushion and the last cushion, treat that the whole height adjustment of cushion and the last cushion that the concatenation got up is required high after, the whole lower cushion that will adjust and last cushion are placed on anchor clamps holding surface, then place the part blank on the last cushion upper surface, use anchor clamps to press from both sides the part at last and begin to process, thereby can control the height that the part of waiting to process was supported up, and avoid the polylith stack with the error that produces.

Description

Adjustable cushion block for numerical control milling machine and machining center

Technical Field

The utility model relates to the field of machine tool accessories, in particular to an adjustable cushion block used for a numerical control milling machine and a machining center.

Background

In the machining industry, when a part is clamped by a clamp, a cushion block is required to be supported between the part and a clamp supporting surface to change the clamping depth of the part, in the current prior art, people often use a fixed cushion block to achieve a desired bearing height, and when the fixed cushion block is used, a plurality of cushion blocks are required to be combined to achieve the desired bearing height.

Because the cushion blocks have manufacturing errors, the more cushion blocks are used, the larger the error finally displayed by superposition is, the smaller the processing error is added to the system, but if people want to use the limited number of cushion blocks to avoid the errors and simultaneously achieve the required supporting height, the cushion blocks with different specifications need to be configured in large quantity, so that the cushion block manufacturing cost is increased, the time and labor cost for selecting and combining the cushion blocks are increased, and the processing efficiency and cost control are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a numerical control milling machine and a machining center which use adjustable cushion blocks, and can avoid the problems caused by the fact that a factory wants to use a limited number of cushion blocks to achieve supporting height.

Therefore, the utility model provides an adjustable cushion block used by a numerical control milling machine and a machining center, which comprises the following components:

the upper surface of the lower cushion block is provided with a groove, and the bottom of the groove is provided with a limit hole in the vertical direction;

go up the cushion, be connected with lower cushion through a plurality of regulation structures, each adjust the structure and all locate lower cushion with between the last cushion, each is adjusted the structure and all includes:

the head of the adjusting bolt is positioned in the groove, the head of the adjusting bolt is fixedly connected with a limiting column, and the limiting column is movably connected in the limiting hole and used for enabling the adjusting bolt to freely rotate around the axis of the adjusting bolt;

the screw hole is arranged on the lower surface of the upper cushion block and is in threaded connection with the adjusting bolt.

Further comprising: a first-stage positioning pin;

the bottom of the upper cushion block is provided with a first positioning hole in the vertical direction, the upper portion of the lower cushion block is provided with a second positioning hole, and the first positioning hole and the second positioning hole can be simultaneously placed in the first-level positioning.

Further comprising: a secondary positioning pin;

the bottom of the first-stage positioning pin is provided with a secondary pin hole in the horizontal direction, the side wall of the second positioning hole is provided with a horizontal secondary positioning hole, and the secondary positioning pin can simultaneously penetrate into the secondary positioning hole and the secondary pin hole from the outer side of the lower cushion block.

The first positioning pin and the first positioning hole, the second positioning hole, the secondary positioning pin, the secondary positioning hole and the secondary pin column hole which are matched with the first positioning pin are all provided with a plurality of holes.

A limiting ring is fixedly sleeved on the limiting column, an annular groove matched with the limiting ring is formed in the inner side wall of the limiting hole, and the limiting ring is connected in the annular groove in a sliding mode.

And friction grains are distributed on the outer side surface of the head of the adjusting bolt.

The outer side surface of the head of the adjusting bolt is printed with closed scale marks along the circumferential direction of the outer side surface, and the outer side wall of the lower cushion block is printed with scale reference lines at the groove.

The utility model has the beneficial effects that:

the utility model provides an adjustable cushion block used by a numerical control milling machine and a machining center, which comprises an upper cushion block and a lower cushion block, wherein the upper cushion block and the lower cushion block are connected by an adjusting bolt and other connecting and stabilizing mechanisms, and the integral height of the spliced cushion block and the upper cushion block can be controlled by adjusting the screwing-in depth of the adjusting bolt, so that the supported height of a part to be machined can be controlled, and errors caused by the superposition of a plurality of cushion blocks can be avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front sectional view of the overall structure of the present invention;

fig. 3 is a detailed view of the adjusting bolt of the present invention.

Description of reference numerals:

1. a lower cushion block; 2. an upper cushion block; 3. a window; 4. adjusting the bolt; 5. a limiting column; 6. a screw hole; 7. a first-stage positioning pin; 8. a secondary positioning pin; 9. a limiting ring.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 3, an adjustable spacer for use in a numerically controlled milling machine and a machining center includes: the upper cushion block 1 and the lower cushion block 2 are 150mm in length and 10mm in width, the upper cushion block 1 and the lower cushion block 2 are overlapped up and down, the total height is 25mm, the lower cushion block 1 is arranged on a supporting surface of a universal fixture of a machine tool, a groove is formed in the upper surface of the lower cushion block 1, the upper portion of the groove is open, the length and the width of the groove are 11mm, the diameter of the head of the bolt in the drawing is 11.4mm, a limiting hole in the vertical direction is formed in the bottom of the groove, and the diameter of the hole in the limiting hole is 8 mm; go up cushion 2 and be connected with cushion 1 down through a plurality of regulation structures, each adjust the structure and all locate cushion 1 down with between the cushion 2, each is adjusted the structure and all includes: the adjusting bolt comprises a window 3, a limiting hole, an adjusting bolt 4, a limiting column 5 and a screw hole 6, wherein the head of the adjusting bolt 4 is positioned in a groove, in order to enable a user to operate and rotate the adjusting bolt 4 when an upper cushion block 2 and a lower cushion block 1 are combined, the front part and the rear part of the groove are both provided with the window 3 communicated with the outside, the edge of the head of the adjusting bolt 4 is exposed out of the window 3 to enable the user to rub and rotate, meanwhile, the head of the adjusting bolt 4 is fixedly connected with the limiting column 5, and the limiting column 5 is movably connected in the limiting hole and used for enabling the adjusting bolt 4 to freely rotate around the axis of the adjusting bolt and not to horizontally shake or incline, so that the precision of the system is ensured; the screw 6 is opened in the lower surface of last cushion 2 for thereby with 4 threaded connection of adjusting bolt splice under cushion 1 and last cushion 2, and can control the whole height of cushion 1 and last cushion 2 that the concatenation got up through adjusting bolt 4's screw in degree of depth, thereby can control the height that the part of treating processing was supported, and avoid the error of polylith cushion stack in order to produce.

Further, still include: a first-level positioning pin 7 with the diameter of 4 mm; and the bottom of the upper cushion block 2 is provided with a first positioning hole in the vertical direction, the upper part of the lower cushion block 1 is provided with a second positioning hole, and the first positioning hole and the second positioning hole can be simultaneously placed into the first-stage positioning pin 7. The upper cushion block and the lower cushion block are assembled together to play a role in auxiliary positioning, and horizontal shaking and relative position micro-displacement of the two cushion blocks in the machining process are further prevented.

Further, still include: a secondary positioning pin 8, the diameter of which is 2 mm; and the bottom of the primary positioning pin 7 is provided with a secondary pin hole in the horizontal direction, the side wall of the second positioning hole is provided with a horizontal secondary positioning hole, and the secondary positioning pin 8 can simultaneously penetrate into the secondary positioning hole and the secondary pin hole from the outer side of the lower cushion block 1, so that the primary positioning pin 7 is further reinforced at the vertical position, and the first positioning pin 7 is prevented from inclining in the machining process.

Furthermore, the primary positioning pin 7 and the first positioning hole, the second positioning hole, the secondary positioning pin 8, the secondary positioning hole and the secondary pin hole matched with the primary positioning pin are all provided with a plurality of holes.

Further, the fixed cover of spacing post 5 has connect a spacing collar 9, can use axial steel wire retaining ring as spacing collar 9, and its internal diameter is 4mm, external diameter 6mm, thickness 1.5mm, breach length 2mm, just seted up on the inside wall in spacing hole with spacing collar 9 assorted ring channel, spacing collar 9 sliding connection in the ring channel for prevent that spacing post 5 from leaving spacing hole.

Furthermore, friction lines are arranged on the outer side face of the head of the adjusting bolt 4, and the friction lines can be manufactured in a knurling processing mode and used for facilitating a user to rub and rotate the edge of the head of the adjusting bolt 4.

Furthermore, the outer side surface of the head of each adjusting bolt 4 is printed with a closed scale mark along the circumferential direction of the adjusting bolt, and the outer side wall of the lower cushion block 1 is printed with a scale reference line at the window 3 of the groove, so as to confirm the screwing-in depth of each adjusting bolt 4 and ensure the parallelism between the lower cushion block 1 and the upper cushion block 2 when needed.

The use method of the utility model comprises the following steps:

the user formulates the parts machining scheme based on the part drawing, through detecting current processing conditions, make clear the centre gripping degree of depth of universal fixturing such as flat tongs, three-jaw chuck, then the user rotates each adjusting bolt 4 according to the demand and exposes the head edge of window 3, and confirm the screw in degree of depth of each adjusting bolt 4 through the scale mark, in order to ensure the depth of parallelism between cushion 1 and the last cushion 2 down, treat that the whole height adjustment of cushion 1 and last cushion 2 that the concatenation is got up is required high after, place the whole of cushion 1 and last cushion 2 that will adjust on the anchor clamps holding surface, then place the part blank on last cushion 2 upper surface, use anchor clamps to press from both sides tight part at last and begin to process.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. The utility model provides a numerically controlled fraise machine and machining center use and can adjust cushion, its characterized in that includes:

the upper surface of the lower cushion block (1) is provided with a groove, and the bottom of the groove is provided with a limiting hole in the vertical direction;

go up cushion (2), be connected with lower cushion (1) through a plurality of regulation structures, each adjust the structure and all locate lower cushion (1) with between last cushion (2), each is adjusted the structure and all includes: the head of the adjusting bolt (4) is positioned in the groove, the head of the adjusting bolt (4) is fixedly connected with a limiting column (5), and the limiting column (5) is movably connected in the limiting hole and used for enabling the adjusting bolt (4) to freely rotate around the axis of the adjusting bolt; and the screw hole (6) is formed in the lower surface of the upper cushion block (2), and the screw hole (6) is in threaded connection with the adjusting bolt (4).

2. The numerically controlled milling machine and machining center using the adjustable spacer as set forth in claim 1, further comprising: a primary positioning pin (7); the bottom of the upper cushion block (2) is provided with a first positioning hole in the vertical direction, the upper portion of the lower cushion block (1) is provided with a second positioning hole, and the first positioning hole and the second positioning hole can be simultaneously placed into the first-level positioning pin (7).

3. The numerically controlled milling machine and machining center using the adjustable spacer as set forth in claim 2, further comprising: a secondary positioning pin (8); the bottom of the primary positioning pin (7) is provided with a secondary pin hole in the horizontal direction, the side wall of the second positioning hole is provided with a horizontal secondary positioning hole, and the secondary positioning pin (8) can simultaneously penetrate into the secondary positioning hole and the secondary pin hole from the outer side of the lower cushion block (1).

4. A numerically controlled milling machine and machining center using adjustable spacer blocks according to claim 3, characterized in that there are a plurality of the primary positioning pins (7) and the matching first positioning holes, second positioning holes, secondary positioning pins (8), secondary positioning holes and secondary pin holes.

5. The adjustable cushion block for the numerical control milling machine and the machining center according to claim 1, wherein a limit ring (9) is fixedly sleeved on the limit column (5), an annular groove matched with the limit ring (9) is formed in the inner side wall of the limit hole, and the limit ring (9) is slidably connected in the annular groove.

6. The numerical control milling machine and the machining center using the adjustable cushion block as claimed in claim 1, wherein the outer side surface of the head of the adjusting bolt (4) is provided with friction lines.

7. A numerically controlled milling machine and machining center using adjustable spacer as claimed in claim 1, characterized in that the outer side of the head of the adjusting bolt (4) is printed with a closed scale along its circumference, and the outer side wall of the lower spacer (1) is printed with a scale reference line at said groove.