CN112605678B

CN112605678B - Positioning device for machining

Info

Publication number: CN112605678B
Application number: CN202011332154.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Nanchang Poly Thai Mining Machinery Manufacturing Co ltd
Current assignee: Nanchang Jutai Mining Machinery Manufacturing Co., Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-12-03
Anticipated expiration: 2040-11-24
Also published as: CN112605678A

Abstract

The invention discloses a positioning device for machining, which comprises a base, wherein an adjusting knob is fixedly arranged on the left side of the front surface of the base, a threaded hole is formed in the right side of the front surface of the base, a recovery box is movably arranged in the middle of the upper surface of the base, a first adjusting rod is fixedly arranged on the right side of the upper surface of the base, and a first limiting sliding groove is formed in the left side of the upper surface of the base; the adjustable positioning surface is arranged, so that a larger positioning area can be provided, the stability of a workpiece with a larger volume in the processing process is further improved, the adjustable positioning surface is additionally provided with a front-back adjusting device, a left-right adjusting device and an up-down adjusting device, so that workpieces with different specifications and types can be conveniently positioned, and the adjustable positioning surface is matched with a cutter rotating head and the like which are processed externally for use, so that the using function of the positioning device is enriched, and the adjustable positioning surface is additionally provided with a recovery device, so that ground scraps of the cutter rotating head and the like are recovered and reused, and the resource saving is facilitated.

Description

Positioning device for machining

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a positioning device for machining.

Background

In the machining industry, positioning devices play a very important role in ensuring that workpieces are always in the correct position relative to machine tools, etc., and ensuring the consistency and quality of the workpiece machining. In the mechanical processing, a plurality of working procedures are needed from a blank to a finished product, and the positioning mode of each working procedure is various.

However, the traditional mechanical positioning device has certain defects, the clamping and supporting area of the traditional mechanical positioning device cannot be adjusted, and when a large workpiece is clamped, the situation of unstable clamping is easy to occur, so that the production and processing of machinery are influenced; in addition, the traditional positioning device is not flexible to use, the clamping height and the transverse position of workpieces with different sizes and shapes can not be adjusted, and the traditional positioning device is not beneficial to matching with processing of processing cutters such as external milling cutters and the like; and traditional positioner lacks recovery unit, and the metal piece that the cutter turned round etc. was cut easily scatters on clamping device's surface, influences positioner's use to scattered metal piece is unfavorable for the recovery of resource and recycles.

Disclosure of Invention

The invention aims to provide a positioning device for machining, which aims to solve the problems that the clamping and supporting area of the traditional mechanical positioning device provided in the background technology is not adjustable, and when a large workpiece is clamped, the clamping is unstable, so that the production and machining of the machine are influenced; in addition, the traditional positioning device is not flexible to use, the clamping height and the transverse position of workpieces with different sizes and shapes can not be adjusted, and the traditional positioning device is not beneficial to matching with processing of processing cutters such as external milling cutters and the like; and traditional positioner lacks recovery unit, and the metal piece that the cutter turned round etc. was cut easily scatters on clamping device's surface, influences positioner's use to scattered metal piece is unfavorable for the problem of the recovery of resource and recycles.

In order to achieve the purpose, the invention adopts the technical scheme that:

a positioning device for machining comprises a base, wherein an adjusting knob is fixedly mounted on the left side of the front surface of the base, a threaded hole is formed in the right side of the front surface of the base, a recovery box is movably mounted in the middle of the upper surface of the base, a first adjusting rod is fixedly mounted on the right side of the upper surface of the base, a first limiting chute is formed in the left side of the upper surface of the base, a supporting column is movably mounted inside the first limiting chute, a third limiting chute is formed in the front surface of the supporting column, a sliding block is movably mounted on the inner wall of the third limiting chute, a second adjusting rod is fixedly mounted on the outer wall of the sliding block, a second connecting sleeve is fixedly mounted on the inner side of the second adjusting rod, a bearing cross beam is fixedly welded on the inner side of the sliding block, a positioning block is fixedly mounted on the inner side of the bearing cross beam, and a second clamping groove is formed in the front end of the upper surface of the positioning block, the inner wall movable mounting of second draw-in groove has the second connecting block, first draw-in groove has been seted up to the rear end of locating piece upper surface, the inside movable mounting of first draw-in groove has first connecting block, the bar groove has been seted up to the upper surface of first draw-in groove, the inside movable mounting in bar groove has the second ball, the fixed orifices has all been seted up on the right surface of first connecting block and the right surface of second connecting block, the front end fixed mounting on locating piece right surface has the second gim peg, the rear end fixed mounting on locating piece right surface has first gim peg, the front end fixed mounting on first connecting block right surface has first stopper, the rear end fixed mounting on second connecting block right surface has the second stopper.

As a further scheme of the present invention, the second balls are provided with a plurality of groups, the plurality of groups of second balls are uniformly distributed on the upper surfaces of the first clamping groove and the second clamping groove, eight groups of fixing holes are provided, wherein four groups of fixing holes are provided on the right surface of the first connecting block, the other four groups of fixing holes are provided on the right surface of the second connecting block, the first connecting block, the second connecting block and the positioning block are movably connected through the second balls, the first connecting block and the positioning block are fixedly connected through the mutual matching of the first fixing bolt and the fixing hole, and the second connecting block and the positioning block are movably connected through the mutual matching of the second fixing bolt and the fixing hole.

As a further scheme of the invention, the rear end of the adjusting knob is fixedly provided with first connecting sleeves, the first adjusting rods are provided with four groups, the bottom of the supporting column is fixedly provided with a first limiting block, the supporting column and the base are connected in a sliding manner through a first limiting sliding groove and a first limiting clamping block, and the supporting column and the base are fixedly connected through two groups of first adjusting rods.

As a further scheme of the invention, a third limiting fixture block is fixedly mounted at the bottom of the sliding block, and the sliding block is movably connected with the support column through the third limiting fixture block and a third limiting sliding groove.

As a further scheme of the invention, a first limiting hole is formed in the sliding block, a second limiting hole is formed in the third limiting sliding groove, a limiting post is movably mounted in the second limiting hole, and the sliding block and the supporting post are fixedly connected through the mutual matching of the first limiting hole, the second limiting hole and the limiting post.

As a further scheme of the invention, each group of third limiting sliding grooves is provided with a plurality of groups of second limiting holes, and the sliding block is provided with two groups of first limiting holes.

As a further scheme of the invention, a second limiting chute is formed in the upper surface of the bearing cross beam, first balls are movably mounted inside the second limiting chute, the first balls are provided with a plurality of groups, a second limiting fixture block is fixedly mounted at the bottom of the positioning block, and the positioning block and the bearing cross beam are movably connected through the mutual matching of the second limiting chute, the second limiting fixture block and the plurality of groups of first balls.

As a further scheme of the invention, two groups of positioning blocks are arranged, the outer side of each group of positioning blocks is fixedly connected with one group of second adjusting rods, and each group of positioning blocks is fixedly connected with the bearing cross beam through one group of second adjusting rods.

As a further scheme of the invention, a slide rail is arranged in the base, a handle is fixedly arranged on the front surface of the recovery box, a groove is formed in the upper surface of the recovery box, and the recovery box is movably connected with the base through the slide rail.

Compared with the prior art, the invention has the following beneficial effects:

1. through the first connecting block, the second connecting block that set up, can increase centre gripping location area, when the great bulky machined part of centre gripping, great centre gripping location area can increase the stability of machined part, avoids the machined part to take place not hard up in the course of working, and then leads to the position of processing such as processing cutter turn round to take place the cheaply, influences the quality of machined part, and then increases the manufacturing cost of enterprise.

2. Through the front and back that sets up, control and upper and lower adjusting device, can adjust the machined part on locating piece and the locating piece about, control and the back-and-forth movement, this positioner's locate function has been richened, be convenient for fix a position different specifications, the machined part of size, make this positioner and outside cutter turn round the cooperation service function further increase, the problem of traditional positioner not nimble enough in the use has been avoided, make this positioner can use in the middle of a plurality of machining production location nodes, the manufacturing cost of enterprise has been reduced to a certain extent, this positioner's practicality has effectively been increased.

3. Through the collection box that sets up, can collect the metal piece that cuts on the machined part, avoid on the machined part scattered piece that falls on positioner and external machine, and then influence the just-produced use of machine, the metal piece of retrieving is favorable to the recovery of resource to recycle to be provided with the handle on the collection box, the operating personnel's of being convenient for use increases user of service's work efficiency.

Drawings

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

FIG. 2 is a schematic structural view of a locating block and load-bearing beam of the present invention;

FIG. 3 is a schematic diagram of a positioning block according to the present invention;

FIG. 4 is a schematic structural view of the support pillar and the first limiting chute of the present invention

FIG. 5 is a schematic structural diagram of a support pillar and a slider according to the present invention

FIG. 6 is a schematic view of the recycling bin of the present invention

In the figure: 1-base, 2-adjusting knob, 3-first limiting chute, 4-supporting column, 5-bearing beam, 6-positioning block, 7-second connecting sleeve, 8-second limiting chute, 9-sliding block, 10-second adjusting rod, 11-third limiting chute, 12-first adjusting rod, 13-threaded hole, 14-recycling box, 15-first connecting block, 16-second limiting clamping block, 17-second connecting block, 18-first ball, 19-strip-shaped groove, 20-first clamping groove, 21-first limiting block, 22-first fixing bolt, 23-second fixing bolt, 24-second clamping groove, 25-second limiting block, 26-fixing hole, 27-second ball, 28-first limiting clamping block, 29-a first connecting sleeve, 30-a first limiting hole, 31-a third limiting fixture block, 32-a limiting column, 33-a second limiting hole, 34-a handle and 35-a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 protection scope of the present invention.

Example 1

Referring to fig. 1-3, the present invention provides a positioning device for machining; comprises a base 1, an adjusting knob 2 is fixedly installed on the left side of the front surface of the base 1, which is convenient for a worker to twist, a threaded hole 13 is formed on the right side of the front surface of the base 1, which is convenient for fixing a twisted first adjusting rod 12, a recycling box 14 is movably installed in the middle of the upper surface of the base 1, a first adjusting rod 12 is fixedly installed on the right side of the upper surface of the base 1, a first limiting chute 3 is formed on the left side of the upper surface of the base 1, a supporting column 4 is movably installed inside the first limiting chute 3, a third limiting chute 11 is formed on the front surface of the supporting column 4, a sliding block 9 is movably installed on the inner wall of the third limiting chute 11, a second adjusting rod 10 is fixedly installed on the outer wall of the sliding block 9, a second connecting sleeve 7 is fixedly installed on the inner side of the second adjusting rod 10, which is convenient for being butted with the second adjusting rod 10, and assisting the second adjusting rod 10 in adjusting the position of the supporting column 4, a bearing beam 5 is fixedly welded on the inner side of the sliding block 9, a positioning block 6 is fixedly installed on the inner side of the bearing beam 5, a second clamping groove 24 is formed in the front end of the upper surface of the positioning block 6, a second connecting block 17 is movably installed on the inner wall of the second clamping groove 24, a first clamping groove 20 is formed in the rear end of the upper surface of the positioning block 6, a first connecting block 15 is movably installed in the first clamping groove 20, a strip-shaped groove 19 is formed in the upper surface of the first clamping groove 20, a second ball 27 is movably installed in the strip-shaped groove 19, fixing holes 26 are formed in the right surface of the first connecting block 15 and the right surface of the second connecting block 17, a second fixing bolt 23 is fixedly installed at the front end of the right surface of the positioning block 6, a first fixing bolt 22 is fixedly installed at the rear end of the right surface of the positioning block 6, a first limiting block 21 is fixedly installed at the front end of the right surface of the first connecting block 15, a second limiting block 25 is fixedly installed at the rear end of the right surface of the second connecting block 17, the second stopper 25 and the first stopper 21 prevent the first connecting block 15 and the second connecting block 17 from falling off in the first engaging groove 20 and the second engaging groove 24.

The second balls 27 are provided with a plurality of groups, the groups of second balls 27 are uniformly distributed on the upper surfaces of the first clamping groove 20 and the second clamping groove 24, so as to assist the movement of the first connecting block 15 and the second connecting block 17, eight groups of fixing holes 26 are arranged in a common mode, four groups of fixing holes 26 are arranged on the right surface of the first connecting block 15, the rest four groups of fixing holes 26 are arranged on the right surface of the second connecting block 17, the first connecting block 15, the second connecting block 17 and the positioning block 6 are movably connected through the second balls 27, the first connecting block 15 and the positioning block 6 are fixedly connected through the first fixing bolts 22 and the fixing holes 26 in a mutually matched mode, and the second connecting block 17 and the positioning block 6 are movably connected through the second fixing bolts 23 and the fixing holes 26 in a mutually matched mode.

In this embodiment, by screwing the first fixing bolt 22 and the second fixing bolt 23, the first fixing bolt 22 and the second fixing bolt 23 are separated from the fixing hole 26, and then the first connecting block 15 and the second connecting block 17 are pushed slowly, the first connecting block 15 and the second connecting block 17 slide easily under the action of a plurality of groups of second balls 27 at the bottom, so as to reduce the friction force between the first connecting block 15 and the positioning block 6, after the first connecting block 15 and the second connecting block 17 are adjusted to proper positions, the first fixing bolt 22 and the second fixing bolt 23 are screwed, the first fixing bolt 22 and the second fixing bolt 23 are fixed in the two groups of fixing holes 26, and then the first connecting block 15 and the second connecting block 17 after being adjusted are fixed, the clamping area of the positioning block 6 is effectively increased by the first connecting block 15 and the second connecting block 17 after being adjusted, make the stability of locating piece 6 when the great machined part of centre gripping further increase, avoided great machined part because the great centre gripping location that leads to of volume is unstable, the deviation appears in the in-process of processing the time polishing, and then influences the efficiency of enterprise's production and processing.

Example 2

Referring to fig. 1, 2, 4 and 5, the rear end of the adjusting knob 2 is fixedly provided with a first connecting sleeve 29, the first adjusting rods 12 are provided with four groups, the bottom of the supporting column 4 is fixedly provided with a first limiting block 21, the supporting column 4 is slidably connected with the base 1 through a first limiting chute 3 and a first limiting clamping block 28, and the supporting column 4 is fixedly connected with the base 1 through two groups of first adjusting rods 12; the supporting column 4 is fixed under the action of the two groups of first adjusting rods 12, a third limiting fixture block 31 is fixedly installed at the bottom of the sliding block 9, the third limiting fixture block 31 ensures that the sliding block 9 cannot fall off from the third limiting sliding groove 11, and the sliding block 9 is movably connected with the supporting column 4 through the third limiting fixture block 31 and the third limiting sliding groove 11; seted up first spacing hole 30 on the slider 9, seted up the spacing hole 33 of second on the spacing spout 11 of third, the inside movable mounting in the spacing hole 33 of second has spacing post 32, through the fixed connection that mutually supports of first spacing hole 30, spacing hole 33 of second and spacing post 32 between slider 9 and the support column 4: each group of third limiting sliding grooves 11 is provided with a plurality of groups of second limiting holes 33, and the sliding block 9 is provided with two groups of first limiting holes 30; the upper surface of the bearing cross beam 5 is provided with a second limiting sliding groove 8, first balls 18 are movably mounted inside the second limiting sliding groove 8, a plurality of groups of the first balls 18 are arranged, a second limiting fixture block 16 is fixedly mounted at the bottom of the positioning block 6, and the positioning block 6 and the bearing cross beam 5 are movably connected through the mutual matching of the second limiting sliding groove 8, the second limiting fixture block 16 and the plurality of groups of the first balls 18; the first balls 18 effectively reduce friction between the positioning blocks 6 and the bearing beam 5, two groups of positioning blocks 6 are convenient to move, the positioning blocks 6 are provided with two groups, the outer side of each group of positioning blocks 6 is fixedly connected with a group of second adjusting rods 10, and each group of positioning blocks 6 is fixedly connected with the bearing beam 5 through a group of second adjusting rods 10.

In the embodiment, by screwing the adjusting knob 2 on the base 1, the adjusting knob 2 slowly moves towards the inner side of the base 1 under the action of the threaded hole 13, each group of supporting columns 4 is controlled by two groups of adjusting knobs 2, meanwhile, the supporting columns 4 are screwed to change and fix the positions of the supporting columns 4 by using the two groups of adjusting knobs 2, the other group of supporting columns 4 are screwed and moved by the same method, so that the two groups of supporting columns 4 are positioned on a horizontal line to be convenient for fixing a workpiece, the two groups of movable supporting columns 4 can adjust the workpiece on the positioning block 6 and the positioning block 6 back and forth, then, the two groups of limiting columns 32 on the inner wall of the sliding block 9 are taken down to push the sliding block 9, so that the sliding block 9 slides to a proper position in the third limiting sliding chute 11, and the two groups of limiting columns 32 are remounted in the first limiting hole 30 and the second limiting hole 33 to fix the sliding block 9, the looseness of the sliding blocks 9 in the using process is avoided, the two groups of movable sliding blocks 9 can adjust the height of the positioning blocks 6 and the workpieces on the positioning blocks 6 up and down, then the two groups of second adjusting rods 10 are screwed to control the two groups of positioning blocks 6 and the workpieces on the positioning blocks 6 to slide towards the middle, the two groups of positioning blocks 6 can be guaranteed to be stable under the action of the second limiting clamping blocks 16, the two groups of second adjusting rods 10 can be screwed easily under the action of the first ball 18, the workpieces are fixed between the two groups of positioning blocks 6, the two groups of movable positioning blocks 6 can adjust the left and right positions of the positioning blocks 6 and the workpieces on the positioning blocks 6, the scheme can adjust the workpieces on the positioning blocks 6 and the workpieces on the positioning blocks 6 up and down, left and right and back and forth movement, and the positioning device can be conveniently butted with external polishing devices and the like, thereby facilitating the work of devices such as blade turning and the like.

Example 3

Referring to fig. 1 and 6, the base 1 is provided with a slide rail inside to facilitate the sliding of the recycling bin 14, the front surface of the recycling bin 14 is fixedly provided with a handle 34 to facilitate the use of an operator, the upper surface of the recycling bin 14 is provided with a groove 35, and the recycling bin 14 is movably connected with the base 1 through the slide rail.

In this embodiment, the piece that processing was polished falls into collection box 14, and staff pulling handle 34, and then takes out the inside piece of collection box 14, and the metal piece that polishes down is favorable to the recovery of resource to be recycled, has avoided metal piece to scatter on positioner and outside machine, influences the normal use of machine.

The working principle is as follows: when the invention is used, firstly, through the size of a machined part and the position of a machining cutter, four groups of adjusting knobs 2 are screwed, two groups of supporting columns 4 are fixed at proper positions under the action of a threaded hole 13 and a first connecting sleeve 29, then the limiting columns 32 behind two groups of sliding blocks 9 are respectively drawn out, the two groups of sliding blocks 9 are respectively slid to proper positions, the limiting columns 32 are re-fixed in a first limiting hole 30 and a second limiting hole 33, the sliding blocks 9 are fixed, then a first fixing bolt 22 and a second fixing bolt 23 are screwed, a first connecting block 15 and a second connecting block 17 are respectively slid outwards, the first connecting block 15 and the second connecting block 17 are respectively slid to proper positions outwards under the action of a second ball 27 at the bottom, then the first fixing bolt 22 and the second fixing bolt 23 are continuously screwed, so that the first fixing bolt 22 and the second fixing bolt 23 are respectively fixed in a group of fixing holes 26, and then fix first connecting block 15 and second connecting block 17 on locating piece 6, the machined part that will process afterwards is placed on two sets of locating pieces 6, it promotes two sets of locating pieces 6 to twist two sets of second regulation poles 10, locating piece 6 moves slowly under the effect of the first ball 18 of bottom, fix together under the effect of two sets of second regulation poles 10 at last, and then it is fixed with the machined part, open the cutter of polishing afterwards or turn round and polish the machined part, the piece of polishing enters into collection box 14, after polishing the completion, pulling handle 34, take out collection box 14, clear up the inside piece of collection box 14, pack into the normal position with collection box 14 afterwards, high convenience and rapidness in use.

The invention relates to a positioning device for machining, which comprises the following steps:

the method comprises the following steps: firstly, adjusting the positions of two groups of supporting columns 4 through an adjusting knob 2, then adjusting the positions of two groups of sliding blocks 9 and fixing again, then screwing a first fixing bolt 22 and a second fixing bolt 23 according to the size of a workpiece to adjust the clamping area of a positioning block 6, and fixing the first fixing bolt 22 and the second fixing bolt 23 in a fixing hole 26 again;

step two: placing a workpiece to be polished between the two groups of positioning blocks 6, screwing the two groups of second adjusting rods 10, and fixing the workpiece between the two groups of positioning blocks 6;

step three: the external tool or the rotary head is opened to polish the workpiece, and after polishing is completed, the workpiece is taken down, the recycling bin 14 is pulled out to clean up the chips inside the recycling bin 14, and the recycling bin 14 is put back to the original position.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A positioner for machining, includes base (1), its characterized in that: the adjustable support is characterized in that an adjusting knob (2) is fixedly mounted on the left side of the front surface of the base (1), a threaded hole (13) is formed in the right side of the front surface of the base (1), a recovery box (14) is movably mounted in the middle of the upper surface of the base (1), a first adjusting rod (12) is fixedly mounted on the right side of the upper surface of the base (1), a first limiting sliding groove (3) is formed in the left side of the upper surface of the base (1), a supporting column (4) is movably mounted in the first limiting sliding groove (3), a third limiting sliding groove (11) is formed in the front surface of the supporting column (4), a sliding block (9) is movably mounted on the inner wall of the third limiting sliding groove (11), a second adjusting rod (10) is fixedly mounted on the outer wall of the sliding block (9), a second connecting sleeve (7) is fixedly mounted on the inner side of the second adjusting rod (10), and a bearing cross beam (5) is fixedly welded on the inner side of the sliding block (9), the bearing beam is characterized in that a positioning block (6) is fixedly mounted on the inner side of the bearing beam (5), a second clamping groove (24) is formed in the front end of the upper surface of the positioning block (6), a second connecting block (17) is movably mounted on the inner wall of the second clamping groove (24), a first clamping groove (20) is formed in the rear end of the upper surface of the positioning block (6), a first connecting block (15) is movably mounted inside the first clamping groove (20), a strip-shaped groove (19) is formed in the upper surface of the first clamping groove (20), a second ball (27) is movably mounted inside the strip-shaped groove (19), fixing holes (26) are formed in the right surface of the first connecting block (15) and the right surface of the second connecting block (17), a second fixing bolt (23) is fixedly mounted at the front end of the right surface of the positioning block (6), and a first fixing bolt (22) is fixedly mounted at the rear end of the right surface of the positioning block (6), the front end fixed mounting of first connecting block (15) right side surface has first stopper (21), the rear end fixed mounting of second connecting block (17) right side surface has second stopper (25).

2. A positioning device for machining according to claim 1, characterized in that: the improved structure of the bearing is characterized in that a plurality of groups of second balls (27) are arranged on the upper surfaces of the first clamping groove (20) and the second clamping groove (24), the groups of second balls (27) are uniformly distributed on the upper surfaces of the first clamping groove (20) and the second clamping groove (24), eight groups of fixing holes (26) are arranged on the right surfaces of the first connecting block (15), the other four groups of fixing holes (26) are arranged on the right surfaces of the second connecting block (17), the first connecting block (15), the second connecting block (17) and the positioning block (6) are movably connected through the second balls (27), the first connecting block (15) and the positioning block (6) are fixedly connected through the first fixing bolt (22) and the fixing hole (26) in a mutually matched mode, and the second connecting block (17) and the positioning block (6) are movably connected through the second fixing bolt (23) and the fixing hole (26) in a mutually matched mode.

3. A positioning device for machining according to claim 1, characterized in that: the rear end fixed mounting of adjust knob (2) has first connecting sleeve (29), first regulation pole (12) set up four groups altogether, the bottom fixed mounting of support column (4) has first spacing fixture block (28), through first spacing spout (3) and first spacing fixture block (28) sliding connection between support column (4) and base (1), through two sets of first regulation pole (12) fixed connection between support column (4) and base (1).

4. A positioning device for machining according to claim 1, characterized in that: the bottom of slider (9) is fixed mounting has third spacing fixture block (31), through third spacing fixture block (31) and third spacing spout (11) swing joint between slider (9) and support column (4).

5. A positioning device for machining according to claim 1, characterized in that: first spacing hole (30) have been seted up on slider (9), the spacing hole of second (33) has been seted up on third spacing spout (11), the inside movable mounting in the spacing hole of second (33) has spacing post (32), mutually support fixed connection through first spacing hole (30), spacing hole of second (33) and spacing post (32) between slider (9) and support column (4).

6. A positioning device for machining according to claim 1, characterized in that: a plurality of groups of second limiting holes (33) are formed in each group of third limiting sliding grooves (11), and two groups of first limiting holes (30) are formed in the sliding block (9).

7. A positioning device for machining according to claim 1, characterized in that: the utility model discloses a bearing beam, including bearing beam (5), the upper surface of bearing beam (5) has seted up spacing spout of second (8), the inside movable mounting of the spacing spout of second (8) has first ball (18), first ball (18) are provided with a plurality of groups altogether, the bottom fixed mounting of locating piece (6) has spacing fixture block of second (16), through the first ball of the spacing spout of second (8), spacing fixture block of second (16) and a plurality of groups (18) the swing joint that mutually supports between locating piece (6) and bearing beam (5).

8. A positioning device for machining according to claim 1, characterized in that: the positioning blocks (6) are arranged in two groups, the outer side of each group of positioning blocks (6) is fixedly connected with one group of second adjusting rods (10), and each group of positioning blocks (6) is fixedly connected with the bearing cross beam (5) through one group of second adjusting rods (10).

9. A positioning device for machining according to claim 1, characterized in that: the novel recycling bin is characterized in that a sliding rail is arranged inside the base (1), a handle (34) is fixedly mounted on the front surface of the recycling bin (14), a groove (35) is formed in the upper surface of the recycling bin (14), and the recycling bin (14) is movably connected with the base (1) through the sliding rail.