CN214292082U

CN214292082U - Clamp for eccentric shaft square milling

Info

Publication number: CN214292082U
Application number: CN202120253890.2U
Authority: CN
Inventors: 周剑锋; 严龙
Original assignee: Changsha Zhongyun Machinery Equipment Manufacturing Co ltd
Current assignee: Changsha Zhongyun Machinery Equipment Manufacturing Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-28
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses an eccentric shaft mills side and uses anchor clamps, including the installation base, the semicircular opening of a plurality of is seted up to the upper end of installation base, and installs the inboard rectangle recess of seting up of base upper end semi-circular opening to be equipped with the eccentric shaft fixing base in the installation base upper end semi-circular opening, the outer wall of installation base is equipped with base fixing bolt, and installs the base outer wall and set up the screw hole that is linked together with rectangle recess inside to the threaded hole of installation base outer wall is equipped with fixture block fixed screw, the screw mounting hole has been seted up to the upper end of installation base, and the inside of screw mounting hole is equipped with clamp plate fixed screw to the outside cover of clamp plate fixed screw is equipped with the work piece clamp plate, work piece clamp plate lower extreme is equipped with a plurality of work piece limiting plate. This eccentric shaft mills side and uses anchor clamps inboard to be equipped with the fixed knot of different grade type to construct, and the device can be quick change simultaneously, and the maintenance of improve equipment changes efficiency, and the person of facilitating the use uses.

Description

Clamp for eccentric shaft square milling

Technical Field

The utility model relates to a numerical control machining center technical field specifically is an eccentric shaft mills side and uses anchor clamps.

Background

The workpiece with the excircle parallel to the axis of the excircle and not coincident with the axis of the excircle is called an eccentric shaft. The eccentric shaft is usually fixed on the rotating shaft of the motor through an eccentric hole, and when the motor is started, the eccentric shaft makes a cam motion. Therefore, the composite material is widely applied to automobiles, engines, pumps and the like.

The fixture tool of the existing eccentric shaft can only fix one workpiece once, so that the machining efficiency is relatively low, meanwhile, when the eccentric shafts with different appearances are fixed, the inner side fixing structure of the fixture can be unmatched, the fixture fixing structure needs to be replaced, and the fixture is relatively complex to disassemble and inconvenient to maintain in the later stage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eccentric shaft mills side and uses anchor clamps to solve the anchor clamps frock of the eccentric shaft that proposes in the background art and once can only fix a work piece, machining efficiency is more slow like this, is fixing the eccentric shaft of carrying out different appearances simultaneously, and the unmatched condition can appear in the inboard fixed knot of anchor clamps structure, needs to change anchor clamps fixed knot structure, and anchor clamps are dismantled more loaded down with trivial details, inconvenient later maintenance's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an eccentric shaft mills side and uses anchor clamps, includes the installation base, the upper end of installation base is equipped with a plurality of eccentric shaft fixing base for place a plurality of eccentric shafts simultaneously, the outer wall of installation base is equipped with base fixing bolt, the screw mounting hole has been seted up to the upper end of installation base, and the inside of screw mounting hole is equipped with clamp plate fixed screw, and the outside cover of clamp plate fixed screw is equipped with the work piece clamp plate, and work piece clamp plate and eccentric shaft fixing base enclose to close the chamber of placing that forms eccentric shaft screw thread end, and then carry out spacing fixed to the eccentric shaft.

Preferably, the inner side of the eccentric shaft fixing seat is provided with a workpiece positioning block, the workpiece positioning block is matched with the square groove at the threaded end of the eccentric shaft to position the eccentric shaft, the eccentric shaft is effectively prevented from rotating in the eccentric shaft fixing seat, and the width of the eccentric shaft fixing seat is equal to that of the mounting base.

The lower end of the workpiece pressing plate is provided with a plurality of workpiece limiting plates, the positions of the workpiece limiting plates below the workpiece pressing plate correspond to the positions of the eccentric shaft fixing seats on the mounting base, and the workpiece limiting plates and the eccentric shaft fixing seats are enclosed to form an annular placing cavity of the threaded end of the eccentric shaft, so that the eccentric shaft is limited and fixed.

Preferably, the number of the workpiece limiting plates is at least 6, preferably 4-10.

The mounting base and the eccentric shaft fixing base are of an integrally formed structure, and the cross section of the eccentric shaft fixing base is semicircular.

The upper end of the mounting base is provided with a plurality of semicircular openings, rectangular grooves are formed in the inner sides of the semicircular openings in the upper end of the mounting base, the outer wall of the mounting base is provided with threaded holes communicated with the interiors of the rectangular grooves, fixture block fixing screws are arranged in the threaded holes in the outer wall of the mounting base, rectangular fixing base fixture blocks are fixed at the lower end of the eccentric shaft fixing base, and the fixing base fixture blocks are placed in the rectangular grooves of the mounting base; the outer ring of the eccentric shaft fixing seat is provided with a fixing seat limiting block,

preferably, the inner shape of the upper opening of the mounting base is matched with the outer shapes of the eccentric shaft fixing seat and the fixing seat limiting block.

Preferably, the external shape of the fixture block of the fixing seat is matched with the internal shape of the rectangular groove on the inner side of the opening above the mounting base, and the outer wall of the fixture block of the fixing seat is provided with a threaded hole corresponding to the position of the fixture block fixing screw.

Preferably, the outer part of the fixed seat limiting block is arc-shaped, and the fixed seat limiting block is symmetrically distributed around the central line of the eccentric shaft fixed seat.

Compared with the prior art, the beneficial effects of the utility model are that: the clamp for milling the eccentric shaft is provided with a plurality of eccentric shaft fixing seats, so that the device can fix a plurality of workpieces, the using amount of eccentric shaft processing clamps is reduced, and the purpose of simultaneously processing a plurality of eccentric shafts is achieved; and a pressing plate fixing screw is arranged between every two eccentric shaft fixing seats, so that the purpose of locking 2 eccentric shafts by one screw is realized, the workload of workers for dismounting is reduced, and the processing efficiency is improved.

This eccentric shaft mills side and uses anchor clamps inboard to be equipped with the fixed knot of different grade type to construct, and the device can be quick change simultaneously, and the maintenance of improve equipment changes efficiency, and the person of facilitating the use uses. The device's eccentric shaft fixing base inboard is equipped with the work piece locating piece, block the outside of work piece through the work piece locating piece, avoid the work piece the pivoted condition to appear, improve the fixed effect of work piece, and eccentric shaft fixing base outer lane is equipped with the fixing base stopper, fix the rigidity of eccentric shaft fixing base through the fixing base stopper, make the eccentric shaft fixing base be difficult to break away from in the opening of installation base upper end, and the fixing base fixture block of eccentric shaft fixing base lower extreme can block in the intraoral recess of installation base upper end opening, and the fixture block set screw of installation base outer wall can be fixed to the threaded hole of fixing base fixture block outer wall, increase the fixed effect of fixing base fixture block, and work piece clamp plate below is equipped with the work piece limiting plate, fix the work piece top through the work piece limiting plate, improve the fixed effect of work piece.

Drawings

Fig. 1 is a schematic structural view of a clamp for milling an eccentric shaft according to embodiment 1 of the present invention;

fig. 2 is a top view of a fixture mounting base for eccentric shaft milling in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a clamp for milling an eccentric shaft according to embodiment 2 of the present invention;

fig. 4 is a top view of a mounting base of a clamp for milling an eccentric shaft according to embodiment 2 of the present invention;

fig. 5 is the utility model discloses embodiment 2 an eccentric shaft mills side view with anchor clamps eccentric shaft fixing base.

In the figure: 1. eccentric shaft fixing base, 2, fixing base fixture block, 3, base fixing bolt, 4, installation base, 5, workpiece pressing plate, 6, pressing plate fixing screw, 7, workpiece positioning block, 8, fixture block fixing screw, 9, workpiece limiting plate, 10, fixing base limiting block, 11 and screw installation hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, the clamp for milling the eccentric shaft of the embodiment includes an installation base 4, wherein 6 eccentric shaft fixing seats 1 are arranged at the upper end of the installation base 4 and used for placing a plurality of eccentric shafts simultaneously, base fixing bolts 3 are arranged on the outer wall of the installation base 4, screw installation holes 11 are formed in the upper end of the installation base 4, pressing plate fixing screws 6 are arranged inside the screw installation holes 11, a workpiece pressing plate 5 is sleeved outside the pressing plate fixing screws 6, the workpiece pressing plate 5 and the eccentric shaft fixing seats 1 are enclosed to form a placing cavity of a threaded end of the eccentric shaft, and therefore the eccentric shaft is limited and fixed.

The inner side of the eccentric shaft fixing seat 1 is provided with a workpiece positioning block 7, the workpiece positioning block 7 is matched with a square groove at the threaded end of the eccentric shaft to position the eccentric shaft, the eccentric shaft is effectively prevented from rotating in the eccentric shaft fixing seat 1, and the width of the eccentric shaft fixing seat 1 is equal to that of the mounting base 4.

The lower end of the workpiece pressing plate 5 is provided with a plurality of workpiece limiting plates, the positions of the workpiece limiting plates below the workpiece pressing plate 5 correspond to the positions of the eccentric shaft fixing seats 1 on the mounting base 4, and the workpiece limiting plates and the eccentric shaft fixing seats 1 enclose an annular placing cavity forming a threaded end of the eccentric shaft, so that the eccentric shaft is limited and fixed.

The number of the workpiece limiting plates is 6.

The mounting base 4 and the eccentric shaft fixing base 1 are of an integrally formed structure, and the cross section of the eccentric shaft fixing base 1 is semicircular.

The working principle of the clamp for milling the eccentric shaft of the embodiment is as follows:

when the clamp for milling the eccentric shaft is used, firstly, the mounting base 4 of the device is fixed on a machine tool for processing through the base fixing bolt 3, then, the square groove at the threaded end of the eccentric shaft is aligned to the workpiece positioning block 7, the eccentric shaft is placed on the eccentric shaft fixing base 1, then the workpiece pressing plate 5 is placed on the eccentric shaft fixing base 1, then the pressing plate fixing screw 6 penetrates through the workpiece pressing plate 5 and is screwed into the screw mounting hole 11 of the mounting base 4, so that the workpiece pressing plate 5 outside the pressing plate fixing screw 6 is tightly clamped above the eccentric shaft workpiece, the workpiece is fixed, meanwhile, the workpiece positioning block 7 at the inner side of the eccentric shaft fixing base 1 can fix the position of the workpiece, the workpiece is prevented from rotating, and the device is provided with a plurality of eccentric shaft fixing bases 1, therefore, the device can fix a plurality of workpieces, and improves the processing efficiency, thereby completing a series of works.

Example 2

Referring to fig. 3-5, the present embodiment provides the following technical solutions: a clamp for milling a square eccentric shaft comprises an installation base 4, wherein the upper end of the installation base 4 is provided with a plurality of semicircular openings, the inner sides of the semicircular openings at the upper end of the installation base 4 are provided with rectangular grooves, eccentric shaft fixing seats 1 are arranged in the semicircular openings at the upper end of the installation base 4, the outer wall of the installation base 4 is provided with base fixing bolts 3, the outer wall of the installation base 4 is provided with threaded holes communicated with the inner parts of the rectangular grooves, fixture block fixing screws 8 are arranged in the threaded holes at the outer wall of the installation base 4, the inner shapes of the openings at the upper part of the installation base 4 are matched with the outer shapes of the eccentric shaft fixing seats 1 and fixing seat limiting blocks 10, the openings at the upper part of the installation base 4 of the structure play a role of accommodating the eccentric shaft fixing seats 1 and the fixing seat limiting blocks 10, the positions of the eccentric shaft fixing seats 1 are fixed, and workpieces are fixed through the eccentric shaft fixing seats 1, the upper end of the installation base 4 is provided with a screw installation hole 11, a pressure plate fixing screw 6 is arranged inside the screw installation hole 11, a workpiece pressure plate 5 is sleeved outside the pressure plate fixing screw 6, the lower end of the workpiece pressure plate 5 is provided with a plurality of workpiece limiting plates 9, at least 6 workpiece limiting plates 9 are arranged, the positions of the workpiece limiting plates 9 below the workpiece pressure plate 5 correspond to the positions of the eccentric shaft fixing seats 1 on the installation base 4, the workpiece limiting plates 9 of the structure can move along with the workpiece pressure plate 5, the workpiece limiting plates 9 can be pressed above the workpiece to fix the upper part of the workpiece, the contact area between the workpiece limiting plates 9 and the workpiece is larger, the fixing effect of the workpiece is improved, the outer ring of the eccentric shaft fixing seat 1 is provided with a fixing seat limiting block 10, the lower end of the eccentric shaft fixing seat 1 is fixed with a rectangular fixing seat clamping block 2, and the inner side of the eccentric shaft fixing seat 1 is provided with a workpiece positioning block 7, the width of the eccentric shaft fixing seat 1 is equal to that of the mounting base 4, a workpiece positioning block 7 on the inner side of the eccentric shaft fixing seat 1 of the structure can be clamped outside a workpiece, the workpiece is fixed through the workpiece positioning block 7, the situation that the workpiece automatically rotates is avoided, the outer shape of a fixing seat clamping block 2 is matched with the inner shape of a groove on the inner side of an opening on the upper side of the mounting base 4, a threaded hole corresponding to the position of a clamping block fixing screw 8 is formed in the outer wall of the fixing seat clamping block 2, the fixing seat clamping block 2 of the structure can be completely clamped in the groove on the inner side of the opening on the upper side of the mounting base 4, meanwhile, the fixing seat clamping block 2 is connected with the clamping block fixing screw 8, the fixing seat clamping block 2 is fixed through the clamping block fixing screw 8, the fixing effect of the fixing seat clamping block 2 and the eccentric shaft fixing seat 1 is improved, the outer part of the fixing seat limiting block 10 is arc-shaped, and the fixing seat limiting blocks 10 are symmetrically distributed about the central line of the eccentric shaft fixing seat 1, the fixing base limiting block 10 of this structure makes the outside of eccentric shaft fixing base 1 form unsmooth shape, makes the eccentric shaft fixing base 1 be difficult to the condition that the displacement appears, improves eccentric shaft fixing base 1's the effect that sets up.

The working principle is as follows: when the clamp for milling the eccentric shaft is used, firstly, the mounting base 4 of the device is fixed on a processed machine tool through the base fixing bolt 3, then the fixing base clamping block 2 below the eccentric shaft fixing base 1 is clamped in the groove in the opening above the mounting base 4, meanwhile, the eccentric shaft fixing base 1 is completely embedded in the opening above the mounting base 4, then the clamping block fixing screw 8 is screwed, the position of the fixing base clamping block 2 is fixed through the clamping block fixing screw 8, thus, the lower part of the eccentric shaft fixing base 1 can be fixed by the fixing base clamping block 2, meanwhile, the fixing base limiting block 10 outside the eccentric shaft fixing base 1 increases the connecting effect between the outer ring of the eccentric shaft fixing base 1 and the mounting base 4 through the fixing base limiting block 10, so that the eccentric shaft fixing base 1 is not easy to be separated from the opening above the mounting base 4, and finally, the pressing plate fixing screw 6 is screwed, make the outside work piece pressing plate 5 of clamp plate set screw 6 can remove the top of work piece, work piece top is fixed through work piece limiting plate 9 of work piece pressing plate 5 below, and work piece limiting plate 9 is bigger with work piece area of contact, the fixed effect of work piece is increased, the inboard work piece locating piece 7 of eccentric shaft fixing base 1 can fix the work piece position simultaneously, avoid the automatic pivoted condition to appear in the work piece, and the device is provided with a plurality of eccentric shaft fixing bases 1, the device can carry out the fixed of a plurality of work pieces like this, the efficiency of processing is improved, thereby accomplish a series of work.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an eccentric shaft mills side and uses anchor clamps, includes installation base (4), its characterized in that: the upper end of the installation base (4) is provided with a plurality of eccentric shaft fixing seats (1), the outer wall of the installation base (4) is provided with base fixing bolts (3), the upper end of the installation base (4) is provided with screw installation holes (11), pressing plate fixing screws (6) are arranged inside the screw installation holes (11), and workpiece pressing plates (5) are sleeved outside the pressing plate fixing screws (6).

2. The eccentric shaft squaring fixture of claim 1, wherein: the inner side of the eccentric shaft fixing seat (1) is provided with a workpiece positioning block (7), and the width of the eccentric shaft fixing seat (1) is equal to that of the mounting base (4).

3. The eccentric shaft squaring fixture of claim 1, wherein: the lower end of the workpiece pressing plate (5) is provided with a plurality of workpiece limiting plates (9), and the positions of the workpiece limiting plates (9) below the workpiece pressing plate (5) correspond to the positions of the eccentric shaft fixing seats (1) on the mounting base (4).

4. The eccentric shaft squaring fixture of claim 3, wherein: the number of the workpiece limiting plates (9) is at least 6.

5. The clamp for milling the eccentric shaft according to any one of claims 1 to 4, wherein: the mounting base (4) and the eccentric shaft fixing seat (1) are of an integrally formed structure, and the cross section of the eccentric shaft fixing seat is semicircular.

6. The eccentric shaft squaring fixture of claim 1, wherein: a rectangular groove is formed in the inner side of a semicircular opening in the upper end of the mounting base (4), a threaded hole communicated with the inside of the rectangular groove is formed in the outer wall of the mounting base (4), and a fixture block fixing screw (8) is arranged in the threaded hole in the outer wall of the mounting base (4); the lower end of the eccentric shaft fixing seat (1) is provided with a rectangular fixing seat clamping block (2), and the fixing seat clamping block (2) is placed in a rectangular groove of the mounting base (4); and the outer ring of the eccentric shaft fixing seat (1) is provided with a fixing seat limiting block (10).

7. The eccentric shaft squaring fixture of claim 6, wherein: the inner shape of an opening above the mounting base (4) is matched with the outer shapes of the eccentric shaft fixing seat (1) and the fixing seat limiting block (10).

8. The eccentric shaft squaring fixture of claim 6, wherein: the external shape of the fixing seat clamping block (2) is matched with the internal shape of the rectangular groove on the inner side of the upper opening of the mounting base (4), and the outer wall of the fixing seat clamping block (2) is provided with a threaded hole corresponding to the position of the clamping block fixing screw (8).

9. The eccentric shaft squaring fixture of claim 6, wherein: the outer part of the fixing seat limiting block (10) is arc-shaped, and the fixing seat limiting block (10) is symmetrically distributed around the central line of the eccentric shaft fixing seat (1).