CN215903113U

CN215903113U - Clamp for machining of machine tool speed changing box

Info

Publication number: CN215903113U
Application number: CN202122177837.1U
Authority: CN
Inventors: 何明松; 陈文�; 陈小刚; 杜建设; 彭开亮; 杨本建
Original assignee: Chengdu Minghao Machinery Manufacturing Co ltd
Current assignee: Chengdu Minghao Machinery Manufacturing Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-25
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a clamp for machining a machine tool speed changing box machine, which comprises a placing table and a clamp holder shell, wherein a rubber pad used for protecting an article to be machined is arranged at the top of the placing table, an adjusting mechanism used for adjusting a clamping distance is arranged on the placing table, a pressure plate is arranged in the clamp holder shell, a first opening communicated with the interior of the clamp holder shell is arranged at the top of the clamp holder shell, a plurality of second openings communicated with the interior of the clamp holder shell are arranged at the bottom of the clamp holder shell, the first opening is connected with a pressing mechanism used for pressing the pressure plate, and the second mounting hole is connected with a clamping mechanism used for clamping the speed changing box machine. The oblique angle design between the pressure plate and the abutting column realizes that all points of an object with an uneven surface are stressed uniformly when the object is clamped, prevents the surface of the object from being damaged due to centralized acceptance of the convex part on the surface of the clamped object, and is convenient to use because the length, the height and the position of the clamping can be adjusted.

Description

Clamp for machining of machine tool speed changing box

Technical Field

The utility model relates to the technical field of machining of machine tool speed changing boxes, in particular to a clamp for machining of machine tool speed changing boxes.

Background

The machine tool speed changing box machine is a mechanism for changing the main movement speed (such as main shaft rotation speed, reciprocating stroke number per minute of a workbench and the like) of a machine tool, and is used for changing the torque, the rotation speed and the movement direction transmitted from a driving shaft to a driven shaft according to different working conditions. Geared gearboxes generally consist of a housing and a number of gear pairs.

Under the general condition, will process the case machine tool speed change case machine, need use special anchor clamps to fix it on the workstation, increase stability, avoid the object to make a round trip to rock, lead to the processing to be difficult to go on, anchor clamps all comprise two splint among the prior art, adjust the distance between two splint and press from both sides the object tight, but to the object of this kind of surperficial unevenness of gearbox casing, main stress point all is in the bellied part in case shell surface when the centre gripping, very easily lead to the case shell impaired, it is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that an object is easily damaged due to uneven stress on the surface of the object during clamping in the prior art, and provides a clamp for machining a machine tool speed changing box.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an anchor clamps for processing of lathe speed changing box machine, is including placing platform and holder shell, it is equipped with the adjustment mechanism who is used for adjusting the centre gripping distance to place the bench, be equipped with the pressure disk in the holder shell, holder shell top is equipped with the first trompil rather than inside being linked together, and the bottom is equipped with a plurality of second trompils rather than inside being linked together, first trompil is connected with and is used for supporting the pressure mechanism that presses to the pressure disk, the second trompil is connected with and is used for carrying out the fixture of centre gripping to the speed changing box machine.

Preferably, adjustment mechanism is including locating the fluting of placing the bench, the fluting inside wall is equipped with the spout of two relative settings, and two spout tops all are equipped with the spacing hole that a plurality of equidistance set up, two the common sliding connection of spout inside wall has two sliders, be equipped with the screw hole on the slider, and the equal fixedly connected with in both ends and the spacing post that spacing hole is corresponding, screw hole inside wall threaded connection has the screw thread post, the screw thread post passes through the connecting rod and is connected with the rotation of holder shell.

Preferably, a friction pad is arranged at the joint of the threaded column and the connecting rod.

Preferably, support the pressing mechanism include with first trompil inside wall fixed connection's thread bush, the inside wall threaded connection of thread bush has the threaded rod, the threaded rod is located the inside one end fixedly connected with of holder shell and supports the briquetting, is located the outside one end fixedly connected with dwang of holder shell, support briquetting bottom and pressure disk top counterbalance.

Preferably, fixture include with second trompil inside wall sliding connection support the pressure post, support pressure post lateral wall fixedly connected with lantern ring, be connected with the spring between lantern ring and the holder shell, support pressure post top and pressure disk bottom and offset.

Preferably, the pressure disk top is the plane, and the bottom is the toper setting, support the inside one end of pressing the post to be located the holder shell and set up for the slope, and corresponding with pressure disk bottom toper, the one end that supports the post to be located the holder shell is the hemisphere.

Preferably, the top of the placing table is provided with a rubber pad for protecting the object to be processed.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the placing table, the holder shell, the pressure plate, the pressure column, the pressure block and the threaded rod are used in a matched manner, so that the problem that the outer protruding part of the gearbox shell is easily damaged due to uneven stress during machining and clamping of the gearbox shell of the machine tool in the prior art is solved, the stress is concentrated on the protruding part of the gearbox shell when the clamping plate clamp clamps the gearbox shell, and meanwhile, the rubber pad on the placing table further protects the gearbox shell, so that the condition of damage to articles during machining is reduced, and the use is convenient.

2. The utility model can adjust the height, length and clamping angle of the clamp at will by matching the open slot, the sliding groove, the limiting hole, the sliding column, the limiting column and the threaded column connecting rod, is beneficial to processing the gearbox casings with different sizes and shapes, and can ensure that the transverse displacement can not occur in the clamping state by matching the limiting column and the limiting hole, thereby ensuring the clamping stability and being convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of an appearance of a fixture for machining a machine tool gearbox according to the present invention;

FIG. 2 is a perspective view of the holder housing and its interior;

fig. 3 is a front view of the holder housing and its interior.

In the figure: 1. a placing table; 2. a holder housing; 3. a platen; 4. grooving; 5. a chute; 6. a limiting hole; 7. a slider; 8. a limiting column; 9. a threaded post; 10. a connecting rod; 11. a threaded sleeve; 12. a threaded rod; 13. a pressing block; 14. rotating the rod; 15. a spring; 16. and pressing the column.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, a fixture for machining of a machine tool gearbox comprises a placing table 1 and a holder shell 2, wherein a rubber pad for protecting an article to be machined is arranged at the top of the placing table 1, so that damage to the gearbox shell due to scratching during machining of the machine tool gearbox is prevented, product quality is improved, and an adjusting mechanism for adjusting a clamping distance is arranged on the placing table 1.

Wherein, the adjusting mechanism comprises a slot 4 arranged on the placing table 1, the depth of the slot 4 is not less than the length of a thread column 9, which is convenient for the thread column 9 to adjust up, down, left and right in the inner part of the holding table, thereby adjusting the clamping range of the clamp, the inner side wall of the slot 4 is provided with two opposite sliding chutes 5, the tops of the two sliding chutes 5 are both provided with a plurality of spacing holes 6 which are arranged equidistantly, which is beneficial to the clamping of articles, the transverse displacement of a sliding block 7 is prevented, the stability of the clamping is improved, the use is convenient, the inner side walls of the two sliding chutes 5 are jointly and slidably connected with two sliding blocks 7, the sliding blocks 7 are provided with threaded holes, both ends are fixedly connected with spacing columns 8 corresponding to the spacing holes 6, the inner side wall of the threaded holes is in threaded connection with the thread column 9, the clamping height is adjusted through the rotation of the thread column 9, which is beneficial to the clamping of objects with different heights, the practicability is improved, the thread column 9 is rotatably connected with the clamp shell 2 through a connecting rod 10, the clamping position is changed by rotating the connecting rod 10, and the device is suitable for irregular-shaped objects.

Wherein, the threaded column 9 is equipped with the friction pad with connecting rod 10 junction, increases the rotatory frictional force between threaded column 9 and the connecting rod 10, prevents that connecting rod 10 position skew under the artificial condition when the anchor clamps use.

Be equipped with pressure disk 3 in the holder shell 2, the holder shell 2 top is equipped with the first trompil rather than inside being linked together, and the bottom is equipped with a plurality of second trompils rather than inside being linked together, and first trompil is connected with and is used for pressing the mechanism that supports that presses pressure disk 3.

Wherein, support the pressing means include with first trompil inside wall fixed connection's

thread bush

11, 11 inside wall threaded connection of thread bush has threaded rod 12, adjust support 13 through rotating threaded rod 12 and push down the distance, threaded rod 12 is located the inside one end fixedly connected with of holder shell 2 and supports pressing piece 13, support 13 bottom is level and smooth, be located the outside one end fixedly connected with dwang 14 of holder shell 2, increase the moment when rotating dwang 14, it is more laborsaving when making adjusting threaded rod 12 high, support 13 bottom and pressure disk 3 top counterbalance.

The second opening is connected with a clamping mechanism used for clamping the speed changing box machine.

Wherein, fixture include with second trompil inside wall sliding connection support the compression leg 16, support 16 lateral walls fixedly connected with lantern rings of compression leg, be connected with spring 15 between the lantern ring and the holder shell 2, spring 15 one end and lantern ring lateral wall fixed connection, the other end and holder shell 2 interior bottom lateral wall fixed connection, support 16 tops of compression leg and pressure disk 3 bottom and offset.

Wherein, the pressure disk 3 top is the plane, and the bottom is the toper setting, supports the one end that compression leg 16 is located holder shell 2 inside and sets up for the slope, and corresponds with the toper in pressure disk 3 bottom, when pressure disk 3 pushes down, changes horizontal position according to the distance that supports compression leg 16 and move down to this ensures to have to support compression leg 16 atress even, supports the one end that compression leg 16 is located holder shell 2 outside and is the hemisphere, and the contact surface with the object is arc during the centre gripping, reduces the damage to being held the object.

The specific working principle of the utility model is as follows:

under initial condition, the machine tool gearbox casing that will process is put and is placed platform 1 on, through controlling the length that screw post 9 adjusted the centre gripping about, rotates connecting rod 10, adjusts the position of centre gripping, rotates screw post 9 respectively and makes screw post 9 drive connecting rod 10 and holder shell 2 move down, stop rotating when pressing post 16 and gearbox casing surface contact, and the initial setting is accomplished this moment.

The rotating rod 14 is rotated, the threaded rod 12 moves downwards along with the rotation of the rotating rod 14, the pressing block 13 presses the pressing plate 3 and enables the pressing plate to move downwards, the pressing column 16 is pressed when the pressing plate 3 moves downwards, the pressing column 16 moves downwards and presses the box shell tightly at the moment, the spring 15 is compressed, when the contact points of the pressing columns 16 are not consistent in height, the inclined port at the top end of the pressing column 16 is higher, the pressing plate 3 is pushed to move transversely to the lower pressing column 16, stress between the pressing columns 16 and the pressing plate 3 tends to be balanced, at the moment, the pressing columns 16 are same in pressure on the outer wall of the box shell, uniform stress is guaranteed, the box shell is prevented from being damaged, when the pressing column 16 presses the box shell tightly, the threaded column 9 drives the sliding block 7 to move upwards, the limiting column 8 is clamped into the limiting hole 6, and the sliding block 7 is prevented from moving transversely during clamping.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an anchor clamps for processing of lathe speed change case machine, is including placing platform (1) and holder shell (2), its characterized in that, it is equipped with the adjustment mechanism who is used for adjusting the centre gripping distance on platform (1) to place, be equipped with pressure disk (3) in holder shell (2), holder shell (2) top is equipped with the first trompil rather than inside being linked together, and the bottom is equipped with a plurality of second trompils rather than inside being linked together, first trompil is connected with and is used for supporting the mechanism of pressing to pressure disk (3), the second trompil is connected with and is used for carrying out the fixture of centre gripping to the speed change case machine.

2. The fixture for machining the machine tool gearbox according to claim 1, wherein the adjusting mechanism comprises a slot (4) formed in the placing table (1), two oppositely arranged sliding grooves (5) are formed in the inner side wall of the slot (4), a plurality of limiting holes (6) are formed in the tops of the two sliding grooves (5) at equal intervals, two sliding blocks (7) are connected to the inner side walls of the two sliding grooves (5) in a sliding mode, threaded holes are formed in the sliding blocks (7), limiting columns (8) corresponding to the limiting holes (6) are fixedly connected to the two ends of each sliding block, threaded columns (9) are connected to the inner side walls of the threaded holes in a threaded mode, and the threaded columns (9) are rotatably connected with the clamp holder shell (2) through connecting rods (10).

3. A clamp for machining of machine tool gear boxes according to claim 2, characterized in that the threaded columns (9) are provided with friction pads at the connection with the connecting rods (10).

4. The fixture for machining of the machine tool gearbox as claimed in claim 1, wherein the abutting mechanism comprises a threaded sleeve (11) fixedly connected with the inner side wall of the first opening, a threaded rod (12) is connected with the inner side wall of the threaded sleeve (11) in a threaded manner, a abutting block (13) is fixedly connected to one end of the threaded rod (12) located inside the clamp shell (2), a rotating rod (14) is fixedly connected to one end of the threaded rod located outside the clamp shell (2), and the bottom of the abutting block (13) abuts against the top of the pressing plate (3).

5. A clamp for machining of a machine tool gearbox according to claim 1, characterized in that the clamping mechanism comprises a pressing column (16) slidably connected with the inner side wall of the second opening, a collar is fixedly connected with the outer side wall of the pressing column (16), a spring (15) is connected between the collar and the clamp housing (2), and the top of the pressing column (16) is abutted against the bottom of the pressure plate (3).

6. A clamp for machining of a machine tool gearbox according to claim 5, characterized in that the top of the pressure plate (3) is plane and the bottom is conical, the end of the pressure column (16) inside the holder housing (2) is inclined and corresponds to the conical shape of the bottom of the pressure plate (3), and the end of the pressure column (16) outside the holder housing (2) is hemispherical.

7. The jig for machining of a machine tool gearbox as claimed in claim 1, characterized in that the top of the placing table (1) is provided with a rubber pad for protecting the object to be machined.