CN215394838U

CN215394838U - Anchor clamps for machine-building

Info

Publication number: CN215394838U
Application number: CN202121745691.XU
Authority: CN
Inventors: 张厚艳
Original assignee: Guizhou Equipment Manufacturing Vocational College
Current assignee: Guizhou Equipment Manufacturing Vocational College
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-04
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a clamp for machine manufacturing, which comprises a supporting disk, wherein a first bearing is fixed at the central position of the supporting disk, the inner ring of the first bearing is in interference fit with the rotating shaft, the outer side of the top end of the rotating shaft is fixedly sleeved with a driving disc, the top end of the driving disc is provided with three groups of arc-shaped grooves in an annular array, the sliding column is driven to slide in the arc-shaped grooves by the rotation of the driving disc, the three moving plates are driven to move simultaneously when the sliding column slides, and drives the three clamping heads to be close to the inner side wall of the workpiece and to be tightly clamped and fixed with the inner side wall of the workpiece, thereby realizing the automatic fixed clamping of the cylindrical workpiece, and the position of the clamping head can be changed along with the rotation angle of the driving disc, the structure is flexible, can be adjusted according to the inner diameter of the workpiece, has wide application range, and is convenient for clamping and fixing the cylindrical workpieces with different diameters.

Description

Anchor clamps for machine-building

Technical Field

The utility model relates to the technical field of machine manufacturing, in particular to a clamp for machine manufacturing.

Background

The mechanical manufacturing refers to the industrial sector engaged in the production of various power machines, hoisting and transporting machines, chemical machines, textile machines, machine tools, instruments, meters and other mechanical equipment, and the mechanical manufacturing industry provides technical equipment for the whole national economy.

In the process of mechanical manufacturing, when a mechanical original is processed, the original needs to be clamped and fixed by a clamp, when the existing clamp clamps and fixes a cylindrical workpiece, generally, the position of a workpiece is limited by using a positioning element, a worker needs to accurately place the workpiece into a clamp for limiting, then a locking bolt of a chuck on the clamp is screwed, the operation steps are relatively complicated, the bolt needs to be frequently screwed manually, the use efficiency of the clamp is low, but also the manual operation is relied, the time and the labor are wasted, the investment of labor cost is greatly increased, the specification of the clamp is customized according to the thickness of the machined part, the clamp has the advantages that the structure is fixed, the application range is low, and cylindrical workpieces with different diameters cannot be clamped and fixed, so that the clamp for machine manufacturing is provided.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above-mentioned problems of the related art, and an object of the present invention is to provide a jig for machine manufacturing which can automatically fix a cylindrical workpiece and has a wide application range.

In order to achieve the purpose, the utility model provides the following technical scheme: a clamp for machine manufacturing comprises a supporting disc, wherein a first bearing is fixed at the center of the supporting disc, an inner ring of the first bearing is in interference fit with a rotating shaft, a driving disc is fixedly sleeved on the outer side of the top end of the rotating shaft, and three groups of arc-shaped grooves are formed in the top end of the driving disc in an annular array; the sliding column, the sliding column is provided with threely, and three sliding column is the arc wall that the annular array slided at the driving-disc top, the bottom of sliding column is fixed with the movable plate, the supporting head is installed through the installed part to the top one end of movable plate, the bottom of movable plate is fixed with first slide rail, and the top of supporting the disc is fixed with the first slider with first slide rail sliding connection, the bottom of supporting the disc is provided with and is used for the driving-disc to carry out rotatory driving piece.

Preferably, the driving piece is including fixing the motor frame in supporting the disc bottom, driving motor is installed to the inboard of motor frame, driving motor's output is fixed with the lead screw through the shaft coupling, the second bearing has all been cup jointed at the both ends of lead screw, the outer lane block of second bearing has the bearing frame, and the top of bearing frame is fixed with the bottom of supporting the disc, the outside threaded connection of lead screw has the thread piece, one side of thread piece is fixed with the rack, one side meshing of rack is connected with drive gear, drive gear fixes in the outside of supporting disc below rotation axis, can drive the driving-disc through the driving piece and rotate, carries out displacement motion to three centre gripping head.

Preferably, a second sliding rail is fixed at the top end of the rack, a second sliding block matched with the second sliding rail is fixed at the bottom of the supporting disc, and the rack is stably moved through the sliding fit of the second sliding rail and the second sliding block.

Preferably, the installed part is including fixing the locating piece in the clamping head bottom and fixing the fixing base in movable plate top one end, the locating hole with locating piece sliding connection is seted up at the top of fixing base, the circular slot has been seted up to the inside wall symmetry of locating hole, the interior bottom of circular slot is fixed with the spring, the interior bottom one end that the circular slot was kept away from to the spring is fixed with and supports tight piece, the draw-in groove with supporting tight piece looks adaptation is all seted up to the both sides outer wall of locating piece, can make things convenient for quick installation and the change to the clamping head through the installed part for the fixed centre gripping of not unidimensional tube-shape machined part can be suitable for to anchor clamps.

Preferably, the one end that the spring was kept away from to the piece of supporting is the hemisphere setting, and fixed effect is better.

Preferably, four supporting legs are fixed to the top of the supporting disk in an annular array, and the supporting legs can play a supporting role.

Preferably, the three clamping heads are connected through an elastic rope, so that the contact area between the clamping heads and a workpiece can be increased, and the clamping stability is improved.

Compared with the prior art, the utility model has the beneficial effects that:

1. the sliding column is driven to slide in the arc-shaped groove by the rotating motion of the driving disc, the three moving plates are driven to move simultaneously during sliding, and the three clamping heads are driven to be close to the inner side wall of the workpiece and to be tightly clamped and fixed with the inner side wall of the workpiece, so that the automatic fixing and clamping of the cylindrical workpiece are realized, the positions of the clamping heads can be changed along with the rotating angle of the driving disc, the structure is flexible, the clamping heads can be adjusted according to the inner diameter of the workpiece, the application range is wide, and the cylindrical workpieces with different diameters can be clamped and fixed conveniently.

2. According to the utility model, the driving part designed at the bottom can provide power for driving the disc to rotate, manual interference is not required, the use efficiency of the clamp is higher, time and labor are saved, and the investment of labor cost is greatly reduced.

3. According to the utility model, through the designed mounting piece, the clamping head can be rapidly mounted and replaced, and the use efficiency of the clamp is further improved.

Drawings

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

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic view of the present invention from another perspective;

FIG. 4 is a schematic view of a driving member according to the present invention;

FIG. 5 is a schematic cross-sectional view of a gripping head according to the present invention;

fig. 6 is an enlarged view of the area a in fig. 5.

In the figure: 1-a support disc; 2-a first bearing; 3-a rotating shaft; 4-a drive disc; 5-arc groove; 6-a sliding column; 7-moving the plate; 8-a mounting member; 9-a clamping head; 10-a first slider; 11-a first slide rail; 12-support legs; 13-a drive member; 14-a motor frame; 15-driving the motor; 16-a screw rod; 17-a second bearing; 18-a bearing seat; 19-a threaded block; 20-a rack; 21-a drive gear; 22-a second slide rail; 23-a second slide; 24-a positioning block; 25-a fixed seat; 26-positioning holes; 27-circular groove; 28-a spring; 29-a holding block; 30-a card slot; 31-elastic cord.

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, a fixture for machine manufacturing in the drawings includes a supporting disk 1, a first bearing 2 is fixed at the center of the supporting disk 1, an inner ring of the first bearing 2 is in interference fit with a rotating shaft 3, a driving disk 4 is fixedly sleeved on the outer side of the top end of the rotating shaft 3, and three sets of arc-shaped grooves 5 are formed in the top end of the driving disk 4 in an annular array;

sliding column 6, sliding column 6 is provided with threely, and three sliding column 6 is the arc wall 5 that the annular array slides at driving-disc 4 top, sliding column 6's bottom is fixed with movable plate 7, the holding head 9 is installed through installed part 8 to movable plate 7's top one end, movable plate 7's bottom is fixed with first slide rail 11, and the top of supporting disc 1 is fixed with first slider 10 with 11 sliding connection of first slide rail, the bottom of supporting disc 1 is provided with and is used for driving-disc 4 to carry out rotatory driving piece 13.

Wherein, for better supporting function of the clamp, four supporting legs 12 are fixed on the top of the supporting disk 1 in an annular array.

Meanwhile, in order to increase the contact area with the workpiece and improve the clamping stability, the three clamping heads 9 are connected through an elastic rope 31.

When the cylindrical workpiece is clamped and fixed: at first, drive power is generated through the driving part 13, the driving part 13 can drive the rotating shaft 3 to rotate, then the rotating shaft 3 drives the driving disc 4 to rotate by a small angle, thereby the sliding column 6 slides in the arc-shaped groove 5 on the driving disc 4, the limiting effect through the arc-shaped groove 5 can convert the sliding displacement of the arc-shaped groove 5 into the advancing motion of the movable plate 7, the movable plate 7 drives the three clamping heads 9 to be close to the inner side wall of the machined part and to be tightly clamped and fixed with the inner side wall of the machined part during the advancing motion, thereby the automatic fixed clamping of the cylindrical machined part is realized, and the positions of the clamping heads 9 can be changed along with the rotating angle of the driving disc 4, the structure is flexible, the cylindrical machined part can be adjusted according to the inner diameter of the machined part, the application range is wide, and the cylindrical machined parts with different diameters can be clamped and fixed conveniently.

Example 2

Referring to fig. 3 and 4, in this embodiment, which further illustrates embodiment 1, the driving member 13 is shown to include a motor frame 14 fixed to the bottom of the support disk 1, a driving motor 15 is arranged on the inner side of the motor frame 14, a screw rod 16 is fixed at the output end of the driving motor 15 through a coupling, two ends of the screw rod 16 are respectively sleeved with a second bearing 17, the outer ring of the second bearing 17 is clamped with a bearing seat 18, the top end of the bearing seat 18 is fixed with the bottom of the supporting disc 1, the outer side of the screw rod 16 is connected with a thread block 19 in a threaded manner, a rack 20 is fixed on one side of the thread block 19, a driving gear 21 is engaged and connected on one side of the rack 20, the driving gear 21 is fixed on the outer side of the rotating shaft 3 below the supporting disk 1, the driving disk 4 can be driven to rotate by the driving part 13, and the three clamping heads 9 are subjected to displacement motion.

In order to realize stable movement of the rack 20, a second slide rail 22 is fixed at the top end of the rack 20, and a second slide block 23 adapted to the second slide rail 22 is fixed at the bottom of the support disc 1.

When the drive disk 4 is rotating: firstly, a driving motor 15 is started to rotate by an angle through an external controller, the driving motor 15 drives a screw rod 16 to rotate, then the screw rod 16 drives a thread block 19 to perform translational motion on the screw rod, then the thread block 19 drives a rack 20 to move, further a driving gear 21 is driven to rotate by an angle, and finally the driving gear 21 drives a rotating shaft 3 to rotate so as to drive a driving disc 4 to rotate by a proper angle, so that workpieces with different sizes are clamped.

Example 3

Referring to fig. 5-6, in this embodiment, as further described in embodiment 1, the mounting member 8 in the figure includes a positioning block 24 fixed at the bottom end of the clamping head 9 and a fixing seat 25 fixed at one end of the top of the moving plate 7, the top of the fixing seat 25 is provided with a positioning hole 26 slidably connected to the positioning block 24, the inner side wall of the positioning hole 26 is symmetrically provided with circular grooves 27, the inner bottom of the circular groove 27 is fixed with a spring 28, one end of the spring 28 away from the inner bottom of the circular groove 27 is fixed with a resisting block 29, the outer walls of both sides of the positioning block 24 are provided with clamping slots 30 adapted to the resisting block 29, and the mounting member 8 can facilitate quick installation and replacement of the clamping head 9, so that the clamp can be suitable for fixed clamping of cylindrical workpieces of different sizes.

Wherein, in order to improve the fixing effect, the end of the abutting block 29 far away from the spring 28 is arranged in a hemispherical shape.

When the clamping head 9 is mounted: the clamping head 9 is taken to be moved, the positioning block 24 on the clamping head 9 is inserted into the corresponding positioning hole 26 on the fixing seat 25, in the inserting process, when the side face of the positioning block 24 is in contact with the outer spherical surface of the abutting block 29, the abutting block 29 can compress the spring 28 to move in the circular groove 27 under the action of the outer spherical surface of the abutting block 29, until the positioning block 24 is completely inserted into the positioning hole 26, the abutting block 29 extends into the clamping groove 30 on the positioning block 24 under the action of the restoring force of the spring 28, so that the positioning block 24 is stably fixed in the positioning hole 26, and the clamping head 9 can be rapidly installed.

In the scheme, the type Y80M1-2 is preferably selected as the driving motor 15, a power supply interface of the motor is connected with a power supply system through a switch, a motor operation circuit is a normal and reverse rotation control program of a conventional motor, the circuit operates as the conventional circuit, circuits and control related in the scheme are the prior art, and redundant description is not repeated herein.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A jig for machine manufacturing, characterized by comprising: the device comprises a supporting disc (1), wherein a first bearing (2) is fixed at the central position of the supporting disc (1), an inner ring of the first bearing (2) is in interference fit with a rotating shaft (3), a driving disc (4) is fixedly sleeved on the outer side of the top end of the rotating shaft (3), and three groups of arc-shaped grooves (5) are formed in the top end of the driving disc (4) in an annular array; sliding column (6), sliding column (6) are provided with threely, and three sliding column (6) are that the annular array slides in arc wall (5) at driving-disc (4) top, the bottom of sliding column (6) is fixed with movable plate (7), clamping head (9) are installed through installed part (8) to the top one end of movable plate (7), the bottom of movable plate (7) is fixed with first slide rail (11), and the top of supporting disc (1) is fixed with first slider (10) with first slide rail (11) sliding connection, the bottom of supporting disc (1) is provided with and is used for driving-disc (4) to carry out rotatory driving piece (13).

2. The jig for machine manufacturing according to claim 1, characterized in that: driving piece (13) are including fixing motor frame (14) in support disc (1) bottom, driving motor (15) are installed to the inboard of motor frame (14), the output of driving motor (15) is fixed with lead screw (16) through the shaft coupling, second bearing (17) have all been cup jointed at the both ends of lead screw (16), the outer lane block of second bearing (17) has bearing frame (18), and the top of bearing frame (18) is fixed with the bottom of supporting disc (1), the outside threaded connection of lead screw (16) has screw block (19), one side of screw block (19) is fixed with rack (20), one side meshing of rack (20) is connected with drive gear (21), the outside at support disc (1) below rotation axis (3) is fixed in drive gear (21).

3. The jig for machine manufacturing according to claim 2, characterized in that: a second sliding rail (22) is fixed at the top end of the rack (20), and a second sliding block (23) matched with the second sliding rail (22) is fixed at the bottom of the supporting disc (1).

4. The jig for machine manufacturing according to claim 1, characterized in that: mounting part (8) including fixing locating piece (24) in clamping head (9) bottom and fixing base (25) at movable plate (7) top one end, locating hole (26) with locating piece (24) sliding connection are seted up at the top of fixing base (25), circular slot (27) have been seted up to the inside wall symmetry of locating hole (26), the interior bottom of circular slot (27) is fixed with spring (28), interior bottom one end that circular slot (27) were kept away from in spring (28) is fixed with and supports tight piece (29), draw-in groove (30) with supporting tight piece (29) looks adaptation are all seted up to the both sides outer wall of locating piece (24).

5. The jig for machine manufacturing according to claim 4, characterized in that: the end, far away from the spring (28), of the abutting block (29) is arranged in a hemispherical shape.

6. The jig for machine manufacturing according to claim 1, characterized in that: the top of the supporting disk (1) is fixed with four supporting legs (12) in an annular array.

7. The jig for machine manufacturing according to claim 1, characterized in that: the three clamping heads (9) are connected through an elastic rope (31).