CN210232312U

CN210232312U - Machine tool fixture with multi-shape clamping

Info

Publication number: CN210232312U
Application number: CN201920817206.1U
Authority: CN
Inventors: Yuli Cui; 崔玉利
Original assignee: Xuzhou Juzheng Machinery Co Ltd
Current assignee: Xuzhou Juzheng Machinery Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-04-03
Anticipated expiration: 2029-06-03

Abstract

The utility model relates to the field of machining, in particular to a multi-shape clamping machine tool clamp, which comprises a pressing frame body, a pressing plate, a transmission column and a pressurizing mechanism; a horizontal flat plate clamping cavity penetrating through the front and the rear is formed in the pressing frame body, the pressing plate is horizontally arranged in the flat plate clamping cavity, the transmission column is fixed on the center of the pressing plate, the transmission column upwards penetrates through the top of the pressing frame body, and the upper end of the pressing plate is fixedly connected to the pressurizing mechanism; the fixed welding in the top that compresses tightly the framework has the fixed cover of cover in the transmission post outside, sets up the through-hole that is greater than the transmission post on the fixed cover, sets up the inserting groove of perpendicular to transmission post on the lateral wall of fixed cover, and runs through around fixed cover, sets up the logical groove the same with inserting groove shape on the transmission post. The utility model discloses an anchor clamps can the work piece of centre gripping multiple structure, carries out simple adjustment according to the work piece of difference, switches convenient and fast each other, need not dismantle anchor clamps just can switch.

Description

Machine tool fixture with multi-shape clamping

Technical Field

The utility model relates to the field of machining, specifically a machine tool fixture of multiform form centre gripping.

Background

The machine tool mainly adopts mechanical force to change the surface shape of a material so as to form the material according to the designed shape, is mainly used for drilling, slotting and the like, and is usually required to clamp and reprocess a plurality of parts due to the fact that a plurality of slender parts to be machined are different in shapes, and the parts are usually required to be clamped quickly and efficiently from different parts.

The high-efficiency machine tool clamp disclosed in the chinese patent (publication No. CN 208811616U) can clamp and fix a workpiece with a plate-like structure, and then perform corresponding machine tool operation, and if clamping workpieces with other shapes, the clamp needs to be replaced, so that one machine tool needs to be equipped with a plurality of clamps, which not only increases the production cost, but also needs personnel to disassemble and replace, thereby increasing the labor intensity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lathe anchor clamps of multiform form centre gripping to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a multi-shape clamping machine tool clamp comprises a pressing frame body, a pressing plate, a transmission column and a pressurizing mechanism; a horizontal flat plate clamping cavity penetrating through the front and the rear is formed in the pressing frame body, the pressing plate is horizontally arranged in the flat plate clamping cavity, and the pressing plate can move up and down in the flat plate clamping cavity to adjust the height in the flat plate clamping cavity; the transmission column is fixed on the center of the pressing plate, the transmission column upwards penetrates through the top of the pressing frame body, the upper end of the pressing plate is fixedly connected to the pressurizing mechanism, and the pressing plate or the pressing frame body moves by driving the transmission column to stretch through the pressurizing mechanism; a fixing sleeve sleeved outside the transmission column is fixedly welded at the top of the compression frame body, a through hole larger than the transmission column is formed in the fixing sleeve, and the transmission column can move in the fixing sleeve; the side wall of the fixed sleeve is provided with an inserting groove perpendicular to the transmission column, the inserting groove penetrates through the front and the back of the fixed sleeve, and the transmission column is provided with a through groove with the same shape as the inserting groove.

Further: the pressurizing mechanism is a hydraulic cylinder or a pneumatic cylinder, and the pressurizing mechanism stretches and retracts to drive the transmission column to move.

Further: the bottom surface of the pressing frame body is provided with a sunken arc-shaped clamping surface, and the arc-shaped clamping surface can be in contact with a workpiece of a cylindrical structure to clamp and fix the workpiece.

Further: when the pressing plate is positioned at the uppermost end in the flat plate clamping cavity, the inserting groove is aligned with the through groove, the bolt plate is horizontally inserted into the inserting groove, the transmission column is fixed in the fixed sleeve, the transmission column cannot move relative to the fixed sleeve, and the whole pressing frame body is driven to move through the pressurizing mechanism.

Further: the bottom of the flat plate clamping cavity is provided with a vertical clamping through groove which penetrates up and down, and the vertical clamping through groove is positioned in the center and can vertically and upwardly insert a workpiece with a plate-shaped structure; a downward vertical clamping limiting groove is formed in the corresponding pressing plate right above the vertical clamping through groove, a top plate which slides in the longitudinal direction is arranged at the top of the vertical clamping limiting groove, a linkage block is fixedly connected to the top plate, inclined planes are arranged on the left side and the right side of the linkage block, and the width of the lower end of the linkage block is larger than that of the upper end of the linkage block; lateral clamping rods moving in the horizontal direction are arranged on the left side and the right side of the vertical clamping limiting groove, a pry bar is rotatably connected to the inner ends of the lateral clamping rods, a sliding groove penetrating through the pry bar in the front and back direction is formed in the middle of the pry bar, a supporting rod fixed horizontally penetrates through the sliding groove, the relative position of the pry bar can be adjusted while the pry bar rotates around the supporting rod, and the lower end of the pry bar can push the lateral clamping rods to move conveniently, a wedge-shaped block facing the inclined surface of the linkage block is fixed at the upper end of the pry bar, one surface of the wedge-shaped block facing the linkage block is parallel to the inclined surface of the linkage block, so that the side surface of the linkage block is attached to the wedge-shaped block and moves downwards, thus, when the linkage block moves upwards, the wedge-shaped block can be pushed, the upper end of the pry bar is unfolded outwards, the lower end of the pry bar is closed inwards, thereby the lateral clamping rods on the two sides are extruded inwards, and the workpiece in the vertical clamping limiting groove is clamped.

Further: the lateral clamping rod is fixedly connected with a return spring, the other end of the return spring is fixed on the fixing seat, the lateral clamping rod is tensioned through the return spring, the linkage block downwards and backwards prying rod loses the thrust on the lateral clamping rod, the lateral clamping rod naturally resets, and the next time of clamping is facilitated.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an anchor clamps can the work piece of centre gripping multiple structure, carries out simple adjustment according to the work piece of difference, switches convenient and fast each other, need not dismantle anchor clamps just can switch, and anchor clamps application range is extensive, and the centre gripping is firm.

Drawings

Fig. 1 is a schematic structural diagram of a multi-shape clamping machine tool clamp.

Fig. 2 is a structural schematic diagram of a multi-shape clamping machine tool clamp after installation.

Fig. 3 is an enlarged schematic view of a in fig. 2.

In the figure: 1-a pressing frame body, 2-a pressing plate, 3-a transmission column, 4-a pressurizing mechanism, 5-a flat plate clamping cavity, 6-an arc-shaped clamping surface, 7-an inserting groove, 8-a bolt plate, 9-a vertical clamping through groove, 10-a vertical clamping limiting groove, 11-a top plate, 12-a linkage block, 13-a lateral clamping rod, 14-a pry rod, 15-a wedge block, 16-an inclined plane, 17-a sliding groove, 18-a support rod, 19-a reset spring, 20-a fixed seat and 21-a fixed sleeve.

Detailed Description

Example 1

Referring to the drawings, in the embodiment of the present invention, a multi-shape clamping machine tool fixture includes a pressing frame 1, a pressing plate 2, a transmission column 3 and a pressurizing mechanism 4; a horizontal flat plate clamping cavity 5 penetrating through the front and the back is formed in the pressing frame body 1, the pressing plate 2 is horizontally arranged in the flat plate clamping cavity 5, and the pressing plate 2 can move up and down in the flat plate clamping cavity 5 to adjust the height in the flat plate clamping cavity; the transmission post 3 is fixed in the center of clamp plate 2, and the transmission post 3 upwards passes the top that compresses tightly framework 1, and the upper end fixed connection of clamp plate 2 is on loading system 4, and it is flexible to drive transmission post 3 through loading system 4, and loading system 4 is pneumatic cylinder or pneumatic cylinder, and flexible drive transmission post 3 that drives removes, realizes clamp plate 2 or the removal that compresses tightly framework 1.

The top of the compressing frame body 1 is fixedly welded with a fixing sleeve 21 which is sleeved outside the transmission column 3, the fixing sleeve 21 is provided with a through hole which is larger than the transmission column 3, and the transmission column 3 can move in the fixing sleeve 21; the side wall of the fixed sleeve 21 is provided with an inserting groove 7 vertical to the transmission column 3, the inserting groove 7 penetrates through the front and the back of the fixed sleeve 21, a through groove with the same shape as the inserting groove 7 is formed in the transmission column 3, the inserting groove 7 is aligned with the through groove when the pressing plate 2 is positioned at the uppermost end in the flat plate clamping cavity 5, and the bolt plate 8 is horizontally inserted into the through groove, so that the transmission column 3 is fixed in the fixed sleeve 21, the transmission column 3 cannot move relative to the fixed sleeve 21, and the whole pressing frame body 1 is driven to move through the pressurizing mechanism 4; the bottom surface of the pressing frame body 1 is provided with a sunken arc-shaped clamping surface 6, and the arc-shaped clamping surface 6 can be in contact with a workpiece of a cylindrical structure to clamp and fix the workpiece.

After the clamp is arranged on a machine tool, when a workpiece to be processed is of a cylindrical structure, the workpiece is horizontally arranged below the pressing frame body 1, the bolt plate 8 is inserted into the inserting groove 7, the bolt plate 8 is also inserted into the through groove on the transmission column 3, the transmission column 3 is fixed, the whole pressing frame body 1 is driven by the fixed pressurizing mechanism 4 to move downwards, and the cylindrical workpiece is pressed tightly through the arc-shaped clamping surface 6 at the bottom of the pressing frame body 1 and is fixedly clamped; when a workpiece needing to be clamped is a plate-shaped structure or other workpieces with edges, the workpiece can be horizontally inserted into the flat plate clamping cavity 5, the bolt plate 8 is pulled out of the inserting groove 7, the fixed pressurizing mechanism 4 drives the pressing frame body 1 to move downwards, and after the pressing frame body 1 reaches a machine tool, the pressurizing mechanism 4 continues to drive the pressing plate 2 to move downwards until the pressing plate 2 is pressed on the surface of the workpiece, so that the workpiece is fixed.

Example 2

On the basis of embodiment 1, the bottom of the flat plate clamping cavity 5 is provided with a vertical clamping through groove 9 which penetrates up and down, and the vertical clamping through groove 9 is positioned at the center position and can vertically and upwardly insert a workpiece with a plate-shaped structure; a downward vertical clamping limiting groove 10 is formed in the corresponding pressing plate 2 right above the vertical clamping through groove 9, a top plate 11 which slides in the longitudinal direction is arranged at the top of the vertical clamping limiting groove 10, a linkage block 12 is fixedly connected to the top plate 11, inclined planes 16 are arranged on the left side and the right side of the linkage block 12, and the width of the lower end is larger than that of the upper end; the lateral clamping rods 13 moving in the horizontal direction are arranged on the left side and the right side of the vertical clamping limiting groove 10, the inner ends of the lateral clamping rods 13 are connected with a pry bar 14 in a rotating mode, the middle of the pry bar 14 is provided with a sliding groove 17 penetrating through the pry bar 14 in the front and back direction, a supporting rod 18 fixed horizontally penetrates through the sliding groove 17, the pry bar 14 can adjust the relative position while rotating around the supporting rod 18, the lower end of the pry bar 14 conveniently pushes the lateral clamping rods 13 to move, a wedge block 15 facing the inclined plane of the linkage block 12 is fixed at the upper end of the pry bar 14, one surface of the wedge block 15 facing the linkage block 12 is parallel to the inclined plane 16 of the linkage block 12, the side surface of the linkage block 12 is attached to the wedge block 15 to move downwards, the linkage block 12 can push the wedge block 15 when moving upwards, the upper end of the pry bar 14 is enabled to expand outwards, the lower end of the pry bar 14 is enabled, the workpiece positioned in the vertical clamping limiting groove 10 is clamped, the lateral clamping rod 13 is fixedly connected with the reset spring 19, the other end of the reset spring 19 is fixed on the fixing seat 20, the lateral clamping rod 13 is tensioned through the reset spring 19, the linkage block 12 downwards and the rear prying rod 14 loses the thrust on the lateral clamping rod 13, the lateral clamping rod 13 naturally resets, and the next time of clamping is facilitated. Like this, when need vertically add man-hour to plate structure's work piece, upwards insert inside from vertical centre gripping logical groove 9 with the work piece, the upper end compresses tightly through vertical centre gripping spacing groove 10 to make the side direction clamping rod 13 of both sides compress tightly in the work piece both sides under the pressure effect, realize pressing from both sides tightly fixedly.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A multi-shape clamping machine tool clamp comprises a pressing frame body (1), a pressing plate (2), a transmission column (3) and a pressurizing mechanism (4); a horizontal through front and back flat clamping cavity (5) is formed in the pressing frame body (1), the pressing plate (2) is horizontally arranged in the flat clamping cavity (5), the transmission column (3) is fixed on the center of the pressing plate (2), the transmission column (3) upwards penetrates through the top of the pressing frame body (1), and the upper end of the pressing plate (2) is fixedly connected to the pressurizing mechanism (4); the device is characterized in that a fixed sleeve (21) sleeved outside the transmission column (3) is fixedly welded at the top of the compression frame body (1), a through hole larger than the transmission column (3) is formed in the fixed sleeve (21), an insertion groove (7) perpendicular to the transmission column (3) is formed in the side wall of the fixed sleeve (21), the front and the back of the fixed sleeve (21) are penetrated, and a through groove with the same shape as the insertion groove (7) is formed in the transmission column (3).

2. A multi-shape gripping machine tool holder as claimed in claim 1 wherein: the pressurizing mechanism (4) is a hydraulic cylinder or a pneumatic cylinder.

3. A multi-shape gripping machine tool holder as claimed in claim 1 wherein: and a sunken arc-shaped clamping surface (6) is arranged on the bottom surface of the pressing frame body (1).

4. A multi-shape gripping machine tool holder as claimed in claim 1 wherein: when the pressing plate (2) is positioned at the uppermost end in the flat plate clamping cavity (5), the inserting groove (7) is aligned with the through groove, and the inserting pin plate (8) is horizontally inserted into the inserting groove.

5. A multi-shape gripping machine tool holder according to any one of claims 1 to 4 wherein: the bottom of the flat plate clamping cavity (5) is provided with a vertical clamping through groove (9) which penetrates up and down, and the vertical clamping through groove (9) is positioned in the center; a downward vertical clamping limiting groove (10) is formed in the corresponding pressing plate (2) right above the vertical clamping through groove (9), a top plate (11) which slides in the longitudinal direction is arranged on the top of the vertical clamping limiting groove (10), a linkage block (12) is fixedly connected to the top plate (11), inclined planes (16) are arranged on the left side and the right side of the linkage block (12), and the width of the lower end is larger than that of the upper end; all be provided with side direction clamping rod (13) that move on the horizontal direction on the left and right sides of vertical centre gripping spacing groove (10), rotate on the inner of side direction clamping rod (13) and be connected with pinch bar (14), spout (17) that run through around the middle part of pinch bar (14) is seted up, wear to be equipped with a horizontally fixed branch (18) in spout (17), be fixed with wedge (15) towards linkage block (12) inclined plane in the upper end of pinch bar (14), wedge (15) are parallel with inclined plane (16) of linkage block (12) towards the one side of linkage block (12).

6. A multi-shape gripping machine tool holder as claimed in claim 5 wherein: the lateral clamping rod (13) is fixedly connected with a return spring (19), and the other end of the return spring (19) is fixed on the fixed seat (20).