CN216938457U

CN216938457U - A numerical control lathe turning anchor clamps for spot facing work on connecting rod

Info

Publication number: CN216938457U
Application number: CN202220454587.3U
Authority: CN
Inventors: 陈廷堡; 纪东伟; 陈强; 赵耀庆; 蓝韶辉
Original assignee: Zhuhai Technician College (zhuhai Senior Technical School)
Current assignee: Zhuhai Technician College (zhuhai Senior Technical School)
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-07-12
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses a turning clamp of a numerical control lathe for machining holes in a connecting rod, and relates to the technical field of clamps. The structure of the utility model comprises a processing table, a centering device and a positioning device, wherein a top side wall of the processing table is provided with a central groove and a side groove, the bottom of the central groove is provided with a first slide way, the bottom of the side groove is provided with a second slide way, and a third slide way is arranged between the central groove and the side groove; the centering device structurally comprises a first bidirectional screw, a first knob and two moving shells, wherein the moving shells and the first bidirectional screw are arranged in a first slideway, two moving blocks of the first bidirectional screw are respectively fixed with the two moving shells, a first gear is fixed at the rear end of the first bidirectional screw, the first gear is meshed with a second gear, and the first knob is arranged on the bottom side wall of the machining table and is fixed with the second gear; the positioning device is arranged between the central groove and the side grooves. The utility model is convenient for positioning the circle center of the hole on the connecting rod.

Description

A numerical control lathe turning anchor clamps for spot facing work on connecting rod

Technical Field

The utility model relates to the technical field of clamps, in particular to a turning clamp of a numerical control lathe for machining holes in a connecting rod.

Background

The connecting rod is a member for connecting the piston and the crankshaft, transmitting the acting force applied to the piston to the crankshaft, and converting the reciprocating motion of the piston into the rotating motion of the crankshaft. The connecting rod is usually produced by adopting a casting process, but the cast hole is not smooth and has low precision, a numerical control lathe is also required for grinding, and a turning clamp is required for fixing the connecting rod during processing. Because the hole is circular, the position of the circle center is inconvenient to determine when the existing clamp clamps, thereby influencing the accuracy of hole machining.

Therefore, a turning clamp of a numerical control lathe for processing holes on connecting rods is provided by the technical personnel in the field, so as to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the accuracy of hole machining is influenced because the position of the circle center is inconvenient to determine when the existing clamp clamps.

In order to solve the technical problems, the utility model provides a turning clamp of a numerical control lathe for machining holes in a connecting rod, which comprises a machining table, a centering device and a positioning device, wherein the machining table is of a cylindrical structure, a groove arranged at the center of the top side wall of the machining table is a central groove, a groove arranged at the right side of the machining table is a side groove, a strip-shaped groove arranged on the bottom side wall of the central groove is a first slideway, a strip-shaped groove arranged on the bottom side wall of the side groove is a second slideway, and a strip-shaped groove arranged between the central groove and the side groove is a third slideway; the centering device structurally comprises a first bidirectional screw rod, a first knob and two symmetrical movable shells, the movable shell is of a cuboid shell structure, a sliding block is arranged in a cavity of the movable shell, the bottom end of the sliding block is connected with the movable shell through a second spring, a cylindrical support column is fixed at the top end of the sliding block and penetrates out of the top wall of the movable shell, and penetrates through a first slideway, the movable shell is arranged in the first slideway, the first bidirectional screw is arranged in a groove on the right side wall of the first slideway, two moving blocks of the threaded sleeve on the first bidirectional screw rod are respectively fixed with two moving shells, a first gear is fixed at the rear end of the first bidirectional screw rod, the first gear is meshed with a second gear, and the first knob is arranged on the bottom side wall of the processing table and is fixedly connected with the top end of a gear column of the second gear; the positioning device is arranged between the central groove and the side grooves.

As a further scheme of the utility model: a positioning column is arranged in a groove in the right side wall of the sliding block, the left end of the positioning column is connected with the sliding block through a first spring, and a through hole formed in the right side wall of the movable shell is a positioning hole.

As a further scheme of the utility model: the positioning device structurally comprises a second bidirectional screw, a second knob and two symmetrical clamping blocks, wherein the clamping blocks are in U-shaped block structures and are arranged on the top side wall of the processing table; the second bidirectional screw is arranged in the third slideway, two moving blocks of a threaded sleeve on the second bidirectional screw are respectively fixed with the two clamping blocks, a third gear is fixed at the rear end of the second bidirectional screw, and the third gear is meshed with a fourth gear; the second knob is arranged on the top side wall of the processing table, and the second knob is fixed with the top end of the gear column of the fourth gear.

As a further scheme of the utility model: the clamping block is characterized in that a supporting block is arranged in a groove in the right side wall of the clamping block, the supporting block is of an inverted right trapezoid cylinder structure, a threaded column is arranged in a cavity in the bottom of the clamping block, and the threaded column penetrates through a threaded through hole in the bottom of the supporting block in a threaded mode.

As a further scheme of the utility model: the left end of the threaded column is fixedly provided with a fifth gear, the fifth gear is meshed with a sixth gear, a third knob is arranged on the top side wall of the clamping block, and the third knob is fixed to the top end of the gear column of the sixth gear.

As a further scheme of the utility model: and a one-way screw is arranged in the second slideway, a bolt is fixed at the top end of a moving block of the threaded sleeve on the one-way screw, and the bolt penetrates out of the second slideway.

As a further scheme of the utility model: the right end of the one-way screw is fixed with a seventh gear, the seventh gear is meshed with an eighth gear, a fourth knob is arranged on the top side wall of the machining table, and the fourth knob is fixed with the top end of a gear column of the eighth gear.

The utility model has the beneficial effects that:

(1) the utility model is provided with the centering device, the hole on the connecting rod is circular, and the circular position can not be determined by the existing clamp facing the connecting rods with different sizes; the two symmetrical support columns are supported at the two ends of the hole, so that the circle center of the hole is positioned at the center line part of the two support columns, and the circle centers of the holes with different apertures can be positioned at the same point.

(2) The utility model is provided with the positioning device, the edge part of the handle part of the connecting rod is inclined and faces the connecting rods with different sizes, and the existing clamp is easy to slide when clamping the handle part; the clamping block is provided with a resisting block, and the resisting block can not only fill a gap between the handle part and the clamping block, but also can be propped against the top wall of the handle part to move upwards through the connecting rod.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the middle of the processing table;

FIG. 3 is a cross-sectional view of the mobile shell;

FIG. 4 is a cross-sectional view of the right portion of the processing table;

fig. 5 is a cross-sectional view of the clamp block.

Wherein: the machining device comprises a machining table 10, a central groove 11, a first slide way 12, a side groove 13, a second slide way 14, a third slide way 15, a moving shell 16, a support column 17, a sliding block 18, a positioning column 19, a first spring 20, a positioning hole 21, a second spring 22, a first bidirectional screw 23, a first gear 24, a first knob 25, a second gear 26, a second bidirectional screw 28, a third gear 29, a second knob 30, a fourth gear 31, a clamping block 32, a support block 33, a threaded column 34, a fifth gear 35, a third knob 36, a sixth gear 37, a fourth knob 38 and a bolt 39.

Detailed Description

The structure of the turning fixture of the numerically controlled lathe for processing the upper hole of the connecting rod provided by the embodiment is shown in fig. 1-5, and the turning fixture comprises a processing table 10, a centering device and a positioning device, wherein the processing table 10 is of a cylindrical structure, a groove arranged at the central part of the top side wall of the processing table 10 is a central groove 11, a groove arranged at the right side part of the processing table 10 is a side groove 13, a strip-shaped groove arranged on the bottom side wall of the central groove 11 is a first slide rail 12, a strip-shaped groove arranged on the bottom side wall of the side groove 13 is a second slide rail 14, and a strip-shaped groove arranged between the central groove 11 and the side groove 13 is a third slide rail 15; the centering device structurally comprises a first bidirectional screw 23, a first knob 25 and two symmetrical movable shells 16, wherein the movable shells 16 are of a cuboid shell structure, a sliding block 18 is arranged in a cavity of the movable shells 16, the bottom end of the sliding block 18 is connected with the movable shells 16 through a second spring 22, a cylindrical support column 17 is fixed at the top end of the sliding block 18, the support column 17 penetrates out of the top wall of the movable shells 16 and penetrates through a first slideway 12, the movable shells 16 are arranged in the first slideway 12, the first bidirectional screw 23 is arranged in a groove in the right side wall of the first slideway 12, two movable blocks of threaded sleeves on the first bidirectional screw 23 are respectively fixed with the two movable shells 16, a first gear 24 is fixed at the rear end of the first bidirectional screw 23, the first gear 24 is meshed with a second gear 26, the first knob 25 is arranged on the bottom side wall of the machining table 10, and is fixedly connected with the top end of the gear column of the second gear 26; said positioning means are arranged between the central groove 11 and the side grooves 13.

A positioning column 19 is arranged in a groove in the right side wall of the sliding block 18, the left end of the positioning column 19 is connected with the sliding block 18 through a first spring 20, a through hole formed in the right side wall of the moving shell 16 is a positioning hole 21, the abutting column 17 is pressed into the moving shell 16 downwards, the sliding block 18 slides downwards, and after the positioning column 19 is aligned with the positioning hole 21, the first spring 20 pushes the positioning column 19 rightwards, so that the positioning column 19 penetrates through the positioning hole 21, and the abutting column 17 is fixed in the moving shell 16.

The positioning device structurally comprises a second bidirectional screw 28, a second knob 30 and two symmetrical clamping blocks 32, wherein the clamping blocks 32 are U-shaped blocky structures, and the clamping blocks 32 are arranged on the top side wall of the processing table 10; the second bidirectional screw 28 is arranged in the third slideway 15, two moving blocks of a threaded sleeve on the second bidirectional screw 28 are respectively fixed with two clamping blocks 32, a third gear 29 is fixed at the rear end of the second bidirectional screw 28, and the third gear 29 is meshed with a fourth gear 31; the second knob 30 is arranged on the top side wall of the machining table 10, the second knob 30 is fixed to the top end of a gear column of the fourth gear 31, the second knob 30 drives the fourth gear 31 to rotate, the fourth gear 31 drives the third gear 29 to rotate so as to drive the second bidirectional screw 28 to rotate, and the two clamping blocks 32 slide oppositely to clamp the handle portion of the connecting rod.

A supporting block 33 is arranged in a groove in the right side wall of the clamping block 32, the supporting block 33 is of an inverted right trapezoid cylinder structure, a threaded column 34 is arranged in a cavity in the bottom of the clamping block 32, the threaded column 34 penetrates through a threaded through hole in the bottom of the supporting block 33 in a threaded mode, the threaded column 34 rotates to enable the supporting block 33 to advance in a threaded mode towards the right, the supporting block 33 moves to the upper side of the connecting rod after extending out of the clamping block 32 until an inclined wall of the supporting block 33 supports against the connecting rod, and one side of the inclined handle portion of the connecting rod is clamped.

The left end of screw thread post 34 is fixed with No. five gears 35, No. five gears 35 and a No. six gear 37 meshing, be provided with No. three knob 36 on the top lateral wall of clamp splice 32, No. three knob 36 is fixed with the top of No. six gear 37's gear post, No. three knob 36 rotates and drives No. six gear 37 and rotate, No. six gear 37 drives No. five gears 35 and rotates to drive screw thread post 34 and rotate.

The second slideway 14 is internally provided with a one-way screw, the top end of a moving block of a threaded sleeve on the one-way screw is fixed with a bolt 39, the bolt 39 penetrates out of the second slideway 14, the bolt 39 penetrates through a right hole of the connecting rod, and after the one-way screw rotates, the moving block drives the bolt 39 to move leftwards or rightwards, so that the bolt 39 is abutted against the left end or the right end of the right hole to prevent the connecting rod from sliding leftwards and rightwards.

The right end of the one-way screw is fixed with a seventh gear, the seventh gear is meshed with an eighth gear, a fourth knob 38 is arranged on the top side wall of the machining table 10, the fourth knob 38 is fixed with the top end of a gear column of the eighth gear, the fourth knob 38 drives the eighth gear to rotate after rotating, and the eighth gear drives the seventh gear to rotate so as to drive the one-way screw to rotate.

The working principle of the utility model is as follows: when in use, the connecting rod is firstly arranged on the two clamping blocks 32, the left hole is extended above the central groove 11, and the right hole is sleeved on the bolt 39; the first knob 25 is rotated, the first knob 25 drives the second gear 26 to rotate, the second gear 26 drives the first gear 24 to rotate so as to drive the first bidirectional screw 23 to rotate, the two movable shells 16 move oppositely until being attached, the positioning column 19 is pressed into the sliding block 18 when the two movable shells 16 are attached, and the second spring 22 pushes the sliding block 18 upwards so that the abutting column 17 upwards extends into the left hole; then, the first knob 25 is rotated to enable the moving shell 16 to move oppositely, and the two support columns 17 move oppositely until the two support columns are supported at the front end and the rear end of the left hole, so that the circle center of the left hole is on the central axis of the machining table; then, the fourth knob 38 is rotated, the eighth gear is driven to rotate after the fourth knob 38 rotates, the eighth gear drives the seventh gear to rotate so as to drive the one-way screw to rotate, and after the one-way screw rotates, the moving block drives the bolt 39 to move left or right, so that the bolt 39 abuts against the left end or right end of the right hole, the connecting rod is transversely straightened, and the connecting rod is prevented from sliding left or right; then, the second knob 30 is rotated, the second knob 30 drives the fourth gear 31 to rotate, the fourth gear 31 drives the third gear 29 to rotate so as to drive the second bidirectional screw 28 to rotate, and the two clamping blocks 32 slide oppositely to clamp the handle part of the connecting rod; then, the third knob 36 is rotated, the third knob 36 rotates to drive the sixth gear 37 to rotate, the sixth gear 37 drives the fifth gear 35 to rotate so as to drive the threaded column 34 to rotate, the threaded column 34 rotates, the abutting block 33 is screwed in rightwards, and the abutting block 33 moves to the upper side of the connecting rod after extending out of the clamping block 32 until the inclined wall of the abutting block 33 abuts against the connecting rod, and one side of the inclined handle of the connecting rod is clamped. The utility model is convenient for positioning the circle center of the hole on the connecting rod.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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. The numerical control lathe turning clamp for machining the upper hole of the connecting rod is characterized by comprising a machining table (10), a centering device and a positioning device, wherein the machining table (10) is of a cylindrical structure, a groove arranged at the center of the top side wall of the machining table (10) is a central groove (11), a groove arranged at the right side of the machining table is a side groove (13), a strip-shaped groove arranged on the bottom side wall of the central groove (11) is a first slide way (12), a strip-shaped groove arranged on the bottom side wall of the side groove (13) is a second slide way (14), and a strip-shaped groove arranged between the central groove (11) and the side groove (13) is a third slide way (15); the centering device structurally comprises a first bidirectional screw rod (23), a first knob (25) and two symmetrical moving shells (16), wherein the moving shell (16) is of a cuboid shell structure, a sliding block (18) is arranged in a cavity of the moving shell (16), the bottom end of the sliding block (18) is connected with the moving shell (16) through a second spring (22), a cylindrical abutting column (17) is fixed at the top end of the sliding block (18), the abutting column (17) penetrates out of the top wall of the moving shell (16) and penetrates through a first slideway (12), the moving shell (16) is arranged in the first slideway (12), the first bidirectional screw rod (23) is arranged in a groove in the right side wall of the first slideway (12), two moving blocks of a threaded sleeve on the first bidirectional screw rod (23) are respectively fixed with the two moving shells (16), a first gear (24) is fixed at the rear end of the first bidirectional screw rod (23), the first gear (24) is meshed with a second gear (26), and the first knob (25) is arranged on the bottom side wall of the processing table (10) and is fixedly connected with the top end of a gear column of the second gear (26); the positioning device is arranged between the central groove (11) and the side grooves (13).

2. The turning clamp of the numerically controlled lathe for machining the upper hole of the connecting rod according to claim 1, characterized in that: a positioning column (19) is arranged in a groove in the right side wall of the sliding block (18), the left end of the positioning column (19) is connected with the sliding block (18) through a first spring (20), and a through hole formed in the right side wall of the movable shell (16) is a positioning hole (21).

3. The turning clamp of the numerically controlled lathe for machining the upper hole of the connecting rod according to claim 1, characterized in that: the positioning device structurally comprises a second bidirectional screw rod (28), a second knob (30) and two symmetrical clamping blocks (32), wherein the clamping blocks (32) are U-shaped block-shaped structures, and the clamping blocks (32) are arranged on the top side wall of the processing table (10); the second bidirectional screw (28) is arranged in the third slideway (15), two moving blocks of a threaded sleeve on the second bidirectional screw (28) are respectively fixed with two clamping blocks (32), a third gear (29) is fixed at the rear end of the second bidirectional screw (28), and the third gear (29) is meshed with a fourth gear (31); the second knob (30) is arranged on the top side wall of the machining table (10), and the second knob (30) is fixed to the top end of a gear column of the fourth gear (31).

4. The turning clamp of the numerical control lathe for machining the upper hole of the connecting rod as claimed in claim 3, wherein: a supporting block (33) is arranged in a groove in the right side wall of the clamping block (32), the supporting block (33) is of an inverted right trapezoid cylinder structure, a threaded column (34) is arranged in a cavity in the bottom of the clamping block (32), and the threaded column (34) penetrates through a threaded through hole in the bottom of the supporting block (33).

5. The turning clamp of the numerical control lathe for machining the upper hole of the connecting rod as claimed in claim 4, wherein: the left end of screw thread post (34) is fixed with No. five gear (35), No. five gear (35) and No. six gear (37) meshing, be provided with No. three knob (36) on the top lateral wall of clamp splice (32), No. three knob (36) are fixed with the top of the gear post of No. six gear (37).