CN108723852B

CN108723852B - Workpiece machining clamp

Info

Publication number: CN108723852B
Application number: CN201810655865.XA
Authority: CN
Inventors: 周凤霞; 李卫民
Original assignee: Shanghai Beacon Machinery Co Ltd
Current assignee: Shanghai Beacon Machinery Co Ltd
Priority date: 2018-06-23
Filing date: 2018-06-23
Publication date: 2020-03-17
Anticipated expiration: 2038-06-23
Also published as: CN108723852A

Abstract

The invention discloses a part machining tool, in particular to a workpiece machining clamp which comprises an installation shaft, a connector connected with the installation shaft and a clamping head arranged on the connector, wherein the connector is hinged with the installation shaft, the clamping head is abutted against the end face of the connector and is rotatably connected with the connector, and a limiting structure for limiting the rotation angle of the clamping head is arranged between the connector and the clamping head. The clamping head can carry out the centre gripping to the work piece, through connector and installation axle, lets it can fix, through the articulated between connector and the installation axle, lets the angle of connector adjust, and then lets the work piece become the state of slope, in addition, adopts connector and clamping head to rotate the setting of being connected, can let the work piece rotate to can process in the position of difference, need not tear the work piece out, it is more convenient.

Description

Workpiece machining clamp

Technical Field

The present invention relates to a part processing tool, and more particularly, to a workpiece processing jig.

Background

In the machining process, oblique machining is performed, such as inclined holes, chutes and the like, a single inclined hole and chute can directly incline a workpiece, then the workpiece is machined and then the machining is completed, but in many times, the machining of the inclined hole and the chute is not only one but multiple in one part, at the moment, during machining, the workpiece needs to be machined one time first and then taken down, the position is changed to perform machining in other directions, and the machining is complex, so that the workpiece needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a workpiece machining clamp which can facilitate the machining of a plurality of inclined holes or inclined grooves.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a workpiece machining clamp, includes installation axle, the connector of being connected with the installation axle and installs the clamping head on the connector, the connector is articulated with the installation axle, clamping head and connector terminal surface butt, and clamping head and connector rotate to be connected, be provided with the restriction clamping head turned angle's of restriction limiting structure between connector and the clamping head.

Through the technical scheme, the clamping head can clamp the workpiece, the workpiece can be fixed through the connector and the installation shaft, the angle of the connector can be adjusted through the hinge between the connector and the installation shaft, the workpiece is changed into an inclined state, in addition, the connector and the clamping head are adopted to rotate the connection, the workpiece can be rotated, and therefore the workpiece can be processed at different positions without being detached, and the workpiece is convenient to use.

The invention is further configured to: the limiting structure comprises a limiting rod arranged on the connector and a plurality of limiting grooves formed in the clamping head, the limiting rod is arranged in the limiting groove, a mounting hole is formed in the connector, the limiting rod is slidably mounted in the mounting hole, and an elastic piece is arranged in the mounting hole and used for pushing the limiting rod to slide into the limiting groove along the direction of the limiting groove.

Through the technical scheme, the limiting rods and the limiting grooves can limit the rotation of the clamping heads, so that the clamping heads can be limited in the machining process, and the purpose of positioning the clamping heads is achieved.

The invention is further configured to: the installation axle includes the axis body and is used for the articulated portion be connected with the connector, the connector including be used for with the holding head be connected the mounting disc and with the integrative connecting portion that sets up of mounting disc, connecting portion and articulated portion laminating, and wear to be equipped with the articulated shaft between articulated portion and the connecting portion, the articulated shaft is fixed with articulated portion and connecting portion locking respectively.

Through above-mentioned technical scheme, the articulated shaft can let articulated portion and connecting portion rotate around it respectively to realize articulated purpose, and then let the clamping head can incline.

The invention is further configured to: the clamping head is provided with a rotating hole, the mounting disc is provided with a rotating shaft, and the rotating hole is matched with the rotating shaft.

Through the technical scheme, the clamping heads can be rotated by matching the rotating holes with the rotating shafts, and then multi-angle machining can be realized during machining, the clamping angle does not need to be changed, machining is convenient, and machining efficiency is high.

The invention is further configured to: the rotating shaft is perpendicular to the hinged shaft.

Through above-mentioned technical scheme, let axis of rotation and articulated shaft perpendicular setting, can let the convenient adjustment of work piece angle to let it when rotating, the change in the angle can not be had to the work piece of its processing.

The invention is further configured to: the rotating shaft is eccentrically arranged on the mounting disc.

Through above-mentioned technical scheme, the axis of rotation eccentric mounting lets the work piece adjust to the axis position on the mounting disc to add man-hour, its atress is more even, excessive torsion can not appear.

The invention is further configured to: the clamping head is provided with a mounting hole for mounting a workpiece, and the mounting hole and the rotating hole are coaxially arranged.

Through the technical scheme, the mounting hole can facilitate the installation of the workpiece, and the position of the workpiece in rotation can not be influenced by the coaxial arrangement, so that the processed product is regular and has small deviation.

The invention is further configured to: the mounting hole is characterized in that a notch is formed in one side of the mounting hole, a guide inclined plane is arranged at the position of the notch, an inclined block is installed in the notch, a locking piece is installed in the notch, and the locking piece pushes the inclined block to slide along the guide inclined plane.

Through the technical scheme, the sloping block can be conveniently placed by the notch, and the sloping block is locked through the locking part, so that the sloping block slides towards the center of the mounting hole, and the workpiece can be clamped by the sloping block.

The invention is further configured to: be provided with the regulating block between clamping head and the connector, the clamping head is installed on the regulating block and the clamping head rotates with the regulating block to be connected, regulating block and connector sliding connection, the slip direction of regulating block is perpendicular with the axis direction of articulated shaft between connector and the installation axle.

Through adopting above-mentioned technical scheme, through the setting of regulating block, can let the position of work piece adjust, when the work piece is far away from installation axis, can adjust it to the position with the central axis laminating to it is more convenient when letting it add man-hour.

The invention is further configured to: the connecting head is provided with a sliding groove, the adjusting block is provided with a sliding strip, the sliding strip slides along the sliding groove, the adjusting block is provided with an adjusting shaft in a penetrating mode, and the adjusting shaft pushes the sliding strip to slide along the sliding groove.

Through adopting above-mentioned technical scheme, the regulating spindle promotes the draw runner and slides along the spout, reaches the position of adjusting the work piece apart from the central axis.

In conclusion, the invention has the following beneficial effects:

(1) the multi-direction machining can be carried out by rotating the workpiece, and the angle of the workpiece can be inclined through the connecting head, so that the inclined machining can be carried out;

(2) through the setting of regulating block, can let the position of work piece adjust, when the work piece is far away from installation axis, can adjust it to the position with the central axis laminating to it is more convenient when letting it add man-hour.

Drawings

FIG. 1 is an overall view of the present embodiment;

FIG. 2 is a sectional view of the present embodiment;

fig. 3 is a construction view of an installation of a hinge shaft;

FIG. 4 is a sectional view of the mounting structure of the adjusting block and the clamping head;

FIG. 5 is a view showing the end face structure of the clamping head;

figure 6 is a cross-sectional view of the gripping head.

Reference numerals: 1. installing a shaft; 11. a shaft body; 12. a hinge portion; 2. a connector; 21. a connecting portion; 22. mounting a disc; 221. a chute; 222. a locking lever; 3. a clamping head; 31. rotating the hole; 32. a workpiece hole; 33. a notch; 34. a guide ramp; 35. a sloping block; 36. a locking member; 4. an adjusting block; 41. a slide bar; 411. meshing teeth; 42. an adjustment shaft; 43. a rotating shaft; 5. hinging a shaft; 51. a nut; 52. a locking tooth; 53. a convex strip; 6. a confinement structure; 61. a limiting groove; 62. a restraining bar; 621. a large head rod; 622. a small head rod; 63. mounting holes; 64. an elastic member.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

A workpiece machining clamp is mainly used for oblique multi-angle machining of workpieces, such as machining of inclined holes, inclined grooves and the like. As shown in fig. 1 and 2, the fixture includes a mounting shaft 1, a connector 2 connected to the mounting shaft 1, and a clamping head 3 mounted on the connector 2, wherein the mounting shaft 1 is directly fixed on a machine tool, which can be fixed on a milling machine, a drilling machine, and a lathe. With connector 2 and installation axle 1 articulated, at last with clamping

head

3 and 2 terminal surface butts of connector, will treat the work piece of processing and fix on clamping head 3, through the articulated between connector 2 and the installation axle 1 this moment, let connector 2 and clamping head 3 can rotate and incline, and then let the work piece be in the slant state, at this moment, process, can accomplish slant processing, it is more convenient to process.

As shown in fig. 1 and 2, the mounting shaft 1 includes a shaft body 11 and a hinge portion 12 for connecting with the connecting head 2, the shaft body 11 can be directly mounted on a spindle of a machine tool or a lathe (can be clamped by a three-jaw chuck), and the hinge portion 12 is used for connecting with the connecting head 2. The connector 2 comprises a mounting disc 22 for being connected with the clamping head 3 and a connecting part 21 integrally arranged with the mounting disc 22, the hinge part 12 is attached to the connecting part 21, a hinge shaft 5 penetrates through the hinge part 12 and the connecting part 21, and the hinge shaft 5 is locked and fixed with the hinge part 12 and the hinge shaft 5 respectively. Under the action of the hinge shaft 5, the hinge part 12 and the connecting part 21 can rotate mutually, the angle of the hinge part is changed, so that the purpose of inclination is realized, and the hinge shaft 5 is further locked, so that the inclination angle can be positioned. Generally, the hinge shaft 5 may be directly formed using a bolt. Meanwhile, referring to fig. 3, nuts 51 for locking are respectively provided at both ends of the hinge shaft 5, locking teeth 52 are provided at end portions of the nuts 51, and similarly, a fitting protrusion 53 is provided at an end surface of the hinge portion 12, the connecting portion 21, and the nuts 51, and the locking teeth 52 and the protrusion 53 are fitted to each other for locking, and generally, the locking teeth 52 and the protrusion 53 are provided in a ring shape.

Therefore, during processing, the clamping head 3 forms a certain inclination angle through the hinging of the connecting head 2, and the inclined processing is realized. When the workpiece deviates from the central axis position of the mounting shaft 1 and the machining position is not at the axial center position of the mounting shaft 1, the position of the machined inclined hole is not uniform during machining, and the machining drill may break during drilling. Therefore, in order to solve the above-mentioned technical problems, referring to fig. 1 and 2, the central axis of the gripping head 3 is eccentrically disposed on the mounting plate 22, so that the position of the workpiece to be machined can be located on the same axis as the axis of the mounting shaft 1, thereby being relatively stable during the machining process.

However, in the actual use process, the inclination angle of the workpiece is adjusted, so that the machining position of the workpiece can be adjusted to a certain extent. Therefore, as shown in fig. 1 and 2, in order to make the workpiece more closely fit to the central axis of the mounting shaft 1, the adjusting block 4 is provided on the mounting plate 22, the clamping head 3 is mounted on the adjusting block 4, the adjusting block 4 and the connecting head 2 are slidably connected, and the sliding direction of the adjusting block 4 is perpendicular to the axial direction of the hinge shaft 5 hinged between the connecting head 2 and the mounting shaft 1, so that the position of the workpiece to be machined can be adjusted to the axial center of the mounting shaft 1. Referring to fig. 4, a sliding groove 221 is formed in the mounting plate 22, a sliding bar 41 is arranged on the adjusting block 4, the sliding bar 41 slides along the sliding groove 221, and both the sliding bar 41 and the sliding groove 221 can be arranged in a T-shaped structure, so that the structure is relatively stable. In order to facilitate adjustment and fixation, an adjusting shaft 42 penetrates through the adjusting block 4, the adjusting shaft 42 is a threaded rod, and two ends of the adjusting shaft are directly and rotatably fixed on the adjusting block 4, so that the adjusting shaft cannot move along the axis but can rotate. At this time, the slide bar 41 is provided with the meshing teeth 411, and the meshing teeth 411 are in threaded engagement with the adjusting shaft 42, so that the purpose of adjustment is achieved. Meanwhile, the side surface of the mounting disc 22 is provided with the locking rod 222 (the locking rod 222 can be set into a screw), the axis of the locking rod 222 is perpendicular to the sliding groove 221, the locking rod 222 is in threaded connection with the mounting disc 22, and finally the locking rod 222 is abutted against the sliding strip 41 for locking, so that the locking rod 222 can be stabilized after the adjustment of the position is completed.

In addition, as shown in fig. 1 and 2, in the processing process, a plurality of angles are needed for processing the inclined hole or the inclined groove, so that the clamping head 3 is rotatably connected with the adjusting block 4, the clamping head 3 can rotate by a certain angle, and the clamping head can effectively rotate. After the clamping head 3 rotates a certain angle, the clamping head is fixed, and therefore a limiting structure 6 for limiting the rotation angle of the clamping head 3 is arranged between the adjusting block 4 and the clamping head 3, and the whole clamping head 3 can not rotate when being reprocessed through the limiting structure. In order to facilitate the rotation of the clamping head 3, a rotation hole 31 is formed in the clamping head 3, a rotation shaft 43 is arranged on the adjusting block 4, and the rotation hole 31 is matched with the rotation shaft 43 in a sleeved mode, so that the purpose of matching the clamping head 3 with the adjusting block 4 in a rotating mode is achieved. Wherein, axis of rotation 43 sets up with articulated shaft 5 is perpendicular, lets it can rotate under the state of slope, lets it can process at the multi-angle, and then makes the work piece that the multi-angle needs to process more convenient man-hour.

As shown in fig. 1 and 2, the limiting structure 6 includes a limiting rod 62 mounted on the adjusting block 4 and a plurality of limiting grooves 61 formed on the clamping head 3. The limiting rod 62 is placed in the limiting groove 61 to limit the rotation of the clamping head 3, so as to achieve the purpose of fixing. Meanwhile, a mounting hole 63 is formed in the adjusting block 4, the limiting rod 62 is slidably mounted in the mounting hole 63, an elastic piece 64 (a spring can be directly adopted) is arranged in the mounting hole 63 to push the limiting rod 62 to slide into the limiting groove 61 along the direction of the limiting groove 61, the limiting rod 62 comprises a small head rod 622 and a large head rod 621, the small head rod 622 is arranged in the limiting groove 61, and the diameter of the large head rod 621 is larger than the width of the limiting groove 61. Therefore, when the clamping head 3 needs to rotate, the limiting rod 62 is pushed to be separated from the limiting groove 61, the clamping head 3 rotates, and the purpose of rotating the workpiece is achieved.

In order to facilitate the installation of the workpiece, as shown in fig. 5 and 6, a workpiece hole 32 for installing the workpiece is provided in the gripping head 3, and the workpiece hole 32 is provided coaxially with the rotation hole 31 so that the workpiece is located at the axial center position after the workpiece is installed. One side of the workpiece hole 32 is provided with a notch 33 (the notches 33 can be arranged in pairs, or more than 2 notches can be arranged, and are uniformly distributed on the periphery of the axis, only one notch is arranged in the embodiment), the notch 33 is provided with a guide inclined surface 34, an inclined block 35 is arranged in the notch 33, a locking member 36 is arranged in the notch 33, and the locking member 36 is a bolt and is in threaded connection with the clamping head 3, so that the inclined block 35 can be pushed to slide along the guide inclined surface 34.

During the working process, the mounting shaft 1 is fixed on the three-jaw chuck, the whole fixture is fixed, the hinged shaft 5 is loosened, the inclined position of the fixture is adjusted, then the fixture is locked, the adjusting shaft 42 is rotated, the position of the adjusting block 4 is adjusted, the locking rod 222 is locked, finally a workpiece is placed in the workpiece hole 32, the locking part 36 is locked, and the inclined block 35 is used for locking and fixing the workpiece for processing. In-process of processing, add man-hour when needs multi-angle, at first carry out first angle processing, processing is accomplished the back, through promoting restriction lever 62, lets it break away from restriction groove 61, then rotates the clamping head 3 to certain angle after, unclamps restriction lever 62, lets it kick-back, and the card is gone into restriction groove 61 and is restricted it fixedly, carries out the processing of next angle, and processing is accomplished until.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A workpiece machining clamp is characterized by comprising an installation shaft (1), a connector (2) connected with the installation shaft (1) and a clamping head (3) installed on the connector (2), wherein an adjusting block (4) is arranged between the clamping head (3) and the connector (2), the connector (2) is hinged with the installation shaft (1), the clamping head (3) is abutted to the end face of the adjusting block (4), the clamping head (3) is installed on the adjusting block (4), the clamping head (3) is rotatably connected with the adjusting block (4), and a limiting structure (6) for limiting the rotation angle of the clamping head (3) is arranged between the adjusting block (4) and the clamping head (3);

the mounting shaft (1) comprises a shaft body (11) and a hinge part (12) which is used for being connected with the connector (2), the connector (2) comprises a mounting disc (22) which is used for being connected with the adjusting block (4) and a connecting part (21) which is integrally arranged with the mounting disc (22), the connecting part (21) is attached to the hinge part (12), and a hinge shaft (5) penetrates between the hinge part (12) and the connecting part (21);

a rotating hole (31) is formed in the clamping head (3), a rotating shaft (43) is arranged on the adjusting block (4), and the rotating hole (31) is matched with the rotating shaft (43);

regulating block (4) and mounting disc (22) sliding connection, the slip direction of regulating block (4) is perpendicular with the axis direction of articulated shaft (5) between connector (2) and installation axle (1).

2. The workpiece processing clamp according to claim 1, wherein the limiting structure (6) comprises a limiting rod (62) installed on the installation plate (22) and a plurality of limiting grooves (61) formed in the clamping head (3), the limiting rod (62) is arranged in the limiting groove (61), a mounting hole (63) is formed in the adjusting block (4), the limiting rod (62) is slidably installed in the mounting hole (63), and an elastic piece (64) is arranged in the mounting hole (63) to push the limiting rod (62) to slide into the limiting groove (61) along the direction of the limiting groove (61).

3. The workpiece processing jig according to claim 1, wherein the hinge shaft (5) is lockingly fixed to the hinge portion (12) and the connecting portion (21), respectively.

4. The workpiece processing clamp according to claim 1, characterized in that the rotation axis (43) is arranged perpendicular to the hinge axis (5).

5. The workpiece processing fixture of claim 1, characterized in that the rotation shaft (43) is eccentrically arranged on the adjusting block (4).

6. The workpiece processing clamp according to claim 1, wherein the clamping head (3) is provided with a workpiece hole (32) for mounting a workpiece, and the workpiece hole (32) is coaxially arranged with the rotation hole (31).

7. The workpiece processing clamp according to claim 6, wherein a notch (33) is formed in one side of the workpiece hole (32), a guide inclined surface (34) is formed in the position of the notch (33), an inclined block (35) is installed in the notch (33), a locking member (36) is installed in the notch (33), and the locking member (36) pushes the inclined block (35) to slide along the guide inclined surface (34).

8. The workpiece machining clamp according to claim 1, wherein a sliding groove (221) is formed in the mounting plate (22), a sliding strip (41) is arranged on the adjusting block (4), the sliding strip (41) slides along the sliding groove (221), an adjusting shaft (42) penetrates through the adjusting block (4), and the adjusting shaft (42) pushes the sliding strip (41) to slide along the sliding groove (221).