CN215998816U

CN215998816U - Clamping assembly

Info

Publication number: CN215998816U
Application number: CN202122106116.1U
Authority: CN
Inventors: 李敏华
Original assignee: Shenzhen Hongyoujin Diamond Tools Co ltd
Current assignee: Shenzhen Hongyoujin Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-03-11
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a clamping component, clamping component includes: the clamping seat is provided with a clamping groove for inserting and connecting the material rods; the limiting part is rotatably arranged in the clamping groove and comprises a cam, the cam is provided with a limiting circumferential surface, and the limiting circumferential surface faces to the groove opening of the clamping groove and is used for limiting the material rod inserted into the clamping groove. The utility model discloses the centre gripping subassembly through set up rotatable cam in the centre gripping groove, can adjust the degree of depth that the material stick was pegged graft through rotating cam, to the adjustment of precision, facilitates the use when having promoted the use.

Description

Clamping assembly

Technical Field

The utility model relates to a drill bit centre gripping technical field, in particular to centre gripping subassembly.

Background

PCB, the chinese name is printed circuit board, and PCB need use a little to bore in the course of working, and the little brill needs to use anchor clamps in the course of working to fix, but present anchor clamps installation back can't carry out the precision adjustment to the degree of depth of boring the centre gripping a little according to the technological requirement for anchor clamps need higher assembly precision when the assembly, are unfavorable for the assembly.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a centre gripping subassembly aims at solving the unable technical problem according to the technological requirement of anchor clamps, adjustment anchor clamps centre gripping degree of depth.

In order to achieve the above object, the utility model provides a clamping assembly includes:

the clamping seat is provided with a clamping groove for inserting the material rods;

the limiting part is rotatably arranged in the clamping groove and comprises a cam, the cam is provided with a limiting circumferential surface, and the limiting circumferential surface faces to the groove opening of the clamping groove and is used for limiting the material rods inserted into the clamping groove.

Optionally, the cam includes a connecting column and a butting column, the connecting column is rotatably mounted on the holder, the butting column is connected to the end face of the connecting column, and the axis of the butting column deviates from the rotation axis of the connecting column.

Optionally, a mounting groove is formed in the side wall of the clamping seat, the mounting groove penetrates through the groove wall of the clamping groove, the connecting column is in rotating fit with the mounting groove, and the abutting column extends into the clamping groove.

Optionally, the limiting part comprises an adjusting end, and the adjusting end is connected to the outer end of the connecting column and exposed in the mounting groove for adjustment.

Optionally, the clamping assembly further comprises a retaining member;

the holder still includes the locking hole, the locking hole runs through the cell wall of mounting groove, the retaining member passes through the locking hole locking the locating part.

Optionally, the clamping groove has a clamping wall, and the cam protrudes from the clamping wall;

the clamping assembly further comprises a clamping arm which is rotatably arranged in the clamping groove so as to clamp the material rods on the clamping wall.

Optionally, an activity space is formed in the holder;

the clamping arm comprises a connecting part, a clamping end and a transmission end, the connecting part is rotatably arranged in the clamping groove, the clamping end and the transmission end are respectively arranged on two sides of the rotating axis of the connecting part, and the transmission end is positioned in the movable space;

the clamping assembly further comprises an elastic piece, the elastic piece is arranged in the movable space, one end of the elastic piece is abutted against the inner wall of the movable space, and the other end of the elastic piece is abutted against the transmission end, so that the clamping end clamps the material rod.

Optionally, the transmission end is convexly provided with a limiting protrusion, and the elastic piece is sleeved on the limiting protrusion.

Optionally, the holder is provided with a through hole, and the through hole penetrates through the movable space;

the clamping assembly comprises an adjusting piece, and the adjusting piece is installed on the through hole and is in crimping connection with one end, far away from the transmission end, of the elastic piece.

Optionally, the peripheral wall of the adjusting part is provided with an external thread, the inner wall of the through hole is provided with an internal thread, and the internal thread is in threaded fit with the external thread.

The utility model discloses the centre gripping subassembly is through setting up the centre gripping groove on the holder for supply the material stick to peg graft, the centre gripping inslot sets up the cam, and the cam can be at centre gripping inslot rotation, the global notch setting towards the centre gripping groove of cam. Because the rotation center of the cam is fixed and the cam is provided with a curved surface eccentric to the rotation axis, when the cam rotates in the clamping groove, the distance between the curved surface of the cam and the notch of the clamping groove changes along with the rotation of the cam. Therefore, after the material rod is inserted into the clamping groove, the cam can be rotated according to the process requirement so as to adjust the depth of the material rod inserted into the clamping groove. In addition, because the rotating axis of the cam is shorter than the protruding distance of the cam, when the inserting depth of the material rod is adjusted, the rotating range can be larger, so that the convenience in adjustment is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a viewing angle of an embodiment of the clamping assembly of the present invention;

FIG. 2 is a schematic structural view of another perspective of one embodiment of the clamping assembly of the present invention;

FIG. 3 is a cross-sectional view at AA in FIG. 2;

fig. 4 is an exploded view of an embodiment of the clamping assembly of the present invention;

fig. 5 is a schematic structural view of a limiting member according to an embodiment of the clamping assembly of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						1	Clamp base	21	Cam wheel	41	Clamping end
11	Clamping groove	211	Connecting column	42	Driving end
						12	Mounting groove	212	Abutting column	421	Spacing protrusion
13	Locking hole	213	Adjusting terminal	43	Connecting part
						14	Movable space	3	Material rod	5	Elastic piece
15	Through hole	4	Clamping arm	6	Adjusting part
						2	Position limiting piece

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a centre gripping subassembly.

In the embodiment of the present invention, as shown in fig. 1 to 5, the clamping assembly includes:

the material rod clamping device comprises a clamping seat 1, wherein the clamping seat 1 is provided with a clamping groove 11 for the insertion of a material rod 3;

the limiting part 2, the limiting part 2 is rotatably arranged in the clamping groove 11, the limiting part 2 comprises a cam 21, the cam 21 has a limiting circumferential surface, and the limiting circumferential surface faces the notch of the clamping groove 11 and is used for limiting the material rod 3 inserted into the clamping groove 11.

In the present embodiment, the shape of the holder 1 is not particularly limited, and only needs to be a carrying carrier. The size of the clamping groove 11 needs to be larger than the external contour of the material rod 3 to be clamped, and the size of the clamping groove needs to be slightly larger than the external contour, so that the material rod 3 can be clamped conveniently. The holding groove 11 is provided at an edge or an end of the holder 1, and is not particularly limited herein, and may be used to hold the material bar 3. For example, when the clamping groove 11 is disposed at one end of the clamping seat 1, the clamping groove 11 extends toward the inner direction of the clamping seat 1 at the end surface of the clamping seat 1, so that the material rod 3 can be inserted into the clamping groove 11 to achieve the fixing purpose. The arrangement of the holding groove 11 at the end of the holder 1 is advantageous in reducing the swelling of the holder 1, reducing the area occupied by the holder 1, and in facilitating the miniaturization.

The cross-sectional shape of the cam 21 can be oval or eccentric, and is not limited in particular, and the depth of the material rod 3 clamped by the clamping groove 11 can be adjusted after the cam 21 is arranged in the clamping groove 11. For example, when the cam 21 is an ellipse, the curved surface of the cam 21 faces the groove opening of the holding groove 11, the cam 21 can be rotatably mounted on the inner wall of the holding groove 11, and since the wall surface of the cam 21 has large roundness deviation and low coaxiality, when the cam 21 rotates around the rotation axis, the distance between the curved surface of the cam 21 and the groove opening of the holding groove 11 changes along with the rotation of the cam 21. Thus, after the material bar 3 is inserted into the clamping groove 11, the cam 21 can be rotated according to the process requirement to adjust the depth of the bar inserted into the clamping groove 11. In addition, since the eccentricity of the cam 21 is small and the cam 21 is rotated at a fixed place, the cam 21 has high adjustment accuracy and convenience of adjustment, and thus, is convenient to use.

The utility model discloses the centre gripping subassembly is through setting up centre gripping groove 11 on holder 1 for supply material stick 3 to peg graft, set up cam 21 in the centre gripping groove 11, cam 21 can be at 11 internal rotations in centre gripping groove, the global notch setting towards centre gripping groove 11 of cam 21. Since the rotation center of the cam 21 is fixed and the cam 21 has a curved surface eccentric to the rotation axis center, when the cam 21 rotates in the holding groove 11, the distance between the curved surface of the cam 21 and the notch of the holding groove 11 changes with the rotation of the cam 21. Thus, after the material bar 3 is inserted into the clamping groove 11, the cam 21 can be rotated according to the process requirement to adjust the depth of the bar inserted into the clamping groove 11. In addition, because the distance between the rotating axis of the cam 21 and the protrusion of the cam 21 is small, when the inserting depth of the material rod 3 is adjusted, the rotating range can be large, and therefore, the convenience in adjustment is improved.

Specifically, as shown in fig. 2 to 5, the cam 21 includes a connecting column 211 and a butting column 212, the connecting column 211 is rotatably mounted on the holder 1, the butting column 212 is connected to an end face of the connecting column 211, and an axial center of the butting column 212 is offset from a rotational axis of the connecting column 211.

The cross-sectional shape of the connecting column 211 may be circular or square, and the like, and is not particularly limited herein, and may be used as a medium for connection. Spliced pole 211 is rotatable to be set up on holder 1, and the mode of setting can be through the shelf with spliced pole 211 rotatable fix on holder 1, also can set up the hole on holder 1 and fix spliced pole 211 etc. do not do specific restriction here, rotatable setting can at holder 1. The cross section of the abutment post 212 may be disposed in an elliptical shape or a circular shape, and is not particularly limited thereto. Can follow the connecting column 211 and rotate and then generate eccentricity. For example, when the cross-section of the abutment post 212 is circular, the connection between the abutment post 212 and the connection post 211 is eccentric. When the connecting post 211 is rotated, the abutting post 212 follows the connecting post 211 to rotate eccentrically. In this way, the abutment post 212 changes the distance from the notch of the clamping groove 11 to the curved surface of the abutment post 212 to limit the insertion depth of the abutment post 212 into the clamping groove 11. In addition, because the abutting column 212 and the connecting groove are eccentrically arranged and the eccentric amplitude is small, when the connecting column 211 is rotated as required, the adjusting abutting column 212 can have high adjusting precision. Secondly, because the adjustment mode is rotation adjustment, when rotating the connecting column 211, the connecting column 211 can not displace, so the precision after adjustment can be further improved.

As shown in fig. 2 to 5, a mounting groove 12 is formed in a side wall of the holder 1, the mounting groove 12 penetrates through a wall of the holding groove 11, the connecting column 211 is rotatably matched with the mounting groove 12, and the abutting column 212 extends into the holding groove 11. The limiting member 2 includes an adjusting end 213, and the adjusting end 213 is connected to the outer end of the connecting column 211 and exposed in the mounting groove 12 for adjustment. The clamping assembly further comprises a retaining member; the holder 1 has still seted up locking hole 13, locking hole 13 runs through the cell wall of mounting groove 12, the retaining member passes through locking hole 13 locks locating part 2.

In order to install the connecting column 211, an installation groove 12 is formed in the holder 1, and the size of the installation groove 12 is slightly larger than that of the connecting column 211, so that the connecting column 211 can rotate in the installation groove 12. The mounting groove 12 is disposed on a side wall of the holder 1 and extends toward the holding groove 11, and the mounting groove 12 penetrates the holding groove 11. So that the abutment post 212 is disposed in the clamping groove 11 through the mounting groove 12. In order to facilitate the rotation of the connecting column 211, an end of the connecting column 211 facing away from the abutment column 212 is provided with an adjustment end 213. The end of the adjusting end 213 away from the abutting column 212 may be provided with an inner hexagon, or may be provided with a hand-screwing protrusion, which is not limited herein, and the connecting portion 43 may be rotated. For example, when the adjusting end 213 has an inner hexagon, the connecting portion 43 needs to be rotated by an adaptive inner hexagon wrench. Thus, the adjusting end 213 is prevented from protruding out of the holder 1, and the interference between other parts and the adjusting end is avoided. The type of the locking member may be a bolt. The inner connecting part 43 can be fixed after adjustment to ensure the insertion accuracy of the material rods 3. The clamping seat 1 has been seted up locking hole 13, and the size of locking hole 13 is equivalent with the retaining member size, and locking hole 13 extends towards mounting groove 12 direction to wear out the inner wall setting of mounting groove 12. Thus, the locking member can pass through the locking hole 13 to press and fix the connecting member, thereby achieving the purpose of locking the connecting member.

As shown in fig. 3, the clamping groove 11 has a clamping wall, and the cam 21 protrudes from the clamping wall; the clamping assembly further comprises a clamping arm 4, and the clamping arm 4 can be rotatably arranged in the clamping groove 11 so as to clamp the material rod 3 on the clamping wall. The clamping wall is positioned on the inner wall of one side of the clamping groove 11 and is used for matching with the clamping arm 4 to clamp an object rod. The shape of the clamping arm 4 is not particularly limited, and the clamping arm can be matched with a clamping wall to clamp the material rod 3. The clamping arm 4 can be rotatably arranged in the clamping groove 11 and extends along the length direction of the clamping groove 11, and the clamping arm 4 can approach and leave towards the clamping wall in the clamping groove 11, so that the clamping purpose is achieved. For example, when the clamping arm 4 clamps, the material rod 3 is inserted into the clamping groove 11, and the end of the clamping arm 4 close to the notch of the clamping groove 11 moves towards the direction of the clamping wall, so as to press and fix the material rod 3, thereby achieving the purpose of clamping.

As shown in fig. 3, a movable space 14 is formed in the holder 1; the clamping arm 4 comprises a connecting part 43, a clamping end 41 and a transmission end 42, the connecting part 43 is rotatably arranged in the clamping groove 11, the clamping end 41 and the transmission end 42 are respectively arranged at two sides of the rotating axis of the connecting part 43, and the transmission end 42 is positioned in the movable space 14; the clamping assembly further comprises an elastic piece 5, the elastic piece 5 is arranged in the movable space 14, one end of the elastic piece 5 abuts against the inner wall of the movable space 14, and the other end of the elastic piece 5 abuts against the transmission end 42, so that the clamping end 41 clamps the material rod 3. The transmission end 42 is convexly provided with a limit protrusion 421, and the elastic element 5 is sleeved on the limit protrusion 421.

The movable space 14 is connected with the clamping groove 11, so that one end of the clamping arm 4 is arranged in the movable space 14, the elastic part 5 drives the clamping arm 4 to clamp the material rod 3 inserted in the clamping groove 11 in the movable space 14, the size of the movable space 14 is equal to that of the elastic part 5, and the size of the movable space 14 is slightly larger than that of the elastic part 5, so that the elastic part 5 can move in the movable space 14. In order to clamp the material rod 3 by the clamping arm 4, the clamping arm 4 includes a connecting portion 43, a clamping end 41 and a driving end 42. The shape of the connecting portion 43 is not particularly limited, and the clamping end 41 can be driven to clamp, and the connecting portion 43 can rotate in the clamping groove 11. The shape of the clamping end 41 is not particularly limited, and can be used for reinforcement. The clamping end 41 is arranged at one end of the connecting part 43 close to the notch of the clamping groove 11, and the clamping end 41 is fixedly connected with the connecting part 43. The driving end 42 is disposed at one end of the connecting portion 43 located at the movable space 14, and the driving end 42 is fixedly connected with the connecting member portion. When the elastic member 5 presses the transmission end 42, the connection portion 43 is used as a rotation axis, and the connection portion 43 drives the clamping end 41 to move toward the clamping arm, thereby achieving the purpose of clamping. The elastic member 5 is of the type of a spring. For example, when the elastic member 5 is disposed in the movable space 14, one end of the elastic member 5 abuts against the inner wall of the movable space 14, and the other end abuts against the transmission end 42. Thus, the purpose of driving the clamping end 41 to clamp is achieved. By providing the elastic member 5 as a spring, it is advantageous to reduce the space, thereby being advantageous to reduce the bulkiness of the product.

In order to make the connection between the elastic element 5 and the transmission end 42 more stable, the transmission end 42 is convexly provided with a limiting protrusion 421, and the shape of the limiting protrusion 421 is not particularly limited, so that the elastic element 5 can be limited to move at the transmission end 42. For example, when the shape of the limiting protrusion 421 is a cylindrical protrusion, the cylindrical protrusion extends from the transmission end 42 toward the elastic element 5, and the elastic element 5 is sleeved in the cylindrical protrusion, so that when the elastic element 5 drives the transmission end 42 to extend, the elastic element 5 moves along with the transmission end 42, and the cylindrical protrusion blocks the elastic element 5 from moving at the transmission end 42, thereby preventing the transmission end 42 from being lost due to friction of the elastic element 5 at the transmission end 42.

As shown in fig. 3 and 4, the holder 1 is provided with a through hole 15, and the through hole 15 penetrates through the movable space 14; the clamping assembly comprises an adjusting piece 6, and the adjusting piece 6 is arranged in the through hole 15 and is pressed on one end of the elastic piece 5 far away from the transmission end 42. The peripheral wall of the adjusting piece 6 is provided with an external thread, the inner wall of the through hole 15 is provided with an internal thread, and the internal thread is in threaded fit with the external thread.

In order to adjust the pressure of the elastic element 5, the holder 1 is provided with a through hole 15 penetrating the movable space 14. The through hole 15 is provided at the region where the elastic member 5 abuts against the inner wall of the movable space 14. Regulating part 6 can move about in through-hole 15, for regulating part 6 is more convenient for adjust, and the outer wall of regulating part 6 is equipped with the external screw thread, and the inner wall of through-hole 15 is equipped with interior bolt, and regulating part 6 penetrates activity space 14 through the screw-thread fit to extrude and relax elastic component 5, so reach the elasticity of adjusting the output of elastic component 5. For example, when the elastic force of the elastic member 5 is insufficient, the elastic force of the elastic member 5 can be increased by adjusting the extrusion of the adjusting member 6 on the elastic member 5, thereby achieving the purpose of adjusting the elastic force of the elastic member 5.

In addition, a through driving hole is formed on the opposite side of the through hole 15, and the driving hole is used for driving the transmission end 42 to move towards the elastic piece 5 so as to open the clamping end 41. In order to open the clamping end 41, a driving hole is formed on the opposite side of the through hole 15, the size of the driving hole is not particularly limited, and the driving end 42 can be driven to move towards the elastic member 5 through the driving hole. So that the driving end 42 drives the clamping end 41 to open for clamping and unloading the material rod 3.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A clamping assembly, comprising:

the clamping seat is provided with a clamping groove for inserting and connecting the material rods;

the limiting part is rotatably arranged in the clamping groove and comprises a cam, the cam is provided with a limiting circumferential surface, and the limiting circumferential surface faces to the groove opening of the clamping groove and is used for limiting the material rod inserted into the clamping groove.

2. The clamping assembly of claim 1, wherein said cam includes an attachment post rotatably mounted to said cartridge and an abutment post connected to an end surface of said attachment post, said abutment post having an axial center offset from an axis of rotation of said attachment post.

3. The assembly of claim 2, wherein the sidewall of the holder defines a mounting slot extending through a wall of the clamping slot, the connecting post is rotatably engaged with the mounting slot, and the abutment post extends into the clamping slot.

4. The clamping assembly of claim 3, wherein said retaining member includes an adjustment end, said adjustment end being connected to an outer end of said connecting post and exposed to said mounting slot for adjustment.

5. The clamp assembly of claim 3, further comprising a locking member;

the holder has still been seted up the locking hole, the locking hole runs through the cell wall of mounting groove, the retaining member passes through locking hole locking the locating part.

6. The clamping assembly of any one of claims 1 to 5 wherein said clamping slot has a clamping wall, said cam projecting from said clamping wall;

the clamping assembly further comprises a clamping arm which is rotatably arranged in the clamping groove so as to clamp the material rod on the clamping wall.

7. The clamping assembly of claim 6, wherein a clearance space is formed in said cartridge;

8. The assembly of claim 7, wherein the driving end has a protrusion, and the resilient member is disposed around the protrusion.

9. The clamping assembly of claim 7, wherein said holder defines a through hole, said through hole extending through said active space;

10. The clamping assembly of claim 9 wherein said adjusting member peripheral wall is provided with external threads and said through bore inner wall is provided with internal threads, said internal threads being threadably engaged with said external threads.