CN218051358U

CN218051358U - Hardware clamping structure

Info

Publication number: CN218051358U
Application number: CN202220871067.2U
Authority: CN
Inventors: 伍敏; 宋世忠
Original assignee: Huizhou Zhijing Technology Co ltd
Current assignee: Huizhou Zhijing Technology Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-12-16
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a five metals clamping structure, it belongs to the technical field of automation equipment, and it includes: base, reference column, arm lock, base and a plurality of U-shaped apron. The base is provided with a countersunk through hole and a pre-positioning hole; the countersunk head through hole is provided with a countersunk groove and a through hole. The sink is arranged on the top of the through hole. The inner side of each countersunk head through hole is provided with a prepositioning hole which penetrates through the upper end and the lower end of the base. The two positioning columns are respectively matched with each pre-positioning hole and movably connected; the two clamping arms are respectively connected with each countersunk head through hole in a matching way. The base is provided with two reference holes, a plurality of installation parts and two fixing holes. The two reference holes are respectively matched with a positioning column and movably connected; each mounting portion is provided with a trapezoidal clamping block and an end face clamping block. Two ends of each mounting part are respectively provided with an end surface clamping block. The two fixing holes are respectively arranged between every two adjacent mounting parts. The utility model provides a prior art unable clamping take the technical problem of curved surface work piece.

Description

Hardware clamping structure

Technical Field

The utility model relates to a technical field of automation equipment especially relates to a five metals clamping structure.

Background

In machine manufacturing, a large number of jigs are required to perform predetermined machining processes, assembly processes, inspection processes, and the like. By using the clamp, the labor productivity can be improved, the processing precision can be improved, and waste products can be reduced; the technological range of the machine tool can be enlarged, and the labor condition of operation is further improved. Therefore, the fixture is an important process equipment in mechanical manufacturing. A machine tool holder is a device on a machine tool for holding a workpiece, the function of which is to bring the workpiece into a correct position relative to the machine tool or tool and to keep this position constant during the machining process. Based on this, chinese patent CN215847036U discloses a CNC jig, which comprises: the device comprises a bottom plate, a fixed seat, a positioning plate, a cover plate and a fastening assembly; the fixed seat, the positioning plate, the cover plate and the fastening assembly are all arranged on the surface of one side of the bottom plate; the fixing seat, the positioning plate and the cover plate are sequentially stacked on one side surface of the bottom plate, and the fastening components are respectively arranged at two ends of the top side surface of the bottom plate and abut against the fixing seat, the mounting plate and the cover plate; the CNC clamp further comprises a plurality of first fixing columns and a plurality of second fixing columns; the first fixing columns are arranged in the positioning plate, and the second fixing columns are arranged in the cover plate; the plurality of second fixing columns correspond to the plurality of first fixing columns one by one, and form clamping spaces with the corresponding first fixing columns. The CNC clamp can solve the technical problem that the stability of an existing flexible clamp is not high enough for workpiece machining precision due to the fact that the existing flexible clamp adopts one-way grabbing or adsorption.

However, the CNC clamp disclosed above cannot clamp a hardware workpiece with a curved surface. Specifically, the CNC fixture disclosed above mainly carries out multi-point position laminating and stable clamping and fixing on workpieces of various shapes through a plurality of first fixing columns on a positioning plate and a plurality of second fixing columns on a cover plate, and the workpieces are clamped tightly through fastening components at two ends of a bottom plate. Therefore, when the hardware workpiece to be clamped and machined has a curved surface structure and needs to be clamped and machined on a multi-axis machine tool, the disclosed CNC clamp cannot effectively and stably clamp the workpiece.

SUMMERY OF THE UTILITY MODEL

Therefore, a hardware clamping structure is needed to be provided for solving the technical problem that a CNC clamp in the prior art cannot clamp a hardware workpiece with a curved surface.

The utility model provides a five metals clamping structure, it includes: base, reference column, arm lock, base and a plurality of U-shaped apron. The base is provided with a countersunk through hole and a pre-positioning hole; the two countersunk through holes are respectively arranged on two sides of the base and are provided with countersunk grooves and through holes. The sinking groove is arranged at the top of the through hole. The inner side of each countersunk head through hole is provided with one pre-positioning hole which penetrates through the upper end and the lower end of the base. The two positioning columns are respectively matched with each pre-positioning hole to be movably connected; and the two clamping arms are respectively connected with each countersunk head through hole in a matching way. The base activity set up in the top of base, and, the base has two benchmark holes, a plurality of installation department and two fixed orificess. The two reference holes are respectively arranged on two sides of the base, and are respectively matched with one positioning column to be movably connected; a plurality of the installation department respectively evenly set up in the top of base, and, each the installation department has trapezoidal joint piece and terminal surface joint piece. The two trapezoidal clamping blocks are respectively and oppositely arranged at two sides of each mounting part; each both ends of installation department respectively are equipped with one the terminal surface joint piece. The two fixing holes are respectively arranged between every two adjacent mounting parts. Each U-shaped cover plate is movably connected with the base and is provided with a locking hole; the locking hole is connected with the fixing hole in a matched mode.

Furthermore, the clamping arm is provided with a right-angle limiting block and a fixed seat; the right-angle limiting block is movably connected with the fixing seat.

Furthermore, the right-angle limiting block is provided with a pressing block and a connecting hole.

Furthermore, the pressing block is arranged on the side face of the right-angle limiting block.

Furthermore, the connecting hole is formed in the middle of the right-angle limiting block.

Furthermore, the fixing seat is provided with a screwing part and a fixing part.

Furthermore, the screwing part is arranged above the fixing part.

Furthermore, four corners of the base are respectively provided with a base locking hole.

Furthermore, the side surface of the base is also provided with a step-shaped chamfer.

To sum up, the utility model relates to a hardware steel sheet die is respectively provided with a base, a positioning column, a clamping arm, a base and a plurality of U-shaped cover plates; two sides of the base are respectively provided with a countersunk through hole so that the clamping arm can be matched, positioned and connected with the base; in addition, the inner sides of the countersunk head through holes are respectively provided with the pre-positioning hole, so that the positioning columns can be matched with the pre-positioning holes and can be used for positioning and connecting the base to the base; furthermore, the installation part arranged on the base is respectively provided with a trapezoidal clamping block and an end surface clamping block; the trapezoidal clamping blocks and the end face clamping blocks can be used for positioning the transverse and longitudinal references of a workpiece with a curved surface special-shaped structure respectively, and the U-shaped cover plate is matched to limit the vertical direction of the workpiece with the curved surface and the cavity; therefore, the workpiece can be effectively positioned and clamped on the base. Therefore, the utility model relates to a hardware clamping structure has solved prior art's CNC anchor clamps and can't carry out the technical problem of clamping to the special-shaped workpiece who has the curved surface.

Drawings

FIG. 1 is a schematic structural view of a hardware clamping structure of the present invention;

FIG. 2 is an exploded schematic view of a hardware clamping structure of the present invention;

fig. 3 is the utility model relates to a hardware clamping structure assembly work piece's schematic structure diagram.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and fig. 3 together, the present invention provides a hardware clamping structure, which includes: base 1, reference column 2, arm lock 3, base 4 and a plurality of U-shaped apron 5. The base 1 is provided with a countersunk through hole 101 and a prepositioning hole 102; the two countersunk through holes 101 are respectively disposed at two sides of the base 1, and the countersunk through holes 101 have a countersunk groove 101a and a through hole 101b. The sink 101a is disposed on the top of the through hole 101b. The inner side of each countersunk through hole 101 is provided with one pre-positioning hole 102, and the pre-positioning hole 102 penetrates through the upper end and the lower end of the base 1. The two positioning columns 2 are respectively matched with each pre-positioning hole 102 to be movably connected; the two clamping arms 3 are respectively connected with each countersunk head through hole 101 in a matching manner. The base 4 is movably disposed above the base 1, and the base 4 has two reference holes 401, a plurality of mounting portions 402, and two fixing holes 403. The two reference holes 401 are respectively arranged on two sides of the base 4, and the two reference holes 401 are respectively matched with one positioning column 2 to be movably connected; the installation parts 402 are respectively and uniformly arranged on the top of the base 4, and each installation part 402 is provided with a trapezoidal clamping block 402a and an end surface clamping block 402b. The two trapezoidal clamping blocks 402a are respectively and oppositely arranged on two sides of each mounting part 402; two ends of each mounting part 402 are respectively provided with one end surface clamping block 402b. The two fixing holes 403 are respectively disposed between every two adjacent mounting portions 402. Each U-shaped cover plate 5 is movably connected with the base 4, and the U-shaped cover plate 5 is provided with a locking hole 501; the locking hole 501 is matched and connected with the fixing hole 403.

Specifically, work as the utility model relates to a five metals clamping structure is used for before the clamping work piece, the user need with earlier base 1 with base 4 assembles. More specifically, the pre-positioning holes 102 formed in the base 1 may be connected with the positioning pillars 2 in a matching manner, and two sides of the base 1 are respectively provided with one pre-positioning hole 102, that is, two positioning pillars 2 may be pre-installed in each pre-positioning hole 102. Two reference holes 401 are correspondingly arranged on two sides of the base 4; each of the reference holes 401 can be correspondingly coupled with one of the positioning posts 2, so that the base 4 can be accurately mounted on the base 1. In particular, the reference hole 401 may be used as a reference of a machine tool to calibrate a tool coordinate in a machining process. Further, the clamping arm 3 can be matched with the countersunk through hole 101 so as to fix the base 4 on the base 1. Then, the installation part 402 arranged on the base 4 is provided with a trapezoidal clamping block 402a and an end surface clamping block 402b; the inclined planes on the two sides of the trapezoidal clamping block 402a can be matched with the bottom of a workpiece, so that the workpiece is clamped and pre-installed on the base 4; moreover, every two trapezoidal clamping blocks 402a are hollowed out to form a groove, so that the weight of the base 4 is reduced, and the base can be conveniently installed on an external machine tool. In addition, two ends of each mounting portion 402 are respectively provided with one end surface clamping block 402b; the end surface engaging blocks 402b are positioned and engaged with both ends of the workpiece, respectively, to prevent the workpiece from shifting on the mounting portion 402 and deviating from the machining area. That is, the trapezoidal clamping blocks 402a and the end surface clamping blocks 402b can clamp and position the workpiece in the transverse direction and the longitudinal direction. Then, a plurality of U-shaped cover plates 5 are further disposed on the base 4, and each U-shaped cover plate 5 matches the fixing hole 403 disposed on the base 4 through the locking hole 501 disposed thereon for paired connection, so that two workpieces respectively clamped on every two mounts 402 are limited and fixed by the U-shaped cover plates 5, and further, clamping limitation on the workpieces in the vertical direction is completed. Moreover, the supporting portions at the two ends of the U-shaped cover plate 5 can be matched with the cavity of the workpiece, so that the workpiece is pressed on the mounting portion 402.

Further, the clamping arm 3 is provided with a right-angle limiting block 301 and a fixed seat 302; the right-angle limiting block 301 is movably connected with the fixed seat 302. Specifically, the right-angle limiting block 301 has a pressing block 301a and a connecting hole 301b; the pressing block 301a is arranged on the side surface of the right-angle limiting block 301; the connecting hole 301b is disposed in the middle of the right-angle stopper 301. In addition, the fixing base 302 has a fastening portion 302a and a fixing portion 302b; the fastening portion 302a is disposed above the fixing portion 302 b. Therefore, the fastening portion 302a provided on the fixing base 302 can pass through the through hole 101b in advance, so that the top end of the fixing portion 302b abuts against the bottom of the base 1; therefore, when the right-angle limiting block 301 is connected to the screwing portion 302a through the connecting hole 301b, the pressing block 301a disposed on the side of the right-angle limiting block 301 can abut against the side of the base 4, and the base 4 is fixed to the base 1 by locking the right-angle limiting block 301 to the fixing base 302. In particular, the base 1 is provided with a countersunk through hole 101 to pre-align and position the right angle stop 301 before installation.

Further, four corners of the base 1 are respectively provided with a base locking hole 103; the base locking hole 103 can facilitate the base 1 to be connected with an external machine tool in a matching way. In addition, a step-shaped chamfer 104 is arranged on the side surface of the base 1; the stepped chamfer 104 can play a role in production error prevention; thereby can avoid the user will when the assembly the utility model relates to a five metals clamping structure dress is anti-reverse.

To sum up, the hardware steel sheet die of the utility model is respectively provided with a base 1, a positioning column 2, a clamping arm 3, a base 4 and a plurality of U-shaped cover plates 5; two sides of the base 1 are respectively provided with a countersunk through hole 101, so that the clamping arm 3 can be matched, positioned and connected with the base 1; in addition, the inner sides of the countersunk through holes 101 are respectively provided with the pre-positioning hole 102, so that the positioning column 2 can be matched with the pre-positioning hole and the base 4 can be positioned and connected to the base 1; further, the mounting part 402 arranged on the base 4 is respectively provided with a trapezoidal clamping block 402a and an end surface clamping block 402b; the trapezoidal clamping block 402a and the end face clamping block 402b can be used for positioning the transverse and longitudinal references of a workpiece with a curved surface special-shaped structure respectively, and the U-shaped cover plate 5 is matched to limit the vertical direction of the workpiece with a curved surface and a cavity; so that the workpiece can be effectively positioned and clamped on the base 4. Therefore, the utility model relates to a hardware clamping structure has solved prior art's CNC anchor clamps and can't carry out the technical problem of clamping to the special-shaped workpiece who has the curved surface.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a five metals clamping structure, its characterized in that, this five metals clamping structure includes: the device comprises a base (1), a positioning column (2), a clamping arm (3), a base (4) and a plurality of U-shaped cover plates (5); the base (1) is provided with a countersunk through hole (101) and a pre-positioning hole (102); the two countersunk through holes (101) are respectively arranged on two sides of the base (1), and the countersunk through holes (101) are provided with a sunken groove (101 a) and a through hole (101 b); the sinking groove (101 a) is arranged at the top of the through hole (101 b); the inner side of each countersunk head through hole (101) is provided with a pre-positioning hole (102), and the pre-positioning holes (102) penetrate through the upper end and the lower end of the base (1); the two positioning columns (2) are respectively matched with each pre-positioning hole (102) to be movably connected; the two clamping arms (3) are respectively connected with each countersunk through hole (101) in a matching way; the base (4) is movably arranged above the base (1), and the base (4) is provided with two reference holes (401), a plurality of mounting parts (402) and two fixing holes (403); the two reference holes (401) are respectively arranged at two sides of the base (4), and the two reference holes (401) are respectively matched with one positioning column (2) to be movably connected; the installation parts (402) are respectively and uniformly arranged on the top of the base (4), and each installation part (402) is provided with a trapezoidal clamping block (402 a) and an end surface clamping block (402 b); the two trapezoidal clamping blocks (402 a) are respectively and oppositely arranged at two sides of each mounting part (402); two ends of each mounting part (402) are respectively provided with the end face clamping blocks (402 b); the two fixing holes (403) are respectively arranged between every two adjacent mounting parts (402); each U-shaped cover plate (5) is movably connected with the base (4), and the U-shaped cover plates (5) are provided with locking holes (501); the locking hole (501) is matched and connected with the fixing hole (403).

2. The hardware clamping structure of claim 1, wherein: the clamping arm (3) is provided with a right-angle limiting block (301) and a fixed seat (302); the right-angle limiting block (301) is movably connected with the fixed seat (302).

3. The hardware clamping structure of claim 2, wherein: the right-angle limiting block (301) is provided with a pressing block (301 a) and a connecting hole (301 b).

4. The hardware clamping structure of claim 3, wherein: the pressing block (301 a) is arranged on the side face of the right-angle limiting block (301).

5. The hardware clamping structure of claim 4, wherein: the connecting hole (301 b) is arranged in the middle of the right-angle limiting block (301).

6. The hardware clamping structure of claim 5, wherein: the fixing base (302) has a fastening portion (302 a) and a fixing portion (302 b).

7. The hardware clamping structure of claim 6, wherein: the fastening portion (302 a) is provided above the fixing portion (302 b).

8. The hardware clamping structure of claim 7, wherein: four corners of the base (1) are respectively provided with a base locking hole (103).

9. The hardware clamping structure of claim 8, wherein: the side surface of the base (1) is also provided with a step-shaped chamfer (104).