CN218341575U

CN218341575U - Anchor clamps structure suitable for narrow operation space

Info

Publication number: CN218341575U
Application number: CN202222226711.3U
Authority: CN
Inventors: 马君
Original assignee: Shanghai Suzhen Machinery Manufacturing Co ltd
Current assignee: Shanghai Suzhen Machinery Manufacturing Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-01-20
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to the technical field of machining equipment, in particular to a clamp structure suitable for narrow working space, which comprises a first base, a clamping station is arranged on the first base, a part is placed on the clamping station, a clamping component is arranged on the first base, and the clamping component is positioned on one side of the clamping station; the clamping assembly comprises a second base, a propelling cylinder and a push rod, the push rod is of a snake-shaped structure and is provided with two horizontal sections and a vertical section, the two horizontal sections are placed up and down, the upper end of the vertical section is connected with the rear end of the upper horizontal section to form a first bending point, the lower end of the vertical section is connected with the front end of the lower horizontal section to form a second bending point, and the rear end of the lower horizontal section is rotatably connected with the second base; the propulsion cylinder is connected with the second base, the extending end of the horizontally telescopic rod of the propulsion cylinder rotates to be connected with the first bending point of the snake-shaped structure of the push rod, and the second base is connected with the first base. The utility model discloses simple structure, the clamp force is strong, and the centre gripping operation is nimble, the centre gripping of adaptable multiclass special parts.

Description

Anchor clamps structure suitable for narrow operation space

Technical Field

The utility model relates to a machining equipment technical field, concretely relates to anchor clamps structure suitable for narrow operation space.

Background

In a modern industrial scene, for example, in the production and processing operation of parts with higher added value such as automobile parts, an automatic clamping device is generally adopted to clamp the parts in order to improve the production efficiency, and then the parts are matched with an automatic processing tool to carry out high-speed production and processing. Since such a clamping device is often driven by an air cylinder, the movement path of the clamping head is generally linear. The processing positions of some parts are provided with continuous irregular curved surfaces, the concave structures on the opposite sides of the processing surfaces are usually fixed for conveniently processing the outer convex surfaces of the continuous curved surfaces, and at the moment, the clamping heads are usually stretched into the concave structures to be tightly pushed against one of the concave structures, so that the whole structure is fixed on the clamp.

Fig. 6 shows a part with a continuous curved surface, when such a part is clamped, a position is generally found at a concave position 902 corresponding to the reverse side of a machined surface 901 as an acting point of a clamping head, in the structure shown in the figure, a bottom surface 9021 is generally selected as the acting point of the clamping head, and the bottom surface 9021 is pressed against a certain flat clamping surface from top to bottom through the clamping head, so that the part has a stable machining state, and a machining tool can machine all the machined surfaces conveniently. However, the part shown in fig. 6 has a limitation of clamping space, and the clamping position of the part is blocked by the upper structure 903 of the bottom surface 9021 in the vertical direction, so that the clamping head cannot be pressed down along a straight line from top to bottom; or even though fig. 6 shows that the structure is free from the obstruction of the structure 903, the clamping head cannot accurately fall at the clamping position when the clamping head moves vertically downward because the moving path of the clamping head in the vertical direction cannot keep a vertical straight line (here, the clamping position of the clamping head is assumed to be within a dotted circle on the bottom surface 9021 of the structure of fig. 6) due to the influence of the curved surface structure of the processing surface 901. Therefore, the clamping of such parts is often not accomplished with automated clamping devices. And the clamping is carried out by manual operation, after the clamping head needs to be horizontally stretched, the connecting rod or the handle structure connected with the clamping head is fixed outside the concave structure of the part. The whole clamping process is time-consuming and labor-consuming, and the production progress of the whole production line is easy to slow.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applicable to narrow operation space's anchor clamps structure, technical problem more than solving.

The utility model provides a technical problem can adopt following technical scheme to realize:

a clamp structure suitable for a narrow working space comprises a first base, wherein a clamping station is arranged on the first base, a part to be processed is placed on the clamping station, a clamping assembly is arranged on the first base, and the clamping assembly is positioned on one side of the clamping station;

the clamping assembly comprises a second base, a propelling cylinder and a push rod, the push rod is of a snake-shaped structure and is provided with two horizontal sections and a vertical section, the two horizontal sections are arranged up and down, the upper end of the vertical section is connected with the rear end of the upper horizontal section to form a first bending point, the lower end of the vertical section is connected with the front end of the lower horizontal section to form a second bending point, and the rear end of the lower horizontal section is rotatably connected with the second base;

the propulsion cylinder is connected with the second base, the extension end of a horizontally telescopic rod of the propulsion cylinder is rotatably connected with a first bending point of the snake-shaped structure of the push rod,

the second base is connected with the first base.

The utility model discloses a to the permutation and combination of other structures of cylinder and anchor clamps, provide an automatic change lever structure's anchor clamps, the pushing rod through serpentine structure converts the propulsive effect of the cylinder of horizontal direction into the holding down force of vertical direction, realizes carrying out the automation to the narrow space of part indent structure and presss from both sides the dress, improves and presss from both sides dress efficiency, and the cooperation automation line ensures production efficiency.

A turntable assembly is arranged on the first base, and a part to be processed is placed on the turntable assembly;

the clamping assembly is located on one side of the turntable assembly.

The utility model discloses a placing of processing part is realized waiting to the revolving stage subassembly, makes the part rotatable, and the centre gripping subassembly that deuterogamies to be located revolving stage subassembly one side realizes carrying out the effect of centre gripping to some parts that have crooked sunk structure in vertical direction to the part realizes the rotation type clamping action around a certain center is rotatory, can effectively dodge out the great action space of the clamping head (the end that pushes down of push rod) activity of being convenient for in the centre gripping operation of pressing from both sides dress special parts.

The turntable assembly comprises a turntable, parts are placed on the turntable, and the turntable is rotatably connected with the first base.

The turntable assembly comprises a rotary cylinder, the rotary cylinder is fixed on the first base, and the turntable is rotatably connected with the rotary cylinder.

The turntable assembly comprises a rotating motor, the rotating motor is connected with a speed reducing mechanism, and the turntable is connected with the speed reducing mechanism.

Be equipped with the fastening hole on the carousel, set up fastening bolt etc. fastener through the fastening hole after, realize fixing the part.

The propulsion cylinder is rotatably connected with the second base, and the connecting position is located on the rear side of the second bending point.

The end face of the pressing end of the push rod is provided with a gasket so as to reduce damage to the part caused by clamping.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses simple structure, the clamp force is strong, and the centre gripping operation is nimble, the centre gripping of adaptable multiclass special parts.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 as viewed from an opposing angle;

FIG. 3 is a schematic view of the arrangement of FIG. 1 with the push rod retracted;

fig. 4 is a schematic structural view of the clamping assembly of the present invention;

fig. 5 is a schematic structural view of the turntable of the present invention;

fig. 6 is a schematic view of a part suitable for clamping in the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1, 2 and 3, the fixture structure suitable for the narrow working space comprises a first base 1, wherein a clamping station is arranged on the first base 1, a part 9 to be processed is placed on the clamping station, a clamping assembly is arranged on the first base 1, and the clamping assembly is located on one side of the clamping station.

The clamping assembly comprises a second base 2, a propelling cylinder 3 and a push rod 4, wherein the push rod 4 adopts a serpentine structure (or called as a Z-shaped structure), and the push rod with the serpentine structure is arranged according to the following structure: as shown in fig. 4, the push rod 4 has two horizontal sections and a vertical section 401, the two horizontal sections include an upper horizontal section 4021 and a lower horizontal section 4022, after the two sections are vertically spaced, the upper end of the vertical section 401 is connected to the rear end of the upper horizontal section 4021 to form a first bending point 4001, the lower end is connected to the front end of the lower horizontal section 4022 to form a second bending point 4002, and the rear end of the lower horizontal section 4022 is rotatably connected to the second base 2;

the propulsion cylinder 3 is connected with the second base 2, the extension end of the horizontally telescopic rod 301 is rotationally connected with the first bending point 4001 of the snake-shaped structure of the push rod 4,

the second chassis 2 is connected to the first chassis 1.

In some embodiments, as shown in fig. 1, 2 and 3, in the case of providing the second base 2, a raising block 7 may be further provided between the second base 2 and the first base 1 to raise the setting height of the propulsion cylinder 3.

In other embodiments, as shown in fig. 4, the end of the telescopic rod of the propulsion cylinder 3 may be provided with a clamping jaw structure, the clamping jaw structure includes two clamping plates parallel to each other, and one end of the two clamping plates on the same side is fixedly connected to the extending end of the telescopic rod of the propulsion cylinder. Two splint centre gripping of this clamping jaw structure are in first turning point 4001's subtend both sides, and rethread round pin axle passes two splint and first turning point 4001 to make the round pin axle can't break away from after blocking with the jump ring, thereby make the rotating-structure of cylinder telescopic link and first turning point more firm. The lower horizontal section 4022 of the push rod 4 can also adopt a structure in which two parallel clamping plates are arranged and then clamped at the second bending point 4002, and another pin shaft is matched with a clamp spring to reinforce the rotating connection structure of the push rod 4 and the second base 2.

The utility model discloses for traditional automatic anchor clamps, by promoting cylinder and push rod combination action back, can make the leading action in the centre gripping action to the part begin by the part side, and the restriction is vertical action in the non-traditional operation to can deal with like the centre gripping scene of the special part of fig. 6.

Fig. 3 shows a structure in which, after a part 9 is placed at a clamping station, a push rod 4 and a propulsion cylinder 3 are located at the side (right side) of the part 9, and at this time, a telescopic rod of the propulsion cylinder 3 is in a retracted state, and the push rod 4 is pulled out of a clamping position;

in the structure shown in fig. 1, after the telescopic rod of the propulsion cylinder 3 is pushed out, the pressing end of the push rod 4 is pushed into the concave structure of the part 9 from the side of the part under the action of the snake-shaped structure of the push rod 4, and finally the pressing end is pressed at the clamping position of the part 9.

It should be noted that the propulsion cylinder 3 of the present invention can be replaced by an electric cylinder or a hydraulic cylinder to push and pull the push rod 4.

The utility model discloses a realize the more nimble setting in route of pushing down of push rod, can set up according to following structure:

a rotary table component is arranged on the first base 1, and the part 9 is placed on the rotary table component; the clamping assembly is located on one side of the turntable assembly. The rotary table component can rotate parts to be processed after the parts are placed, and the clamping component positioned on one side of the rotary table component is matched to realize the effect of clamping parts with bent concave structures in the vertical direction, so that the parts rotate around a certain center to realize rotary clamping action, and a larger action space which is convenient for the movement of a clamping head (a pressing end of a push rod) can be effectively avoided in the clamping operation of clamping special parts.

In operation, as shown in fig. 3, the part 9 is rotated to a proper position by the turntable assembly, and then the pressing end 403 of the push rod 4 can be vertically pressed in from the top notch of the part 9, and then the part 9 is rotated to a certain angle along with the downward pressing end 403 in the process of gradually pressing down the pressing end 403, so that the pressing end 403 has a non-vertical straight downward pressing path relative to the recessed structure of the part 9, and thus the pressing end 403 is finally pressed down to a planned contact position after bypassing each blocking structure in the recess of the part 9 (such blocking structure cannot be clearly seen in the structure shown in fig. 3, and can be referred to as the blocking structure 903 in the structure shown in fig. 6), and after the pushing cylinder 3 is pushed tightly, the pressing end 403 is pressed at the position, so that the part 9 is firmly fixed.

The utility model discloses can further set up the revolving stage subassembly according to following structure: as shown in fig. 1, 2 and 3, the turntable assembly includes a turntable 5, a component 9 is placed on the turntable 5, and the turntable 5 is rotatably connected to the first base 1 (here, the turntable 5 may be regarded as being rotatably connected to the first base in an indirect connection manner through an intermediate structure, or the turntable 5 may be regarded as being directly rotatably connected to the first base 1 after a rotary cylinder in the structure of fig. 1 to 3 is omitted).

The utility model discloses can further set up the drive carousel of being convenient for behind the revolving stage subassembly according to following structure rotatory: as shown in fig. 1, 2 and 3, the turntable assembly includes a rotary cylinder 6, the rotary cylinder 6 is fixed on the first base 1, and the turntable 5 is rotatably connected to the rotary cylinder 6.

Alternatively, the rotary cylinder in the above embodiment may be replaced by a rotary motor, and the electric driving structure is used to rotate the turntable: the turntable assembly comprises a rotating motor, the rotating motor is connected with a speed reducing mechanism, and the turntable is connected with the speed reducing mechanism. Specifically, a motor can be fixed on the first base to serve as a rotating motor, the motor shaft is connected with a speed reducing mechanism, and an output shaft of the speed reducing mechanism is connected with a rotating shaft of the rotating disc. Here, the rotating shaft of the rotating disc is generally connected to the first base, for example, a bearing may be disposed on the first base, and the rotating shaft of the rotating disc is connected to the bearing; and then the connection and linkage between the rotating shaft of the turntable and the output shaft of the speed reducing mechanism are realized by matching with the gear set.

Or, a motor integrated with a speed reducer can be directly selected as a rotating motor to drive the turntable to act. For example, a servo motor is selected as the rotating motor to improve the rotating accuracy and obtain the information of the rotating path.

The utility model discloses do not join in marriage the rotatory structure of this type of motor drive carousel of drawing.

In some of these embodiments, the utility model discloses after setting up the carousel according to following structure, make it have the preliminary clamping action to the part: as shown in fig. 5, a fastening hole 501 is provided in the turntable 5, and a fastening member such as a fastening bolt is provided through the fastening hole 501 to fix the component. Fig. 5 shows that the structure of the rotary table is provided with a plurality of fastening holes on the disc surface, one fastening hole is arranged in the center of the disc, and a plurality of fastening holes are arranged around the fastening hole. After the parts are placed on the upper disc surface of the rotary disc, the fastening bolts can penetrate through the parts placing surface or can be placed in fastening holes in the upper disc surface of the rotary disc close to the parts, and the horizontal displacement of the parts is limited.

According to the embodiment, when fixing the part by the fastening hole matching with the fastening bolt (the fastening piece such as the bolt), whether the through hole is provided or not can be determined according to the placing surface structure of the part, and the following two setting modes are provided:

when the placing surface of the part is provided with a through hole, the fastening bolt can penetrate through the through hole on the placing surface of the part and then extend into a certain fastening hole close to the center of the disc surface on the turntable, so that the part is clamped for the first time;

when the placing surface of the part is not provided with the through hole, the part can be limited to move in the horizontal direction by placing the fastening bolt in the fastening hole beside the part.

In addition, the fastening bolt can be replaced by a bolt with threads, and at the moment, the inner wall of the fastening hole is provided with internal threads, so that the fastening structure is reinforced after the bolt is screwed into the fastening hole, and preliminary clamping on parts is realized.

Additionally, the utility model discloses still can make the propulsion cylinder 3 rotate and connect the second base 2 after, make this cylinder also can overturn certain angle for second base 2, the hookup location is located the rear side of second turning point 4002 (or is located the rotation tie point of second base and push rod). After the structure is arranged, the problem that the stroke is insufficient when the telescopic rod of the air cylinder retracts can be compensated to a certain degree, the space beside the clamping station can be released as much as possible, and parts can be conveniently taken and placed.

The utility model discloses a alleviate the damage of centre gripping action to the part, can set up according to following structure: as shown in fig. 4, an end surface of the pressing end 403 of the push rod 4 is provided with a packing 404. By providing the pad 404 on the push rod pressing end 403, the end of the push rod is pressed down after the part is clamped after the buffer structure is constructed, and the damage to the part clamping position is reduced. The pad 404 may be formed into a pad layer structure by attaching rubber or silicone to the end surface of the push rod pressing end 403.

To sum up, the utility model discloses a to the permutation and combination of other structures of cylinder and anchor clamps, provide an automatic anchor clamps of lever structure, the pushing action of the push rod through serpentine structure with the cylinder of horizontal direction converts the holding down force of vertical direction into, realizes carrying out the automation to the narrow space of spare part indent structure and presss from both sides the dress, improves and presss from both sides dress efficiency, and the cooperation automation line ensures production efficiency.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A clamp structure suitable for a narrow operation space comprises a first base, wherein a clamping station is arranged on the first base, and a part to be processed is placed on the clamping station;

the clamping assembly comprises a second base, a propelling cylinder and a push rod, the push rod is of a snake-shaped structure and is provided with two horizontal sections and a vertical section, the two horizontal sections are placed up and down, the upper end of the vertical section is connected with the rear end of the upper horizontal section to form a first bending point, the lower end of the vertical section is connected with the front end of the lower horizontal section to form a second bending point, and the rear end of the lower horizontal section is rotatably connected with the second base;

the second base is connected with the first base.

2. The structure of a clamp suitable for a narrow working space according to claim 1, wherein a turntable assembly is provided on the first base, and a part to be processed is placed on the turntable assembly;

the clamping assembly is located on one side of the turntable assembly.

3. The structure of a clamping apparatus for a narrow working space according to claim 2, wherein said turntable assembly includes a turntable on which the parts are placed, said turntable being rotatably connected to said first base.

4. The clamp structure suitable for narrow working space according to claim 3, wherein the turntable assembly includes a rotary cylinder, the rotary cylinder is fixed on the first base, and the turntable is rotatably connected with the rotary cylinder.

5. The structure of a clamping apparatus for narrow working space as claimed in claim 3, wherein said turntable assembly includes a rotary motor, said rotary motor is connected to a speed reducing mechanism, and said turntable is connected to said speed reducing mechanism.

6. The structure of a clamp suitable for a narrow working space according to claim 3, 4 or 5, wherein the turntable is provided with fastening holes.

7. The structure of a clamping apparatus for a narrow working space as claimed in any one of claims 1 to 5, wherein said propulsion cylinder is rotatably connected to said second base at a position rearward of said second bending point.

8. The structure of a clamping apparatus for a narrow working space as claimed in claim 6, wherein said propulsion cylinder is rotatably connected to said second base at a position rearward of said second bending point.

9. The structure of a clamp suitable for a narrow working space according to claim 1, wherein an end surface of the push rod at the push-down end is provided with a packing.