CN209919681U

CN209919681U - Plastic F clamp

Info

Publication number: CN209919681U
Application number: CN201920125771.1U
Authority: CN
Inventors: 闫寒光
Original assignee: DURATEC INDUSTRIES Ltd
Current assignee: DURATEC INDUSTRIES Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-01-10
Anticipated expiration: 2029-01-24

Abstract

The utility model provides a plastics F presss from both sides, include: the metal guide arm, install fixed arm and digging arm on the metal guide arm, wherein, fixed arm and digging arm all adopt the plastics material, fixed arm and digging arm respectively through solid round pin with metal guide arm interference fit connects, the other end of digging arm has the screw rod through T type threaded connection, the one end of screw rod is connected with the plastics cup head that is used for supplementary centre gripping through the bulb back-off. The utility model adopts high-strength plastic material for the fixed arm and the movable arm without affecting the clamping force function, and has the advantages of convenient molding, short production period, high efficiency, light weight, small deformation and the like; the assembly process of each part is simple and convenient; low production cost, convenient use and wide production and application prospect.

Description

Plastic F clamp

Technical Field

The utility model belongs to the technical field of machinery, a plastics F presss from both sides is related to.

Background

The F clamp is one of common tools for woodworking, and generally comprises a metal guide rod, wherein a fixed arm and a movable arm are installed on the metal guide rod, a first clamping head is arranged on the fixed arm, a screw rod penetrates through the movable arm, a second clamping head matched with the first clamping head is arranged at the end part of the screw rod, when the F clamp is used, the movable arm slides along the metal guide rod, so that the distance between the first clamping head and the second clamping head is equivalent to the width of a workpiece to be clamped, then the workpiece to be clamped is placed between the fixed arm and the movable arm, and the screw rod is rotated, so that the first clamping head and the second clamping head clamp the workpiece.

However, the existing metal F jig has the following disadvantages:

1. the metal is adopted for manufacturing, and the whole body is heavy and not portable.

2. The production, assembly and manufacturing process is complicated.

3. High manufacturing cost, long production period of castings, large deformation and the like.

SUMMERY OF THE UTILITY MODEL

To the technical problem, an object of the utility model is to provide a plastics F presss from both sides, and this product has advantages such as the equipment is simple, light in weight, warp for a short time, convenient to use, low in production cost, has extensive production, application prospect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a plastic F-clip, comprising: the metal guide arm, install fixed arm and digging arm on the metal guide arm, wherein, fixed arm and digging arm all adopt the plastics material, fixed arm and digging arm respectively through solid round pin with metal guide arm interference fit connects, the other end of digging arm has the screw rod through T type threaded connection, the one end of screw rod is connected with the plastics cup head that is used for supplementary centre gripping through the bulb back-off.

Preferably, the other end of the screw is connected with a handle through interference fit.

Preferably, the fixed arm/movable arm/plastic cup head is made of PA6+ GF30 plastic material.

Preferably, the metal guide rod penetrates through the fixing arm, and the solid pin is pressed in the center of the contact surface of the fixing arm and the metal guide rod.

Preferably, the metal guide rod penetrates through the movable arm, the movable arm presses the solid pins into two opposite corners of the outer side of a contact surface of the movable arm and the metal guide rod respectively, and the solid pins are located beside the metal guide rod respectively and are in contact with the metal guide rod.

Preferably, the tail part of the metal guide rod is provided with a boss seal tail.

Preferably, the other end of the fixing arm is provided with a clamping surface.

Compared with the prior product, the utility model has the advantages that:

1. under the prerequisite that does not influence the power function of pressing from both sides, fixed arm, digging arm all adopt high strength plastics material, have advantages such as shaping convenience, production cycle are short, efficient, light in weight, deformation are little.

2. The assembly process of each part is simple and convenient.

3. Low production cost, convenient use and the like.

Drawings

Fig. 1 is a schematic structural view of a plastic F clip of the present invention.

Fig. 2 is an exploded view of the plastic F-clip of the present invention.

① -fixed arm, ② -phi 5 solid pin, ③ -phi 4 solid pin, ④ -movable arm, ⑤ -metal guide rod, ⑥ -plastic cup head, ⑦ -screw rod and ⑧ -handle.

Detailed Description

In order to make the public fully aware of the technical spirit and advantageous effects of the present invention, the applicant shall describe in detail the embodiments of the present invention with reference to the accompanying drawings, but the description of the embodiments is not limited by the applicant, and any changes made according to the present invention but not essential should be construed as the protection scope of the present invention.

As shown in fig. 1 and 2, the plastic F-clip of the present invention mainly comprises a metal guide ⑤, preferably an iron rod, a fixed arm ① and a movable arm ④ mounted on the metal guide ⑤, and a screw ⑦, wherein the connection relationship of the parts is as follows:

1. the fixed arm ① and the metal guide rod ⑤ are in interference fit, and a phi 5 solid pin ② which is subjected to heat treatment to HRC45 +/-2 degrees is pressed in the middle to be connected, so that firmness is enhanced;

2. the movable arm ④ and the phi 4 solid pin ③ are in press fit and connected in an interference fit mode, the fixed arm ① and the movable arm ④ are both made of high-strength plastic materials PA6+ GF30 through injection molding, the movable arm ④ is made of a phi 4 solid pin ③ through press-in, the phi 4 solid pin ③ is preferably subjected to heat treatment to HRC35 +/-2 degrees, one end of the phi 4 solid pin is knurled, and the movable arm ④ and the metal guide rod ⑤ are guaranteed not to slip and the strength is improved at the same time;

3. the plastic cup head ⑥ and the screw rod ⑦ are connected in a ball head inverted buckle mode, the screw rod ⑦ and the handle ⑧ are in press connection in an interference fit mode, and the plastic cup head ⑥ is preferably made of PA6+ GF30 plastics;

4. the screw ⑦ passes through T type threaded connection with movable arm ④, and movable arm ④ wears on metal guide rod ⑤, and metal guide rod ⑤ afterbody makes the boss seal the tail, adopts T type metal screw can bear great locking force, and the screw pitch is big can lock fast.

The clamping force process of the plastic F clamp is as follows:

firstly, the screw ⑦ is screwed counterclockwise and retreated to the right, an object is placed between the fixed arm ① and the plastic cup ⑥, the tail of the movable arm ④ is propped by a hand, the handle ⑧ is rotated clockwise by force, the screw ⑦ moves forward under the action of threads to clamp the object, the movable arm ④ tilts backward under the reaction, the solid phi 4 pin ③ in an angle diagram is clamped on the metal guide rod ⑤, and the movable arm ④ is locked and fixed.

The force unloading process is as follows:

rotating handle ⑧ counterclockwise moves screw ⑦ rearward under the influence of the threads, thereby releasing the force to release the object.

The technical content and the technical features of the present invention have been disclosed above, but those skilled in the art may still apply the invention after making appropriate adjustment changes based on the principle of the present invention, and therefore, the protection scope of the present invention should not be limited to the disclosure of the embodiments, but should include various substitutions and changes without departing from the present invention, and are covered by the claims of the present patent application.

Claims

1. A plastic F-clip, comprising: the metal guide arm, install fixed arm and digging arm on the metal guide arm, its characterized in that, fixed arm and digging arm all adopt the plastics material, fixed arm and digging arm respectively through solid round pin with metal guide arm interference fit connects, there is the screw rod the other end of digging arm through T type threaded connection, the one end of screw rod is connected with the plastics cup head that is used for supplementary centre gripping through the bulb back-off.

2. A plastic F-clip according to claim 1, wherein the other end of the threaded rod is connected to a handle by interference fit.

3. The plastic F-clip of claim 1, wherein said stationary and moveable arms are made of PA6+ GF 30.

4. A plastic F-clip according to claim 1, wherein said metal guide passes through said stationary arm and said solid pin is pressed into the center of the contact surface of said stationary arm with said metal guide.

5. A plastic F-clip according to claim 1, wherein said metal guide bar passes through said movable arms, said movable arms being pressed into said solid pins at two opposite corners of the outer side of the contact surface with said metal guide bar, said solid pins being located beside said metal guide bar and contacting said metal guide bar, respectively.

6. A plastic F-clip according to claim 1, wherein the tail of the metal guide rod is provided with a boss seal.

7. A plastic F-clamp according to claim 1, wherein the other end of the securing arm is provided with a clamping surface.