CN221159175U - Arm lock anti falling device - Google Patents

Abstract

The application relates to the technical field of clamping tools, in particular to a clamping arm anti-dropping device which comprises a fixed seat, wherein a clamping arm is rotatably arranged on the fixed seat, the clamping arm anti-dropping device further comprises a clamping assembly, the clamping assembly comprises a clamping rod arranged on the clamping arm, one end of the clamping rod is provided with a clamping end, the clamping end is provided with a concave part, the fixed seat is fixedly connected with a clamping pin, and the clamping pin is buckled with or separated from the concave part. Whether pneumatic clamp or manual clamp, when the outage or remove the power appears, the arm lock reverse rotation, reverse pivoted arm lock can drive buckle subassembly synchronous rotation, and when the arm lock rotated to certain stroke, buckle subassembly's depressed part can lock on the bayonet catch of fixed position, and the bayonet catch will prevent buckle subassembly further rotation to prevent arm lock or automobile body spare drop, improve the problem that the clamp security is not enough among the correlation technique.

Description

Arm lock anti falling device

Technical Field

The application relates to the technical field of clamping tools, in particular to a clamping arm anti-drop device.

Background

In an automobile welding clamp, a clamping device is generally used for clamping a car body part, the clamping device is divided into a manual clamping device and an air cylinder clamping device according to a driving mode, the main structure of the clamping device is a clamping block and a clamping arm for driving the clamping block, the clamping arm is driven by a manual or air cylinder, and the clamping arm can be rotated to drive the clamping block to approach the car body part so as to realize clamping.

After the clamping device is used for clamping the automobile body part, if the air cylinder is suddenly disconnected or the manual clamping device removes force, the clamping press block can drive the clamping arm to reversely rotate under the action of dead weight, and the clamping force applied to the clamping block can be finally removed by the clamping arm which continuously reversely rotates, so that the clamping block or the automobile body part falls down, and injury is caused to personnel or the automobile body part. Therefore, through can increase a pressurize valve in the clamp outside, even the cylinder is sudden to cut off the air, thereby the inside pressure that can still keep of cylinder prevents to press from tightly pressing from both sides the briquetting and drop, but because the dwell time of pressurize valve is limited, just can lose the pressurize effect after the long-time outage, and this structure is not suitable for manual clamp, and the security is not enough.

Disclosure of utility model

In order to solve the problem of insufficient safety of the clamping device in the related art, the utility model provides an anti-falling device for a clamping arm.

The utility model provides a arm lock anti falling device, includes the fixing base, it is provided with the arm lock to rotate on the fixing base, still includes buckle subassembly, buckle subassembly including set up in the buckle pole of arm lock, the one end of buckle pole has the chucking end, the chucking end has the depressed part, fixing base fixedly connected with bayonet lock, bayonet lock and depressed part lock or break away from.

Further, the clamping ends comprise two clamping blocks which are respectively arranged on two sides of the clamping rod, and the concave parts are arranged on the clamping blocks.

Further, the clamping block is rotationally connected with a plurality of wear-resistant rollers, a plurality of clamping spaces for being matched with the clamping pins are formed between the wear-resistant rollers, and the clamping pins are in interference fit with the wear-resistant rollers.

Further, the wear-resistant rollers are positioned at the openings of the concave parts; the wear-resisting gyro wheel has four, wherein two wear-resisting gyro wheels are located one of them the opening part of chucking piece, and two other wear-resisting gyro wheels are located another the opening part of chucking piece.

Further, the clamping block is detachably connected with the clamping rod.

Further, the buckle rod comprises a mounting block arranged on the clamping arm and a mounting plate arranged on the mounting block, and the clamping end is located at one end of the length direction of the mounting plate.

Further, the mounting plate is provided with a jogged through hole for being matched with the mounting block, the mounting block is provided with a jogged fixing part and an adaptive mounting part, the mounting block is jogged and fixed in the jogged through hole through the jogged fixing part, and the mounting block is detachably connected with the clamping arm through the adaptive mounting part.

Further, a first adapting mounting hole group and a second adapting mounting hole group are formed in the mounting plate, the first adapting mounting hole group is distributed along the edge of the embedded through hole, and the second adapting mounting hole group is distributed along the edge of the first adapting mounting hole group.

The utility model has the following advantages:

1. According to the anti-dropping device for the clamping arm, the clamping arm is provided with the clamping assembly and the fixing seat is provided with the clamping pin, and the clamping pin is buckled with or separated from the concave part of the clamping assembly. Whether pneumatic clamp or manual clamp, when the outage or remove the power appears, the arm lock reverse rotation, reverse pivoted arm lock can drive buckle subassembly synchronous rotation, and when the arm lock rotated to certain stroke, buckle subassembly's depressed part can lock on the bayonet catch of fixed position, and the bayonet catch will prevent buckle subassembly further rotation to prevent arm lock or automobile body spare drop, improve the problem that the clamp security is not enough among the correlation technique.

2. According to the anti-dropping device for the clamp arm, the wear-resistant roller is arranged at the concave part and in interference fit with the clamping block, the wear-resistant roller is used for replacing the clamping block to be matched with the clamping block, hard contact is converted into soft contact, the clamping block and the clamping block are not easy to deform even after long-time use, and the service lives of the clamping block and the clamping block are prolonged.

3. The clamping end of the clamping arm anti-drop device is detachably connected with the clamping rod, so that the clamping arm anti-drop device is convenient to maintain and repair; simultaneously be provided with first adaptation mounting hole group and second adaptation mounting hole group on the mounting panel for arm lock anti-drop device can further adapt the arm lock of equidimension difference, increases the installation convenience of arm lock anti-drop device.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view showing a clamping state of a clamping arm anti-drop device according to an embodiment of the present application;

FIG. 2 is a side view showing an opened state of a clamp arm anti-drop device according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a buckle assembly according to an embodiment of the present application.

Reference numerals illustrate:

1. A fixing seat; 11. a bayonet lock; 2. a clamp arm; 3. a clasp assembly; 31. a clasp rod; 311. a mounting block; 3111. a fitting fixing portion; 3112. an adaptation mounting part; 312. a mounting plate; 3121. fitting the through hole; 3122. a first set of mating mounting holes; 3123. a second set of mating mounting holes; 32. a clamping end; 321. a clamping block; 322. wear-resistant roller.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, a clamping arm anti-drop device comprises a fixing seat 1, wherein a clamping arm 2 is rotationally arranged on the fixing seat 1, the clamping arm 2 is rotationally driven by an air cylinder or a manual driver, then a car body piece or other materials are clamped, and the specific structures and the working principles of the fixing seat 1 and the clamping arm 2 are all of the prior art, so that the details are not repeated.

Referring to fig. 2 and 3, in order to improve the use installability of the clip arm 2, the clip arm 2 is further provided with a buckle assembly 3, the buckle assembly 3 rotates along with the rotation of the clip arm 2, a bayonet lock 11 for being matched with the buckle assembly 3 is fixedly connected to the fixing base 1, and the bayonet lock 11 is located on the movement path of the buckle assembly 3, so that the bayonet lock 11 is buckled with or separated from the buckle assembly 3. When the air cylinder is out of air or the force is removed, the clamping pin 11 can prevent the clamping assembly 3 from further rotating, so that the clamping arm 2 is prevented from falling off when further rotating, and the installability is improved.

Specifically, the buckle assembly 3 includes a buckle lever 31 provided to the clip arm 2, and the buckle lever 31 includes a mounting block 311 provided to the clip arm 2 and a mounting plate 312 provided to the mounting block 311. The mounting block 311 is in a cuboid shape, one end of the mounting block 311 in the length direction is an adaptive mounting part 3112, and the adaptive mounting part 3112 is detachably connected with the clamping arm 2 through threaded connection so as to be convenient to mount and dismount; the other end of the mounting block 311 in the length direction is a fitting fixing portion 3111 for being matched with the mounting plate 312, the fitting fixing portion 3111 is in a semicircular shape, correspondingly, the mounting plate 312 is provided with a fitting through hole 3121 for being matched with the mounting block 311, the fitting fixing portion 3111 is in interference connection with the fitting through hole 3121 to achieve fixing and dismounting, it is understood that the fitting fixing portion 3111 can also achieve fixing and dismounting with the fitting through hole 3121 in a threaded connection manner, and the fitting fixing portion 3111 can also achieve fixing and dismounting with the fitting through hole 3121 in a magnetic attraction manner, so long as the detachable connection of the fitting fixing portion 3111 and the fitting through hole 3121 can be achieved.

In addition, in order to adapt to the clamping arms 2 with different specifications, the mounting plate 312 is further provided with a first adapting mounting hole set 3122 and a second adapting mounting hole set 3123. The first fitting hole set 3122 and the second fitting hole set 3123 are a plurality of through holes for fitting the clip arm 2, the first fitting hole set 3122 is distributed along an edge of the fitting through hole 3121, and the second fitting hole set 3123 is distributed along an edge of the first fitting hole set 3122. Through setting up first adaptation mounting hole group 3122 and second adaptation mounting hole group 3123, except realizing being connected with arm lock 2 through installation piece 311, can also install through screw with arm lock 2 through first adaptation mounting hole group 3122 and second adaptation mounting hole group 3123 in order to realize further fixed to increase buckle subassembly 3 and arm lock 2's joint strength and suitability.

One end of the mounting plate 312 in the length direction has a clamping end 32 for engaging the bayonet 11, and the clamping end 32 has a recess for engaging the bayonet 11. The clamping end 32 comprises two clamping blocks 321 which are respectively arranged at two sides of the clamping rod 31, and the concave part is arranged on the clamping blocks 321. For easy to assemble and dismantle, chucking piece 321 can dismantle with buckle pole 31 and be connected, in this embodiment, buckle pole 31 has seted up the through-hole, and two chucking pieces 321 have seted up with buckle pole 31 through-hole complex through-hole, wear to be equipped with the screw in the through-hole, and the nut is installed to the one end of screw, and chucking piece 321 passes through screw and nut and buckle pole 31 promptly and realizes fixed and can dismantle the connection. When the clamping blocks 321 are installed, the mounting plate 312 is positioned between and fixed to the two clamping blocks 321.

In order to increase the service life of the buckle assembly 3, the clamping block 321 is rotationally connected with a plurality of wear-resistant rollers 322, a clamping space for matching the clamping pin 11 is formed between the plurality of wear-resistant rollers 322, the clamping pin 11 is in interference fit with the wear-resistant rollers 322, and when the clamping pin 11 is matched with the buckle assembly 3, the clamping pin 11 is located in the clamping space.

In this embodiment, the plurality of wear-resistant rollers 322 are located at the openings of the recess; the number of the abrasion-resistant rollers 322 is four, wherein two abrasion-resistant rollers 322 are positioned at the opening of one clamping block 321, and the other two abrasion-resistant rollers 322 are positioned at the opening of the other clamping block 321, namely, the four abrasion-resistant rollers 322 form a clamping space. The abrasion-resistant roller 322 is used for replacing the clamping block 321 to be matched with the clamping block 11, hard contact is converted into soft contact, and the clamping block 321 and the clamping block 11 are not easy to deform even after long-time use, so that the service lives of the clamping block 11 and the clamping block 321 are prolonged.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (8)

1. The utility model provides a arm lock anti falling device, includes fixing base (1), it is provided with arm lock (2) to rotate on fixing base (1), its characterized in that still includes buckle subassembly (3), buckle subassembly (3) including set up in buckle pole (31) of arm lock (2), the one end of buckle pole (31) has chucking end (32), chucking end (32) have the depressed part, fixing base (1) fixedly connected with bayonet lock (11), bayonet lock (11) and depressed part lock or break away from.

2. The arm lock anti-drop device according to claim 1, wherein the clamping end (32) comprises two clamping blocks (321) respectively arranged at two sides of the clamping rod (31), and the concave part is arranged on the clamping blocks (321).

3. The anti-dropping device for the clamping arm according to claim 2, wherein the clamping block (321) is rotatably connected with a plurality of wear-resistant rollers (322), a clamping space for being matched with the clamping pin (11) is formed between a plurality of wear-resistant rollers (322), and the clamping pin (11) is in interference fit with the wear-resistant rollers (322).

4. A clamping arm anti-drop device according to claim 3, characterized in that a number of said wear-resistant rollers (322) are located at the opening of said recess; the number of the abrasion-resistant rollers (322) is four, two abrasion-resistant rollers (322) are positioned at the opening of one clamping block (321), and the other two abrasion-resistant rollers (322) are positioned at the opening of the other clamping block (321).

5. A clamping arm anti-drop device according to any of claims 2-4, characterized in that the clamping block (321) is detachably connected to the catch bar (31).

6. The arm lock anti-drop device according to any one of claims 1-4, wherein the snap rod (31) comprises a mounting block (311) provided on the arm lock (2) and a mounting plate (312) provided on the mounting block (311), and the clip end (32) is located at one end of the mounting plate (312) in the length direction.

7. The arm-clamping anti-drop device according to claim 6, wherein the mounting plate (312) is provided with a fitting through hole (3121) for being matched with the mounting block (311), the mounting block (311) is provided with a fitting fixing portion (3111) and an adapting mounting portion (3112), the mounting block (311) is fitted and fixed in the fitting through hole (3121) through the fitting fixing portion (3111), and the mounting block (311) is detachably connected with the arm-clamping (2) through the adapting mounting portion (3112).

8. The arm lock anti-drop device according to claim 7, wherein the mounting plate (312) is provided with a first set of fitting holes (3122) and a second set of fitting holes (3123), the first set of fitting holes (3122) being distributed along the edge of the fitting hole (3121), and the second set of fitting holes (3123) being distributed along the edge of the first set of fitting holes (3122).