CN213105247U - Clamp forceps - Google Patents

Abstract

The utility model provides a clamp relates to frock welding technology field. It mainly includes installation unit, rotating part and fixed part. The mounting unit is mainly convenient for a user to connect different pressure arms according to actual conditions so as to compress workpieces needing to be welded, and the switching function is achieved; the rotating part is mainly used for controlling the pressing and opening of the mounting unit; the fixing portion mainly plays a fixing role so that the rotating portion can control the mounting unit. The rotating part is rotatably connected with the fixed part, and the mounting unit is rotatably connected with the fixed part and the rotating part respectively. The rotating portion selectively presses or releases the workpiece by cooperating with the fixed portion. Compared with the prior clamp, the utility model provides a repeatedly usable of clamp has reduced manufacturing cost, has prolonged the life of clamp.

Description

Clamp forceps

Technical Field

The utility model relates to a frock welding technology field particularly, relates to a clamp.

Background

Welding fixtures belong to non-standard industries, particularly the automobile manufacturing industry needs to be individually designed and manufactured according to automobile type requirements, and each fixture is often unique. The welding fixture clamps workpieces to be welded through a plurality of clamps, and the clamps commonly used in the workshop at present comprise pneumatic clamps and manual clamps. However, the existing clamp still has the problem of being incapable of being recycled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamp, it can reuse.

The embodiment of the utility model is realized like this:

a clamp includes a mounting unit, a rotating portion, and a fixing portion. The rotating part is rotatably connected with the fixed part, the mounting unit is rotatably connected with the fixed part and the rotating part respectively, and the mounting unit is matched with the fixed part through the rotating part to compress or loosen a workpiece.

In some embodiments of the present invention, the mounting unit includes a switching portion and a driven portion, and the switching portion and the driven portion are integrally formed.

The utility model discloses a some embodiments, the one end interval that the switching portion was kept away from to the driven part has seted up a plurality of first through-holes and second through-hole, and every first through-hole all is adjacent with a second through-hole.

In some embodiments of the present invention, the diameters of the first through holes and the second through holes are 5-10mm and 2-10mm, respectively, and the distance between centers of every two adjacent first through holes and second through holes is 13-16 mm.

In some embodiments of the present invention, the width of the transition portion is 15-20mm and the height is 25-30 mm.

In some embodiments of the present invention, the mounting unit is provided with two positioning grooves at intervals, the distance between the centers of the two positioning grooves is 15-30mm, and the diameter of each positioning groove is 5-10 mm.

In some embodiments of the present invention, the rotating portion is provided with a hand-held portion.

In some embodiments of the present invention, the clamp is further detachably provided with a housing. Fixed part, handheld portion, rotation portion and installation unit all are located the casing, and the casing rotates and is provided with the bracing piece, compresses tightly the unit and sets up the first recess that matches with the bracing piece, and the bracing piece can be through rotating optionally with first recess butt or separation.

In some embodiments of the present invention, the housing includes a first cover and a second cover detachably connected to each other, and a second groove for allowing the handheld portion, the rotating portion, and the mounting unit to pass through is reserved between the first cover and the second cover.

In some embodiments of the present invention, the handle includes a first rod and a second rod that are sleeved with each other, the first rod is provided with an internal thread, and the second rod is provided with an external thread matching the internal thread.

The embodiment of the utility model provides an at least, have following advantage or beneficial effect:

the utility model provides a clamp, its simple structure, convenient to use, but reuse. It mainly includes installation unit, rotating part and fixed part. The mounting unit is mainly convenient for a user to connect different pressure arms according to actual conditions so as to compress workpieces needing to be welded, and the switching function is achieved; the rotating part is mainly used for controlling the pressing and opening of the mounting unit; the fixing portion mainly plays a fixing role so that the rotating portion can control the mounting unit. The rotating part is rotatably connected with the fixed part, and the mounting unit is rotatably connected with the fixed part and the rotating part respectively. The rotating portion selectively presses or releases the workpiece by cooperating with the fixed portion. When a user needs to use the clamp to compress a workpiece, the fixing part is fixed, the rotating part is rotated upwards after a proper pressure arm is installed, the pressure arm on the installation unit is driven by the rotating part to move downwards, the workpiece can be compressed at the moment, and the user can weld the workpiece; after welding, the rotating part is rotated downwards, the mounting unit moves upwards, and the user can take out the welded workpiece; after the use, the user can take off the clamp for next clamping and pressing. Compared with the prior clamp, the utility model provides a repeatedly usable of clamp has reduced manufacturing cost, has prolonged the life of clamp.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a clamp provided in embodiment 1 of the present invention;

fig. 2 is a schematic position diagram of the installation unit provided in embodiment 1 of the present invention after rotation;

fig. 3 is a schematic position diagram of the installation unit provided in embodiment 1 of the present invention when the installation unit is completely opened;

fig. 4 is a schematic structural view of a clamp provided in embodiment 2 of the present invention;

fig. 5 is a schematic structural diagram of a housing according to embodiment 2 of the present invention.

Fig. 6 is a schematic structural view of a clamp according to embodiment 3 of the present invention;

fig. 7 is a schematic size diagram of a mounting unit provided in embodiment 3 of the present invention;

fig. 8 is another schematic size diagram of a part of the mounting unit provided in embodiment 3 of the present invention;

fig. 9 is a schematic view of another size of the mounting unit provided in embodiment 3 of the present invention;

fig. 10 is a schematic size diagram of another part of the mounting unit provided in embodiment 3 of the present invention.

Icon: 100-clamp; 140-a fixed part; 150-a rotating part; 152-mounting holes; 154-a hand-held portion; 155-a first rod; 156-a second stick; 160-a mounting unit; 161-a switching part; 162-a driven part; 163-a connector; 164-a first via; 165-a second via; 166-connecting hole; 168-positioning grooves; 170-a first recess; 180-a housing; 182-support rods; 184-a first cover; 186-a second cover; 188-a second groove; 200-clamping a clamp; 240-a fixed part; 250-a rotating part; 254-a handpiece; 255-a first stick body; 256-a second rod; 261-a transfer part; 264-a first via; 265-a second via; 267-a baffle plate; 269-spacing hole; 270-a first groove; 280-a shell; 282-support rods; 284-a first cover; 286-a second cover; 288-a second groove; 300-clamping; 360-a mounting unit; 364 — a first via; 365 — second via.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when using, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

Referring to fig. 1, fig. 1 is a schematic structural diagram of a clamp 100. The utility model provides a clamp 100, which has simple structure and convenient use. Compared with the prior clamp, the utility model provides a clamp 100 repeatedly usable has reduced manufacturing cost, has prolonged the life of clamp 100.

As shown in fig. 1, the caliper 100 mainly includes a fixing portion 140, a rotating portion 150, and a mounting unit 160. The fixing portion 140 mainly plays a fixing role so that the rotating portion 150 can control the mounting unit 160; the rotating part 150 is mainly used to control the pressing and opening of the mounting unit 160; the mounting unit 160 is mainly convenient for a user to connect different press arms according to actual conditions so as to compress workpieces to be welded, and plays a role in switching.

The clamp 100 is detachably connected to the clamp base by the fixing portion 140. Four through holes (not shown) are spaced apart from the fixing portion 140 for mounting bolts and positioning pins, respectively. When a user needs to install the clamp 100, the clamp base is placed in the fixing portion 140, and then the bolt and the positioning pin are respectively inserted into the corresponding through holes to achieve fixing.

The rotating part 150 is rotatably coupled to the fixing part 140, and the rotating part 150 selectively presses or releases the workpiece by cooperating with the fixing part 140. The rotary connection is realized by the following modes: the connection between the rotating part 150 and the fixing part 140 is provided with a mounting hole 152, the mounting hole 152 is provided with a rotating shaft (not shown), and a user can control the clamping and releasing of the mounting unit 160 by rotating the rotating part 150 after fixing the fixing part 140.

An end of the rotating part 150 away from the fixed part 140 is provided with a hand-held part 154. The holding portion 154 is mainly used to provide a holding portion for the user to rotate the rotating portion 150, so that the clamp 100 is more flexible and convenient to use, and is convenient for the user to operate. Further, the handheld portion 154 may further be provided with an anti-slip portion (not shown in the figure), the anti-slip portion may be formed by providing an external thread on the handheld portion 154, and of course, in other embodiments, the anti-slip portion may also be formed by providing a silicone rubber, a rubber, or the like on the periphery of the handheld portion 154. The anti-slip part can increase the friction between the hand of the user and the handheld part 154, so that the user cannot easily slip off when rotating by using the handheld part 154.

Referring to fig. 1, 2 and 3, fig. 2 is a schematic view illustrating a position of the mounting unit 160 after rotation, and fig. 3 is a schematic view illustrating a position of the mounting unit 160 when fully opened. The mounting unit 160 is rotatably coupled to the fixing part 140 and the rotating part 150, respectively. The mounting unit 160 includes an adaptor portion 161 and a driven portion 162, and the adaptor portion 161 and the driven portion 162 are integrally formed. The adapter 161 is mainly used for mounting a clamping arm, and the driven part 162 mainly plays a role in connection. The switching portion and the driven portion of current clamp generally adopt the welding, and the user is when needs use suitable switching portion to connect the arm lock, with switching portion welding to driven portion can. However, the mounting unit 160 needs to be pressed and loosened continuously during use, and the connection method is easy to damage, which greatly shortens the service life of the clamp 100. The integral forming arrangement of the adapter 161 and the follower 162 improves the mechanical properties of the mounting unit 160, so that the mounting unit is more resistant to the force during the use process, thereby prolonging the service life of the clamp 100.

The width of the adapter 161 is 15-20mm, and the height is 25-30 mm. In this embodiment, the width of the adapter 161 is 16mm, and the height thereof is 25 mm. Of course, in other embodiments, the adapter 161 may have other thickness and width, such as 17mm width and 28mm height, 18mm width and 30mm height, 19mm width and 29mm height, 20mm width and 25mm height, etc. The user can design the appropriate width and height according to actual requirements as long as the normal operation of the clamp 100 is not affected.

As shown in fig. 2 and 3, the driven part 162 is rotatably provided with a coupling member 163, and one end of the coupling member 163, which is far from the driven part 162, is rotatably connected to the rotating part 150. The connecting member 163 is rotatably connected to the driven portion 162 via a connecting hole 166 and a connecting shaft (not shown), the diameter of the connecting hole 166 is 5-15mm, in this embodiment, the diameter of the connecting hole 166 is 10mm, and of course, in other embodiments, the connecting hole 166 may have other diameters, such as 8mm, 5mm, 15mm, and the like. Taking the position of the clamp 100 in fig. 1 as an initial state for example, when a user needs to use the clamp 100 to fix a workpiece, the hand-held portion 154 is rotated downward, the connecting member 163 is driven by the hand-held portion 154 to move upward, so as to drive the adaptor portion 161 to rotate upward, and when the adaptor portion 161 moves to the position shown in fig. 2 and 3, a gap between the clamping arm on the adaptor portion 161 and the clamping arm on the clamp base gradually increases, a workpiece to be fixed is placed between the two clamping arms, and then the hand-held portion 154 is rotated upward, the clamping arm on the adaptor portion 161 gradually approaches to the clamping arm on the clamp base, and the workpiece can be fixed by rotating again to the position shown in fig. 1.

A plurality of first through holes 164 and second through holes 165 are formed at intervals at one end of the adapter 161 away from the fixing portion 140, and each first through hole 164 is adjacent to one second through hole 165. The first through hole 164 is mainly used for connecting a bolt and plays a role in fixing the clamping arm, and the second through hole 165 is mainly used for enabling a positioning pin to penetrate through and plays a role in accurate positioning. In this embodiment, the first through hole 164 and the second through hole 165 are both disposed along the height direction of the adapter 161, so as to facilitate connection of different clamping arms. Of course, in other embodiments, the first through hole 164 and the second through hole 165 may be disposed in other manners, for example, the first through hole 164, the second through hole 165, the first through hole 164 and the second through hole 165 are formed along the width direction of the adapter 161. The first through hole 164 and the second through hole 165 are arranged differently, so that a user can select a proper adapter 161 according to a workpiece to be welded.

The diameters of the first through-hole 164 and the second through-hole 165 are 5-10mm and 2-10mm, respectively. The distance between the centers of every two adjacent first through holes 164 and second through holes 165 is 13-16 mm. In this embodiment, the diameters of the first through holes 164 and the second through holes 165 are 9mm and 8mm, respectively, and the distance between the centers of every two adjacent first through holes 164 and second through holes 165 is 15 mm. Of course, in other embodiments, the first through holes 164 and the second through holes 165 may have other diameters and center distances, for example, the diameters of the first through holes 164 and the second through holes 165 are 7mm and 6mm, respectively, and the center distance is 13 mm. The arrangement of the first through hole 164 and the second through hole 165 not only can save installation time, but also can improve the connection stability and the fastening performance of the adapter 161 and the clamping arm.

A fastening member (not shown) is disposed in the second through hole 165, and the fastening member may be made of elastic material such as sponge, silicone, rubber, etc. The fastener can further improve the stability and the tightness of the connection between the adapter 161 and the clamping arm, and improve the safety and the reliability of the clamp 100.

As shown in fig. 3, the adapter 161 is provided with a positioning groove 168, and the positioning groove 168 is formed along the height direction. The positioning groove 168 is mainly used for mounting a stopper (not shown in the figure), which can be directly commercially available. In this embodiment, the positioning groove 168 is a thread groove, which is convenient for a user to install and fix. Of course, in other embodiments, the positioning groove 168 may not be a threaded groove, as long as the installation and the fixing of the limiting block are achieved. The user can judge whether the workpiece is in a pressing state or not by judging whether a gap exists between the limiting block on the clamp 100 (namely the positioning groove 168) and the limiting block of the clamp base, so that the welding quality of the workpiece is improved. In this embodiment, the positioning grooves 168 are spaced apart from each other, but in other embodiments, only one positioning groove 168 may be provided, as long as the limiting block is provided with the connecting portion. The distance between the centers of the two positioning grooves 168 is 15-30mm, and the diameter of each positioning groove 168 is 5-10 mm. In this embodiment, the distance between the centers of the two positioning grooves 168 is 25mm, and the diameter of each positioning groove 168 is 8 mm. Of course, in other embodiments, the two positioning grooves 168 may have other center distances and diameters, as long as the positioning grooves can match the size of the limiting block. For example, the two positioning grooves 168 have a center-to-center distance and a diameter of 25mm and 6mm, 30mm and 10mm, respectively, and the like.

Where this embodiment is not described explicitly with respect to the pliers 100, reference may be made to commercially available pliers.

The working principle of the clamp 100 is as follows:

the present embodiment provides a clip 100 that is reusable, reducing the manufacturing costs for the user. When a user needs to use the clamp 100 to fix a workpiece, the handheld portion 154 is rotated downwards, the mounting unit 160 is driven by the rotating portion 150 to rotate upwards gradually, the distance between the clamping arm on the mounting unit 160 and the clamping arm of the clamp base is increased gradually, the user can place the workpiece to be welded between the two clamping arms, and then the handheld portion 154 is rotated upwards, so that the mounting unit 160 and the clamping arm of the clamp base are close to each other gradually until the workpiece is clamped, and fixation can be achieved.

Example 2

Referring to fig. 4, fig. 4 is a schematic structural diagram of the clamp 200. The present embodiment provides a clamp 200, which is different from the clamp 100 in embodiment 1 only in that:

as shown in fig. 4, the adapting portion 261 is provided with a baffle 267, and the arrangement of the baffle 267 does not affect the normal installation of the adapting portion 261 and the clamping arm. The baffle 267 is positioned at a side close to the first through hole 264 of the rotation part 250. When the user needs to install the clamping arm, the clamping arm is moved to the rear of the baffle 267 and cannot be moved continuously under the obstruction of the baffle 267, and at the moment, the user can insert the positioning pin into the second through hole 265 and install the bolt. The baffle 267 is arranged to play a role in quick positioning, so that the holes in the clamping arm can be aligned to the first through hole 264 and the second through hole 265 of the adapter 261 respectively, the installation efficiency of a user is improved, and the installation time is saved.

The adapter 261 is further provided with a limiting hole 269 along the width direction. When a user needs to weld a relatively neat workpiece, a rod body can be inserted into the limiting holes 269 of the clamps 200, so that different clamps 200 can be kept on a designed surface, the user can adjust the positions of the clamps 200 in time, and the welding precision is prevented from being influenced by deviation. Meanwhile, after the plurality of clamps 200 are connected through the rod body, the problem that welding quality is affected due to the fact that part of the clamps 200 are loosened can be effectively prevented, and the welding quality of workpieces is further improved.

The clamp 200 may further be detachably provided with a housing 280, and the housing 280 is provided without affecting the normal rotation of the handle portion 254, the rotating portion 250 and the adaptor portion 261. The fixing portion 240, the handheld portion 254, the rotating portion 250 and the adapter portion 261 are all located in the housing 280, the housing 280 is rotatably provided with a support rod 282, the adapter portion 261 is provided with a first groove 270 matched with the support rod 282, and the support rod 282 can be selectively abutted against or separated from the first groove 270 through rotation. After the user presses the workpiece through the clamp 200, the housing 280 is mounted to the clamp 200, and then the support rod 282 is rotated to abut against the first groove 270. Due to the arrangement of the supporting rod 282, when the clamp 200 compresses a workpiece, the adapter part 261 can be stressed by downward pressure, the compression and fixing effects of the clamp 200 on the workpiece are further improved, and the welding quality is improved.

Referring to fig. 4 and 5, fig. 5 is a schematic structural diagram of the housing 280. Further, in order to improve the flexibility and convenience of the pliers 200, the housing 280 includes a first cover 284 and a second cover 286 which are detachably connected, and a second groove 288 for passing the handle 254, the rotating portion 250 and the adaptor portion 261 is reserved between the first cover 284 and the second cover 286. When a user needs to use the housing 280, the first cover 284 and the second cover 286 are fastened to the clamp 200, and the support bar 282 is placed in the first groove 270 to realize support; when the user needs to rotate the clamp 200, the user takes the support rod 282 out of the first groove 270 and rotates the handle 254. The provision of the second recess 288 allows the user to adjust the clamping and unclamping positions of the clamp 200 without removing the housing 280, thereby facilitating the user's operation.

Further, the handle 254 includes a first rod 255 and a second rod 256 that are sleeved with each other, the first rod 255 is provided with an internal thread (not shown), and the second rod 256 is provided with an external thread (not shown) matching the internal thread. After the user compresses the workpiece, the second rod 256 is rotated, so that the handheld portion 254 can be shortened into the shell 280, the user can be effectively prevented from mistakenly touching the handheld portion 254, and the reliability of the clamp 200 is improved. Of course, in other embodiments, the handle 254 may be configured in other ways, as long as the length is adjustable.

The present embodiment is not described in detail with respect to the clamp 200, and reference may be made to the clamp 100 of embodiment 1.

Example 3

Referring to fig. 6, 7 and 8, fig. 7 is a schematic structural diagram of the clamp 300 according to the present embodiment, and fig. 7 is a schematic dimensional diagram of the mounting unit 360; fig. 8 is another dimensional view of a portion of the mounting unit 360. The present embodiment provides a clamp 300 which differs from the clamps provided in embodiments 1 and 2 only in that:

the dimensions of the respective positions of the mounting unit 360 are shown in fig. 7 and 8, both in mm in this embodiment. The diameter of the first through hole 364 is 9mm, the diameter of the second through hole 365 is 8mm, and the distance between the centers of the first through hole 364 and the second through hole 365 is 15 mm.

In other embodiments, the mounting unit 360 may have other dimensions. Referring to fig. 9 and 10, fig. 9 is a schematic view showing another size of the mounting unit 360; fig. 10 is a schematic size view of the other part of the mounting unit 360. The diameter of the first through hole 364 is 9mm, the diameter of the second through hole 365 is 8mm, and the distance between the centers of the first through hole 364 and the second through hole 365 is 15 mm. The height of the mounting unit 360 was 29.95mm, the width was 16mm, and the partial surface roughness was 1.6.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a clamp for fixed work piece, its characterized in that, including installation unit, rotation portion and fixed part, rotation portion with the fixed part rotates to be connected, the installation unit respectively in the fixed part with rotation portion rotates to be connected, the installation unit through rotation portion with the fixed part cooperation is in order to realize right the work piece compresses tightly or unclamps, rotation portion is provided with handheld portion, the clamp is still dismantled and is provided with the casing, the fixed part handheld portion rotation portion with the installation unit all is located in the casing, the casing rotates and is provided with the bracing piece, rotation portion seted up with the first recess that the bracing piece matches, the bracing piece can through rotate optionally with first recess butt or separation.

2. The clamp of claim 1, wherein the mounting unit includes an adaptor portion and a follower portion, the adaptor portion and the follower portion being integrally formed.

3. The clamp according to claim 2, wherein one end of the driven part, which is far away from the adapter part, is provided with a plurality of first through holes and second through holes at intervals, and each first through hole is adjacent to one second through hole.

4. The clamp according to claim 3, wherein the diameters of the first through hole and the second through hole are 5-10mm and 2-10mm, respectively, and the distance between the centers of every two adjacent first through holes and second through holes is 13-16 mm.

5. The clamp of claim 3, wherein the adapter portion has a width of 15-20mm and a height of 25-30 mm.

6. The clamp of claim 1, wherein the mounting unit is provided with two positioning slots spaced apart, the two positioning slots having a center-to-center distance of 15-30mm, and each positioning slot having a diameter of 5-10 mm.

7. The clamp of claim 1, wherein the housing includes a first cover and a second cover that are detachably connected, and a second groove is left between the first cover and the second cover for passing the hand-held portion, the rotating portion, and the mounting unit.

8. The clamp according to claim 1, wherein the hand-held portion comprises a first rod and a second rod sleeved with each other, the first rod is provided with an internal thread, and the second rod is provided with an external thread matching the internal thread.

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