CN202317518U - Clamping device - Google Patents

Abstract

The utility model discloses a clamping device, include: the clamping device comprises a main body, at least one group of clamping components arranged on the main body, at least two clamping pieces arranged along a set direction in each group of clamping components, each clamping piece comprises two clamping parts arranged at intervals in the set direction, and a fastening piece for fastening a clamped part between the two clamping parts is arranged on at least one clamping part in each clamping piece. The utility model has the advantages that on one hand, the electric welding lacing wire is not needed to be positioned on the plate of the clamped part, thereby preventing the generation of welding cracks; on the other hand, the cut left when the lacing wire is cut is avoided, and the clamped part is prevented from cracking caused by stress concentration at the cut.

Description

a clamping device

technical field

The utility model relates to the technical field of mechanical manufacturing, in particular to a clamping device.

Background technique

At present, some small parts are involved in the welding work of various mechanical devices, and the small parts to be welded often require precise positioning, and the parts to be welded cannot be deformed, such as lugs welded on excavator working devices , is a relatively common structure for installing hydraulic cylinders or transmitting force. The lug (or ear plate) on the excavator includes two parts with a certain distance, which are respectively welded on the main body of the structural part. As shown in Figure 1-1, it is the structure of the lug 112 welded on the main body 111 of the boom; as shown in Figure 1-2, it is the structure of the lug 122 and the ear plate 123 welded on the main body 121 of the arm; as shown in the figure 1-3 shows the lug 132 structure welded on the main body 131 of the bucket.

At present, during the actual welding process in the workshop, the operator generally uses the method of welding steel bars and tension bars between the two lugs to control the welding deformation and shape tolerance between the lugs. As shown in Figure 2, it is a structural schematic diagram of preventing the deformation of the lugs in the prior art, including: a structural main body 21, a lug one 22, a lug two 23 and a tie bar 24, and a lug one 22 is welded on the structural main body 21 And lug 2 23, when welding lug 1 22 and lug 2 23, in order to prevent welding deformation and shape tolerance between the two lugs, a tie bar is welded on the two lug 1 22 and lug 2 23 24. The first lug 22 and the second lug 23 are connected by the welded tie bars 24, and the distance between them is fixed. After welding, the tie bars 24 need to be removed, and the first lug 22 and the second lug The part where the tie bar 24 is removed on 23, that is, the welding point 25, usually has welding defects. Since the lug is usually a part subjected to a large structural stress, this often causes the lug to break at the position where the tie bar is welded. As a result, the excavator cannot work normally, resulting in huge losses.

Utility model content

The utility model provides a clamping device, which is used to solve the problem in the prior art that the parts to be welded are easily deformed during the welding process, and after the tie bars are used to locate and prevent deformation, the welded tie bars need to be removed, and the welded parts need to be removed by cutting A cut is formed after the tie bar is removed, which leads to the problem of cracking due to stress concentration at the cut.

The utility model provides a clamping device, comprising: at least one set of clamping components located on the main body, each set of clamping components contains at least two clamping parts arranged along a set direction, each clamping Each piece includes two clamping parts with a set interval in the setting direction. In each clamping part, at least one clamping part is provided with a clamped part fastened between the two clamping parts. of fasteners.

In the at least two clamping parts included in the same group of clamping components, at least one clamping part of each clamping part is provided with a fastener.

In the at least two clamping parts included in the same group of clamping components, the two clamping parts in each clamping part are provided with fasteners.

Among the at least two clamping parts included in the same group of clamping components, one clamping part of one of the clamping parts is provided with a fastener, and the other two clamping parts of the other clamping parts are provided with corresponding fasteners. fastener.

In the two clamping parts in one clamping part, the fasteners are bolts or screws that are screwed into the space between the two clamping parts from the outside through the threaded holes on the clamping parts.

The centerlines of the threaded holes on the two clamping parts in one clamping part are parallel or identical.

The surface of each clamping portion in contact with the clamped component is a plane.

There is at least one fastener provided on each clamping part, and the fasteners are arranged at intervals along the direction of the surface in contact with the clamped part.

The same group of clamping components contains two clamping pieces.

The main body and each clamping piece are integrally constructed or detachably connected, and a groove-shaped through hole serving as a handle is also provided on the main body.

The beneficial effects of the utility model are as follows:

The clamping device provided by the utility model, on the one hand, does not need to position the welded ties on the plate of the clamped part, which prevents the occurrence of welding cracks; on the other hand, avoids leaving a cut when cutting the ties , and prevent the clamping part from cracking due to stress concentration at the incision; in addition, the utility model adopts threaded tightening to achieve the clamping method; the utility model is not only convenient for clamping and dismounting, but also does not need to use welding machines and gas cutting Guns and other equipment save energy, and the threaded connection has a self-locking function, and the clamping effect is reliable.

Description of drawings

Fig. 1-1 is a schematic diagram of a structure containing lugs in the prior art;

Fig. 1-2 is the structural schematic diagram 2 containing lugs in the prior art;

Fig. 1-3 is the structure schematic diagram three that contains lug in the prior art;

Fig. 2 is a structural schematic diagram of preventing deformation of lugs in the prior art;

Fig. 3 is a schematic structural view of Embodiment 1 of the utility model;

Fig. 4 is a structural sectional view of the first use state of the utility model embodiment;

Fig. 5 is a schematic structural view of Embodiment 2 of the utility model;

Fig. 6 is a schematic structural view of a third embodiment of the utility model;

Fig. 7 is a schematic structural view of the main body in Embodiment 4 of the utility model;

Fig. 8 is a schematic structural view of the main body in Embodiment 5 of the utility model;

Fig. 9 is a schematic structural view of the main body in Embodiment 6 of the present utility model.

Detailed ways

The utility model provides a clamping device which avoids the deformation of the parts to be welded during the welding process and avoids the problem of cracking caused by stress concentration at the incision after the existing tie bars are removed.

A detailed description will be given below in conjunction with the accompanying drawings and specific embodiments; wherein, the clamped part is the lug structure on the excavator, and the device is correspondingly provided with two clamping assemblies according to the number of the lug structures, and the specific structure is as follows:

As shown in Figure 3, it is a schematic structural diagram of Embodiment 1 of the utility model, including:

The main body 50 is provided with two clamping pieces for clamping the two supporting ears, and is integrally connected with the two clamping pieces, and each clamping piece includes two clamping parts.

The two clamping parts in one of the clamping parts are specifically: a fixing bolt clamping seat 51, which is provided with a threaded hole, and the lug is fixed by adjusting the fixing bolt 60 matched with the threaded hole;

A fixed support 52 is used to clamp the lug with the bolt 60;

The two clamping parts in the other clamping part are specifically: two bolt clamping seats, which are respectively an adjustable clamping seat 53 and a fixed bolt clamping seat 54, and the adjusting bolt 70 is installed on the adjustable clamping seat 53, by adjusting the distance AB between the fixed clamping surface A and the adjustable clamping surface B to adapt to different lug distances, the versatility of the tooling is realized.

Another fixing bolt 60 is installed on the fixing bolt clamping seat 54, and is used for mechanically fixing the lug structure to realize the fixing and clamping function of the tooling.

As shown in Figure 4, it is a sectional view of the first use state of the utility model embodiment, including: a main body 50, and two clamping parts, and two clamping parts are provided on each clamping part, specifically including: two Bolt clamping bases (51, 54), a fixed clamping base 52 and an adjustable clamping base 53. Put the supporting lug 20 and the supporting lug 21 in the corresponding two clamping parts, adjust the fixing bolt 60 installed on the fixing bolt clamping seat 51, so that the supporting lug 20 is close to the fixed clamping position on the fixed clamping seat 52. Surface A; adjust the adjusting bolt 70 installed on the adjustable clamping seat 53, so that the distance AB between the fixed clamping surface A and the adjustable clamping surface B is just the distance between the two lugs, and adjust the mounting on the The fixing bolt 60 on the fixing bolt clamping seat 54 is combined with the adjustable clamping surface B to jointly realize the function of clamping the lug 21. This embodiment can adapt to the fixed clamping surface A and the adjustable clamping surface B. Lug structures with different pitches for various models.

As shown in Figure 5, it is a structural schematic diagram of the second embodiment of the utility model, including: a main body 50, and two clamping parts, each clamping part includes two clamping parts, and the two clamping parts are respectively composed of A bolt clamping seat and a fixed clamping seat are composed, specifically, one of them is composed of a bolt clamping seat 51 and a fixed clamping seat 52, and the other clamping part includes a bolt clamping seat 54 and a fixed clamping seat 53. During specific use, the lugs to be welded are respectively placed in the two clamping parts, and the fixing bolts 60 installed on the fixing bolt clamping seat 51 and the fixing bolts 60 installed on the fixing bolt clamping seat 54 are adjusted. Tightly place the lugs in the clamping part.

As shown in Figure 6, it is a structural schematic diagram of Embodiment 3 of the present utility model, including: a main body 50, and two clamping parts, each clamping part is composed of two clamping parts, and each clamping part includes The bolt clamping seat and the adjustable clamping seat are fixed, and the adjustable bolts 70 installed on the adjustable clamping seat 52 and the adjustable clamping seat 53 are adjusted to suit lug structures with different spacings. Place the two lugs in the corresponding two clamping parts, that is, between the adjustable clamping seat 52 and the fixed clamping seat 51 and between the adjustable clamping seat 53 and the fixed clamping seat 54. The bolt 70 reaches the distance between the two supporting lugs, then adjust the fixing bolt 60 installed on the fixing bolt clamping seat 51 and the fixing bolt clamping seat 54, tighten the supporting lugs, and clamp the two supporting lugs in two groups inside the clamping part.

As shown in Figure 7, it is a schematic structural diagram of the main body in Embodiment 4 of the present utility model, including a main body 50, on which two clamping parts are arranged, and each clamping part includes two clamping parts, specifically: clamping part 501 and clamping part 502, on the clamping part, two threaded holes 503 are arranged at intervals in the direction of the surface in contact with the clamped part. The lines are the same, and the body has an arc-shaped structure.

As shown in Figure 8, it is a schematic structural diagram of the main body in Embodiment 5 of the present utility model, including a main body 50, on which two clamping parts are arranged, and each clamping part includes two clamping parts, specifically: clamping The clamping part 501 and the clamping part 502 are provided with threaded holes 503, the main body and the two sets of clamping parts are integrated, the center lines of the threaded holes are consistent, and the main body is in an arc-shaped structure.

As shown in Figure 9, it is a structural schematic diagram of the main body in Embodiment 6 of the present utility model, including a main body 50, on which an oval-shaped through-slot 504 is provided, used as a handle, and can also be set as a rectangular through-slot, or on the main body A handle is added for easy use; other structures are as mentioned above.

In summary, the beneficial effects of the present utility model include:

The utility model is used to clamp the clamped part welded on the structure main body by setting the clamping part, so as to prevent the clamped part from being deformed and the tolerance of shape and position in the welding process. On the one hand, it avoids being clamped The parts are welded on the plate, which prevents the occurrence of welding cracks. On the other hand, it also avoids the cut left when cutting the tie bars, and achieves the effect of avoiding the stress concentration and cracking of the parts to be held at the cut.

The utility model uses bolts or screws in conjunction with threads to achieve the effect of clamping the clamped parts. It is not only convenient for clamping and disassembly, but also avoids the use of equipment such as welding machines and gas cutting guns, saving energy, and the thread connection method has Self-locking function, reliable clamping effect.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (10)

1. clamping device; Comprise main body, it is characterized in that, also comprise: be positioned at least one group of clamp assemblies on the said main body; At least comprise two holders of arranging along direction initialization in each group clamp assemblies; Each holder includes two clamping parts of on said direction initialization, setting spacing at interval, and in each holder, at least one clamping part is provided with the fastening securing member that is held parts that is positioned between two clamping parts.

2. clamping device according to claim 1 is characterized in that, at least two holders that same group of clamp assemblies comprises, at least one clamping part is provided with securing member in each holder.

3. clamping device according to claim 2 is characterized in that, at least two holders that same group of clamp assemblies comprises, is equipped with securing member on two clamping parts in each holder.

4. clamping device according to claim 2; It is characterized in that; In at least two holders that same group of clamp assemblies comprises, a clamping part in one of them holder is provided with securing member, is equipped with corresponding securing member on two clamping parts in all the other clamp assemblies.

5. clamping device according to claim 4 is characterized in that, in two clamping parts in a holder, securing member is for screwing in the bolt or the screw of two clamping part intermediate spaces from the outside through the tapped through hole on the clamping part.

6. clamping device according to claim 5 is characterized in that, the center line that is arranged in the screwed hole on two clamping parts of a holder is parallel or identical.

7. clamping device according to claim 1 is characterized in that, each clamping part is the plane with being held the face that parts contact.

8. clamping device according to claim 7 is characterized in that, the securing member quantity that each clamping part is provided with is at least one, and the edge is spaced with the direction that is held the face that parts contact.

9. clamping device according to claim 1 is characterized in that, the quantity that same group of clamp assemblies comprises holder is two.

10. according to any described clamping device of claim 1～9, it is characterized in that said main body and each said holder are integral structure or removably connect, and also are provided with a grooved through hole as handle on the said main body.

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