CN209050307U - Welding fixture slide unit - Google Patents

Abstract

The utility model provides a kind of welding fixture slide unit, it includes clamp bottom board, at least a fixture slide unit and at least a lever arm, at least one set of sliding slot is offered on the clamp bottom board, the fixture slide unit is mounted on the clamp bottom board, it is moved along the corresponding sliding slot, it is flexibly connected between the fixture slide unit and the corresponding lever arm, and one end of the lever arm is articulated to the clamp bottom board, the other end of the lever arm is provided with force section, by exerting a force to the force section, the lever arm is driven to rotate, to drive the fixture slide unit mobile.The utility model can save torque when manual operations, it is not easy to generate fatigue or clamping stagnation draws motionless situation.It uses hinge chain, using torque arm of force relationship, makes operating point closer to operator, and power is smaller, more smooth, not will increase frictional force to generate idle work.The smooth and trackability of structure and as there is certain skill in the direction of stroke alteration power.

Description

Welding fixture slide unit

Technical field

The utility model relates to field of automobile parts and components, in particular to a kind of welding fixture slide unit.

Background technique

In field of automobile parts and components, for welding fixture, if some occasions are easily only damaged using cylinder Automatic-clamping Bad product, it is necessary to manual pre-pressing is used, and in manual operation, the power used when operation can be saved, to mitigate operation The fatigue of personnel.

Fig. 1 is the structural schematic diagram of welding fixture slide unit in the prior art.Fig. 2 is welding fixture slide unit in the prior art Resistance and effect analysis schematic diagram.Fig. 3 is the normal operation range schematic diagram of welding fixture slide unit in the prior art.Fig. 4 is existing There is the operating distance schematic diagram of welding fixture slide unit in technology.As shown in Figures 1 to 4, in conventional technique scheme, usually exist Install handle 100 on the slide unit of fixture additional.When being pre-installed, the direct operating handle 100 of operator makes sliding block and machine thereon Structure is together along sliding rail side-to-side movement.

However, this operation so that worker is more painstaking in operation, is easy to appear the phenomenon that drawing motionless and clamping stagnation.Alternatively, When repeating operation, since it is desired that frequently worked using biggish power, it is faster to generate fatigue.

In view of this, skilled person urgently improves the structure of welding fixture, to overcome above-mentioned technical problem.

Utility model content

The technical problems to be solved in the utility model be in order to overcome in the prior art welding fixture be easy to produce fatigue, out The defects of existing catching phenomenon, provide a kind of welding fixture slide unit.

The utility model is to solve above-mentioned technical problem by following technical proposals:

A kind of welding fixture slide unit, it is characterized in that, the welding fixture slide unit includes clamp bottom board, at least fixture cunning Platform and at least a lever arm offer at least one set of sliding slot on the clamp bottom board, and the fixture slide unit is mounted on the fixture It on bottom plate, moves, is flexibly connected between the fixture slide unit and the corresponding lever arm, and described along the corresponding sliding slot One end of lever arm is articulated to the clamp bottom board, and the other end of the lever arm is provided with force section, by described Force section force, drives the lever arm to rotate, to drive the fixture slide unit mobile.

One embodiment according to the present utility model, the side of the fixture slide unit are provided with a link block, the connection Block is flexibly connected with the lever arm.

One embodiment according to the present utility model, the link block are integrally formed with the fixture slide unit.

One embodiment according to the present utility model, the link block are connected by first axle and idler wheel and the lever arm It connects.

One embodiment according to the present utility model, the force section are a force handle, and the force handle setting exists The other end end of the lever arm.

One end of one embodiment according to the present utility model, the lever arm passes through second hinge and the clamp bottom board Connection.

One embodiment according to the present utility model, the welding fixture slide unit include two fixture slide units and two The lever arm, offer two groups on the clamp bottom board described in sliding slot, the fixture slide unit and the corresponding lever arm peace In the corresponding sliding slot.

One embodiment according to the present utility model, the clamp bottom board are a work bench with adjustable holder.

One embodiment according to the present utility model, the lever arm are vertical bar cross bar.

The positive effect of the utility model is:

The utility model welding fixture slide unit can save torque when manual operations, it is not easy to generate fatigue or clamping stagnation is drawn Motionless situation.It uses hinge chain, using torque arm of force relationship, makes operating point closer to operator, and power is smaller, more smooth, Frictional force is not will increase to generate idle work.The smooth and trackability of structure and with the direction of stroke alteration power have it is certain Skill.

Detailed description of the invention

The above and other feature of the utility model, property and advantage will pass through with reference to the accompanying drawings and examples It describes and becomes apparent, identical appended drawing reference always shows identical feature in the accompanying drawings, in which:

Fig. 1 is the structural schematic diagram of welding fixture slide unit in the prior art.

Fig. 2 is the resistance of welding fixture slide unit and effect analysis schematic diagram in the prior art.

Fig. 3 is the normal operation range schematic diagram of welding fixture slide unit in the prior art.

Fig. 4 is the operating distance schematic diagram of welding fixture slide unit in the prior art.

Fig. 5 is the structural schematic diagram of the utility model welding fixture slide unit.

Fig. 6 is the resistance and effect analysis schematic diagram of the utility model welding fixture slide unit.

Fig. 7 is the servomechanism force analysis figure of the utility model welding fixture slide unit.

Fig. 8 is the operating distance schematic diagram of the utility model welding fixture slide unit.

[appended drawing reference]

Handle 100

Clamp bottom board 10

Fixture slide unit 20

Lever arm 30

Sliding slot 11

Force section 31

Link block 21

First axle 22

Second hinge 32

Specific embodiment

It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible Novel specific embodiment elaborates.

The embodiments of the present invention are described with detailed reference to attached drawing now.Now with detailed reference to the excellent of the utility model Embodiment is selected, its example is shown in the drawings.In the case of any possible, will be come in all the appended drawings using identical label Indicate the same or similar part.

In addition, although term used in the utility model is selected from public term, this reality Some terms mentioned in novel specification may be applicant by his or her judgement come selection, and detailed meanings exist Illustrate in the relevant portion of description herein.

Furthermore, it is desirable that not only by used actual terms, and be also to the meaning contained by each term To understand the utility model.

Fig. 5 is the structural schematic diagram of the utility model welding fixture slide unit.Fig. 6 is the utility model welding fixture slide unit Resistance and effect analysis schematic diagram.Fig. 7 is the servomechanism force analysis figure of the utility model welding fixture slide unit.Fig. 8 is this The operating distance schematic diagram of utility model welding fixture slide unit.

As shown in Fig. 5 to Fig. 8, the utility model discloses a kind of welding fixture slide units comprising clamp bottom board 10, at least One fixture slide unit 20 and at least a lever arm 30, offer at least one set of sliding slot 11 on clamp bottom board 10, by fixture slide unit 20 It is mounted on clamp bottom board 10, is moved along corresponding sliding slot 11.It is flexibly connected between fixture slide unit 20 and corresponding lever arm 30, And one end of lever arm 30 is articulated to clamp bottom board 10, the other end of lever arm 30 is provided with force section 31, by applying Power portion 31 exerts a force, and lever arm 30 is driven to rotate, so that it is mobile to drive fixture slide unit 20.

In the present embodiment, the welding fixture slide unit includes two fixture slide units 20 and two lever arms 30, at fixture bottom Two groups of sliding slots 11 are offered on plate 10, fixture slide unit 20 and corresponding lever arm 30 are mounted in corresponding sliding slot 11.

Preferably, the side of fixture slide unit 20 is provided with a link block 21, link block 21 and 30 activity of lever arm is connected It connects.Link block 21 is preferably integrally formed with fixture slide unit 20.

In addition, link block 21 is connect by first axle 22 and idler wheel with lever arm 30.Force section 31 is a force handle, The force handle is arranged in the other end end of lever arm 30.The use of the force handle, can there is length, thickness etc. Variation in size, not by the limitation of embodiments herein.

One end of lever arm 30 is connect by second hinge 32 with clamp bottom board 10.Clamp bottom board 10 is preferably a fixture work Make platform.Lever arm 30 is preferably vertical bar cross bar.

It is described according to above structure, lever arm 30 is connected by second hinge 32 with clamp bottom board 10, and lever arm 30 can To rotate around second hinge 32, pass through first axle 22 and idler wheel and link block 21 between lever arm 30 and fixture slide unit 20 Lever arm 30 is converted into left and right around the rotary motion of second hinge 32 and moved in parallel by connection.Operator forces in force handle, It drives lever arm 30 to rotate, then by first axle 22 and link block 21, drives fixture slide unit 20 steadily, to realize that fixture is sliding The purpose that platform 20 moves left and right.

The utility model welding fixture slide unit compared with prior art, as shown in Figures 2 and 3, the weld clip of the prior art Has slide unit to operate conveniently, worker can generally hold from the closer position of body and pull sliding block.As long as sliding-frictional resistance (in the symmetrical center line of sliding block) and force direction on the same line will not generate a torque at this time, make sliding block with Guide rail side generates pressure, to further increase frictional resistance.The frictional resistance f1 and side pressure that gravity direction generates The superposition of the resistance f2 of generation, further increases the difficulty of operation.Normal need exerts a force propulsion on position of center line direction, just meeting It is most laborsaving, but worker needs to extend arm to contact this position at this time, undoubtedly also increases labor intensity of workers.

Assuming that under normal circumstances, frictional resistance about 5kgf carries out fixture then when needing manual sliding block axially movable When positioning, the power for needing to apply is 5kgf accordingly.Arm exhibition is 40cm. (as shown in Figure 3) when general worker's normal operating.At this time Worker is relative to body, the arm operational torque M=power * arm of force=5*0.4*9.8=19.6Nm.

Based on this, in order to reduce labor intensity of workers, the utility model welding fixture slide unit is chain using hinge, application of force Square arm of force relationship, makes operating point closer to operator, and power is smaller, more smooth, not will increase frictional force to generate idle work.Knot The smooth and trackability of structure and as there is certain skill in the direction of stroke alteration power.

Sliding block and rocking bar are attached by connector, rocking bar end is connect by rotary shaft with fixture table top.Worker The handle of hand-held front moves left and right, and handle band movable slider is moved along sliding rail axis direction.Make the stress point promoted in sliding block Middle position, to prevent the generation of turning moment.

As shown in figure 8, the use of rocking bar (lever arm and force handle) makes equally to push away in the generation of C point using lever principle The active force of movable slider, and the active force that worker needs to apply in the point place rocker front end B is smaller.

To guarantee that still thrust reaches 5kgf at C point among rocking bar, equally rotates around rotary shaft A point, reaches same torque, together The power that sample needs to apply at B are as follows: the f=torque/arm of force=5*0.3/0.6*9.8=2.5kgf.

Worker is relative to body, arm operational torque M=2.5*0.1*9.8=2.45Nm at this time.

Labor-saving effect=2.45/19.6=12.5%.

I.e. worker only needs original 12.5% in operation.

Force resolution direction is changed with force direction, larger frictional force when in order to overcome initial, handle knot Ad hoc curved shape on structure minimizes initial operation power.

The switch of the point of application changes the direction of power towards perpendicular to direction of action, and with mobile using cam structure It changes direction, keeps the minimum of force.Sliding friction is replaced using rolling friction simultaneously, reduces resistance.To more conducively man-machine Engineering science.

In conclusion torque when the utility model welding fixture slide unit can save manual operations, it is not easy to generate tired Labor or clamping stagnation draw motionless situation.It uses hinge chain, using torque arm of force relationship, makes operating point closer to operator, power is more It is small, it is more smooth, it not will increase frictional force to generate idle work.The smooth and trackability of structure and side with stroke alteration power To there is certain skill.

Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence Change, but these change and modification each fall within the protection scope of the utility model.

Claims (9)

1. a kind of welding fixture slide unit, which is characterized in that the welding fixture slide unit includes clamp bottom board, at least a fixture slide unit An at least lever arm offers at least one set of sliding slot on the clamp bottom board, and the fixture slide unit is mounted on the fixture bottom It on plate, moves, is flexibly connected between the fixture slide unit and the corresponding lever arm, and the thick stick along the corresponding sliding slot One end of lever arm is articulated to the clamp bottom board, and the other end of the lever arm is provided with force section, by applying to described Power portion force, drives the lever arm to rotate, to drive the fixture slide unit mobile.

2. welding fixture slide unit as described in claim 1, which is characterized in that the side of the fixture slide unit is provided with a connection Block, the link block are flexibly connected with the lever arm.

3. welding fixture slide unit as claimed in claim 2, which is characterized in that the link block is integrated with the fixture slide unit Molding.

4. welding fixture slide unit as claimed in claim 2, which is characterized in that the link block by first axle and idler wheel with The lever arm connection.

5. welding fixture slide unit as described in claim 1, which is characterized in that the force section is a force handle, described to apply The other end end of the lever arm is arranged in power handle.

6. welding fixture slide unit as described in claim 1, which is characterized in that one end of the lever arm by second hinge with The clamp bottom board connection.

7. welding fixture slide unit as described in claim 1, which is characterized in that the welding fixture slide unit includes two folders Have slide unit and two lever arms, offer two groups on the clamp bottom board described in sliding slot, the fixture slide unit and corresponding The lever arm is mounted in the corresponding sliding slot.

8. welding fixture slide unit as described in claim 1, which is characterized in that the clamp bottom board is a work bench with adjustable holder.

9. the welding fixture slide unit as described in claim 1-8 any one, which is characterized in that the lever arm is that vertical bar is horizontal Bar.