阅读说明：本技术 一种用于塑料件激光焊接的焊接夹具 (Welding fixture for laser welding of plastic parts ) 是由 舒理昂 于 2021-08-23 设计创作，主要内容包括：本发明属于激光焊接领域,具体的说是一种用于塑料件激光焊接的焊接夹具,包括夹具箱,所述夹具箱外表面的两侧均开设有滑槽,所述夹具箱外表面的两侧均通过滑槽卡接有侧支撑架,所述夹具箱的正面转动连接有防尘板,所述防尘板内腔的右侧通过卡口器与夹具箱内腔的右侧活动连接,所述侧支撑架的外表面套接有基底套。使用该装置进行激光焊接时,通过操作台操作位移滑块,进而控制压爪的左右位移,通过操作台操作水平横杆,进而控制压爪的前后位移,整体来看,该装置能够灵活控制所夹物体的空间位置,进而提高焊接的精密度,且该装置操作简单,原理清晰,制造成本相对较低,有利于在市面上普及。(The invention belongs to the field of laser welding, and particularly relates to a welding fixture for laser welding of plastic parts. When the device is used for laser welding, the displacement slide block is operated through the operating platform, so that the left displacement and the right displacement of the pressing claw are controlled, the horizontal cross rod is operated through the operating platform, so that the front displacement and the rear displacement of the pressing claw are controlled, and integrally, the device can flexibly control the spatial position of a clamped object, so that the welding precision is improved.)

1. A welding jig for plastic part laser welding, includes anchor clamps case (1), its characterized in that: the spout has all been seted up to the both sides of anchor clamps case (1) surface, the both sides of anchor clamps case (1) surface all have collateral branch strut (3) through the spout joint, the front of anchor clamps case (1) is rotated and is connected with dust guard (2), the right side swing joint of bayonet socket ware and anchor clamps case (1) inner chamber is passed through on the right side of dust guard (2) inner chamber, the surface of collateral branch strut (3) has cup jointed base cover (4).

2. A welding fixture for laser welding plastic articles as defined in claim 1, wherein: anchor clamps case (1) is including case shell (11), the both sides of case shell (11) inner wall all have horizontal pole (8) through spout sliding connection, the middle part sliding connection of horizontal pole (8) surface has displacement slider (5), the bottom fixedly connected with screw thread loop bar (12) of displacement slider (5), the top of screw thread loop bar (12) and the inner chamber fixed connection of displacement slider (5), the bottom fixedly connected with overhead gage (7) of screw thread loop bar (12), the equal sliding connection in side of overhead gage (7) has pressure claw (6), the bottom sliding connection of case shell (11) inner wall has lower baffle (13).

3. A welding fixture for laser welding plastic articles as defined in claim 2, wherein: displacement slider (5) are including square box (51), the top fixedly connected with rotation motor (52) of square box (51) inner wall, the equal fixed welding in both sides on rotation motor (52) top has wire (53), wire (53) extend to the outside of square box (51), the bottom of rotating motor (52) is connected through the inner chamber meshing of fluting and horizontal pole (8), the surface of square box (51) is run through to the rear end of horizontal pole (8), the rear end of horizontal pole (8) extends to the outside of square box (51).

4. A welding fixture for laser welding plastic articles as defined in claim 2, wherein: horizontal pole (8) are including pole shell (81), the inner chamber of pole shell (81) is provided with stabilising arrangement (9), the inner wall of pole shell (81) has chain (82) through recess sliding connection, drive gear (83) have been cup jointed to the surface that rotates motor (52) bottom, the surface of drive gear (83) is connected with the inner wall meshing of chain (82).

5. A welding fixture for laser welding plastic articles as defined in claim 4, wherein: stabilising arrangement (9) are including fixed stay post (91), the bottom of fixed stay post (91) and the inner wall fixed connection of pole shell (81), the outer fixed surface of fixed stay post (91) is connected with spring plate (92), half panel (95) have been cup jointed to the surface of spring plate (92), the back of half panel (95) and the inner wall fixed connection of pole shell (81), the bottom fixedly connected with arc (94) of half panel (95), positive left side fixedly connected with bayonet joint (93) of arc (94), the socket has been seted up on the positive right side of arc (94).

6. A welding fixture for laser welding plastic articles as defined in claim 2, wherein: the upper baffle plate (7) comprises an upper shell (71), a cross spring (73) is fixedly connected to the middle of the inner wall of the upper shell (71), a pulling block (72) is fixedly connected to the end point of the cross spring (73), the right end of the pulling block (72) penetrates through the inner wall of the upper shell (71), the right end of the pulling block (72) is fixedly connected with the left side of the pressing claw (6), and the left side of the pressing claw (6) penetrates through the inner wall of the upper shell (71).

7. A welding fixture for laser welding plastic articles as defined in claim 2, wherein: press claw (6) including upper arm (61), the right-hand member of upper arm (61) and the surface fixed connection who draws piece (72), the bottom of upper arm (61) is rotated through the pivot and is connected with down arm (63), the surface of upper arm (61) passes through spacing ring (62) and the surface swing joint of underarm (63), the bottom of underarm (63) is rotated and is connected with base (64).

Technical Field

The invention belongs to the field of laser welding, and particularly relates to a welding fixture for plastic part laser welding.

Background

The laser transmission welding of plastics is a novel bonding technology, and is widely applied to industries such as automobiles, food, medical treatment and the like due to the advantages of small residual stress, small heat affected zone, no residue, high automation degree and the like. The welding fixture is important equipment for finishing laser welding, has the functions of clamping workpieces, reducing welding errors and improving the processing strength, so that the performance of the welding fixture influences the processing quality of welding processing to a great extent, and the traditional welding fixture generally comprises a clamping mechanism and a supporting device. The supporting device mainly functions to support the weldment, has a simpler structure and is used for reducing deformation in the welding process. Clamping mechanism mainly acts on pressing and holding the clamp plate for the clamp plate further presss from both sides tight weldment, is used for reducing welding deformation and improves welding strength, and this kind of anchor clamps precision is relatively poor usually, is difficult to be applied to the higher welding process of precision, and operates the slabby, can't remove in a flexible way, has many dead angles that can't be according to moving during the welding that lead to, and this kind of device manufacturing cost is higher, and the preparation process flow is comparatively complicated, is difficult to popularize on market.

Disclosure of Invention

The invention aims to provide a welding fixture for plastic part laser welding, which solves the problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows: the welding fixture for the laser welding of the plastic parts comprises a fixture box, wherein sliding grooves are formed in two sides of the outer surface of the fixture box, side supporting frames are clamped on two sides of the outer surface of the fixture box through the sliding grooves, a dust-proof plate is rotatably connected to the front surface of the fixture box, the right side of the inner cavity of the dust-proof plate is movably connected with the right side of the inner cavity of the fixture box through a clamping device, and a base sleeve is sleeved on the outer surface of each side supporting frame.

The anchor clamps case includes the case shell, there is horizontal pole the both sides of case shell inner wall all through spout sliding connection, the middle part sliding connection of horizontal pole surface has the displacement slider, the bottom fixedly connected with screw thread loop bar of displacement slider, the top of screw thread loop bar and the inner chamber fixed connection of displacement slider, the bottom fixedly connected with overhead gage of screw thread loop bar, the equal sliding connection in side of overhead gage has the pressure claw, the bottom sliding connection of case shell inner wall has lower baffle.

The displacement slider includes the square box, the top fixedly connected with of square box inner wall rotates the motor, the equal fixed welding in both sides on rotation motor top has the wire, the wire extends to the outside of square box, the bottom of rotating the motor is connected through the inner chamber meshing of fluting with horizontal pole, the surface of square box is run through to the rear end of horizontal pole, the rear end of horizontal pole extends to the outside of square box.

The horizontal cross rod comprises a rod shell, a stabilizing device is arranged in an inner cavity of the rod shell, a chain is connected to the inner wall of the rod shell in a sliding mode through a groove, a transmission gear is sleeved on the outer surface of the bottom end of the rotating motor, and the outer surface of the transmission gear is meshed with the inner wall of the chain.

The stabilizing device comprises a fixed support column, the bottom end of the fixed support column is fixedly connected with the inner wall of the rod shell, the outer surface of the fixed support column is fixedly connected with a spring plate, the outer surface of the spring plate is sleeved with a half-panel, the back surface of the half-panel is fixedly connected with the inner wall of the rod shell, the bottom end of the half-panel is fixedly connected with an arc plate, the front left side of the arc plate is fixedly connected with a plug, and the front right side of the arc plate is provided with a socket.

The upper baffle comprises an upper shell, a cross spring is fixedly connected to the middle of the inner wall of the upper shell, a pulling block is fixedly connected to the end point of the cross spring, the right end of the pulling block penetrates through the inner wall of the upper shell, the right end of the pulling block is fixedly connected with the left side of the pressing claw, and the left side of the pressing claw penetrates through the inner wall of the upper shell.

The pressure claw includes the upper arm, the right-hand member of upper arm and the outer fixed surface who draws the piece are connected, the bottom of upper arm rotates through the pivot and is connected with the underarm, the surface of upper arm passes through the surface swing joint of spacing ring and underarm, the bottom of underarm rotates and is connected with the base.

The invention has the following beneficial effects:

1. when the device is used for laser welding, the transparent dustproof plate is opened, an object to be welded is connected to an inner cavity of the upper baffle plate through the pressing claw clamp, the dustproof plate is closed, the displacement slider is operated through the operating platform, the displacement slider can slide on the horizontal cross rod, the left displacement and the right displacement of the pressing claw are controlled, the horizontal cross rod is operated through the operating platform, the horizontal cross rod can move back and forth through the sliding groove in the inner wall of the box shell, the front displacement and the back displacement of the pressing claw are controlled, meanwhile, the threaded sleeve rod can control the vertical height of the pressing claw through rotating and increasing, and the device can flexibly control the spatial position of the clamped object, so that the welding precision is improved.

2. Because the precise operation is needed during welding, and the displacement slide block can have an acceleration and deceleration process during each displacement, once the acceleration or deceleration state appears, under the self inertia effect, the pressing claw and the clamped object can generate vibration, the vibration is particularly prominent in the process of continuously moving the object and can influence the welding precision, so that the four corners of the inner wall of the rod shell are provided with stabilizing devices to eliminate partial vibration force, the arc-shaped plate is clamped with the surface of the chain to prevent the chain from vibrating away from the horizontal plane during the rotation process, when the pressing claw and the clamped object generate vibration, the vibration is firstly transmitted to the stabilizing devices through the chain, the arc-shaped plate pulls the spring plate after absorbing the vibration force, the influence of the vibration force on the rotating motor is reduced through the elastic potential energy generated by the spring plate, and the precision of the operation is ensured.

3. In order to guarantee the stability that presses the claw to press from both sides and connect the object, press the claw when pressing the grafting object, the base rotates along the underarm inboard, four bases hold the grafting object, because the upper arm opens to the outside when base grafting object, draw the inside cross spring of piece extrusion, the elastic force that the cross spring produced prevents the upper arm to open to the outside, and then play the effect that blocks the object, press the claw simultaneously and can also be according to the range that the certain degree of size automatic adjustment clamp that presss from both sides the grafting object goes up, the flexibility is higher.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the fixture box of the present invention;

FIG. 3 is a schematic view of the construction of the displacement block of the present invention;

FIG. 4 is a schematic view of the construction of the horizontal rail of the present invention;

FIG. 5 is a schematic view of the structure of the stabilization device of the present invention;

FIG. 6 is a schematic view of the construction of the baffle of the present invention;

FIG. 7 is a schematic view of the structure of the pressing claw of the present invention.

In the figure: the clamp comprises a clamp box 1, a dust-proof plate 2, a side supporting frame 3, a base sleeve 4, a box shell 11, a threaded sleeve rod 12, a lower baffle 13, a displacement slide block 5, a square box 51, a rotating motor 52, a lead 53, a pressing claw 6, an upper arm 61, a limiting ring 62, a lower arm 63, a base 64, an upper baffle 7, an upper shell 71, a pulling block 72, a cross spring 73, a horizontal cross rod 8, a rod shell 81, a chain 82, a transmission gear 83, a stabilizing device 9, a supporting column 91, a spring plate 92, a plug connector 93, an arc-shaped plate 94 and a half-panel 95.

Detailed Description

A welding jig for laser welding of plastic parts according to an embodiment of the present invention will be described below with reference to fig. 1 to 7.

As shown in fig. 1-7, the welding fixture for plastic part laser welding comprises a fixture box 1, wherein sliding grooves are formed in two sides of the outer surface of the fixture box 1, side supporting frames 3 are clamped on two sides of the outer surface of the fixture box 1 through the sliding grooves, a dust guard 2 is rotatably connected to the front surface of the fixture box 1, the right side of the inner cavity of the dust guard 2 is movably connected with the right side of the inner cavity of the fixture box 1 through a clamping device, and a base sleeve 4 is sleeved on the outer surface of each side supporting frame 3.

The fixture box 1 comprises a box shell 11, wherein two sides of the inner wall of the box shell 11 are both connected with a horizontal cross rod 8 in a sliding manner through sliding chutes, the middle part of the outer surface of the horizontal cross rod 8 is connected with a displacement slider 5 in a sliding manner, the bottom end of the displacement slider 5 is fixedly connected with a threaded sleeve rod 12, the top end of the threaded sleeve rod 12 is fixedly connected with the inner cavity of the displacement slider 5, the bottom end of the threaded sleeve rod 12 is fixedly connected with an upper baffle 7, the side surface of the upper baffle 7 is connected with a pressing claw 6 in a sliding manner, the bottom end of the inner wall of the box shell 11 is connected with a lower baffle 13 in a sliding manner, when the fixture box is used for laser welding, a transparent dustproof plate 2 is opened, an object to be welded is clamped in the inner cavity of the upper baffle 7 through the pressing claw 6, the dustproof plate 2 is closed, the displacement slider 5 is operated through an operation table, so that the displacement slider 5 can slide on the horizontal cross rod 8, and further control the left and right displacement of the pressing claw 6, through operation panel operation horizontal pole 8, make horizontal pole 8 can pass through the spout displacement around the case shell 11 inner wall, and then control the displacement around pressing claw 6, simultaneously, screw sleeve pole 12 can be through rotatory vertical height of heightening control pressure claw 6, wholly see, the device can control the spatial position who presss from both sides the object in a flexible way, and then improve welded precision, and the device easy operation, the principle is clear, manufacturing cost is lower relatively, is favorable to popularizing on the market.

Displacement slider 5 includes square box 51, the top fixedly connected with rotation motor 52 of square box 51 inner wall, the equal fixed welding in both sides on rotation motor 52 top has wire 53, wire 53 extends to the outside of square box 51, the bottom of rotating motor 52 is connected through fluting and the inner chamber meshing of horizontal pole 8, the surface of square box 51 is run through to the rear end of horizontal pole 8, the rear end of horizontal pole 8 extends to the outside of square box 51.

The horizontal cross rod 8 comprises a rod shell 81, a stabilizing device 9 is arranged in an inner cavity of the rod shell 81, a chain 82 is connected to the inner wall of the rod shell 81 in a sliding mode through a groove, a transmission gear 83 is sleeved on the outer surface of the bottom end of the rotating motor 52, and the outer surface of the transmission gear 83 is meshed with the inner wall of the chain 82.

The stabilizing device 9 comprises a fixed supporting column 91, the bottom end of the fixed supporting column 91 is fixedly connected with the inner wall of the rod shell 81, the outer surface of the fixed supporting column 91 is fixedly connected with a spring plate 92, the outer surface of the spring plate 92 is sleeved with a half-panel 95, the back surface of the half-panel 95 is fixedly connected with the inner wall of the rod shell 81, the bottom end of the half-panel 95 is fixedly connected with an arc plate 94, the left side of the front surface of the arc plate 94 is fixedly connected with a plug 93, the right side of the front surface of the arc plate 94 is provided with a socket, and because precise operation is needed during welding, an acceleration and deceleration process can be carried out when the displacement slider 5 displaces each time, once an acceleration or deceleration state occurs, the pressing claw 6 and a clamped object can generate vibration under the action of self inertia, the vibration is particularly prominent in the process of continuously moving the object and can influence the welding precision, therefore, the four corners of the inner wall of the rod shell 81 are provided with the stabilizing devices 9 to eliminate part of vibration force, the arc-shaped plates 94 are connected with the surface of the chain 82 in a clamping manner, the chain 82 is prevented from vibrating away from the horizontal plane in the rotating process, when the pressing claw 6 and a clamped object vibrate, the vibration force is firstly transmitted to the stabilizing devices 9 through the chain 82, the arc-shaped plates 94 pull the spring plates 92 after absorbing the vibration force, the influence of the vibration force on the rotating motor 52 is reduced through the elastic potential energy generated by the spring plates 92, and the operation precision is ensured.

The upper baffle 7 comprises an upper shell 71, a cross spring 73 is fixedly connected to the middle of the inner wall of the upper shell 71, end points of the cross spring 73 are fixedly connected with a pulling block 72, the right end of the pulling block 72 penetrates through the inner wall of the upper shell 71, the right end of the pulling block 72 is fixedly connected with the left side of the pressing claw 6, and the left side of the pressing claw 6 penetrates through the inner wall of the upper shell 71.

The pressing claw 6 comprises an upper arm 61, the right end of the upper arm 61 is fixedly connected with the outer surface of a pulling block 72, the bottom end of the upper arm 61 is rotatably connected with a lower arm 63 through a rotating shaft, the outer surface of the upper arm 61 is movably connected with the outer surface of the lower arm 63 through a limiting ring 62, the bottom end of the lower arm 63 is rotatably connected with a base 64, in order to guarantee the stability of the object clamped by the pressing claw 6, the pressing claw 6 rotates towards the inner side along the lower arm 63 when clamping the object, the clamping object is supported by the four bases 64, the upper arm 61 opens towards the outer side when the base 64 clamps the object, the pulling block 72 extrudes an internal cross spring 73, the elastic force generated by the cross spring 73 prevents the upper arm 61 from opening towards the outer side, the effect of clamping the object is achieved, meanwhile, the pressing claw 6 can also automatically adjust the clamping range to a certain degree according to the size of the clamping object, and the flexibility is high.

The specific working process is as follows:

when the device is used for laser welding, the transparent dustproof plate 2 is opened, an object to be welded is clamped in an inner cavity of the upper baffle 7 through the pressing claw 6, the dustproof plate 2 is closed, the displacement slider 5 is operated through the operating platform, the displacement slider 5 can slide on the horizontal cross rod 8, the left displacement and the right displacement of the pressing claw 6 are controlled, the horizontal cross rod 8 is operated through the operating platform, the horizontal cross rod 8 can move back and forth through the sliding groove in the inner wall of the box shell 11, the front displacement and the back displacement of the pressing claw 6 are controlled, meanwhile, the threaded sleeve rod 12 can be used for controlling the vertical height of the pressing claw 6 through rotation, and the device can flexibly control the spatial position of the clamped object integrally, so that the welding precision is improved.

Since precise operation is required during welding, and each time the displacement slide 5 is displaced, an acceleration and deceleration process is carried out, once an acceleration or deceleration state occurs, under the action of self inertia, the pressing claw 6 and the clamped object can generate vibration which is particularly prominent in the process of continuously moving the object and can influence the welding precision, therefore, the four corners of the inner wall of the rod shell 81 are provided with the stabilizing devices 9 to eliminate part of the vibration force, the arc-shaped plates 94 are clamped with the surface of the chain 82 to prevent the chain 82 from vibrating off the horizontal plane in the rotating process, when the pressing claw 6 and the clamped object generate vibration and are firstly transmitted to the stabilizing device 9 through the chain 82, the arc-shaped plate 94 absorbs the vibration force and pulls the spring plate 92, the elastic potential energy generated by the spring plate 92 reduces the influence of the vibration force on the rotating motor 52, ensuring the precision of the operation.

In order to ensure the stability of the object clamped by the pressing claw 6, when the pressing claw 6 clamps the object, the base 64 rotates inwards along the lower arm 63, the four bases 64 support the clamped object, because the upper arm 61 opens outwards when the base 64 clamps the object, the pulling block 72 extrudes the internal cross spring 73, the elastic force generated by the cross spring 73 prevents the upper arm 61 from opening outwards, the effect of clamping the object is achieved, meanwhile, the pressing claw 6 can also automatically adjust the clamping range to a certain extent according to the size of the clamped object, and the flexibility is high.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.