Ultrasonic plastic welding jig

Abstract

The utility model discloses an ultrasonic plastic welding jig which comprises a base, a groove is formed in the upper side face of the base, a supporting piece is longitudinally arranged in the groove in a sliding mode, long-strip-shaped fixing blocks are arranged on the left side and the right side of the upper side face of the base respectively, and a limiting block is fixedly arranged between the two long-strip-shaped fixing blocks through bolts. A through groove communicated with the groove is formed in the position, corresponding to the groove, of the middle of the limiting block, the inner side wall of the through groove is matched with the shape of the abutting position of the plastic part, and limiting structures capable of abutting against the upper side of the plastic part placed in the through groove are arranged on the upper sides, corresponding to the limiting block, of the two long-strip-shaped fixing blocks; the plastic part is placed in the through groove and abuts against the supporting part for limiting, then the top of the plastic part is limited through the limiting structure, so that positioning of the plastic part is completed, after welding is completed and limiting of the limiting structure is removed, the plastic part is jacked up through supporting of the supporting part, and therefore workers can take the plastic part conveniently; therefore, the welding efficiency can be improved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixture technical field, concretely is a kind of ultrasonic plastic welding fixture. BACKGROUND

[0002] Ultrasonic welding converts electrical energy into mechanical vibration energy through a transducer, and this vibration energy is transmitted to the object to be welded through a tool head. The vibration frequency is usually between 20 kHz and 60 kHz, which is much higher than the range that the human ear can hear.

[0003] During the welding process, the two objects to be welded are pressed together, and the ultrasonic vibration generates friction heat on the contact surface. This heat melts the plastic or forms a welding point on the metal surface, thereby achieving welding. Ultrasonic welding does not require the use of additional adhesives or solvents, and is an environmentally friendly welding method. When ultrasonic welding is performed on plastic, a welding fixture is usually used.

[0004] The welding point of the plastic is usually inside the plastic part. During welding, the plastic part is usually placed in the fixture with the front face facing the groove matching the front face structure of the plastic part for butt joint and limiting, and then ultrasonic welding is performed on the inside. However, after welding is completed, it is relatively troublesome to remove the plastic part from the groove in the fixture, which to some extent affects the efficiency of plastic part welding. SUMMARY

[0005] To solve the above problems, the utility model provides an ultrasonic plastic welding fixture.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] An ultrasonic plastic welding fixture is used for welding and positioning of a plastic part, which includes a base. A groove is formed on the upper side of the base. A support member is longitudinally slidably arranged in the groove. Longitudinal fixing blocks are respectively arranged on the left and right sides of the upper side of the base. A limiting block is fixedly arranged between the two longitudinal fixing blocks by means of bolts. A through slot is formed in the limiting block corresponding to the groove. The inner side wall of the through slot is adapted to the shape of the abutting portion of the plastic part. Limiting structures are arranged on the upper side of the two longitudinal fixing blocks corresponding to the limiting block, which can abut against the upper side of the plastic part placed in the through slot.

[0008] Preferably, the support member includes a support plate arranged transversely in the groove. Limiting sliding grooves are respectively formed in the left and right side walls of the groove corresponding to the support plate. Limiting sliding blocks are respectively arranged on the left and right sides of the support plate corresponding to the limiting sliding grooves, which can be slidably connected to the corresponding limiting sliding grooves. A support spring is further arranged in the bottom of the groove corresponding to the support plate.

[0009] Preferably, the top of the support plate is provided with a limiting plate, the upper side of the limiting plate is matched with the shape of the abutting position of the plastic part, the bottom of the limiting plate is provided with a positioning rod on the left and right sides respectively, and the upper side of the support plate is provided with a positioning groove for inserting the positioning rod at the position corresponding to the positioning rod.

[0010] Preferably, the limiting structure comprises a transversely arranged baffle, the baffle is located on the side of the long strip-shaped fixing block facing the groove, the long strip-shaped fixing block is provided with a sliding groove for transversely sliding the baffle on the side corresponding to the baffle, the baffle is provided with a connecting rod on the side corresponding to the sliding groove, and the end of the connecting rod away from the baffle penetrates through the sliding groove and extends to the outside.

[0011] Preferably, the end of the connecting rod located outside the long strip-shaped fixing block is fixedly provided with a handle, and the connecting rod is provided with a limiting block at the position corresponding to the outer side wall of the long strip-shaped fixing block.

[0012] Preferably, the lower side of the baffle is provided with protective cotton at the abutting position of the plastic part.

[0013] Compared with the prior art, the ultrasonic plastic welding jig has the following beneficial effects:

[0014] The ultrasonic plastic welding jig provided by the utility model can replace the limiting block corresponding to the through groove by corresponding plastic parts, and the limiting block is fixed on the long strip-shaped fixing block through a bolt, and the corresponding limiting plate is inserted on the support plate through the positioning rod, the plastic parts to be welded are placed in the through groove and compressed on the support plate, then the handle is pushed, the baffle is arranged on the upper side of the plastic parts to limit and fix the plastic parts, after the welding inside is completed, the baffle is retracted into the sliding groove through the handle, so that the limiting of the top of the plastic parts is released, then the support spring is reset, the welded plastic parts are lifted up, so that the staff can take them conveniently, and the welding efficiency can be improved to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole schematic view of the ultrasonic plastic welding jig of the utility model (after limiting);

[0016] Fig. 2 It is an enlarged view of A of the ultrasonic plastic welding jig of the utility model;

[0017] Fig. 3 It is an exploded view of the ultrasonic plastic welding jig of the utility model.

[0018] In the figure: 1, base; 11, groove; 12, limiting sliding groove; 2, support; 21, support plate; 22, limiting sliding block; 23, support spring; 24, limiting plate; 25, positioning rod; 26, positioning groove; 3, long strip-shaped fixing block; 31, sliding groove; 4, limiting block; 41, through groove; 5, limiting structure; 51, baffle; 52, connecting rod; 53, handle; 54, limiting block; 55, protective cotton. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figs. 1-3 The utility model provides a kind of ultrasonic plastic welding fixture for the welding positioning of plastic parts, including base 1, recess 11 is set on the upper side of base 1, support 2 is slidably arranged in recess 11, long strip-shaped fixing block 3 is respectively arranged on the left and right sides of the upper side of base 1, limiting block 4 is arranged between the two long strip-shaped fixing blocks 3 by bolt fixing, through groove 41 that is communicated with it is formed in the middle part of limiting block 4 corresponding to recess 11, the inner side wall of through groove 41 is adapted to the shape of the abutment of plastic part, the upper side of the two long strip-shaped fixing blocks 3 corresponding limiting block 4 is provided with limiting structure 5 that can be abutted on the upper side of plastic part placed in through groove 41;

[0021] Before welding, first, limiting block 4 of the through groove 41 that is adapted to the shape of plastic part can be selected according to the plastic part to be welded, and then support 2 is placed in through groove 41 and is abutted on support 2, limiting is carried out, and then the top of plastic part is limited by limiting structure 5, so that the positioning of plastic part is completed, after welding is completed, the limiting of limiting structure 5 is released, and the plastic part is lifted by the support of support 2, so that it is convenient for staff to take, so that the efficiency of welding can be provided to a certain extent.

[0022] Further, see Figs. 1-3 The support 2 here includes the support plate 21 that is transversely arranged in the recess 11, the limiting sliding groove 12 is respectively formed in the left and right side walls in the recess 11 corresponding to the support plate 21 longitudinally, the limiting sliding block 22 that can be slidably connected with the corresponding limiting sliding groove 12 is respectively arranged on the left and right sides of the support plate 21 corresponding to the limiting sliding groove 12, and the support spring 23 is further arranged on the bottom of the recess 11 corresponding to the support plate 21.

[0023] When the plastic part is placed, the bottom will abut against the support plate 21 and compress the support spring 23. Here, the support spring 23 can be provided with a spring with slight elasticity, so as to avoid plastic deformation caused by excessive elasticity. After the limiting structure 5 is released from limiting after welding is completed, the support plate 21 is lifted by the support spring 23, so as to lift the welded plastic part out of the through slot, thereby facilitating the worker to take it.

[0024] Wherein, the top of the support plate 21 is further provided with a limiting plate 24, the upper side of the limiting plate 24 is matched with the shape of the abutting place of the plastic part, so as to adapt to the outer bottom of the plastic part, avoid damaging the plastic part, and at the same time, the bottom of the limiting plate 24 is provided with a positioning rod 25 on the left and right sides, and the upper side of the support plate 21 is provided with a positioning groove 26 corresponding to the positioning rod 25 for inserting the positioning rod 25. The limiting plate 24 can be replaced according to the shape of the plastic part, so as to have wider applicability and lower replacement cost.

[0025] Further, see Figs. 1-2 The limiting structure 5 includes a transversely arranged baffle 51, the baffle 51 is located on one side of the long strip-shaped fixed block 3 facing the groove 11, the long strip-shaped fixed block 3 is provided with a sliding groove 31 corresponding to the baffle 51 for transversely sliding the baffle 51, and the baffle 51 is provided with a connecting rod 52 corresponding to the sliding groove 31, one end of the connecting rod 52 away from the baffle 51 penetrates through the sliding groove 31 and extends to the outside.

[0026] Through the arrangement of the connecting rod 52, the baffle 51 can be pulled out of the long strip-shaped fixed block 3 to limit or release the top of the plastic part.

[0027] Wherein, one end of the connecting rod 52 located outside the long strip-shaped fixed block 3 is fixedly provided with a handle 53, so as to facilitate pulling or pushing, and the connecting rod 52 is provided with a limiting block 54 corresponding to the outer side wall of the long strip-shaped fixed block 3, so as to avoid pushing the baffle 51 out of the sliding groove 31.

[0028] At the same time, the lower side of the baffle 51 is provided with a protective cotton 55 at the abutting place of the plastic part, so as to avoid damaging the plastic part under the support of the support 2.

[0029] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0030] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic plastic welding fixture for welding and positioning plastic parts, comprising a base (1), characterized in that, The upper side of the base (1) is provided with a groove (11), and a support member (2) is provided in the groove (11) for longitudinal sliding. The left and right sides of the upper side of the base (1) are respectively provided with long strip-shaped fixing blocks (3). A limiting block (4) is provided between the two long strip-shaped fixing blocks (3) by bolts. A through groove (41) is provided in the middle of the limiting block (4) corresponding to the groove (11) and communicates with it. The inner side wall of the through groove (41) is adapted to the shape of the plastic part abutting. The upper side of the two long strip-shaped fixing blocks (3) corresponding to the limiting block (4) is provided with a limiting structure (5) that can abut with the upper side of the plastic part placed in the through groove (41).

2. The ultrasonic plastic welding fixture according to claim 1, characterized in that, The support member (2) includes a support plate (21) arranged laterally in the groove (11). The left and right side walls of the groove (11) are respectively provided with limiting grooves (12) in the longitudinal direction corresponding to the support plate (21). The left and right sides of the support plate (21) are respectively provided with limiting sliders (22) that can be slidably connected to the corresponding limiting grooves (12). The bottom of the groove (11) is also provided with a support spring (23) corresponding to the support plate (21).

3. The ultrasonic plastic welding fixture according to claim 2, characterized in that, The top of the support plate (21) is provided with a limiting plate (24), the upper side of the limiting plate (24) is adapted to the shape of the plastic part abutting point, the bottom left and right sides of the limiting plate (24) are respectively provided with positioning rods (25), and the upper side of the support plate (21) is provided with a positioning groove (26) for the positioning rods (25) to be inserted.

4. The ultrasonic plastic welding fixture according to claim 1, characterized in that, The limiting structure (5) includes a horizontally arranged baffle (51). The baffle (51) is located on the side of the elongated fixing block (3) facing the groove (11). The elongated fixing block (3) has a sliding groove (31) on the side of the baffle (51) for the baffle (51) to slide laterally. The baffle (51) has a connecting rod (52) on the side of the sliding groove (31). The end of the connecting rod (52) facing away from the baffle (51) passes through the sliding groove (31) and extends to the outside.

5. The ultrasonic plastic welding fixture according to claim 4, characterized in that, The connecting rod (52) is fixed with a handle (53) at one end outside the long strip-shaped fixing block (3), and a limiting block (54) is provided on the outer side wall of the connecting rod (52) corresponding to the long strip-shaped fixing block (3).

6. The ultrasonic plastic welding fixture according to claim 5, characterized in that, The lower side of the baffle (51) is provided with protective cotton (55) at the point where it contacts the plastic part.

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