Accurate positioning welding device

Abstract

The utility model relates to the technical field of welding equipment, in particular to a precise positioning welding device which comprises a rack and further comprises a guide rail mechanism arranged on the rack, a lifting welding mechanism arranged on the guide rail mechanism and a mold mechanism. The lifting welding mechanism comprises a supporting structure, a positioning structure arranged on the supporting structure and a variable-amplitude welding structure arranged on the positioning structure. The positioning structure comprises a positioning chuck embedded in the supporting structure and a connecting disc arranged on the positioning chuck; the positioning chuck comprises a chuck base and a chuck positioning cover which are installed on the supporting structure in an embedded mode. One side of the connecting disc is provided with a plurality of connecting columns connected with the variable-amplitude welding structure in a positioning mode, and the other side of the connecting disc is provided with positioning columns connected with the chuck positioning cover in a positioning mode. The supporting structure and the amplitude-change welding structure are connected through the positioning structure, installation and positioning of the amplitude-change pole welding structure can be rapidly completed under the action of the connecting column and the positioning column, the assembly precision is effectively guaranteed, and the operation difficulty is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of welding equipment, and in particular to a precise positioning welding device. Background Art

[0002] An ultrasonic welding machine is a welding device that transmits high-frequency vibrations to the workpiece to be welded, heating the weld point and achieving welding. It is particularly suitable for the manufacture and processing of plastic products. During the processing, if the welding head is not positioned accurately or is positioned crookedly, it will have a significant impact on the quality of the finished product. Therefore, the operator needs to disassemble and adjust the welding head before welding to ensure assembly accuracy. Under high-precision requirements, the welding head must not only have high assembly accuracy, but also must match different pressures and vibration frequencies. This requires the operator to disassemble, install, and position the welding head multiple times, which is difficult to operate and affects work efficiency. Utility Model Content

[0003] In order to improve the problem of difficulty in disassembling and positioning a welding head in the related art, the utility model provides a precise positioning welding device.

[0004] A precise positioning welding device comprises a frame, a guide rail mechanism arranged on the frame, a lifting welding mechanism and a mold mechanism arranged on the guide rail mechanism; the lifting welding mechanism comprises a supporting structure, a positioning structure arranged on the supporting structure and a variable amplitude welding structure arranged on the positioning structure; the positioning structure comprises a positioning chuck embedded in the supporting structure and a connecting plate arranged on the positioning chuck; the positioning chuck comprises a chuck base and a chuck positioning cover embedded and installed in the supporting structure; one side of the connecting plate has a plurality of connecting columns which are positioned and connected to the variable amplitude welding structure, and the other side of the connecting plate has a positioning column which is positioned and connected to the chuck positioning cover.

[0005] Furthermore, a positioning hole for cooperating with the positioning post is provided in the middle of the chuck positioning cover, and the positioning post is slidably connected to the positioning hole.

[0006] Furthermore, the chuck positioning cover is also provided with a plurality of chuck protrusions, and the plurality of chuck protrusions are arranged along the circumferential direction of the positioning hole; the connecting disk is provided with a positioning groove for matching the chuck protrusion; the chuck protrusion is engaged with or disengaged from the positioning groove.

[0007] Furthermore, the chuck positioning cover is provided with a plurality of connection positioning blocks along its circumferential direction, and the support structure is provided with connection positioning grooves for cooperating with the connection positioning blocks; the connection positioning blocks are engaged with or disengaged from the connection positioning grooves.

[0008] Furthermore, the lifting welding mechanism also includes a sensing structure, and the sensing structure includes a sensing fixing seat arranged on the supporting structure and a pressure sensor arranged on the sensing fixing seat.

[0009] Furthermore, the guide rail mechanism includes a first guide rail, a second guide rail and a driving structure for driving the lifting welding mechanism, which are arranged on the frame; the first guide rail and the second guide rail are vertically arranged, and the first guide rail and the second guide rail are respectively located on both sides of the width direction of the frame.

[0010] Furthermore, the driving structure includes a driving motor and a screw rod arranged above the frame, and the screw rod is vertically arranged and located between the first guide rail and the second guide rail; the supporting structure includes a sliding seat installed on the screw rod and a connecting seat arranged on the sliding seat, and the positioning structure and the variable amplitude welding structure are arranged on the connecting seat.

[0011] Furthermore, the mold mechanism includes a lower mold structure provided on the frame and an upper mold structure provided on the variable amplitude welding structure, and the upper mold structure faces the lower mold structure.

[0012] The utility model has the following advantages:

[0013] 1. The utility model is a precise positioning welding device. The lifting welding mechanism is provided with a supporting structure, a positioning structure and a variable amplitude welding structure. The supporting structure and the variable amplitude welding structure are connected by the positioning structure. When installing the variable amplitude welding structure, the chuck base and the chuck positioning cover are first connected, and then the supporting structure and the variable amplitude welding structure are connected and positioned by the connecting plate. Under the action of the connecting column and the positioning column, the installation of the variable amplitude welding structure can be completed quickly, and the positioning is completed after installation, avoiding multiple disassembly and adjustment, effectively reducing the difficulty of operation while ensuring assembly accuracy.

[0014] 2. The precise positioning welding device of the present invention, by providing a chuck protrusion and a positioning groove, can complete the installation and alignment of the connecting disk by simply aligning the chuck protrusion and inserting it into the positioning groove, thereby further improving the installation efficiency and installation accuracy of the connecting disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1A structure schematic view of a precise positioning welding device according to an embodiment of the present application;

[0017] Figure 2 A cross-sectional schematic view of a precise positioning welding device according to an embodiment of the present application;

[0018] Figure 3 A structure schematic view of a variable amplitude welding structure according to an embodiment of the present application;

[0019] Figure 4 A structure schematic view of a positioning structure according to an embodiment of the present application.

[0020] Explanation of reference signs:

[0021] 1, frame; 2, guide rail mechanism; 21, first guide rail; 22, second guide rail; 23, driving structure; 231, driving motor; 232, screw rod; 3, lifting welding mechanism; 31, support structure; 311, sliding seat; 312, connecting seat; 32, positioning structure; 321, positioning chuck; 3211, chuck base; 3212, chuck positioning cover; 32121, positioning hole; 32122, chuck protrusion; 32123, connecting positioning block; 322, connecting disc; 3221, connecting column; 3222, positioning column; 3223, positioning groove; 33, variable amplitude welding structure; 331, variable amplitude fixing seat; 332, variable amplitude rod; 333, transducer assembly; 34, sensing structure; 341, pressure sensor; 4, mold mechanism; 41, lower mold structure; 42, upper mold structure. DETAILED DESCRIPTION

[0022] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and the present application is not limited to the specific embodiments described herein as long as they remain within the scope of the present application.

[0023] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0024] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like, should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] Reference Figure 1 And Figure 2 A precise positioning welding device includes a rack 1, a guide rail mechanism 2 arranged on the rack 1, a lifting welding mechanism 3 arranged on the guide rail mechanism 2, and a mold mechanism 4. When the precise positioning welding device is running, the mold mechanism 4 is arranged on the rack 1 and the lifting welding mechanism 3 for clamping a workpiece, and the guide rail mechanism 2 drives the lifting welding mechanism 3 to move up and down to realize welding.

[0027] Specifically, the rack 1 is used to support various mechanisms, and in the embodiment, the rack 1 is a one-piece rack 1 to ensure structural strength and precision. In order to ensure the moving precision and supportability, the guide rail mechanism 2 includes a first guide rail 21, a second guide rail 22 arranged on the rack 1, and a driving structure 23 for driving the lifting welding mechanism 3; the first guide rail 21 and the second guide rail 22 are vertically arranged, and the first guide rail 21 and the second guide rail 22 are respectively located on both sides of the width direction of the rack 1. The driving structure 23 includes a driving motor 231 arranged above the rack 1 and a lead screw 232, the lead screw 232 is vertically arranged and located between the first guide rail 21 and the second guide rail 22, and the lifting welding mechanism 3 is installed on the lead screw 232. Under the driving of the driving motor 231, the lifting welding mechanism 3 moves up and down along the length direction of the lead screw 232.

[0028] The lifting welding mechanism 3 includes a support structure 31, a positioning structure 32 disposed on the support structure 31, and a variable amplitude welding structure 33 disposed on the positioning structure 32. The support structure 31 includes a sliding seat 311 mounted on the screw rod 232 and a connecting seat 312 disposed on the sliding seat 311. The connecting seat 312 and the sliding seat 311 can be threadedly connected to achieve fixation and detachability. The positioning structure 32 and the variable amplitude welding structure 33 are disposed on the side of the connecting seat 312 away from the sliding seat 311.

[0029] Reference Figure 3 as well as Figure 4 The positioning structure 32 includes a positioning chuck 321 embedded in the support structure 31 and a connecting plate 322 provided on the positioning chuck 321. The positioning chuck 321 includes a chuck base 3211 embedded in the connecting seat 312 and a chuck positioning cover 3212. The chuck base 3211 and the chuck positioning cover 3212 are fixedly installed and detachable through a threaded connection. Specifically, the connecting seat 312 is provided with a groove, the shape of which is adapted to the shape of the positioning chuck 321. The chuck base 3211 and the chuck positioning cover 3212 are embedded in the groove.

[0030] For positioning, the chuck positioning cover 3212 has a number of connection positioning blocks 32123 for engaging with the support structure 31, and a positioning hole 32121 for engaging with the connection plate 322. The connection positioning blocks 32123 are evenly arranged along the circumference of the chuck positioning cover 3212. The connection seat 312 is provided with a number of connection positioning grooves, the number of which is the same as the number of connection positioning blocks 32123, and they correspond one-to-one. The connection positioning blocks 32123 engage or disengage with the connection positioning grooves. The positioning chuck 321 can be installed and aligned simply by aligning the grooves with the connection positioning grooves and inserting the positioning chuck.

[0031] The connecting plate 322 is fittedly installed on the side of the positioning chuck 321 away from the connecting seat 312. In order to conveniently connect with the positioning chuck 321 and the variable amplitude welding structure 33, one side of the connecting plate 322 has several connecting columns 3221 connected to the variable amplitude welding structure 33, and the other side of the connecting plate 322 has a positioning column 3222 connected to the positioning hole 32121. Specifically, the positioning column 3222 is located in the middle of the connecting disk 322 and faces the chuck positioning cover 3212, the positioning hole 32121 is located in the middle of the chuck positioning cover 3212, and the positioning column 3222 is slidingly connected to the positioning hole 32121. In addition, the chuck positioning cover 3212 is also provided with a plurality of chuck protrusions 32122 arranged along the circumferential direction of the positioning hole 32121; the connecting positioning block 32123 is provided with a plurality of positioning grooves 3223 for cooperating with the chuck protrusion 32122, and the chuck protrusion 32122 is engaged with or disengaged from the positioning groove 3223.

[0032] By setting the positioning column 3222 and the positioning groove 3223, when the connecting disc 322 is installed, the positioning column 3222 and the positioning groove 3223 of the connecting disc 322 are aligned with the positioning hole 32121 and the chuck block 32122 respectively and inserted to complete the installation and alignment, and then the connecting disc 322 is fixed on the positioning chuck 321. The fixed mode can adopt threaded connection fixing or pneumatic clamping fixing.

[0033] The amplitude welding structure 33 includes an amplitude fixing seat 331 connected to the connecting disc 322, an amplitude rod 332 arranged on the amplitude fixing seat 331, and a transducer assembly 333. The amplitude fixing seat 331 is vertically arranged, and an adaptive groove and an adaptive hole for matching the connecting disc 322 and the connecting column 3221 are arranged on one side of the amplitude fixing seat 331. The connecting disc 322 is embedded and installed in the adaptive groove, and the connecting column 3221 is arranged through the adaptive hole on the side of the amplitude fixing seat 331. The amplitude fixing seat 331 is provided with a hole position for installing the amplitude rod 332, and the axis of the hole position is vertically arranged. The amplitude rod 332 is arranged through the hole position and is vertically arranged, and the transducer assembly 333 is installed on the upper end of the amplitude rod 332. The mold mechanism 4 includes a lower mold structure 41 arranged on the rack 1 and an upper mold structure 42 arranged on the amplitude welding structure 33. The upper mold structure 42 is specifically installed on the lower end of the amplitude rod 332, and the upper mold structure 42 faces the lower mold structure 41.

[0034] Looking back Figure 1 And Figure 2 In addition, the lifting welding mechanism 3 further includes a sensing structure 34, and the sensing structure 34 includes a sensing fixing seat arranged on the support structure 31 and a pressure sensor 341 arranged on the sensing fixing seat. When the amplitude welding structure 33 drives the mold structure to contact and weld, the pressure sensor 341 can instantly monitor the pressure received by the amplitude welding structure 33, so that the operator can know the pressure parameter and make corresponding adjustment.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0036] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A precise positioning welding device, comprising a frame (1), characterized in that: The invention also includes a guide rail mechanism (2) arranged on the frame (1), a lifting welding mechanism (3) arranged on the guide rail mechanism (2), and a mold mechanism (4); the lifting welding mechanism (3) includes a support structure (31), a positioning structure (32) arranged on the support structure (31), and a variable amplitude welding structure (33) arranged on the positioning structure (32); the positioning structure (32) includes a positioning chuck (321) embedded in the support structure (31) and a connecting plate (322) arranged on the positioning chuck (321); the positioning chuck (321) includes a chuck base (3211) embedded in the support structure (31) and a chuck positioning cover (3212); one side of the connecting plate (322) has a plurality of connecting columns (3221) that are connected to the variable amplitude welding structure (33) in a positioning manner, and the other side of the connecting plate (322) has a positioning column (3222) that is connected to the chuck positioning cover (3212) in a positioning manner.

2. A precise positioning welding device according to claim 1, characterized in that: A positioning hole (32121) for cooperating with the positioning post (3222) is provided in the middle of the chuck positioning cover (3212), and the positioning post (3222) is slidably connected to the positioning hole (32121).

3. The precise positioning welding device according to claim 2, characterized in that: The chuck positioning cover (3212) is further provided with a plurality of chuck protrusions (32122), and the plurality of chuck protrusions (32122) are arranged along the circumferential direction of the positioning hole (32121); the connecting plate (322) is provided with a positioning groove (3223) for matching the chuck protrusions (32122); the chuck protrusions (32122) are engaged with or disengaged from the positioning groove (3223).

4. The precise positioning welding device according to claim 1, characterized in that: The chuck positioning cover (3212) is provided with a plurality of connection positioning blocks (32123) along its circumferential direction, and the support structure (31) is provided with connection positioning grooves for matching the connection positioning blocks (32123); the connection positioning blocks (32123) are engaged with or disengaged from the connection positioning grooves.

5. The precise positioning welding device according to claim 1, characterized in that: The lifting welding mechanism (3) further includes a sensing structure (34), wherein the sensing structure (34) includes a sensing fixing seat arranged on the supporting structure (31) and a pressure sensor (341) arranged on the sensing fixing seat.

6. A precise positioning welding device according to any one of claims 1 to 5, characterized in that: The guide rail mechanism (2) comprises a first guide rail (21), a second guide rail (22) and a driving structure (23) for driving the lifting welding mechanism (3) arranged on the frame (1); the first guide rail (21) and the second guide rail (22) are arranged vertically, and the first guide rail (21) and the second guide rail (22) are respectively located on both sides of the width direction of the frame (1).

7. The precise positioning welding device according to claim 6, characterized in that: The driving structure (23) comprises a driving motor (231) and a screw rod (232) arranged above the frame (1); the screw rod (232) is arranged vertically and located between the first guide rail (21) and the second guide rail (22); the supporting structure (31) comprises a sliding seat (311) installed on the screw rod (232) and a connecting seat (312) arranged on the sliding seat (311); the positioning structure (32) and the amplitude-changing welding structure (33) are arranged on the connecting seat (312).

8. The precise positioning welding device according to claim 1, characterized in that: The mold mechanism (4) comprises a lower mold structure (41) arranged on the frame (1) and an upper mold structure (42) arranged on the variable amplitude welding structure (33), wherein the upper mold structure (42) faces the lower mold structure (41).

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