Welding spot positioning clamp

Abstract

The utility model relates to a welding spot positioning clamp, which belongs to the technical field of SIP (Session Initiation Protocol) packaging devices and comprises a positioning platform, a positioning ring is fixedly arranged on the upper side of the positioning platform, and a plurality of positioning components are arranged on the circumference of the inner side of the positioning ring at equal intervals. A positioning gear ring located on the outer side of the positioning ring is rotationally arranged on the upper side of the positioning platform, driving assemblies for driving the positioning gear ring to rotate are arranged on the outer side of the positioning gear ring, the positioning gear ring rotates and drives the multiple positioning assemblies to rotate towards the circle center of the positioning ring, and a material ejecting mechanism is arranged on the lower side of the positioning platform. According to the positioning clamp, the SIP device on the inner side of the positioning ring can be positioned, the length of each positioning assembly can be adjusted, that is, the rotating distance in the vertical direction and the rotating distance in the horizontal direction are inconsistent, SIP devices of different sizes can be positioned, and the universality of the positioning clamp is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of SIP packaging devices, and in particular relates to a soldering point positioning fixture. Background Art

[0002] SIP is to assemble multiple active electronic components with different functions and optional passive devices together to realize a single standard package with certain functions, thus forming a system or subsystem. SIP packaging integrates multiple functional chips in one package to achieve a basically complete function. The traditional SIP packaging process requires the SIP device to be positioned before subsequent welding.

[0003] For example, in the Chinese utility model with announcement number CN220427287U and name of a universal fixture for parallel seam spot welding of SIP packaged devices, the utility model includes a shell positioning plate, the lower side of the shell positioning plate is provided with a first placement groove for placing the shell, and the upper side is provided with a second placement groove for placing the cover plate; a shell positioning base, the shell positioning base and the shell positioning plate are inlaid with each other to form a shell positioning assembly; a positioning bottom plate, the positioning bottom plate is connected to the lower side of the shell positioning base, and the positioning bottom plate is provided with a positioning blind hole for fixing on a parallel seam welding machine. Although the above-mentioned prior art can accurately position and reliably clamp, the shape and size of the positioning bottom plate are fixed, so it is better for the same batch of SIP devices, but it cannot be used for SIP devices of different batches with inconsistent sizes, making the versatility poor, so now a solder spot positioning fixture is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a welding point positioning fixture with simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A welding spot positioning fixture comprises a positioning platform, a positioning ring is fixedly provided on the upper side of the positioning platform, a plurality of positioning components are equidistantly provided on the inner circumference of the positioning ring, a positioning gear ring is rotatably provided on the upper side of the positioning platform and is located on the outer side of the positioning ring, a driving component for driving the positioning gear ring to rotate is provided on the outer side of the positioning gear ring, and the rotation of the positioning gear ring simultaneously drives the plurality of positioning components to rotate toward the center of the positioning ring, and a material ejecting mechanism is provided on the lower side of the positioning platform.

[0007] As a further optimization scheme of the utility model, the positioning assembly includes a rotating ring rotatably arranged on the inner side of the positioning ring and a plurality of driving teeth fixedly arranged on one side of the rotating ring and meshing with the inner side of the positioning gear ring. The other side of the positioning ring is provided with a positioning protrusion located on the inner side of the positioning ring.

[0008] As a further optimization solution of the utility model, a positioning groove slidably connected to one end of the positioning protrusion is provided on the inner side of the rotating ring, and a positioning screw is provided on the upper side of the rotating ring to pass through the positioning groove and fix the positioning protrusion to one side of the rotating ring.

[0009] As a further optimization solution of the utility model, a positioning groove slidably connected to one end of the positioning protrusion is provided on the inner side of the rotating ring, and a positioning screw is provided on the upper side of the rotating ring to pass through the positioning groove and fix the positioning protrusion to one side of the rotating ring.

[0010] As a further optimization scheme of the utility model, the driving assembly includes a servo motor fixedly arranged on the lower side of the positioning platform and a gear fixedly arranged on the output end of the servo motor, and a plurality of external teeth meshing with the gear are fixedly arranged on the outer side of the positioning gear ring.

[0011] As a further optimization scheme of the utility model, the material pushing mechanism includes a push rod which vertically slides through the center of the positioning platform and a top plate which is fixedly arranged at the upper end of the push rod and located on the upper surface of the positioning platform; a return spring which is connected to the lower surface of the positioning platform is fixedly arranged on the push rod; a push rod is rotatably arranged at the lower end of the push rod; a lift rod is rotatably arranged at the lower end of the push rod; a support rod which is fixedly arranged in the middle of the lift rod and is connected to the lower surface of the positioning platform.

[0012] The beneficial effect of the utility model is that in the utility model, the positioning assembly can be driven to rotate on the inner side of the positioning ring by rotating the positioning gear ring, so that the positioning assembly rotates toward the center of the positioning ring. Since the positioning assembly adopts a cam-like structure, the SIP device on the inner side of the positioning ring can be positioned, and the length of each positioning assembly can be adjusted, that is, the vertical and horizontal rotation distances are inconsistent, and SIP devices of different sizes can be positioned, thereby improving the versatility of the positioning fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0014] Figure 2 It is a second overall structural schematic diagram of the utility model;

[0015] Figure 3 It is a right-side overall structural schematic diagram of the utility model;

[0016] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0017] In the figure: 1. positioning platform; 2. positioning assembly; 201. rotating ring; 202. driving tooth; 203. positioning protrusion; 204. positioning groove; 205. positioning screw; 206. through groove; 207. fixing screw; 3. positioning ring; 4. positioning gear ring; 5. gear; 6. external tooth; 7. top plate; 8. servo motor; 9. push rod; 10. push rod; 11. reset spring; 12. tilting rod; 13. support rod. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1

[0020] like Figure 1 , Figure 2 As shown, a welding spot positioning fixture includes a positioning platform 1, a positioning ring 3 is fixedly provided on the upper side of the positioning platform 1, a plurality of positioning components 2 are equidistantly provided on the inner circumference of the positioning ring 3, a positioning gear ring 4 is rotatably provided on the upper side of the positioning platform 1 and is located outside the positioning ring 3, a servo motor 8 is fixedly provided on the lower side of the positioning platform 1, and a gear 5 is fixedly provided on the output end of the servo motor 8, a plurality of external teeth 6 meshing with the gear 5 are fixedly provided on the outer side of the positioning gear ring 4, and the positioning gear ring 4 rotates and drives the plurality of positioning components 2 to rotate toward the center of the positioning ring 3. When in use, the output end of the servo motor 8 drives the gear 5 to rotate, drives the external teeth 6 to rotate, so that the positioning gear ring 4 rotates a certain angle on the upper side of the positioning platform 1, and then drives the plurality of positioning components 2 to rotate toward the center of the positioning ring 3 at the same time, so that the SIP device at the center of the positioning ring 3 is clamped and positioned.

[0021] like Figure 1 , Figure 4As shown, the positioning assembly 2 includes a rotating ring 201 rotatably arranged on the inner side of the positioning ring 3 and a plurality of driving teeth 202 fixedly arranged on one side of the rotating ring 201 and meshing with the inner side of the positioning gear ring 4. A positioning protrusion 203 located on the inner side of the positioning ring 3 is arranged on the other side of the positioning ring 3. A through groove 206 is provided on the inner side of the positioning ring 3. The rotating ring 201 rotates on the inner side of the through groove 206. A fixing screw 207 that rotates through the rotating ring 201 is provided on the inner side of the through groove 206. When in use, when the positioning gear ring 4 rotates on the upper side of the positioning platform 1, it drives the several driving teeth 202 meshing therewith to rotate, and drives the rotating ring 201 on one side of the driving tooth 202 to rotate around the fixing screw 207, so that the positioning protrusion 203 on the other side of the rotating ring 201 rotates toward the center of the positioning ring 3. Since the positioning protrusion 203 and the rotating ring 201 form a cam structure, the SIP device at the center of the positioning ring 3 can be clamped and positioned, and since multiple positioning protrusions 203 clamp at the same time, the SIP device is always positioned at the center of the positioning platform 1, and the positioning accuracy can be guaranteed.

[0022] like Figure 1 , Figure 4 As shown, a positioning groove 204 is provided on the inner side of the rotating ring 201 to be slidably connected to one end of the positioning protrusion 203, and a positioning screw 205 is provided on the upper side of the rotating ring 201 to pass through the positioning groove 204 to fix the positioning protrusion 203 on one side of the rotating ring 201. When in use, one end of the positioning protrusion 203 can be slidably adjusted on one side of the rotating ring 201, and the positioning protrusion 203 is fixed by the positioning screw 205, so that the distance of each vertical and horizontal rotation can be inconsistent, so that SIP devices of different sizes can be clamped and positioned, thereby improving the versatility of the clamp.

[0023] Example 2

[0024] like Figure 1 , Figure 3 As shown, a lifting mechanism is provided on the lower side of the positioning platform 1, and the lifting mechanism includes a lift rod 9 which vertically slides through the center of the positioning platform 1 and a top plate 7 which is fixedly arranged at the upper end of the lift rod 9 and located on the upper surface of the positioning platform 1. A reset spring 11 which is connected to the lower surface of the positioning platform 1 is fixedly arranged on the lift rod 9. The reset spring 11 can restore the top plate 7 to a state of contacting the upper surface of the positioning platform 1 when the lift rod 12 is not pressed, so as to facilitate the next positioning and clamping. A push rod 10 is rotatably provided at the lower end of the lift rod 9, a lift rod 12 is rotatably provided at the lower end of the push rod 10, and a support rod 13 which is fixedly connected to the lower surface of the positioning platform 1 is rotatably provided in the middle of the lift rod 12.

[0025] During use, after the spot welding is completed, it is only necessary to press one end of the tilting rod 12 to make the tilting rod 12 rotate around the support rod 13, driving the push rod 10 at the other end of the tilting rod 12 to slide up, pushing the push rod 9 to pass through the positioning platform 1 to push up the top plate 7 on the upper surface of the positioning platform 1, so as to facilitate the SIP device with relatively small thickness to be ejected from the positioning ring 3, facilitate removal, and improve efficiency.

[0026] It should be noted that, when using this welding spot positioning fixture, first put the SIP device that needs spot welding on the upper side of the top plate 7, then drive the gear 5 to rotate through the output end of the servo motor 8, drive the outer gear 6 to rotate, so that the positioning gear ring 4 rotates a certain angle on the upper side of the positioning platform 1. When the positioning gear ring 4 rotates on the upper side of the positioning platform 1, it drives a number of driving teeth 202 meshing with it to rotate, and drives the rotating ring 201 on one side of the driving teeth 202 to rotate around the fixing screw 207, so that the positioning protrusion 203 on the other side of the rotating ring 201 rotates toward the center of the positioning ring 3. Since the positioning protrusion 203 and the rotating ring 201 form a cam structure, the SIP device at the center of the positioning ring 3 can be clamped and positioned. After the spot welding is completed, it is only necessary to press one end of the tilting rod 12 to make the tilting rod 12 rotate around the support rod 13, drive the push rod 10 at the other end of the tilting rod 12 to slide up, and push the push rod 9 to pass through the positioning platform 1 to push up the top plate 7 on the upper surface of the positioning platform 1, so as to facilitate the SIP device with a relatively small thickness. The IP device ejects the positioning ring 3.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A solder joint positioning fixture, comprising a positioning platform (1), characterized in that: A positioning ring (3) is fixedly arranged on the upper side of the positioning platform (1), and a plurality of positioning components (2) are equidistantly arranged on the inner circumference of the positioning ring (3). A positioning gear ring (4) located outside the positioning ring (3) is rotatably arranged on the upper side of the positioning platform (1), and a driving component for driving the positioning gear ring (4) to rotate is arranged on the outer side of the positioning gear ring (4). The rotation of the positioning gear ring (4) simultaneously drives the plurality of positioning components (2) to rotate toward the center of the positioning ring (3). A material ejecting mechanism is arranged on the lower side of the positioning platform (1).

2. A solder joint positioning fixture according to claim 1, characterized in that: The positioning assembly (2) comprises a rotating ring (201) rotatably arranged on the inner side of the positioning ring (3) and a plurality of driving teeth (202) fixedly arranged on one side of the rotating ring (201) and meshing with the inner side of the positioning gear ring (4); the other side of the positioning ring (3) is provided with a positioning protrusion (203) located on the inner side of the positioning ring (3).

3. A solder joint positioning fixture according to claim 2, characterized in that: The inner side of the rotating ring (201) is provided with a positioning groove (204) slidably connected to one end of the positioning protrusion (203), and the upper side of the rotating ring (201) is provided with a positioning screw (205) that passes through the positioning groove (204) and fixes the positioning protrusion (203) to one side of the rotating ring (201).

4. A solder joint positioning fixture according to claim 3, characterized in that: A through slot (206) is provided on the inner side of the positioning ring (3), and the rotating ring (201) rotates on the inner side of the through slot (206). A fixing screw (207) is provided on the inner side of the through slot (206) and is rotatably penetrated by the rotating ring (201).

5. The solder joint positioning fixture according to claim 1, characterized in that: The driving assembly comprises a servo motor (8) fixedly arranged on the lower side of the positioning platform (1) and a gear (5) fixedly arranged on the output end of the servo motor (8); a plurality of external teeth (6) meshing with the gear (5) are fixedly arranged on the outer side of the positioning gear ring (4).

6. A solder joint positioning fixture according to claim 1, characterized in that: The ejection mechanism comprises an ejector rod (9) which vertically slides through the center of the positioning platform (1) and a ejector plate (7) which is fixedly arranged at the upper end of the ejector rod (9) and located on the upper surface of the positioning platform (1); a return spring (11) which is connected to the lower surface of the positioning platform (1) is fixedly arranged on the ejector rod (9); a push rod (10) is rotatably arranged at the lower end of the ejector rod (9); a tilting rod (12) is rotatably arranged at the lower end of the push rod (10); and a support rod (13) which is fixedly connected to the lower surface of the positioning platform (1) is rotatably arranged in the middle of the tilting rod (12).

Images