Welding jig for crossbar assembly in a child stroller

By designing a specialized welding fixture, the problem of welding difficulties caused by the irregular shape of the crossbar assembly of the stroller was solved, achieving efficient and precise welding results.

CN224526361UActive Publication Date: 2026-07-21KUNSHAN KEXIANGYI ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN KEXIANGYI ELECTRONIC TECH CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-21

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Abstract

The utility model discloses a kind of middle cross bar subassembly welding jigs of child's pram, including base and the middle cross bar subassembly of being located at base, middle cross bar subassembly is composed of cross pipe and connecting piece;One end of middle cross bar is equipped with the positioning device of cooperation use, the other end of middle cross bar is equipped with the bearing seat of cooperation use;Base is further equipped with the clamping assembly of cooperation connecting piece use, clamping assembly includes clamping seat, the bearing block of being fixed in clamping seat and the fixed block of being rotatably connected in clamping seat, clamping seat is further equipped with the drive assembly of drive fixed block rotation, by drive assembly, so that fixed block exists abutment or separation two states relative to bearing block;When fixed block is abutted relative to bearing block, the position of connecting piece can be fixed;When fixed block is separated relative to bearing block, connecting piece can be fixed, by the jig, middle cross bar subassembly can be welded quickly and handled, improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically to a welding fixture for the crossbar assembly in a children's stroller. Background Technology

[0002] Although the crossbar assembly in a stroller consists of a cross tube and a connecting piece, both the cross tube and the connecting piece are irregularly shaped. The surfaces of the cross tube and the connecting piece have a certain curvature, and there is a certain angle at the connection between the cross tube and the connecting piece. If they are directly welded without the aid of a fixture, the next step of the process will inevitably be impossible to complete.

[0003] Therefore, there is an urgent need to provide a welding fixture for the crossbar assembly in a children's stroller. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a welding fixture for the crossbar assembly of a children's stroller. This fixture enables the rapid welding of the crossbar assembly, thereby improving work efficiency.

[0005] The technical solution of this utility model is: a welding fixture for a crossbar assembly in a children's stroller, including a base and a crossbar assembly disposed on the base, wherein the crossbar assembly is composed of a cross tube and a connecting piece; One end of the middle crossbar is provided with a positioning device for use, and the other end of the middle crossbar is provided with a bearing seat for use. The base is also provided with a clamping assembly for use with the connecting piece. The clamping assembly includes a clamping seat, a bearing block fixed to the clamping seat, and a fixing block rotatably connected to the clamping seat. The clamping seat is also provided with a driving assembly for driving the fixing block to rotate. The driving assembly enables the fixing block to be in two states relative to the bearing block: abutting or separating. When the fixing block abuts against the bearing block, it can fix the position of the connecting piece; When the fixing block separates from the bearing block, the connecting piece can be unsecured.

[0006] Furthermore, the driving component is a push-pull clamp, and the telescopic end of the push-pull clamp is connected to the fixed block.

[0007] Furthermore, one end of the fixing block is provided with a limiting groove, and a pin passes through the limiting groove and the telescopic end of the push-pull clamp to connect the push-pull clamp and the fixing block.

[0008] Furthermore, the bearing block is provided with a positioning pin for use with the connecting piece.

[0009] Furthermore, the positioning device consists of a positioning component and a bearing component. The positioning component includes a positioning seat and a movable seat. The movable seat moves relative to the positioning seat and forms a placement groove for the horizontal tube to be placed. The surface of the horizontal tube is provided with positioning holes, and the outer side of the movable seat is connected by a long block to a positioning pin that is used in conjunction with the positioning holes. The positioning pin is inserted into the positioning holes to fix the position of the horizontal tube.

[0010] Furthermore, the base is provided with a slide rail for use with a movable seat, and the movable seat can move linearly along the length of the slide rail.

[0011] Furthermore, the bearing assembly includes a connecting seat, which is provided with a mandrel for use with the horizontal tube, and the mandrel can be inserted into the horizontal tube.

[0012] Furthermore, it also includes a linear motion module connected to the clamping assembly. The clamping assembly is connected to the base via the linear motion module and can translate relative to the base to abut or separate the connecting piece from the horizontal tube.

[0013] Furthermore, the linear motion module includes a guide rail assembly, which is connected to the clamping assembly via a bracket, and a push-pull clamp is provided on one side of the bracket.

[0014] The beneficial technical effects of this utility model are: First, the position of the horizontal tube can be confirmed and fixed by the positioning device and the bearing seat. Second, the connecting piece is fixed by the clamping assembly. After the positions of the connecting piece and the horizontal tube are fixed, the connecting piece is driven to approach and abut against the horizontal tube by the linear moving module, so that personnel can directly weld the abutting position of the connecting piece and the horizontal tube.

[0015] The above method enables rapid and precise welding of components. Compared with direct manual welding, it not only improves welding accuracy but also welding efficiency.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the crossbar assembly of this utility model; Figure 3 This is a schematic diagram of the positioning device of this utility model; Figure 4This is a schematic diagram of the clamping assembly of this utility model; Figure 5 This is a schematic diagram of the linear motion module of this utility model.

[0018] The attached figures are labeled as follows: 100. Base; 110. Positioning device; 111. Positioning assembly; 1111. Positioning seat; 1112. Moving seat; 1113. Slide rail; 1114. Long block; 1115. Positioning pin; 120. Bearing seat; 130. Clamping assembly; 131. Clamping seat; 132. Bearing block; 133. Fixing block; 1331. Limiting groove; 134. Drive assembly; 140. Linear movement module; 141. Push-pull clamp; 142. Guide rail assembly; 143. Bracket; 200. Middle crossbar assembly; 210. Horizontal tube; 220. Connecting piece. Detailed Implementation

[0019] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship described in the embodiments and shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figures 1-5 As shown, this utility model specifically relates to a welding fixture for a crossbar assembly 200 in a children's stroller, including a base 100 and a crossbar assembly 200 disposed on the base 100, wherein the crossbar assembly 200 is composed of a cross tube 210 and a connecting piece 220; One end of the middle crossbar is provided with a positioning device 110 for use, and the other end of the middle crossbar is provided with a bearing seat 120 for use. The base 100 is also provided with a clamping assembly 130 for use with the connecting piece 220. The clamping assembly 130 includes a clamping seat 131, a bearing block 132 fixed to the clamping seat 131, and a fixing block 133 rotatably connected to the clamping seat 131. The clamping seat 131 is also provided with a driving assembly 134 for driving the fixing block 133 to rotate. The driving assembly 134 enables the fixing block 133 to be in two states: abutting or separating from the bearing block 132. When the fixing block 133 abuts against the bearing block 132, the position of the connecting piece 220 can be fixed. When the fixing block 133 separates from the bearing block 132, the connecting piece 220 can be released.

[0023] It should be noted that although the crossbar assembly 200 is composed of a cross tube 210 and a connecting piece 220, both the cross tube 210 and the connecting piece 220 are irregular shapes. The surfaces of the cross tube 210 and the connecting piece 220 have a certain curvature, and there is a certain angle at the connection between the cross tube 210 and the connecting piece 220. If they are directly welded without the aid of a fixture, the next step of the process will inevitably be impossible to complete.

[0024] When welding is required on the middle crossbar assembly 200, firstly, the crossbar 210 is placed on the base 100, so that one end of the middle crossbar 210 is connected to the positioning device 110 and the other end of the middle crossbar 210 is connected to the bearing seat 120. The position of the crossbar 210 can be determined and fixed by the positioning device 110 and the bearing seat 120.

[0025] Once the position of the horizontal tube 210 is determined, the connecting piece 220 is placed between the support block 132 and the fixing block 133. The driving assembly 134 drives the fixing block 133 to move relative to the support block 132, thereby fixing the position of the connecting piece 220 located between the fixing block 133 and the support block 132. After the position of the connecting piece 220 is confirmed, one end of the connecting piece 220 is in contact with the surface of the horizontal tube 210, and personnel can weld the contact point between the connecting piece 220 and the horizontal tube 210.

[0026] The drive assembly 134 is a push-pull clamp, and the telescopic end of the push-pull clamp is connected to the fixing block 133.

[0027] It should be noted that the push-pull clamp is a relatively conventional technical method in the existing technology, therefore, its structure and principle will not be described in detail.

[0028] One end of the fixing block 133 is provided with a limiting groove 1331. A pin passes through the limiting groove 1331 and the telescopic end of the push-pull clamp to connect the push-pull clamp and the fixing block 133.

[0029] The cooperation between the limiting groove 1331 and the pin prevents the fixing block 133 from being disturbed during rotation.

[0030] The bearing block 132 is equipped with a positioning pin 1115 that works with the connecting piece 220. The position of the connecting piece 220 can be quickly confirmed by the positioning pin 1115, and then fixed by the fixing block 133, reducing the time for personnel to check the position.

[0031] The positioning device 110 consists of a positioning component 111 and a bearing component. The positioning component 111 includes a positioning seat 1111 and a movable seat 1112. The movable seat 1112 moves relative to the positioning seat 1111 and forms a placement groove for the horizontal tube 210 to be placed. The surface of the horizontal tube 210 is provided with a positioning hole. The outer side of the movable seat 1112 is connected to a positioning pin 1115 that is used in conjunction with the positioning hole via a long block 1114. The positioning pin 1115 is inserted into the positioning hole to fix the position of the horizontal tube 210.

[0032] It should be noted that, firstly, one end of the horizontal tube 210 is placed on the support seat 120, and the other end of the horizontal tube 210 is placed on the positioning seat 1111. The position of the moving seat 1112 is adjusted simultaneously. The moving seat 1112 and the positioning seat 1111 cover each other to form a groove for the horizontal tube 210 to be placed. In addition, during the movement of the moving seat 1112, the positioning pin 1115 provided on the moving seat 1112 is inserted into the positioning hole of the horizontal tube 210. The positioning pin 1115 and the positioning hole cooperate with each other to finally determine the position of the horizontal tube 210 and ensure that the position of the horizontal tube 210 will not be shifted.

[0033] The base 100 is provided with a slide rail 1113 for use with the movable seat 1112, and the movable seat 1112 can move linearly along the length direction of the slide rail 1113.

[0034] The bearing assembly includes a connecting seat, which is provided with a mandrel for use with the horizontal tube 210, and the mandrel can be inserted into the horizontal tube 210.

[0035] It should be noted that when the horizontal tube 210 is placed in the placement groove, the mandrel is inserted into the other end of the horizontal tube 210 to provide certain support for the horizontal tube 210. Similarly, when the mandrel is inserted into the horizontal tube 210, the positioning pin 1115 mentioned above is inserted into the positioning hole to determine the final position of the horizontal tube 210.

[0036] It also includes a linear movement module 140 connected to the clamping assembly 130. The clamping assembly 130 is connected to the base 100 via the linear movement module 140 and can translate relative to the base 100 to abut or separate the connecting piece 220 from the horizontal tube 210.

[0037] It should be noted that in the above-mentioned technical solution, the connecting piece 220 can be directly abutted against the horizontal tube 210. In this application, another embodiment is provided, in which the position of the clamping component 130 is adjusted by adding a linear movement module 140 so as to abut the connecting piece 220 against the horizontal tube 210.

[0038] The linear motion module 140 includes a guide rail assembly 142, which is connected to the clamping assembly 130 via a bracket 143, and a push-pull clamp 141 is provided on one side of the bracket 143.

[0039] The above embodiments are merely specific implementations of this utility model, used to illustrate the technical solutions of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope disclosed in this utility model. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. A welding fixture for a crossbar assembly (200) in a child stroller, characterized in that, It includes a base (100) and a middle crossbar assembly (200) disposed on the base (100), the middle crossbar assembly (200) being composed of a cross tube (210) and a connecting piece (220); One end of the middle crossbar is provided with a positioning device (110) for use, and the other end of the middle crossbar is provided with a bearing seat (120) for use. The base (100) is also provided with a clamping assembly (130) for use with the connecting piece (220). The clamping assembly (130) includes a clamping seat (131), a bearing block (132) fixed to the clamping seat (131), and a fixing block (133) rotatably connected to the clamping seat (131). The clamping seat (131) is also provided with a driving assembly (134) for driving the fixing block (133) to rotate. The driving assembly (134) enables the fixing block (133) to be in two states: abutting or separating from the bearing block (132). When the fixing block (133) abuts against the bearing block (132), the position of the connecting piece (220) can be fixed; When the fixing block (133) is separated from the bearing block (132), the connecting piece (220) can be unsecured.

2. The welding fixture for the crossbar assembly (200) of the stroller according to claim 1, characterized in that, The drive assembly (134) is a push-pull clamp, and the telescopic end of the push-pull clamp is connected to the fixing block (133).

3. The welding fixture for the crossbar assembly (200) of the stroller according to claim 2, characterized in that, One end of the fixing block (133) is provided with a limiting groove (1331). A pin passes through the limiting groove (1331) and the telescopic end of the push-pull clamp to connect the push-pull clamp and the fixing block (133).

4. The welding fixture for the crossbar assembly (200) of the stroller according to claim 1, characterized in that, The bearing block (132) is provided with a positioning pin (1115) for use with the connecting piece (220).

5. The welding fixture for the crossbar assembly (200) of the stroller according to claim 1, characterized in that, The positioning device (110) consists of a positioning component (111) and a bearing component. The positioning component (111) includes a positioning seat (1111) and a movable seat (1112). The movable seat (1112) moves relative to the positioning seat (1111) and forms a placement groove for the horizontal tube (210) to be placed. The surface of the horizontal tube (210) is provided with a positioning hole. The outer side of the movable seat (1112) is connected to a positioning pin (1115) that is used in conjunction with the positioning hole via a long block (1114). The positioning pin (1115) is inserted into the positioning hole to fix the position of the horizontal tube (210).

6. The welding fixture for the crossbar assembly (200) of the stroller according to claim 5, characterized in that, The base (100) is provided with a slide rail (1113) for use with a movable seat (1112), and the movable seat (1112) can move linearly along the length direction of the slide rail (1113).

7. The welding fixture for the crossbar assembly (200) of the stroller according to claim 5, characterized in that, The bearing assembly includes a connecting seat, which is provided with a mandrel for use with the horizontal tube (210), and the mandrel can be inserted into the horizontal tube (210).

8. The welding fixture for the crossbar assembly (200) of the stroller according to claim 1, characterized in that, It also includes a linear movement module (140) connected to the clamping assembly (130), the clamping assembly (130) being connected to the base (100) via the linear movement module (140) and being able to translate relative to the base (100) to abut or separate the connecting piece (220) from the horizontal tube (210).

9. The welding fixture for the crossbar assembly (200) of the stroller according to claim 8, characterized in that, The linear motion module (140) includes a guide rail assembly (142), which is connected to the clamping assembly (130) via a bracket (143), and a push-pull clamp (141) is provided on one side of the bracket (143).