A component clamping auxiliary device for multiple loading stages

By designing a multi-stage assembly and clamping auxiliary device, and using longitudinal and lateral drive cylinders to control the movement of the positioning pins, the problem of difficult assembly caused by excessively large positioning hole angles in automotive parts assembly was solved, achieving precise positioning and smooth clamping of parts.

CN224574939UActive Publication Date: 2026-07-31WUHAN CHANGHUA CHUANGYUAN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN CHANGHUA CHUANGYUAN AUTO PARTS CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

During the assembly of automotive parts, an excessively large relative angle between the lateral and longitudinal positioning holes can cause difficulties in assembly, making it impossible to assemble the parts properly.

Method used

Design a multi-stage assembly clamping auxiliary device. Utilize longitudinal and transverse drive cylinders to control the movement of the longitudinal and transverse locating pins, enabling clamping that avoids locating holes on different planes. Through the cooperation of the transverse and longitudinal drive cylinders, solve the problem of assembly failure when the locating pins are extended.

Benefits of technology

It achieves precise positioning and clamping of positioning holes on different planes, solves the problem of assembly difficulties caused by component interference, and ensures that parts can be assembled smoothly.

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Abstract

This utility model discloses a multi-stage assembly clamping auxiliary device, comprising a first mounting base and a second mounting base. A transverse drive cylinder is mounted on the first mounting base, and a longitudinal drive cylinder is mounted on the second mounting base. The output end of the transverse drive cylinder is connected to a mounting head, which is equipped with a sensor and a transverse positioning pin. The output end of the longitudinal drive cylinder is connected to a head, which is L-shaped and has a mounting plate. A sensor and a longitudinal positioning pin are mounted on the top of the mounting plate. The transverse and longitudinal positioning pins are perpendicular to each other, and the side surface of the mounting plate is perpendicular to the transverse positioning pin on the mounting head. This utility model, through the design of the longitudinal and transverse drive cylinders, controls the movement of the longitudinal and transverse positioning pins to achieve clamping that avoids collisions between two positioning holes on different planes. This solves the problem of inability to assemble parts when the relative angle between the first and second positioning holes is too large, resulting in the positioning pins protruding.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and more specifically, to a clamping auxiliary device for multiple parts assembly. Background Technology

[0002] In automobile manufacturing, parts often require assembly and welding. During assembly, multiple locating holes frequently exhibit excessively large relative angles, preventing proper installation. To address this, the locating pins must first be retracted, and after the part is mounted onto the tooling, they are then retracted, and the locating pins are used for positioning. Figure 1 The components shown are part A and part B. Part B is provided with a transverse positioning hole and a longitudinal positioning hole.

[0003] The assembly is difficult because the relative angle between the lateral and longitudinal positioning holes is too large. The general assembly logic is that positioning holes should be secured with positioning pins. After component A is assembled, component B is then installed on top of component A. Component B has positioning hole 1 and positioning hole 2. Positioning hole 2 allows for normal assembly, but because the relative angle between positioning hole 2 and positioning hole 1 is too large, if the lateral positioning pin is extended, assembly is impossible.

[0004] Therefore, it is necessary to propose a component clamping auxiliary device for multiple assembly to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides a multi-stage assembly clamping auxiliary device to solve the problems of assembly difficulties and assembly interference that prevent assembly during the welding manufacturing process.

[0006] According to one aspect of the present invention, a component clamping auxiliary device for multiple assembly is provided, comprising a first mounting base and a second mounting base. A transverse drive cylinder is mounted on the first mounting base, and a longitudinal drive cylinder is mounted on the second mounting base. The output end of the transverse drive cylinder is connected to a mounting head, which is provided with a sensor and a transverse positioning pin. The output end of the longitudinal drive cylinder is connected to a head, which is L-shaped and has a mounting plate. A sensor and a longitudinal positioning pin are provided on the top of the mounting plate. The transverse positioning pin and the longitudinal positioning pin are perpendicular to each other, and the side end face of the mounting plate is perpendicular to the transverse positioning pin on the mounting head.

[0007] Based on the above scheme, preferably, the mounting plate is also equipped with a limiting pad, and the top of the limiting pad is provided with a limiting hole. The limiting hole has a U-shaped structure. When the output end of the transverse drive cylinder drives the transverse positioning pin to move, the transverse positioning pin passes through the limiting hole.

[0008] Based on the above scheme, the preferred embodiment includes a base component and a connector. The connector is perpendicular to the base component and connected by rivets. One end of the connector is bent downward to form a connecting edge. A first positioning hole is provided on the connecting edge, and a second positioning hole is provided on the connecting plate.

[0009] Preferably, based on the above scheme, the transverse drive cylinder and the longitudinal drive cylinder are manually driven cylinders.

[0010] This utility model discloses a multi-stage assembly clamping auxiliary device. By designing a longitudinal drive cylinder and a transverse drive cylinder, the movement of the longitudinal positioning pin and the transverse positioning pin is controlled to achieve clamping of two positioning holes on different planes. This solves the problem that when the relative angle between the first positioning hole and the second positioning hole is too large, the positioning pin is extended and the assembly cannot be completed. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the multi-assembly component of this utility model;

[0013] Figure 2 This is a perspective view of a multi-stage assembly clamping auxiliary device according to the present invention;

[0014] Figure 3 This is another perspective view of a component clamping auxiliary device according to the present invention.

[0015] Explanation of icon numbers:

[0016] 1. First mounting base; 11. Lateral drive cylinder; 12. Mounting head; 13. Sensor; 14. Lateral positioning pin;

[0017] 2. Second mounting base; 21. Longitudinal drive cylinder; 22. Connector; 23. Mounting plate; 24. Sensor; 25. Longitudinal positioning pin; 26. Limiting pad; 27. Limiting hole;

[0018] 3. Base component; 31. Rivet;

[0019] 4. Connector; 41. Connecting edge; 42. First positioning hole; 43. Second positioning hole. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further 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 its scope.

[0021] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0022] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0023] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0027] Please see Figure 1 and combined Figure 2 , Figure 3 As shown, the present invention provides a component clamping auxiliary device for multiple assembly, comprising a first mounting base 1 and a second mounting base 2, wherein the first mounting base 1 and the second mounting base 2 are used to provide an installation base.

[0028] Specifically, the first mounting base 1 of this utility model is equipped with a transverse drive cylinder 11, and the second mounting base 2 is equipped with a longitudinal drive cylinder 21. The output end of the transverse drive cylinder 11 is connected to a mounting head 12. The mounting head 12 is equipped with a sensor 13 and a transverse positioning pin 14. The output end of the longitudinal drive cylinder 21 is connected to a head 22. The head 22 is L-shaped and is equipped with a mounting plate 23. The top of the mounting plate 23 is equipped with a sensor 24 and a longitudinal positioning pin 25. The transverse positioning pin 14 and the longitudinal positioning pin 25 are perpendicular to each other, and the side end face of the mounting plate 23 is perpendicular to the transverse positioning pin 14 on the mounting head 12.

[0029] In practical application, the auxiliary device for clamping and assembling parts in the phased assembly of this utility model first fixes the first mounting base 1 and the second mounting base 2 on the corresponding worktable, and then adjusts the position of the device according to the structure of the phased assembly.

[0030] The base component 3 of the sectional assembly is perpendicularly arranged with the connector 4 and connected by rivets 31. The connector 4 has a first positioning hole 42 on its connecting edge 41 and a second positioning hole 43 on its connecting plate. During operation, the extension and retraction of the transverse positioning pin 14 and the longitudinal positioning pin 25 are controlled by the transverse drive cylinder 11 and the longitudinal drive cylinder 21 (manual drive cylinder), respectively.

[0031] The component of this utility model includes a base 3 and a connector 4. The connector 4 is perpendicular to the base 3 and connected by a rivet 31. One end of the connector 4 is bent downward to form a connecting edge 41. A first positioning hole 42 is provided on the connecting edge 41, and a second positioning hole 43 is provided on the connecting plate.

[0032] Specifically, after connector 4 is installed on the longitudinal positioning pin 25, the transverse positioning pin 14 retracts to avoid it. Once stable, the transverse drive cylinder 11 advances, and the transverse positioning pin 14 also advances. After the transverse positioning pin 14 enters the first positioning hole 42, the transverse drive cylinder 11 extends to its position. The PLC detects the position signal of the transverse drive cylinder 11 and executes its internal logic program, causing the transverse drive cylinder 11 to maintain its extended position. Thus, connector 4 is properly installed, and the robot automatically performs welding. After welding is completed, the robot sends a welding completion signal. Upon receiving the signal, the PLC executes its internal logic, causing the transverse drive cylinder 11 to retract and the transverse positioning pin 14 to retract, allowing for successful part removal.

[0033] After the part is picked up, the sensor 24 signal is OFF. At this time, the PLC receives the signal and its internal logic runs, the horizontal drive cylinder 11 is depressurized, and the cylinder is in a free state. The horizontal drive cylinder 11 can operate freely, and consequently, the horizontal positioning pin 14 is also in a free state. The horizontal drive cylinder 11 can be used to control forward and backward movement. In the next loading cycle, the connecting part 4 can be loaded smoothly again with the horizontal positioning pin 14 in the retracted state.

[0034] Furthermore, the present invention also provides a limiting pad 26 on the mounting plate 23. The top of the limiting pad 26 is provided with a limiting hole 27. The limiting hole 27 has a U-shaped structure. When the output end of the transverse drive cylinder 11 drives the transverse positioning pin 14 to move, the transverse positioning pin 14 passes through the limiting hole 27.

[0035] Preferably, the transverse drive cylinder 11 and the longitudinal drive cylinder 21 are manually driven cylinders.

[0036] When clamping is required, if the relative angle between the first positioning hole 42 and the second positioning hole 43 is large, the positioning pin can be retracted first to avoid the position of the component. After the component is placed in place, the transverse positioning pin 14 is driven to pass through the first positioning hole 42 of the connector 4 and into the U-shaped limiting hole 27 of the upper limit pad 26 of the mounting plate 23; at the same time, the longitudinal positioning pin 25 is driven to pass through the second positioning hole 43 of the connector plate to complete the positioning and clamping. The perpendicular setting of the side end face of the mounting plate 23 to the transverse positioning pin 14, and the perpendicular setting of the transverse positioning pin 14 and the longitudinal positioning pin 25, ensures accurate positioning of the positioning holes on different planes.

[0037] This utility model discloses a multi-stage component clamping auxiliary device. By designing a longitudinal drive cylinder 21 and a transverse drive cylinder 11, the device controls the movement of the longitudinal positioning pin 25 and the transverse positioning pin 14 to achieve avoidance clamping of two positioning holes on different planes. This solves the problem that when the relative angle between the first positioning hole 42 and the second positioning hole 43 is too large, the positioning pins are extended, and the component cannot be installed.

[0038] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A subassembly jig assist device, characterized by, The device includes a first mounting base and a second mounting base. The first mounting base is equipped with a transverse drive cylinder, and the second mounting base is equipped with a longitudinal drive cylinder. The output end of the transverse drive cylinder is connected to a mounting head, which is equipped with a sensor and a transverse positioning pin. The output end of the longitudinal drive cylinder is connected to a head, which is L-shaped and has a mounting plate. The top of the mounting plate is equipped with a sensor and a longitudinal positioning pin. The transverse positioning pin and the longitudinal positioning pin are perpendicular to each other, and the side end face of the mounting plate is perpendicular to the transverse positioning pin on the mounting head.

2. A subassembly aid as claimed in claim 1, characterised in that The mounting plate is also equipped with a limiting pad, and the top of the limiting pad is provided with a limiting hole. The limiting hole has a U-shaped structure. When the output end of the transverse drive cylinder drives the transverse positioning pin to move, the transverse positioning pin passes through the limiting hole.

3. The subassembly aid of claim 1, wherein, The component assembly includes a base and a connector. The connector is perpendicular to the base and connected by rivets. One end of the connector is bent downward to form a connecting edge. The connecting edge is provided with a first positioning hole and a second positioning hole.

4. The subassembly aid of claim 1 wherein, The lateral drive cylinder and the longitudinal drive cylinder are manually operated.