Clutch welding tool

Abstract

The invention provides a clutch welding tool, and relates to the technical field of welding tools, the clutch welding tool comprises a three-jaw chuck, a circular base coaxially arranged with the three-jaw chuck is arranged below the three-jaw chuck, and three outer side open grooves are formed in the peripheral surface of the circular base in an annular array shape; according to the storage box, the twisting piece and the dial indicator are adjacently stored through the sponge storage pad, and the twisting insertion groove is designed to be of an oval special structure, so that the abutting piece cannot be operated without the twisting piece, a worker is forced to take the twisting piece, the worker can synchronously see the dial indicator, associated reminding is formed, and the working efficiency is improved. The problems that the end face flatness of the clutch accessory needs to be detected through the dial indicator before welding so as to guarantee the welding quality and the subsequent use safety, but the detection link is often forgotten or simplified due to the fact that a welding tool does not have mandatory flow guide of clamping, detection and welding in actual production, and the welding quality is influenced are solved. And unqualified accessories are prevented from entering the next process.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, and more particularly to a clutch welding fixture. Background Technology

[0002] In the clutch manufacturing process, the welding process is the core link to ensure the transmission stability and structural strength of the clutch. The flatness of the end face of the clutch parts before welding directly determines the welding quality. If there are defects such as tilting, unevenness, etc. on the end face of the parts, problems such as uneven weld thickness and insufficient fusion are likely to occur during welding. This can lead to abnormal noise, accelerated wear, and even safety hazards such as clutch slippage and failure during subsequent use of the finished clutch. Therefore, in order to ensure welding quality, the flatness of the end face of the clutch parts is usually checked with a dial indicator before welding to ensure that the height deviation of each point on the end face is controlled within the preset tolerance range before the welding process can begin. However, in actual production operations, the above-mentioned inspection process is often forgotten or simplified due to various factors: current clutch welding fixtures mostly only have basic clamping functions and do not provide mandatory guidance for the clamping, inspection and welding process. After the staff completes the clamping of the parts, they need to manually take the dial indicator from the tool cabinet for inspection. If the production task is heavy and the pace is tight, they may skip the inspection process and start welding based solely on visual judgment of the flatness of the end face, resulting in unqualified parts flowing into the next process. Moreover, since the dial indicator and the fixture are not actually structurally related and are placed separately, if the staff does not deliberately memorize the inspection steps after completing the clamping of the parts next to the fixture, they may easily overlook the inspection requirements because the tools are not within the operating range. Summary of the Invention

[0003] This invention relates to a clutch welding fixture, which solves the problem that clutch parts need to be tested for end face flatness with a dial indicator before welding to ensure welding quality and subsequent safety. However, in actual production, the welding fixture lacks a mandatory process guide for clamping, testing, and welding, and the dial indicator is placed separately from the fixture. When production tasks are heavy, the pace is tight, or the staff does not consciously memorize the testing steps, the testing steps are often forgotten or simplified, resulting in unqualified parts flowing into the next process.

[0004] This invention provides a clutch welding fixture, specifically comprising: a three-jaw chuck, a circular base coaxially arranged below the three-jaw chuck, a mounting groove formed at the axial center of the top surface of the circular base, and a bottom connecting post mounted at the axial center of the bottom surface of the three-jaw chuck, the bottom connecting post being rotatably connected to the mounting groove via a bearing; an annular pressing groove formed at the top surface of the circular base, the annular pressing groove being coaxially arranged with the mounting groove, and three outer slots arranged in an annular array on the outer circumference of the circular base, each outer slot having a circular clamping groove formed on its inner side, and each circular clamping groove having a threaded through hole connected to the annular pressing groove at its axial center; a clamping stud threadedly installed in each threaded through hole, a circular block coaxially arranged with the front end of the clamping stud being fixedly installed, the circular block being slidably inserted into the circular clamping groove, and a torsion slot with an elliptical groove structure formed at the axial center of the front end of the circular block, the circular block, the torsion slot, and the clamping stud together forming a set of clamping components.

[0005] Furthermore, an annular clamping block that matches the structural dimensions of the annular clamping groove is fixedly installed on the bottom end face of the three-jaw chuck. The annular clamping block is rotatably inserted into the annular clamping groove. The thickness of the circular block is less than the depth of the circular clamping groove. When the rear end of the clamping stud is in close contact with the annular clamping block located in the annular clamping groove, the rear end face of the circular block does not contact the rear side of the inner end of the circular clamping groove.

[0006] Furthermore, a circular mounting plate coaxially arranged with the bottom end face of the circular base is fixedly installed thereon, and the diameter of the circular mounting plate is larger than the diameter of the circular base; the outer circumferential surface of the circular mounting plate has six mounting and fitting notches arranged in a ring array; the top surface of the inner end of the three outer slots is provided with a limiting groove that penetrates the outer circumferential surface of the circular base, and the limiting groove has an isosceles trapezoidal groove structure.

[0007] Furthermore, it also includes a storage box, on which a lid is rotatably installed at the front edge of the top surface of the storage box, and a limiting block is fixedly installed on the top surface of the lid. The limiting block has an isosceles trapezoidal block structure.

[0008] Furthermore, when the bottom surface of the lid is in contact with the top surface of the storage box, the height distance from the top surface of the lid to the bottom surface of the storage box is consistent with the height of the outer slot; when the storage box is placed inside an outer slot, the limiting block slides into the limiting groove opened on the top surface of the inner end of the outer slot.

[0009] Furthermore, a sponge storage pad is embedded inside the storage box, and a dial indicator storage slot is opened on the top surface of the sponge storage pad, which houses and places a dial indicator.

[0010] Furthermore, the top surface of the sponge storage pad is also provided with a twisting component storage groove, in which a twisting component is stored. The twisting component has an elliptical cylindrical structure, and the diameter of the twisting component is consistent with the diameter of the twisting slot.

[0011] Furthermore, the shaft of the torsion member has a torsion fit opening, which is square in shape, and the side length of the torsion fit opening is consistent with the side length of the square hole in the three-jaw chuck.

[0012] This invention provides a clutch welding fixture, which has the following beneficial effects: This invention uses a three-jaw chuck as a clamping fixture. Leveraging its self-centering characteristic, it can coaxially clamp clutch components. Simultaneously, the three-jaw chuck and the circular base are coaxially assembled via a bottom connecting column, bearing, and mounting groove. In the unlocked state, the three-jaw chuck can rotate freely via the bearing, allowing operators to adjust the component angle at any time according to welding point requirements without disassembly and reassembly. When locked, the three sets of clamping members are arranged in a ring array, forming a three-point uniform radial lock on the ring clamping blocks through clamping studs. This balanced force and secure locking completely prevent the fixture from rotating due to vibration or external forces during welding, satisfying both the flexibility of multi-angle welding and ensuring the stability of the welding process.

[0013] The present invention uses a sponge storage pad to store the twisting component and the dial indicator adjacent to each other in the storage box. The twisting slot is designed with a special elliptical structure, so that the clamping component cannot be operated without the twisting component. When the staff is forced to take out the twisting component, they will simultaneously see the dial indicator, forming an associated reminder. This reminds the staff to check the flatness of the end face of the component with the dial indicator, so as to avoid problems such as uneven welding gaps and insufficient weld strength caused by the end face tilting, and further ensure the welding quality.

[0014] The square torsion fit opening of the torsion component shaft of this invention has the same side length as the square hole of the three-jaw chuck. The operator does not need to carry special tools. He can simply use a conventional chuck wrench to adjust the three-jaw chuck, insert it into the torsion fit opening to drive the clamping stud to rotate, thereby locking or unlocking the tooling. This simplifies the tool carrying and operation process and improves work efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0017] In the attached diagram: Figure 1 A schematic diagram of the top isometric structure of the present invention is shown; Figure 2 A schematic diagram of the bottom isometric structure of the present invention is shown; Figure 3 A schematic diagram of the present invention is shown in the state where the storage box, circular base, dial indicator, and torsion member are separated. Figure 4 The present invention is shown Figure 3 A magnified view of the structure at point A in the middle; Figure 5 This diagram shows a top isometric view of the three-jaw chuck, circular base, and clamping member of the present invention in their separated states. Figure 6 The present invention is shown Figure 5 A magnified schematic diagram of the structure at point B in the middle; Figure 7 This diagram shows a bottom isometric view of the three-jaw chuck, circular base, and clamping member of the present invention in a separated state. Figure 8 A cross-sectional structural schematic diagram of the present invention is shown; Figure 9 The present invention is shown Figure 8 Schematic diagram of the structure with the middle clamping component removed; List of reference numerals 1. Three-jaw chuck; 101. Annular clamping block; 102. Bottom connecting post; 2. Circular base; 201. Circular mounting plate; 202. Mounting notch; 203. Outer groove; 204. Limiting slide groove; 205. Annular pressing groove; 206. Mounting groove; 207. Bearing; 208. Circular clamping groove; 209. Threaded through hole; 3. Storage box; 301. Box cover; 302. Limiting insert; 303. Sponge storage pad; 304. Dial indicator storage slot; 305. Torque component storage slot; 4. Dial indicator; 5. Torque component; 501. Torque fitting opening; 6. Clamping component; 601. Round block; 602. Torque slot; 603. Clamping stud. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Please refer to Figures 1 to 9 : This invention proposes a clutch welding fixture, comprising: a three-jaw chuck 1, a circular base 2 coaxially arranged below the three-jaw chuck 1, a mounting groove 206 formed at the axial center of the top surface of the circular base 2, and a bottom connecting post 102 mounted at the axial center of the bottom of the three-jaw chuck 1, the bottom connecting post 102 and the mounting groove 206 being rotatably connected by a bearing 207; an annular pressing groove 205 formed at the top surface of the circular base 2, the annular pressing groove 205 being coaxially arranged with the mounting groove 206; three outer slots 203 arranged in an annular array on the outer circumference of the circular base 2, each outer slot 203 having a circular clamping groove 208 formed on the inner side of its inner end, and each circular clamping groove 208 having a threaded through hole 209 communicating with the annular pressing groove 205 at its axial center; each threaded through hole 209 having threads. A clamping stud 603 is installed, and a circular block 601 coaxially arranged with the front end of the clamping stud 603 is fixedly installed. The circular block 601 is slidably inserted into the circular clamping groove 208. A torsion slot 602 with an elliptical groove structure is opened at the axial part of the front end face of the circular block 601. The circular block 601, the torsion slot 602 and the clamping stud 603 together form a set of clamping parts 6. An annular clamping block 101 matching the structural size of the annular pressing groove 205 is fixedly installed on the bottom end face of the three-jaw chuck 1. The annular clamping block 101 is rotatably inserted into the annular pressing groove 205. The thickness of the circular block 601 is less than the depth of the circular clamping groove 208. When the rear end of the clamping stud 603 is in close contact with the annular clamping block 101 located in the annular pressing groove 205, the rear end face of the circular block 601 does not contact the inner rear side of the circular clamping groove 208.

[0020] The circular base 2 has a circular mounting plate 201 fixedly installed on its bottom end face, which is coaxial with the circular base 2. The diameter of the circular mounting plate 201 is larger than that of the circular base 2. The outer circumference of the circular mounting plate 201 has six mounting notches 202 arranged in a ring array. Therefore, during fixed installation, the circular base 2 can be installed on the workbench by fasteners engaging with the mounting notches 202. The top surface of the inner end of each of the three outer slots 203 has a limiting slide groove 204 that penetrates the outer circumference of the circular base 2. The limiting slide groove 204 has an isosceles trapezoidal groove structure. The system also includes a storage box 3. A box cover 301 is rotatably installed on the front edge of the top surface of the storage box 3. A limiting insert 302 is fixedly installed on the top surface of the box cover 301. The limiting insert 302 has an isosceles trapezoidal block structure. When the bottom surface of the box cover 301 is in contact with the top surface of the storage box 3, the distance from the top surface of the box cover 301 to the bottom surface of the storage box 3 is... The height distance is consistent with the height of the outer slot 203; when the storage box 3 is placed inside an outer slot 203, the limiting block 302 slides into the limiting groove 204 opened on the top surface of the inner end of the outer slot 203; a sponge storage pad 303 is embedded inside the storage box 3, and a dial indicator storage groove 304 is opened on the top surface of the sponge storage pad 303, and a dial indicator 4 is placed inside the dial indicator storage groove 304. The top surface of the sponge storage pad 303 is also provided with a torsion component storage groove 305, which stores a torsion component 5. The torsion component 5 has an elliptical cylindrical structure, and the diameter of the torsion component 5 is consistent with the diameter of the torsion slot 602. A torsion fitting opening 501 is provided at the axis of the torsion component 5. The torsion fitting opening 501 has a square opening structure, and the side length of the torsion fitting opening 501 is consistent with the side length of the square hole in the three-jaw chuck 1.

[0021] The working principle of this embodiment: The clutch component to be welded is placed between the jaws of the three-jaw chuck 1. By adjusting the jaw spacing of the three-jaw chuck 1, and utilizing its self-centering characteristic, the clutch component is coaxially clamped, ensuring that the component remains in the tooling axis position throughout the subsequent welding process, avoiding welding deviations due to eccentricity. The bottom connecting post 102 at the bottom of the three-jaw chuck 1 is rotatably connected to the mounting groove 206 of the circular base 2 via a bearing 207, and the annular abutment block 101 at the bottom of the three-jaw chuck 1 is slidably inserted into the annular abutment groove 205 of the circular base 2. This structure allows the three-jaw chuck 1 to rotate freely after clamping the component. The operator can rotate the three-jaw chuck 1 to adjust the welding angle of the component according to the welding position requirements, improving the flexibility of the welding operation. When the clutch component is adjusted to the target welding angle and the three-jaw chuck 1 needs to be fixed to prevent it from rotating, the operation procedure is as follows: First, remove the storage box 3 from the outer slot 203 of the circular base 2. Since the limiting insert 302 of the storage box 3 and the limiting slide groove 204 of the outer slot 203 are in sliding engagement with an isosceles trapezoidal structure, simply pull the storage box 3 outward in the horizontal direction to release the limit and remove it. After opening the box cover 301, simultaneously remove the internally stored torsion member 5 and dial indicator 4. Insert the torsion member 5 into the torsion slot 602 of the clamping member 6 (both have the same diameter to ensure stable torque transmission). By rotating the torsion member 5, the clamping stud 603 is driven to rotate in the threaded through hole 209. Since the clamping stud 603 and the clamping slot 609 are in sliding engagement with the outer slot 203, the storage box 3 can be removed by simply pulling it outward in the horizontal direction. The threaded through hole 209 is threaded. During rotation, the clamping stud 603 will be pushed into the annular pressing groove 205 along the thread direction until the rear end of the clamping stud 603 is tightly fitted with the annular pressing block 101 in the annular pressing groove 205. Repeat the above operation to clamp the clamping studs 603 of the three sets of clamping parts 6 against the annular pressing block 101. By applying force evenly at three points, the annular pressing block 101 is radially locked, thereby fixing the three-jaw chuck 1 which is rigidly connected to the annular pressing block 101. This completely prevents the three-jaw chuck 1 from rotating due to vibration or external force during the welding process, ensuring the stability of the welding position. Furthermore, the side length of the torsion fit opening 501 is consistent with the side length of the square hole in the three-jaw chuck 1. Therefore, when the rotating torsion member 5 drives the clamping stud 603 to rotate in the threaded through hole 209, no additional tools are required. Simply insert the plug of the chuck wrench that cooperates with the three-jaw chuck 1 into the torsion fit opening 501 and turn the chuck wrench to drive the rotating torsion member 5 to rotate simultaneously, thereby realizing the operation of driving the clamping stud 603 to rotate in the threaded through hole 209. Furthermore, the twisting slot 602 has an elliptical slot structure. Through the design of this special structure, it is impossible to insert and drive the clamping part 6 to rotate without the cooperation of the twisting part 5. This requires the operator to take the twisting part 5 out of the twisting part storage slot 305 to achieve a forced operation, thereby ensuring that the operator will see the dial indicator 4 stored in the dial indicator storage slot 304 at the same time, thus achieving a related reminder. The sponge storage pad 303 inside the storage box 3 has both a dial indicator storage slot 304 and a torsion part storage slot 305, which are arranged adjacent to each other. When the staff needs to take out the torsion part 5, they will inevitably see the dial indicator 4 stored at the same time. This design reminds the staff that after fixing the three-jaw chuck 1 and before welding, the inspection steps must be performed to avoid omissions. The measuring head of the dial indicator 4 is placed against the end face of the clamped clutch component, and the dial indicator 4 is moved slowly. The height deviation of each point on the end face is read by the deflection of the dial indicator pointer. If the pointer deflection exceeds the preset tolerance range, it means that the end face of the clutch component is tilted. The clamping state of the three-jaw chuck 1 needs to be readjusted until the flatness of the end face meets the welding requirements. After confirming that the three-jaw chuck 1 is securely locked and the end face of the clutch components is flat, welding can be performed on the components. During the welding process, the entire fixture remains stable without any risk of displacement or rotation. After welding, the clamping stud 603 of the clamping component 6 is rotated in the opposite direction by the torsion member 5 to disengage the clamping stud 603 from the annular clamping block 101, thus releasing the fixation of the three-jaw chuck 1. Then, the jaws of the three-jaw chuck 1 are released, and the welded clutch disc is removed. Finally, the dial indicator 4 and the torsion member 5 are placed into the corresponding storage slots of the storage box 3, the box cover 301 is closed, and the storage box 3 is reinserted into the outer slot 203. The limiting insert 302 and the limiting slide 204 work together to achieve secure storage, completing the fixture reset and preparing for the next welding operation.

Claims

1. A clutches welding tool comprising a three jaw chuck (1), characterized in that, The three-jaw chuck (1) is provided below with a circular base (2) coaxial with the three-jaw chuck (1), the top end surface of the circular base (2) is provided with an installation groove (206) at the axial position, the bottom axial position of the three-jaw chuck (1) is provided with a bottom connecting column (102), and the bottom connecting column (102) is rotatably connected with the installation groove (206) through a bearing (207).

2. A clutch welding tool as claimed in claim 1, wherein The top end surface of the circular base (2) is provided with an annular pressing groove (205), the annular pressing groove (205) is coaxial with the installation groove (206), the outer circumferential surface of the circular base (2) is provided with three outer grooves (203) in an annular array, the inner end surface of each outer groove (203) is provided with a circular pressing groove (208), and the axial position of each circular pressing groove (208) is provided with a threaded hole (209) in communication with the annular pressing groove (205).

3. A clutch welding tool as claimed in claim 2, wherein The bottom end surface of the three-jaw chuck (1) is fixedly provided with an annular pressing block (101) matched with the structure size of the annular pressing groove (205), and the annular pressing block (101) is rotatably inserted into the annular pressing groove (205).

4. A clutch welding tool as claimed in claim 3, wherein The thickness of the circular block (601) is smaller than the depth of the circular pressing groove (208), and when the rear end of the pressing stud (603) is closely attached to the annular pressing block (101) in the annular pressing groove (205), the rear end surface of the circular block (601) is not in contact with the rear end surface of the circular pressing groove (208). The bottom end surface of the circular base (2) is fixedly provided with a circular mounting plate (201) coaxial with the circular base (2), and the diameter of the circular mounting plate (201) is greater than the diameter of the circular base (2). The outer circumferential surface of the circular mounting plate (201) is provided with six installation matching grooves (202) in an annular array, and the inner end top surface of each outer groove (203) is provided with a limiting sliding groove (204) penetrating through the outer circumferential surface of the circular base (2). Further comprising a storage box body (3), the top end surface of the storage box body (3) is rotatably provided with a box cover (301) at the front edge position, and the top end surface of the box cover (301) is fixedly provided with a limiting plug (302), and the limiting plug (302) is in isosceles trapezoidal block structure.

5. A clutch welding tool as claimed in claim 4, wherein When the bottom end surface of the box cover (301) is attached to the top end surface of the storage box body (3), the height distance from the top end surface of the box cover (301) to the bottom end surface of the storage box body (3) is consistent with the height of the outer slot (203); when the storage box body (3) is placed in an outer slot (203), the limiting plug (302) and the limiting sliding groove (204) formed in the inner end surface of the outer slot (203) are slidingly connected.

6. A clutch welding tool as claimed in claim 5, wherein The sponge storage pad (303) is embedded in the storage box body (3), and a dial gauge storage groove (304) is formed in the top end surface of the sponge storage pad (303). The dial gauge (4) is placed in the dial gauge storage groove (304).

7. A clutch welding tool as claimed in claim 6, wherein A twisting element storage groove (305) is also formed in the top end surface of the sponge storage pad (303), and a twisting element (5) is stored in the twisting element storage groove (305). The twisting element (5) is in an elliptical column structure, and the diameter of the twisting element (5) is consistent with the diameter of the twisting insertion groove (602).

8. A clutch welding tool as claimed in claim 7, wherein, A twisting cooperation opening (501) is formed in the shaft center of the twisting element (5), and the twisting cooperation opening (501) is in a square opening structure. The side length of the twisting cooperation opening (501) is consistent with the side length of the square hole in the three-jaw chuck (1).

Images