Micro product assembling and welding jig

Abstract

The invention discloses a tiny product assembling and welding jig which is characterized in that a plurality of uniformly distributed placing parts are integrally formed on a cover plate, jacking mechanisms for jacking bottom shell products are embedded in the placing parts, and a plurality of positioning mechanisms which are distributed at equal intervals and used for positioning the bottom shell products are mounted on a carrier body; the multiple positioning mechanisms are arranged on the carrier body and distributed at equal intervals, the lower end of the jacking mechanism is connected with the positioning mechanisms, the multiple pressing mechanisms which are distributed at equal intervals and used for pressing Z-shaped materials are installed at the rear end of the upper surface of the carrier body, the positioning mechanisms are arranged on the carrier body, and double-side positioning is carried out in an inclined wedge mode; the bottom shell product is positioned, the position of the bottom shell product is determined after the bottom shell product is placed, the bottom shell product can be fixed, the Z-shaped material piece can be accurately placed on the bottom shell product conveniently, the pressing mechanism is arranged in a matched mode, the Z-shaped material piece and the bottom shell product can be pressed and fixed, shaking in the welding process is prevented, and the welding precision is improved.

Description

Technical Field

[0001] The invention relates to a jig used for precise assembly and welding of specific parts and components, belonging to the technical field of mechanical manufacturing and processing equipment. Background Art

[0002] In the existing mechanical manufacturing process, there is often a lack of specially designed efficient fixtures for the assembly and welding of parts with complex shapes or high precision requirements. Traditional welding methods rely on manual positioning and fixing, which not only leads to low efficiency of assembly and welding, but also makes it difficult to ensure the relative position accuracy between parts, and is prone to welding deviations, which in turn affects the quality and performance of the product. When some automatic positioning fixtures are in use, they usually use an external drive device to provide power for positioning. When the system of such a drive device fails, it is easy to cause excessive clamping force, causing damage to the parts.

[0003] The bottom of some component products is a smooth plane. Since these components are small in size and thin in thickness, when supporting them, it is necessary to ensure that the supporting surface is also a smooth plane to ensure that positioning, pressing and fixing will not be damaged. When two smooth surfaces fit together, the intermolecular distance between them will decrease, and the intermolecular force will increase, resulting in a close fit between the two. This is called the "optical bonding phenomenon" or optical contact bonding phenomenon. This may cause the product to be adsorbed on the supporting surface. The components themselves are small in size and thin in thickness, and have a certain temperature in the later stage of welding. When a robot is used to grab them, it can only grab the edges. Since the bottom of the product is adsorbed to the supporting surface, the grasping force is large and may cause deformation at the grasping point. For this reason, we have designed a welding fixture for the assembly of tiny products. ‌ Summary of the invention

[0004] The invention provides a small product assembly welding jig, which solves the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A welding jig for assembling tiny products comprises a carrier body, a cover plate is installed at the front end of the upper surface of the carrier body, the cover plate is integrally formed with a plurality of evenly distributed placement parts, a bottom shell product is placed on the placement parts, a Z-shaped material is placed on the bottom shell product, a lifting mechanism for lifting the bottom shell product is embedded in the placement parts, a plurality of positioning mechanisms evenly spaced and used for positioning the bottom shell product are installed on the carrier body, the lower end of the lifting mechanism is connected to the positioning mechanism, and a plurality of clamping mechanisms evenly spaced and used for clamping the Z-shaped material are installed at the rear end of the upper surface of the carrier body.

[0006] Preferably, a plurality of abutment seats distributed at equal intervals are fixed to the rear side of the upper end surface of the cover plate, a stopper is provided on the right side of the placement portion, the stopper is used to contact the right end of the bottom shell product, and the rear end of the bottom shell product contacts the abutment seat. When the rear end and the right end of the bottom shell product contact the abutment seat and the stopper respectively, it indicates that the bottom shell product is placed in place; The cover plate is provided with a plurality of transverse holes which are distributed at equal intervals, and a longitudinal hole is provided on the right front side of each of the transverse holes.

[0007] Preferably, the upper surface of the carrier body is provided with a plurality of longitudinal grooves distributed at equal intervals, a transverse groove is provided on the front side of each of the longitudinal grooves, and the longitudinal grooves are connected to the transverse grooves, the transverse hole is located directly above the transverse groove, and the longitudinal hole is located directly above the front end of the longitudinal groove.

[0008] Preferably, the positioning mechanism comprises a moving member slidably installed in the longitudinal slide groove forward and backward, a longitudinal positioning member for pushing the bottom shell product is installed on the moving member, a transverse moving member is slidably installed in the transverse slide groove left and right, a transverse positioning member for pushing the product is installed on the transverse moving member, and the moving member is in sliding contact with the transverse moving member, the longitudinal positioning member and the transverse positioning member are slidably placed in the longitudinal hole and the transverse hole respectively, and parts of the longitudinal positioning member and the transverse positioning member pass through the longitudinal hole and the transverse hole and are located above the cover plate, thereby facilitating the positioning of the bottom shell product; Two longitudinal springs are installed at the front end of the moving member, and the longitudinal springs abut against the right end inner wall of the longitudinal slide groove. A transverse spring is arranged at the left end of the transverse moving member, and the left end of the transverse spring abuts against the left end inner wall of the transverse slide groove. The longitudinal spring makes the moving member tend to move backward, while the transverse spring makes the transverse moving member tend to move rightward.

[0009] Preferably, a mounting notch is provided on the front side of the upper surface of the moving member, a clamping notch is formed by cutting off a portion below the transverse moving member, a moving notch is provided above the transverse moving member, and the transverse moving member is slidably installed in the mounting notch of the moving member through the clamping notch and the moving notch; The left half of the rear end of the installation notch is cut away to form a pushing slope, and the left side of the moving notch is cut away to form a moving slope. The moving slope is in sliding contact with the pushing slope. When the moving part moves forward, the pushing slope will push the moving slope and make the moving slope move to the left. At this time, the transverse moving part will move to the left, and the longitudinal positioning part and the transverse positioning part installed on the moving part and the transverse moving part will move away from the placement part.

[0010] Preferably, the placing portion is penetrated by mounting holes from top to bottom, the lifting mechanism includes a fixing sleeve fixed in the mounting hole by screws, the upper surface of the fixing sleeve is recessed downward to form a lifting cavity, the bottom end of the lifting cavity is provided with a lifting port, a lifting column is slidingly arranged in the lifting cavity, the bottom end of the lifting column passes through the lifting port and is located below the fixing sleeve, a lifting plate is sleeved on the lifting column, and four rectangularly distributed lifting rods are vertically fixed on the lifting plate.

[0011] Preferably, an upper cover is screwed on the top end of the fixing sleeve, and the upper surface of the upper cover is flush with the upper surface of the placement portion. Four lifting openings are opened on the upper cover, and the four lifting rods are slidably placed in the four lifting openings respectively. A downward pressure spring is sleeved on the lifting column, and the upper and lower ends of the downward pressure spring are respectively abutted against the upper cover and the lifting plate. When the lifting plate contacts the bottom end of the lifting cavity, the top end of the lifting rod is flush with the upper surface of the upper cover. When the bottom shell product is placed above the placement portion and the upper cover, the lower surface of the bottom shell product will not have any protrusions or suspended parts, so that the entire bottom shell product is evenly stressed and will not deform when pressed down.

[0012] Preferably, a lifting slope is provided on the upper end surface of the transverse moving member, and a translation groove is provided at the bottom end of the lifting slope. The bottom end of the translation groove is designed to be horizontal, and a lifting slope is formed by cutting off a portion of the bottom end of the lifting column. The lifting slope is in sliding contact with the lifting slope. When the transverse moving member moves to the left, the bottom end of the lifting column will first move along the translation groove. At this time, the longitudinal positioning member and the transverse positioning member are away from the bottom shell product, and the height of the lifting column remains unchanged. When the lifting slope is about to contact the lifting slope, the longitudinal positioning member and the transverse positioning member are away from the bottom shell product for a distance, thereby causing the lifting column to gradually rise, which can avoid damage caused by collision between the bottom shell product and the longitudinal positioning member and the transverse positioning member during jacking.

[0013] Preferably, the clamping mechanism comprises a fixed shaft seat fixed above the carrier body, a rotating block is rotatably mounted on the fixed shaft seat through a shaft pin, a hanging ring is provided at the front end of the left surface of the rotating block and the fixed shaft seat, a tension spring is hung between the two hanging rings, and the tension spring makes the front end of the rotating block tend to deflect downward; A beryllium copper pressing block is fixed on the front side of the rotating block. A bird's beak is arranged on the beryllium copper pressing block. The surface of the bird's beak is coated with silicone rubber, and the hardness is 50A on the Shore hardness.

[0014] Beneficial effects of the present invention: 1. By setting a positioning mechanism on the carrier body and performing bilateral positioning by means of an oblique wedge, the bottom shell product can be quickly positioned and clamped, so that the position of the bottom shell product after placement is determined and can be fixed, which facilitates the accurate placement of the Z-shaped material on the bottom shell product. In combination with the clamping mechanism, the Z-shaped material and the bottom shell product can be clamped and fixed to prevent shaking during welding, thereby improving welding accuracy. 2. The longitudinal positioning parts and transverse positioning parts in the positioning mechanism are positioned by self-rebound of longitudinal springs and transverse springs. The bird beak in the clamping mechanism can also be clamped by the tension of the tension spring. When the cylinder or electric cylinder fails, the force in the entire positioning mechanism and clamping mechanism will not exceed the design range, thus avoiding damage to the bottom shell product and Z-shaped parts and improving safety. 3. By arranging a lifting mechanism above the positioning mechanism, when the positioning mechanism is positioned, the lifting rod in the lifting mechanism can be retracted, so that the bottom shell product is placed on the placement portion, and when the positioning mechanism releases the positioning of the bottom shell product, the lifting mechanism can push the bottom shell product to move upward to prevent the bottom shell product from being adsorbed on the placement portion, thereby facilitating its quick removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a front and cross-sectional view of a tiny product assembly welding jig proposed by the present invention; Figure 2 for Figure 1 A schematic diagram of a structure in which a cover plate is not provided; Figure 3 for Figure 2 A schematic diagram of the structure of the vehicle body; Figure 4 for Figure 1 Schematic diagram of the structure of the middle cover; Figure 5 for Figure 1 The enlarged schematic diagram at A in the middle; Figure 6 for Figure 2 The structural diagram of the positioning mechanism; Figure 7 It is a structural schematic diagram of the moving parts and the longitudinal positioning parts in the positioning mechanism; Figure 8 It is an exploded view of the transverse moving part and the lifting mechanism in the positioning mechanism; Fig. 9 for Figure 8 Bottom view of the middle lifting mechanism; Fig.10 for Figure 5 Assembly diagram of the product.

[0016] Numbers in the figure: 1, carrier body; 11, longitudinal slide; 12, transverse slide; 2, cover; 21, abutment seat; 22, longitudinal hole; 23, transverse hole; 24, placement part; 3, positioning mechanism; 31, longitudinal positioning member; 32, transverse positioning member; 33, moving member; 331, installation gap; 332, pushing inclined plane; 34, transverse moving member; 341, moving gap; 342, moving inclined plane; 343, clamping gap; 344, lifting inclined plane; 345, Translation slot; 35. Longitudinal spring; 36. Transverse spring; 4. Lifting mechanism; 41. Fixed sleeve; 411. Lifting cavity; 412. Lifting port; 42. Upper cover; 421. Lifting port; 43. Lifting plate; 44. Lifting column; 441. Lifting slope; 45. Lifting rod; 46. Pressing spring; 5. Clamping mechanism; 51. Fixed shaft seat; 52. Rotating block; 53. Beryllium copper pressure block; 54. Bird's beak; 55. Tension spring; 6. Bottom shell product; 61. Z-shaped parts. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1 - Fig.10 A welding jig for assembling micro-products comprises a carrier body 1, a cover plate 2 is installed on the front end of the upper surface of the carrier body 1, the cover plate 2 is integrally formed with a plurality of evenly distributed placement portions 24, a bottom shell product 6 is placed on the placement portion 24, a Z-shaped material 61 is placed on the bottom shell product 6, a lifting mechanism 4 for lifting the bottom shell product 6 is embedded in the placement portion 24, a plurality of positioning mechanisms 3 evenly spaced and used for positioning the bottom shell product 6 are installed on the carrier body 1, the lower end of the lifting mechanism 4 is connected to the positioning mechanism 3, and a plurality of clamping mechanisms 5 evenly spaced and used for clamping the Z-shaped material 61 are installed on the rear end of the upper surface of the carrier body 1.

[0019] Reference Figure 4 , Figure 5 A plurality of abutment seats 21 with equal spacing are fixed to the rear side of the upper surface of the cover plate 2, and a stopper is provided on the right side of the placement portion 24, the stopper is used to contact the right end of the bottom shell product 6, and the rear end of the bottom shell product 6 contacts the abutment seat 21. When the rear end and the right end of the bottom shell product 6 contact the abutment seat 21 and the stopper respectively, it indicates that the bottom shell product 6 is placed in place; The cover plate 2 is provided with a plurality of equally spaced transverse holes 23 , each of which has a longitudinal hole 22 on the right front side. The transverse hole 23 is located on the left side of the placement portion 24 , and the longitudinal hole 22 is located in front of the placement portion 24 .

[0020] Reference Figure 3 - Figure 5 The upper surface of the carrier body 1 is provided with a plurality of longitudinal grooves 11 distributed at equal intervals, and a transverse groove 12 is provided on the front side of each longitudinal groove 11, and the longitudinal grooves 11 are connected to the transverse grooves 12, the transverse hole 23 is located directly above the transverse groove 12, and the longitudinal hole 22 is located directly above the front end of the longitudinal groove 11.

[0021] Reference Figure 2 - Figure 8 The positioning mechanism 3 includes a moving member 33 that is slidably installed in the longitudinal slide groove 11, and a longitudinal positioning member 31 for pushing the bottom shell product 6 is installed on the moving member 33. A transverse moving member 34 is slidably installed in the transverse slide groove 12, and a transverse positioning member 32 for pushing the product is installed on the transverse moving member 34. The moving member 33 is in sliding contact with the transverse moving member 34. The longitudinal positioning member 31 and the transverse positioning member 32 are slidably placed in the longitudinal hole 22 and the transverse hole 23 respectively. Parts of the longitudinal positioning member 31 and the transverse positioning member 32 pass through the longitudinal hole 22 and the transverse hole 23 and are located above the cover plate 2, thereby facilitating the positioning of the bottom shell product 6. Two longitudinal springs 35 are installed at the front end of the moving part 33, and the longitudinal springs 35 abut against the inner wall of the right end of the longitudinal slide groove 11. A transverse spring 36 is provided at the left end of the transverse moving part 34, and the left end of the transverse spring 36 abuts against the inner wall of the left end of the transverse slide groove 12. The longitudinal spring 35 makes the moving part 33 tend to move backward, and the transverse spring 36 makes the transverse moving part 34 tend to move rightward. When the moving part 33 moves backward and the transverse moving part 34 moves rightward, the longitudinal positioning part 31 and the transverse positioning part 32 can respectively contact the front end and left end of the bottom shell product 6 and push it to move, so that the rear end and right end of the bottom shell product 6 respectively contact the stoppers on the abutment seat 21 and the placement part 24, thereby completing the positioning of the bottom shell product 6, facilitating the accurate placement of the Z-shaped material 61 on the bottom shell product 6, and improving the welding accuracy.

[0022] The front side of the upper surface of the moving member 33 is provided with an installation notch 331, a portion of the lower portion of the transverse moving member 34 is cut away to form a clamping notch 343, and a moving notch 341 is provided above the transverse moving member 34. The transverse moving member 34 is slidably installed in the installation notch 331 of the moving member 33 through the clamping notch 343 and the moving notch 341. The left half of the rear end of the installation notch 331 is cut away to form a push slope 332, and the left side of the moving notch 341 is cut away to form a moving slope 342, and the moving slope 342 is in sliding contact with the push slope 332; When the moving member 33 moves forward, the pushing inclined surface 332 will push the moving inclined surface 342 and make the moving inclined surface 342 move to the left. At this time, the transverse moving member 34 will move to the left. The longitudinal positioning member 31 and the transverse positioning member 32 installed on the moving member 33 and the transverse moving member 34 will be away from the placement portion 24, so that the bottom shell product 6 can be placed on the placement portion 24. At this time, the longitudinal spring 35 and the transverse spring 36 are both in a compressed state. When the moving member 33 is not acted upon by any force other than the longitudinal spring 35 and the transverse member 34, the longitudinal spring 35 will cause the moving member 33 to move backward, and the transverse spring 36 will cause the transverse member 34 to move rightward. The longitudinal positioning member 31 and the transverse positioning member 32 will respectively contact the front end and the left end of the bottom shell product 6 and push it to move, so that the rear end and the right end of the bottom shell product 6 will respectively contact the stop blocks on the abutment seat 21 and the placement portion 24, thereby completing the positioning of the bottom shell product 6.

[0023] Reference Figure 6 - Fig. 9 The placement portion 24 is penetrated by mounting holes from top to bottom, and the lifting mechanism 4 includes a fixing sleeve 41 fixed in the mounting hole by screws, and the upper surface of the fixing sleeve 41 is recessed downward to form a lifting cavity 411, and a lifting port 412 is provided at the bottom end of the lifting cavity 411. A lifting column 44 is provided in the lifting cavity 411 for sliding up and down, and the bottom end of the lifting column 44 passes through the lifting port 412 and is located below the fixing sleeve 41, and a lifting plate 43 is sleeved on the lifting column 44, and four rectangularly distributed lifting rods 45 are vertically fixed on the lifting plate 43.

[0024] The top screw of the fixing sleeve 41 is installed with an upper cover 42, the upper surface of the upper cover 42 is flush with the upper surface of the placement portion 24, and four lifting holes 421 are opened on the upper cover 42. Four lifting rods 45 are respectively slidably placed in the four lifting holes 421. A downward pressure spring 46 is sleeved on the lifting column 44, and the upper and lower ends of the downward pressure spring 46 are respectively in contact with the upper cover 42 and the lifting plate 43. The lower end of the lifting column 44 slides up and down through the lifting hole 41, 2 so as to contact with the surface of the traverse member 34 below, and there is a certain distance between the top of the lifting column 44 and the lower surface of the upper cover 42, so that the lifting column 44 can move up and down without contacting with the upper cover 42 to cause interference; When the lifting plate 43 contacts the bottom end of the lifting chamber 411, the top end of the lifting rod 45 is flush with the upper surface of the upper cover 42. When the bottom shell product 6 is placed on the placement portion 24 and the upper cover 42, the lower surface of the bottom shell product 6 will not have any protrusions or suspended parts, so that the entire bottom shell product 6 is evenly stressed and will not deform when pressed down.

[0025] The upper end surface of the transverse moving member 34 is provided with a lifting inclined surface 344, and the bottom end of the lifting inclined surface 344 is provided with a translation groove 345, the bottom end of the translation groove 345 is designed to be horizontal, and the bottom end of the lifting column 44 is cut off to form a lifting inclined surface 441, and the lifting inclined surface 441 is in sliding contact with the lifting inclined surface 344; When the transverse moving part 34 moves to the left, the bottom end of the lifting column 44 will first move along the translation groove 345. At this time, the longitudinal positioning part 31 and the transverse positioning part 32 are away from the bottom shell product 6, and the height of the lifting column 44 remains unchanged. When the lifting slope 441 contacts the lifting slope 344, the longitudinal positioning part 31 and the transverse positioning part 32 are away from the bottom shell product 6 for a distance, which will cause the lifting column 44 to gradually rise. This can prevent the bottom shell product 6 from colliding with the longitudinal positioning part 31 and the transverse positioning part 32 during jacking and causing damage. At this time, the lifting plate 43 and the lifting rod 45 rise synchronously with the lifting column 44, and the top part of the lifting rod 45 will be above the upper surface of the placement part 24, so that the entire bottom shell product 6 is lifted up, which makes it easier to remove the bottom shell product 6.

[0026] Reference Figure 1 , Figure 2 The clamping mechanism 5 includes a fixed shaft seat 51 fixed above the carrier body 1, and a rotating block 52 is rotatably mounted on the fixed shaft seat 51 through an axle pin. The rotating block 52 and the front end of the left surface of the fixed shaft seat 51 are both provided with hanging rings, and a tension spring 55 is hung between the two hanging rings. The tension spring 55 makes the front end of the rotating block 52 tend to deflect downward; A beryllium copper pressure block 53 is fixed to the front side of the rotating block 52, and a bird's beak 54 is arranged on the beryllium copper pressure block 53. The surface of the bird's beak 54 is covered with silicone and has a hardness of 50A on the Shore hardness. During normal use, the rear end of the rotating block 52 is connected to the push rod of the electric cylinder. The push rod of the electric cylinder is extended to cause the rear end of the rotating block 52 to move downward, and its front end will be lifted. When the Z-shaped material 61 is placed above the bottom shell product 6, the push rod of the electric cylinder contracts, and the tension spring 55 causes the front end of the rotating block 52 to deflect with the axle pin as the axis, and the bird's beak 54 will be pressed onto the Z-shaped material 61, thereby fixing the Z-shaped material 61 and the bottom shell material 6, which is convenient for subsequent welding operations.

[0027] Working principle: In actual use, a cylinder is set at the rear end of the carrier body 1. When the cylinder is in a retracted state, the push rod of the cylinder contacts the rear end of the moving part 33. An electric cylinder is installed above the carrier body 1 through a bracket. When the push rod of the electric cylinder is extended, the rear end of the rotating block 52 will be pressed down, and its front end will be lifted. A manipulator and a visual device are set on the front side of the carrier body 1. Before placing the bottom shell product 6, the push rod of the cylinder first extends and pushes the moving member 33 to move forward. When the moving member 33 moves forward, the longitudinal positioning member 31 installed on the moving member 33 will move forward together with it, and the pushing inclined surface 332 in the moving member 33 will push the moving inclined surface 342, and make the moving inclined surface 342 move to the left. At this time, the transverse moving member 34 and the transverse positioning member 32 will move to the left, so that the longitudinal positioning member 31 and the transverse positioning member 32 are away from the placement portion 24, with a larger space, and at this time, the top end of the lifting rod 45 is also above the placement portion 24; Afterwards, the manipulator cooperates with the visual device to place the bottom shell product 6 on the placement part 24, and the bottom shell product 6 will overlap above the four lifting rods 45, and then the push rod of the cylinder will shrink. Since the longitudinal spring 35 and the transverse spring 36 are both in a compressed state at this time, when the moving part 33 is not affected by the thrust of the cylinder push rod, the longitudinal spring 35 will cause the moving part 33 to move backward, and the transverse spring 36 will cause the transverse moving part 34 to move to the right, and the longitudinal positioning part 31 and the transverse positioning part 32 will respectively contact the front end and the left end of the bottom shell product 6 and push it to move. At this time, the lifting rod 45 shrinks to the lifting port 421, and the bottom end of the bottom shell product 6 is completely in contact with the upper surface of the placement part 24, so that the rear end and the right end of the bottom shell product 6 are respectively in contact with the stoppers on the abutment seat 21 and the placement part 24, thereby completing the positioning of the bottom shell product 6; Then the robot arm cooperates with the visual device to grab the Z-shaped material 61 and place it on the bottom shell product. After that, the push rod of the electric cylinder contracts, and the tension spring 55 makes the front end of the rotating block 52 deflect with the shaft pin as the axis. The bird's beak 54 will be pressed on the Z-shaped material 61, so that the Z-shaped material 61 and the bottom shell product 6 are fixed, and then laser welding is performed under the guidance of the visual device; After welding is completed, the push rod of the electric cylinder extends so that the rear end of the rotating block 52 moves downward, and its front end will be lifted. The push rod of the air cylinder extends again and moves the moving member 33 forward. When the moving member 33 moves forward, the transverse member 34 moves to the left, and the bottom end of the lifting column 44 will first move along the translation groove 345. At this time, the longitudinal positioning member 31 and the transverse positioning member 32 will be away from the bottom shell product 6, and the lifting slope 441 will contact the lifting slope 344. At this time, the longitudinal positioning member 31 and the transverse positioning member 32 will be away from the bottom shell product 6 for a certain distance before the lifting slope 344 will contact the lifting slope 441, which will cause the lifting column 44 to gradually rise, which can avoid the bottom shell product 6 from colliding with the longitudinal positioning member 31 and the transverse positioning member 32 during jacking and causing damage. At this time, the lifting plate 43 and the lifting rod 45 will rise synchronously with the lifting column 44, and the top part of the lifting rod 45 will be above the upper surface of the placement part 24, so that the entire bottom shell product 6 is lifted up, which makes it easier to remove the bottom shell product 6, and then a new bottom shell product 6 can be placed, and the above operation can be repeated.

[0028] By arranging the positioning mechanism 3 on the carrier body 1, bilateral positioning is performed by means of an oblique wedge, so that the bottom shell product 6 can be quickly positioned and clamped, so that the position of the bottom shell product 6 after placement is determined, and it can be fixed, so that the Z-shaped material 61 can be accurately placed on the bottom shell product 6, and the clamping mechanism 5 is arranged, which can clamp and fix the Z-shaped material 61 and the bottom shell product 6, prevent shaking during welding, and improve welding accuracy; The longitudinal positioning member 31 and the transverse positioning member 32 in the positioning mechanism 3 are positioned by self-rebound of the longitudinal spring 35 and the transverse spring 36. The bird beak 54 in the clamping mechanism 5 can also be clamped by the tension of the tension spring 55. When the cylinder or the electric cylinder fails, the force in the entire positioning mechanism 3 and the clamping mechanism 5 will not exceed the design range, thereby avoiding damage to the bottom shell product 6 and the Z-shaped material 61, thereby improving safety. By arranging a lifting mechanism 4 above the positioning mechanism 3, when the positioning mechanism 3 is positioned, the lifting rod 45 in the lifting mechanism 4 can be retracted, so that the bottom shell product 6 is placed on the placement portion 24. When the positioning mechanism 3 releases the positioning of the bottom shell product 6, the lifting mechanism 4 can push the bottom shell product 6 to move upward to prevent the bottom shell product 6 from being adsorbed on the placement portion 24, thereby facilitating its quick removal.

[0029] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding jig for assembling small products, characterized in that: The invention comprises a carrier body (1), a cover plate (2) being installed at the front end of the upper surface of the carrier body (1), the cover plate (2) being integrally formed with a plurality of evenly distributed placement portions (24), a bottom shell product (6) being placed on the placement portion (24), a Z-shaped material (61) being placed on the bottom shell product (6), a lifting mechanism (4) for lifting the bottom shell product (6) being embedded in the placement portion (24), a plurality of positioning mechanisms (3) being evenly distributed and used for positioning the bottom shell product (6) being installed on the carrier body (1), the lower end of the lifting mechanism (4) being connected to the positioning mechanism (3), and a plurality of clamping mechanisms (5) being evenly distributed and used for clamping the Z-shaped material (61) being installed at the rear end of the upper surface of the carrier body (1).

2. A micro product assembly welding jig according to claim 1, characterized in that: A plurality of abutment seats (21) distributed at equal intervals are fixed to the rear side of the upper end surface of the cover plate (2), a stopper is provided on the right side of the placement portion (24), the stopper is used to contact the right end of the bottom shell product (6), and the rear end of the bottom shell product (6) contacts the abutment seat (21); The cover plate (2) is provided with a plurality of transverse holes (23) distributed at equal intervals, and a longitudinal hole (22) is provided on the right front side of each transverse hole (23).

3. A micro product assembly welding jig according to claim 2, characterized in that: The upper surface of the carrier body (1) is provided with a plurality of longitudinal grooves (11) distributed at equal intervals, a transverse groove (12) is provided on the front side of each longitudinal groove (11), and the longitudinal grooves (11) are connected to the transverse grooves (12), the transverse holes (23) are located directly above the transverse grooves (12), and the longitudinal holes (22) are located directly above the front ends of the longitudinal grooves (11).

4. A micro product assembly welding jig according to claim 3, characterized in that: The positioning mechanism (3) comprises a moving member (33) slidably mounted in the longitudinal slide groove (11) in a forward and backward manner, a longitudinal positioning member (31) for pushing the bottom shell product (6) being mounted on the moving member (33), a transverse moving member (34) slidably mounted in the horizontal slide groove (12) in a leftward and rightward manner, a transverse positioning member (32) for pushing the product being mounted on the transverse moving member (34), and the moving member (33) and the transverse moving member (34) being in sliding contact with each other, and the longitudinal positioning member (31) and the transverse positioning member (32) being slidably disposed in the longitudinal hole (22) and the transverse hole (23) respectively; Two longitudinal springs (35) are installed at the front end of the moving member (33), and the longitudinal springs (35) abut against the inner wall of the right end of the longitudinal slide groove (11). A transverse spring (36) is arranged at the left end of the transverse moving member (34), and the left end of the transverse spring (36) abuts against the inner wall of the left end of the transverse slide groove (12).

5. A micro product assembly welding jig according to claim 4, characterized in that: The front side of the upper surface of the moving member (33) is provided with a mounting notch (331); a portion below the transverse moving member (34) is cut away to form a clamping notch (343); a moving notch (341) is provided above the transverse moving member (34); the transverse moving member (34) is slidably mounted in the mounting notch (331) of the moving member (33) via the clamping notch (343) and the moving notch (341); A push slope (332) is formed by cutting away a portion of the left half of the rear end of the installation notch (331), and a move slope (342) is formed by cutting away a portion of the left side of the move notch (341), and the move slope (342) is in sliding contact with the push slope (332).

6. A micro product assembly welding jig according to claim 5, characterized in that: The placement portion (24) is penetrated by a mounting hole from top to bottom, and the lifting mechanism (4) comprises a fixing sleeve (41) fixed in the mounting hole by screws, the upper surface of the fixing sleeve (41) is recessed downward to form a lifting cavity (411), the bottom end of the lifting cavity (411) is provided with a lifting opening (412), a lifting column (44) is slidably arranged in the lifting cavity (411) up and down, the bottom end of the lifting column (44) passes through the lifting opening (412) and is located below the fixing sleeve (41), a lifting plate (43) is sleeved on the lifting column (44), and four rectangularly distributed lifting rods (45) are vertically fixed on the lifting plate (43).

7. A micro product assembly welding jig according to claim 6, characterized in that: The top end screw of the fixing sleeve (41) is screwed with an upper cover (42), the upper surface of the upper cover (42) is flush with the upper surface of the placement portion (24), the upper cover (42) is provided with four lifting openings (421), the four lifting rods (45) are respectively slidably placed in the four lifting openings (421), the lifting column (44) is sleeved with a downward pressure spring (46), the upper and lower ends of the downward pressure spring (46) are respectively in contact with the upper cover (42) and the lifting plate (43).

8. The micro product assembly welding jig according to claim 6, characterized in that: The upper end surface of the transverse moving member (34) is provided with a lifting inclined surface (344), the bottom end of the lifting inclined surface (344) is provided with a translation groove (345), the bottom end of the translation groove (345) is designed to be horizontal, and the bottom end of the lifting column (44) is cut away to form a lifting inclined surface (441), and the lifting inclined surface (441) is in sliding contact with the lifting inclined surface (344).

9. The micro product assembly welding jig according to claim 1, characterized in that: The clamping mechanism (5) comprises a fixed shaft seat (51) fixed above the carrier body (1), a rotating block (52) being rotatably mounted on the fixed shaft seat (51) via an axle pin, a hanging ring being arranged at the front end of the left surface of the rotating block (52) and the fixed shaft seat (51), and a tension spring (55) being hung between the two hanging rings; A beryllium copper pressing block (53) is fixed to the front side of the rotating block (52), and a bird's beak (54) is provided on the beryllium copper pressing block (53).

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