A welding jig for assembling tiny products

Abstract

The present invention discloses a welding jig for assembling micro-products, wherein the cover plate is integrally formed with a plurality of evenly distributed placement parts, and a lifting mechanism for lifting the bottom shell product is embedded in the placement part, and a plurality of positioning mechanisms distributed at equal intervals and used for positioning the bottom shell product are installed on the carrier body, and the plurality of positioning mechanisms are distributed at equal intervals, and the lower end of the lifting mechanism is connected to the positioning mechanism, and a plurality of clamping mechanisms distributed at equal intervals and used for clamping Z-shaped materials are installed on the rear end of the upper surface of the carrier body. By arranging the positioning mechanism on the carrier body, bilateral positioning is performed by means of an oblique wedge to position the bottom shell product, so that the position of the bottom shell product after placement is determined and it can be fixed, which facilitates the precise placement of the Z-shaped material on the bottom shell product, and cooperates with the provided clamping mechanism, which can clamp and fix the Z-shaped material and the bottom shell product to prevent shaking during welding and improve welding accuracy.

Description

Technical Field

[0001] The invention relates to a jig for precisely assembling and welding specific parts, and belongs to the technical field of mechanical manufacturing and processing equipment. Background Art

[0002] In existing mechanical manufacturing processes, there is often a lack of specially designed, efficient jigs for the assembly and welding of parts with complex shapes or high precision requirements. Traditional welding methods rely heavily on manual positioning and fixation, which not only leads to low assembly and welding efficiency, but also makes it difficult to ensure the relative position accuracy between parts, making welding deviations prone to occur, thus affecting product quality and performance. Some automatic positioning jigs, when in use, typically use an external drive device to provide power for positioning. When such a drive system fails, it can easily lead to excessive clamping force, causing damage to the parts.

[0003] The bottom of some component products is a smooth plane. Due to the small size and thickness of these components, when supporting them, it is necessary to ensure that the supporting surface is also a smooth plane to ensure that the positioning, pressing and fixing will not be damaged. When two smooth surfaces are fitted 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 adhesive 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 grasp them, it can only grasp 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 micro products. Summary of the Invention

[0004] The present 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:

[0006] A small product assembly welding jig includes a carrier body, a cover plate installed on the front end of the upper surface of the carrier body, the cover plate integrally formed with a plurality of evenly distributed placement portions, a bottom shell product is placed on the placement portions, 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 portions, a plurality of equally spaced positioning mechanisms 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 equally spaced pressing mechanisms for pressing the Z-shaped material are installed on the rear end of the upper surface of the carrier body;

[0007] The upper end surface of the carrier body is provided with a plurality of longitudinal slide grooves distributed at equal intervals, and a transverse slide groove is provided on the front side of each of the longitudinal slide grooves, and the positioning mechanism includes a moving part slidably installed in the longitudinal slide groove forward and backward, a longitudinal positioning part for pushing the bottom shell product is installed on the moving part, and a transverse moving part is slidably installed in the transverse slide groove left and right, and a transverse positioning part for pushing the product is installed on the transverse moving part, and the moving part is in sliding contact with the transverse moving part, and the longitudinal positioning part and the transverse positioning part are slidably placed in the longitudinal hole and the transverse hole respectively, and parts of the longitudinal positioning part and the transverse positioning part pass through the longitudinal hole and the transverse hole and are above the cover plate, thereby facilitating the positioning of the bottom shell product;

[0008] The front side of the upper surface of the moving member is provided with a mounting notch, a portion of the lower portion of the transverse member is cut away to form a clamping notch, and a moving notch is provided above the transverse member. The transverse member is slidably mounted in the mounting notch of the moving member through the clamping notch and the moving notch.

[0009] The left half of the rear end of the installation notch is cut away to form a pushing inclined surface, and the left side of the moving notch is cut away to form a moving inclined surface. The moving inclined surface is in sliding contact with the pushing inclined surface. When the moving part moves forward, the pushing inclined surface will push the moving inclined surface and cause the moving inclined surface to 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, a plurality of equally spaced abutment seats are fixed to the rear side of the upper surface of the cover plate, and a stopper is provided on the right side of the placement portion, the stopper being used to contact the right end of the bottom shell product, and the rear end of the bottom shell product contacting 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;

[0011] The cover plate is provided with a plurality of transverse holes distributed at equal intervals, and a longitudinal hole is provided on the right front side of each of the transverse holes.

[0012] 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 longitudinal groove, and the longitudinal grooves are connected to the transverse grooves, the transverse holes are located directly above the transverse grooves, and the longitudinal holes are located directly above the front ends of the longitudinal grooves.

[0013] Preferably, two longitudinal springs are installed at the front end of the movable member, and the longitudinal springs abut against the inner wall of the right end of the longitudinal slide. A transverse spring is provided at the left end of the transverse member, and the left end of the transverse spring abuts against the inner wall of the left end of the transverse slide. The longitudinal spring makes the movable member tend to move backward, while the transverse spring makes the transverse member tend to move rightward.

[0014] Preferably, the placing portion is formed with mounting holes running through the upper and lower parts, and the jacking 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, and a lifting opening is provided at the bottom end of the lifting cavity, and a lifting column is provided in the lifting cavity for sliding up and down, and the bottom end of the lifting column passes through the lifting opening and is located below the fixing sleeve, and a lifting plate is sleeved on the lifting column, and four rectangularly distributed lifting rods are vertically fixed on the lifting plate.

[0015] Preferably, the top screw of the fixing sleeve is installed with an upper cover, the upper surface of the upper cover is flush with the upper surface of the placement part, and four lifting openings are opened on the upper cover, and the four lifting rods are slid into the four lifting openings respectively, and a downward pressure spring is sleeved on the lifting column, and the upper and lower ends of the downward pressure spring are respectively in contact with the upper cover and the lifting plate. When the lifting plate contacts the bottom end of the lifting cavity, the top of the lifting rod is flush with the upper surface of the upper cover. When the bottom shell product is placed above the placement part 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 be deformed when pressed down.

[0016] 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 the bottom shell product from colliding with the longitudinal positioning member and the transverse positioning member during jacking and causing damage.

[0017] Preferably, the clamping mechanism includes a fixed shaft seat fixed above the carrier body, a rotating block is rotatably mounted on the fixed shaft seat via an axle pin, and a hanging ring is provided on the front end of the left surface of the rotating block and the fixed shaft seat, and a tension spring is hung between the two hanging rings, so that the tension spring makes the front end of the rotating block tend to deflect downward;

[0018] A beryllium copper pressing block is fixed on the front side of the rotating block. A bird's beak is provided on the beryllium copper pressing block. The surface of the bird's beak is covered with silicone and has a hardness of Shore hardness of 50A.

[0019] Beneficial effects of the present invention:

[0020] 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 it can be fixed, facilitating the accurate placement of the Z-shaped material on the bottom shell product. In conjunction with the provided clamping mechanism, it can clamp and fix the Z-shaped material and the bottom shell product, preventing shaking during the welding process and improving the welding accuracy.

[0021] 2. The longitudinal and transverse positioning parts in the positioning mechanism are positioned by self-rebound of longitudinal and transverse springs. The bird's 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 of the entire positioning and clamping mechanisms will not exceed the design range, thus avoiding damage to the bottom shell product and Z-shaped parts and improving safety.

[0022] 3. By setting 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 part. When the positioning mechanism releases the positioning of the bottom shell product, the lifting mechanism can push the bottom shell product upward to prevent the bottom shell product from being adsorbed on the placement part, making it easier to remove it quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a main cross-sectional view of a micro-product assembly welding jig proposed by the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of a structure in which no cover plate is provided;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the vehicle body;

[0026] Figure 4 for Figure 1 Schematic diagram of the structure of the middle cover;

[0027] Figure 5 for Figure 1 A in the middle is an enlarged schematic diagram;

[0028] Figure 6 for Figure 2 Structural diagram of the positioning mechanism;

[0029] Figure 7 It is a structural diagram of the moving parts and longitudinal positioning parts in the positioning mechanism;

[0030] Figure 8 This is an exploded view of the transverse moving part and the lifting mechanism in the positioning mechanism;

[0031] Figure 9 for Figure 8 Bottom view of the middle lifting mechanism;

[0032] Figure 10 for Figure 5 Assembly diagram of the product.

[0033] Reference numerals 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 portion; 3, positioning mechanism; 31, longitudinal positioning member; 32, transverse positioning member; 33, moving member; 331, mounting notch; 332, pushing inclined plane; 34, transverse moving member; 341, moving notch; 342, moving inclined plane; 343, engaging notch; 344, lifting inclined plane; 345, Translation slot; 35. Longitudinal spring; 36. Transverse spring; 4. Lifting mechanism; 41. Fixed sleeve; 411. Lifting chamber; 412. Lifting port; 42. Upper cover; 421. Lifting port; 43. Lifting plate; 44. Lifting column; 441. Lifting slope; 45. Lifting rod; 46. Downward pressure 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 material. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0035] Reference Figure 1 - Figure 10 A small product assembly welding jig includes a carrier body 1, a cover plate 2 is installed on the front end of the upper surface of the carrier body 1, and 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, and a lifting mechanism 4 for lifting the bottom shell product 6 is embedded in the placement portion 24. A plurality of positioning mechanisms 3 with equal spacing and used to position the bottom shell product 6 are installed on the carrier body 1, and the lower end of the lifting mechanism 4 is connected to the positioning mechanism 3. A plurality of pressing mechanisms 5 with equal spacing and used to press the Z-shaped material 61 are installed on the rear end of the upper surface of the carrier body 1;

[0036] The upper end surface of the carrier body 1 is provided with a plurality of longitudinal slide grooves 11 distributed at equal intervals, and a transverse slide groove 12 is provided on the front side of each longitudinal slide groove 11. The positioning mechanism 3 includes a moving member 33 slidably installed in the longitudinal slide groove 11 in front, and a longitudinal positioning member 31 for pushing the bottom shell product 6 is installed on the moving member 33. A transverse member 34 is slidably installed in the transverse slide groove 12 in the left and right directions, and a transverse positioning member 32 for pushing the product is installed on the transverse member 34, and the moving member 33 is in sliding contact with the transverse 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.

[0037] A mounting notch 331 is provided on the front side of the upper surface of the moving part 33, a clamping notch 343 is formed by cutting away the portion below the transverse moving part 34, a moving notch 341 is provided above the transverse moving part 34, and the transverse moving part 34 is slidably installed in the mounting notch 331 of the moving part 33 through the clamping notch 343 and the moving notch 341, a pushing slope 332 is formed by cutting away the portion on the left half of the rear end of the mounting notch 331, and a moving slope 342 is formed by cutting away the portion on the left side of the moving notch 341, and the moving slope 342 is in sliding contact with the pushing slope 332.

[0038] Reference Figure 4 、 Figure 5 , a plurality of equally spaced abutment seats 21 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;

[0039] The cover plate 2 is provided with a plurality of equally spaced transverse holes 23 , and each transverse hole 23 has a longitudinal hole 22 on the right front side. The transverse hole 23 is located to the left of the placement portion 24 , and the longitudinal hole 22 is located in front of the placement portion 24 .

[0040] 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.

[0041] Reference Figure 2 - Figure 8The front end of the moving part 33 is equipped with two longitudinal springs 35, which abut against the inner wall of the right end of the longitudinal slide 11, and the left end of the transverse spring 36 is provided with a transverse spring 36. The left end of the transverse spring 36 abuts against the inner wall of the left end of the transverse slide 12. The longitudinal spring 35 makes the moving part 33 tend to move backward, while the transverse spring 36 makes the transverse part 34 tend to move right. When the moving part 33 moves backward and the transverse part 34 moves right, 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 stop blocks on the abutment seat 21 and the placement part 24, thereby completing the positioning of the bottom shell product 6, facilitating the precise placement of the Z-shaped material 61 on the bottom shell product 6 and improving the welding accuracy.

[0042] When the moving member 33 moves forward, the pushing inclined surface 332 will push the moving inclined surface 342, causing the moving inclined surface 342 to move to the left. At this time, the transverse moving member 34 will move to the left, and the longitudinal positioning member 31 and the transverse positioning member 32 installed on the moving member 33 and the transverse moving member 34 will move away from the placement portion 24, making it easier for the bottom shell product 6 to 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.

[0043] When the moving part 33 is not affected by any force other than the longitudinal spring 35 and the transverse moving part 34, 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. 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, 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 part 24, thereby completing the positioning of the bottom shell product 6.

[0044] Reference Figure 6 - Figure 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 by screws in the mounting hole. The upper surface of the fixing sleeve 41 is recessed downward to form a lifting cavity 411. 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. The bottom end of the lifting column 44 passes through the lifting port 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.

[0045] The top screw of the fixing sleeve 41 is fixed with an upper cover 42. The upper surface of the upper cover 42 is flush with the upper surface of the placement portion 24. Four lifting openings 421 are opened on the upper cover 42. Four lifting rods 45 are slidably placed in the four lifting openings 421 respectively. A downward pressure spring 46 is sleeved on the lifting column 44. 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 opening 41, 2 so as to contact the surface of the transverse member 34 below. There is a certain distance between the top of the lifting column 44 and the lower surface of the upper cover 42, which enables the lifting column 44 to move up and down without contacting the upper cover 42 and causing interference.

[0046] 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 part 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.

[0047] The upper end surface of the transverse 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 slot 345. The bottom end of the translation slot 345 is designed to be horizontal. The bottom end of the lifting column 44 is cut away to form a lifting inclined surface 441. The lifting inclined surface 441 is in sliding contact with the lifting inclined surface 344.

[0048] 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. It can avoid 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.

[0049] 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 front ends of the left surfaces of the rotating block 52 and 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;

[0050] A beryllium copper pressure 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 pressure block 53. The surface of the bird's beak 54 is covered with silicone and has a Shore hardness of 50A. 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. 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.

[0051] Working Principle: In actual use, a pneumatic cylinder is installed at the rear end of the carrier body 1. When the cylinder is in the retracted state, the cylinder's push rod contacts the rear end of the moving member 33. An electric cylinder is installed above the carrier body 1 through a bracket. When the push rod of the electric cylinder extends, the rear end of the rotating block 52 is pressed down, and its front end is lifted. A robot arm and a visual device are installed on the front side of the carrier body 1.

[0052] 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. 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 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, leaving a larger space. At this time, the top end of the lifting rod 45 is also above the placement portion 24.

[0053] Afterwards, the manipulator cooperates with the visual device to place the bottom shell product 6 on the placement part 24. The bottom shell product 6 will be overlapped on the four lifting rods 45. Then the push rod of the cylinder will retract. 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. 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 is retracted 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;

[0054] The robot then 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 causes the front end of the rotating block 52 to deflect around the shaft pin as the axis. 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 product 6. Then, laser welding is performed under the guidance of the visual device.

[0055] 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.

[0056] 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 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, thereby lifting the entire bottom shell product 6, making 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.

[0057] By providing a 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. In conjunction with the provided pressing mechanism 5, it can press and fix the Z-shaped material 61 and the bottom shell product 6, preventing shaking during the welding process and improving the welding accuracy.

[0058] The longitudinal positioning member 31 and the transverse positioning member 32 in the positioning mechanism 3 are both positioned by self-rebounding by the longitudinal spring 35 and the transverse spring 36. The bird's beak 54 in the pressing mechanism 5 can also be pressed by the tension of the tension spring 55. When the cylinder or electric cylinder fails, the force of the entire positioning mechanism 3 and the pressing 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.

[0059] 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, preventing the bottom shell product 6 from being adsorbed on the placement portion 24, making it easier for it to be quickly removed.

[0060] In the description of the present invention, it should 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" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0062] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding jig for assembling small products, characterized in that: The carrier body (1) comprises a cover plate (2) installed at 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 distributed 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 evenly distributed pressing mechanisms (5) for pressing the Z-shaped material (61) are installed at the rear end of the upper surface of the carrier body (1); The upper end surface of the carrier body (1) is provided with a plurality of longitudinal slide grooves (11) distributed at equal intervals, and a transverse slide groove (12) is provided on the front side of each longitudinal slide groove (11), and the positioning mechanism (3) includes 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) is mounted on the moving member (33), a transverse member (34) is slidably mounted in the transverse slide groove (12) in a left and right manner, and a transverse positioning member (32) for pushing the product is mounted on the transverse member (34), and the moving member (33) is in sliding contact with the transverse member (34), and 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; The front side of the upper surface of the movable member (33) is provided with a mounting notch (331), a portion of the lower portion of the transverse member (34) is cut away to form a snap-fitting notch (343), and a moving notch (341) is provided above the transverse member (34). The transverse member (34) is slidably mounted in the mounting notch (331) of the movable member (33) through the snap-fitting notch (343) and the moving notch (341), a pushing inclined surface (332) is formed by cutting away a portion of the left half of the rear end of the mounting notch (331), and a moving inclined surface (342) is formed by cutting away a portion of the moving notch (341) facing the left side, and the moving inclined surface (342) is in sliding contact with the pushing inclined surface (332).

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), and a stopper is provided on the right side of the placement portion (24), the stopper being used to contact the right end of the bottom shell product (6), and the rear end of the bottom shell product (6) is in contact with the abutment seat (21); The cover plate (2) is provided with a plurality of equally spaced transverse holes (23), 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 longitudinal chute (11) is connected to the transverse chute (12), the transverse hole (23) is located directly above the transverse chute (12), and the longitudinal hole (22) is located directly above the front end of the longitudinal chute (11).

4. A micro product assembly welding jig according to claim 3, characterized in that: 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 (11). A transverse spring (36) is provided at the left end of the transverse member (34), and the left end of the transverse spring (36) abuts against the inner wall of the left end of the transverse slide (12).

5. The micro product assembly welding jig according to claim 1, characterized in that: The placement portion (24) is penetrated by a mounting hole at the top and bottom, and the lifting mechanism (4) includes a fixing sleeve (41) fixed in the mounting hole by a screw, 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 provided in the lifting cavity (411) to slide 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).

6. A micro product assembly welding jig according to claim 5, characterized in that: The top 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), and four lifting openings (421) are opened on the upper cover (42). The four lifting rods (45) are respectively slidably placed in the four lifting openings (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).

7. The micro product assembly welding jig according to claim 5, 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 internal portion 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).

8. The micro product assembly welding jig according to claim 1, characterized in that: The clamping mechanism (5) includes a fixed shaft seat (51) fixed above the carrier body (1), a rotating block (52) is rotatably mounted on the fixed shaft seat (51) via an axle pin, and a hanging ring is provided at the front end of the left surface of the rotating block (52) and the fixed shaft seat (51), and a tension spring (55) is 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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