A gantry welding machine tool for sheet metal parts

Abstract

The present invention discloses a gantry welding machine for sheet metal parts, and specifically relates to the field of welding machine tools. The welding machine is used for welding drill bits, and the drill bits include a conical head and a plurality of blades with a crescent-shaped structure. The plurality of blades are matched end to end, and after the plurality of blades are matched, they are spirally sleeved on the outside of the conical head, and include: a conical head fixing mechanism for fixing the posture of the conical head, the conical head fixing mechanism includes a pressure plate that can move vertically, and a fixed support plate, and the conical head is fixed between the pressure plate and the support plate. The present invention places a plurality of crescent-shaped blades on a main structure, and then welds along the spiral trajectory of the spiral blades composed of the plurality of crescent-shaped blades, so that the spiral blades can be prevented from warping or skewing due to thermal effects at the welding point between the spiral blades and the main structure, causing the spiral blades to deviate from the position where they are subsequently matched with the main structure, thereby avoiding the problem of a high defective rate of products.

Description

Technical Field

[0001] The present invention relates to the technical field of welding machine tools, and more particularly to a gantry type welding machine tool for sheet metal parts. Background Art

[0002] Sheet metal usually refers to parts or products made by shearing, bending, stamping, welding and other processes on thin metal.

[0003] At present, the drill bits used for drilling outdoors are mainly composed of two parts: a conical main structure and a spiral blade. Since the spiral blade cannot be integrally formed with the conical main structure, welding processing is usually adopted when processing this type of drill bit. Through a coding program, the welding gun is made to travel a spiral trajectory that is compatible with the blade, and the spiral blade is welded and fixed to the main structure of the drill bit to form the process.

[0004] However, the current technical difficulty of integrally forming spiral blades is that even if they are processed as a whole, after the spiral blades and the tapered main structure of the drill bit are well matched, as the welding stroke advances, the weld between the spiral blades and the main structure will cause the spiral blades to warp or skew due to the thermal effect, causing the spiral blades to deviate from the subsequent position for matching with the main structure, resulting in a high rate of defective products. Therefore, it is necessary to design a processing equipment suitable for the welding of spiral blades and tapered main structures to solve the above problems. Summary of the invention

[0005] The present invention provides a gantry welding machine for sheet metal parts, and aims to solve the following problem: the current technical difficulty in integrally forming spiral blades means that even if they are integrally processed, after the spiral blades are matched with the conical main structure of the drill bit, as the welding stroke advances, the welding point between the spiral blades and the main structure will cause the spiral blades to warp or skew due to the thermal effect, causing the spiral blades to deviate from the position where they will subsequently match with the main structure, resulting in a high rate of defective products.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gantry welding machine for sheet metal parts, used for welding drill bits, the drill bit includes a conical head and a plurality of blades with a crescent-shaped structure, the plurality of blades are matched end to end, and after the plurality of blades are matched, they are spirally sleeved on the outside of the conical head, including: a conical head fixing mechanism, used to fix the posture of the conical head, the conical head fixing mechanism includes a pressure plate that can move vertically, and a fixed support plate, the conical head is fixed between the pressure plate and the support plate; a blade fixing mechanism, used to fix the plurality of blades in a posture of matching end to end, the blade fixing mechanism includes a plurality of fixing plates, the plurality of fixing plates can move upward in a spiral trajectory, and the plurality of fixing plates are in contact with the bottom of the corresponding blades; a welding assembly, the welding assembly includes a welding gun, the welding gun moves along a preset welding trajectory, and the plurality of blades are welded and fixed on the conical head, the preset welding trajectory is to move along the contact surface trajectory of the plurality of blades and the conical head; the welding assembly also includes a reciprocating motion component, the reciprocating motion component is used to drive the welding gun to reciprocate along a transverse trajectory to weld between two adjacent blades.

[0007] In a preferred embodiment, the welding assembly is fixedly arranged on the sleeve ring, and the welding assembly also includes a side seat 2, on which a power component 6 is fixedly arranged, and the output end of the power component 6 is fixedly connected to a threaded shaft 2, and a slider 2 is slidably arranged in the side seat 2, and the slider 2 is threadably matched with the threaded shaft 2.

[0008] In a preferred embodiment, the reciprocating motion component includes a power component seven, the power component seven is fixedly arranged on the slider two, a fixed block is installed at the output end of the power component seven, and the welding gun is fixedly arranged on the fixed block.

[0009] In a preferred embodiment, the welding machine also includes a rotating component 2, which includes a fixedly installed power component 5, the output end of which is fixedly connected to a gear, a ring is provided on the outer rotating sleeve of the support plate, a gear ring is provided on the outer fixed sleeve of the ring, and the gear is meshed with the gear ring.

[0010] In a preferred embodiment, a support plate is fixedly provided on the outer side of the ring, a power component eight is fixedly installed on the support plate, an output end of the power component eight is fixedly connected to a support block, a limit rod is fixedly provided on the support plate, the support block is slidably sleeved on the outer side of the limit rod, and the side seat two is fixedly provided on the support block.

[0011] In a preferred embodiment, the conical head fixing mechanism also includes a vertical drive assembly, which includes a connecting seat, a sliding seat is slidably arranged on the connecting seat, a power component and a slide rail are fixedly arranged on the connecting seat, a rotating assembly is arranged on the sliding seat, and a pressure plate is installed on the rotating assembly.

[0012] In a preferred embodiment, rotating component 1 includes a fixed seat, which is fixedly arranged on one side of the sliding seat, and a power component 2 is fixedly arranged on the fixed seat. The output end of the power component 2 is fixedly connected to the vertical shaft, the pressure plate is rotatably arranged at the end of the vertical shaft, a positioning groove is opened on the support plate, the end of the conical head is inserted into the positioning groove, and the blade fixing mechanism is fixedly arranged on the vertical shaft.

[0013] In a preferred embodiment, the blade fixing mechanism also includes a side seat 1, on which a connecting plate is fixedly provided, the connecting plate is fixedly connected to the vertical axis, on which a power component 3 is fixedly provided, the output end of the power component 3 is fixedly connected to a threaded shaft 1, the threaded shaft 1 is rotatably provided in the side seat 1, a slider 1 is slidably provided in the side seat 1, the slider 1 is threadably matched with the threaded shaft 1, a power component 4 is fixedly installed on the slider 1, the output end of the power component 4 is fixedly connected to the side plate, and a plurality of fixing plates are fixedly provided on the side plate.

[0014] In a preferred embodiment, the welding machine tool also includes a guide assembly, which includes a guide block, which is fixedly arranged on one side of the slider two, and a guide hole is opened on the guide block, and the guide hole is arranged in an arc shape. A circular shaft is rotatably arranged on the fixed block, and the circular shaft is rollingly arranged in the guide hole. A limiting groove is opened on one side of the fixed block, and a limiting block is slidably arranged in the limiting groove. The output end of the power component seven is fixedly connected to the limiting block, and a limiting shaft is fixedly arranged in the limiting groove, and the limiting block is slidably sleeved on the outside of the limiting shaft.

[0015] In a preferred embodiment, the welding machine further comprises a workbench and a gantry, the gantry is mounted on the workbench, the connecting seat is fixedly arranged on the gantry, and the supporting plate and the power component 5 are both fixedly mounted on the workbench.

[0016] The beneficial effects of the present invention are:

[0017] The present invention places a plurality of crescent-shaped blades on a main structure and then welds them along the spiral trajectory of the spiral blades formed by the plurality of crescent-shaped blades. This can avoid the spiral blades from warping or skewing due to thermal effects at the welding points between the spiral blades and the main structure, causing the spiral blades to deviate from the position where they subsequently cooperate with the main structure, thereby avoiding the problem of a high defective rate of products.

[0018] The present invention stably fixes and limits a plurality of crescent-shaped blades on the main structure to prevent deformation of the blades caused by thermal expansion and contraction during welding, thereby avoiding the problem that the gap between two adjacent blades becomes larger due to blade deformation, thereby affecting the welding effect between the blades. In addition, the spiral upward movement of the blade fixing mechanism can not only stably fix and limit the blades, but also avoid the problem that the blade fixing mechanism blocks the movement of the welding gun.

[0019] The present invention enables the welding gun to reciprocate to weld between two adjacent blades, so that the welding gun and the joint between the two blades can always maintain the same welding distance, or always weld along the trajectory of the weld, thereby ensuring a good welding effect and avoiding the problem of affecting the welding effect due to the different distances between the welding gun and the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the drill bit of the present invention.

[0022] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0023] Figure 4 It is a structural schematic diagram of the blade fixing mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the motion trajectory of the blade fixing mechanism of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the rotating component 2 of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the welding assembly of the present invention.

[0027] Figure 8 It is a schematic diagram of the motion trajectory of the welding assembly of the present invention.

[0028] Fig. 9 It is a schematic structural diagram of the guide assembly of the present invention.

[0029] The accompanying drawings are marked as follows: 1, drill bit; 101, conical head; 102, blade; 2, workbench; 3, gantry; 4, vertical drive assembly; 401, connecting seat; 402, power component one; 403, slide seat; 404, slide rail; 5, rotating assembly one; 501, fixed seat; 502, power component two; 503, vertical shaft; 504, pressure plate; 6, support plate; 601, positioning groove; 7, blade fixing mechanism; 701, side seat one; 702, power component three; 703, threaded shaft one; 704, slider one; 705, power component four; 706, side plate; 707, fixing plate ;8. Rotating component two;801. Power component five;802. Gear;803. Ring;804. Gear ring;9. Welding assembly;901. Welding gun;902. Side seat two;903. Power component six;904. Threaded shaft two;905. Slider two;906. Power component seven;907. Fixed block;908. Support plate;909. Power component eight;910. Support block;911. Limit rod;10. Guide assembly;1001. Guide block;1002. Guide hole;1003. Round shaft;1004. Limit block;1005. Limit groove;1006. Limit shaft. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] Refer to the instruction manual Figures 1 to 8A gantry welding machine for sheet metal parts is used for welding a drill bit 1, the drill bit 1 includes a conical head 101 and a plurality of crescent-shaped blades 102, the plurality of blades 102 are matched head to tail, and after the plurality of blades 102 are matched, they are spirally sleeved on the outside of the conical head 101, including: a conical head fixing mechanism for fixing the posture of the conical head 101, the conical head fixing mechanism includes a vertically movable pressure plate 504, and a fixed support plate 6, the conical head 101 is fixed between the pressure plate 504 and the support plate 6; a blade fixing mechanism 7 for fixing the plurality of blades 102 in a posture of matching head to tail, The blade fixing mechanism 7 includes a plurality of fixing plates 707, which can move upward in a spiral trajectory, and the plurality of fixing plates 707 are in contact with the bottom of the corresponding blades 102; a welding assembly 9, wherein the welding assembly 9 includes a welding gun 901, which moves along a preset welding trajectory to weld and fix the plurality of blades 102 on the conical head 101, and the preset welding trajectory is to move along a contact surface trajectory where the plurality of blades 102 and the conical head 101 are in contact; the welding assembly 9 also includes a reciprocating motion component, which is used to drive the welding gun 901 to reciprocate along a lateral trajectory to weld between two adjacent blades 102.

[0032] It should be noted that the welding gun 901 can be a laser welding gun or a welding gun with automatic solder feeding, the fixing plate 707 is crescent-shaped, and the fixing plate 707 fits snugly against the bottom of the blade 102, and the preset welding trajectory can be a spiral upward trajectory.

[0033] The implementation scenario is specifically as follows: before welding, a plurality of blades 102 are first sleeved on the outside of the conical head 101, and then the end of the conical head 101 is placed on the support plate 6, and then the pressure plate 504 moves downward to press the conical head 101 to fix the conical head 101, and then a plurality of fixing plates 707 are made to fit with the bottom of the corresponding blades 102 to fix the blades 102, and ensure that two adjacent blades 102 are spliced ​​together to fix a plurality of blades 102 at the same time;

[0034] During welding, the welding gun 901 is moved upward along a spiral trajectory to weld the blade 102 and the conical head 101. When the welding gun 901 moves to the joint of two adjacent blades 102, the welding gun 901 reciprocates to weld the two adjacent blades 102. When the welding between the lowermost blade 102 and the conical head 101 and between the lowermost two blades 102 is completed, the plurality of fixing plates 707 and the welding gun 901 are synchronously moved upward along a spiral trajectory. When the welding gun 901 moves to the second lowermost blade 102, the fixing plates 707 are moved upward along a spiral trajectory. When the joint between the first blade 102 and the third blade 102 below is reached, the multiple fixing plates 707 stop moving, and the welding gun 901 reciprocates to weld the two blades 102. After welding, the multiple fixing plates 707 and the welding gun 901 continue to move synchronously to perform the welding operation, and so on and so forth to achieve welding and fixation between the multiple blades 102 and the conical head 101. The spiral upward movement of the multiple fixing plates 707 can not only fix the blades 102, but also avoid the problem of the blade fixing mechanism 7 blocking the movement of the welding gun 901.

[0035] Furthermore, if Figure 7 As shown, the welding assembly 9 is fixedly arranged on the ring 803, and the welding assembly 9 also includes a side seat 902, on which a power component 903 is fixedly arranged, and the output end of the power component 903 is fixedly connected to a threaded shaft 904, and a slider 905 is slidably arranged in the side seat 902, and the slider 905 is threadably matched with the threaded shaft 904.

[0036] It should be noted that the power component six 903 is a motor, the power component seven 906 is a cylinder, and the side seat two 902 is tilted. When the collar 803 rotates, it can drive the welding gun 901 to make a revolution motion. At the same time, the motor drives the threaded shaft two 904 to rotate. Through the threaded cooperation between the threaded shaft two 904 and the slider two 905, the welding gun 901 can be driven to move obliquely upward, so that the welding gun 901 can move upward in a spiral trajectory and weld and fix the blade 102 and the conical head 101.

[0037] Furthermore, the reciprocating motion component includes a power component seven 906 , which is fixedly disposed on the slider two 905 , and a fixed block 907 is installed at the output end of the power component seven 906 , on which the welding gun 901 is fixedly disposed.

[0038] It should be noted that when the welding gun 901 moves to the joint between two adjacent blades 102 , the cylinder drives the welding gun 901 to reciprocate, thereby achieving welding and fixing between the two adjacent blades 102 .

[0039] Furthermore, if Figure 5As shown, the welding machine also includes a rotating component 2 8, which includes a fixedly installed power component 5 801, and the output end of the power component 5 801 is fixedly connected to a gear 802, and the outer rotating sleeve of the support plate 6 is provided with a ring 803, and the outer fixed sleeve of the ring 803 is provided with a gear ring 804, and the gear 802 is meshed with the gear ring 804.

[0040] It should be noted that the power component 5 801 is a motor, which drives the gear 802 to rotate, and drives the ring 803 to rotate through the meshing of the gear 802 and the gear ring 804.

[0041] Furthermore, if Figure 7 As shown, a support plate 908 is fixedly provided on the outer side of the ring 803, a power component eight 909 is fixedly installed on the support plate 908, an output end of the power component eight 909 is fixedly connected to a support block 910, a limit rod 911 is fixedly provided on the support plate 908, the support block 910 is slidably sleeved on the outer side of the limit rod 911, and the side seat two 902 is fixedly provided on the support block 910.

[0042] It should be noted that the power component 909 is a cylinder. Before welding, the cylinder pushes the support block 910 to move, so that the welding gun 901 can move away from the conical head 101, and then the conical head 101 and the blade 102 can be fixed. During welding, the cylinder drives the support block 910 to move toward the conical head 101, so that the welding head of the welding gun 901 can be close to the joint between the conical head 101 and the blade 102, which is convenient for moving and adjusting the position of the welding gun 901.

[0043] Furthermore, if Figure 1 As shown, the conical head fixing mechanism also includes a vertical drive component 4, which includes a connecting seat 401, a slide seat 403 is slidably arranged on the connecting seat 401, a power component 402 and a slide rail 404 are fixedly arranged on the connecting seat 401, a rotating component 5 is arranged on the slide seat 403, and a pressure plate 504 is installed on the rotating component 5.

[0044] It should be noted that the power component 1 402 is a linear motor, which drives the slide 403 to move vertically to adjust the position, so that the vertical movement of the slide 403 can drive the pressure plate 504 to move vertically to fix the conical head 101.

[0045] Furthermore, if Figure 3As shown, the rotating component 1 5 includes a fixed seat 501, which is fixedly arranged on one side of the slide seat 403, and a power component 2 502 is fixedly arranged on the fixed seat 501. The output end of the power component 2 502 is fixedly connected to the vertical shaft 503, and the pressure plate 504 is rotatably arranged at the end of the vertical shaft 503. A positioning groove 601 is opened on the support plate 6, and the end of the conical head 101 is inserted into the positioning groove 601. The blade fixing mechanism 7 is fixedly arranged on the vertical shaft 503.

[0046] It should be noted that the power component 502 is a motor, which drives the vertical shaft 503 to rotate. When the vertical shaft 503 rotates, since the vertical shaft 503 and the pressure plate 504 are rotatably connected, the rotation of the vertical shaft 503 will not affect the pressure plate 504, thereby not affecting the stable fixation of the conical head 101. At the same time, when the vertical shaft 503 rotates, it can drive the blade fixing mechanism 7 to perform orbital motion.

[0047] The above technical solution adopts the method of arranging the integrated spiral blade into a segmented type (specifically, a plurality of crescent-shaped blades 102 are spliced ​​together to form a conical spiral blade), and the joints between the plurality of crescent-shaped blades 102 are fixed by welding, which can facilitate the processing of the sheet metal parts of the blades 102 and solve the technical problem that the integrated spiral blades are prone to deflection when directly welded.

[0048] However, when the segmented blades 102 are welded and fixed to the conical head 101, if the multiple crescent-shaped blades 102 are welded and fixed first, and then the spiral blade formed by welding the multiple crescent-shaped blades 102 is welded to the conical head 101, the spiral blade formed by welding will be deformed due to the thermal expansion and contraction of the blades 102 during welding, resulting in a mismatch between the spiral blade and the conical head 101 when welding the spiral blade and the conical head 101, affecting the welding quality. Therefore, in order to ensure the welding quality, it is necessary to first place the crescent-shaped blade 102 on the conical head 101, and then use the welding gun 901 to weld along the spiral trajectory of the spiral blade composed of the multiple crescent-shaped blades 102, and during the welding process, the connection between the two adjacent crescent-shaped blades 102 needs to be welded and fixed, so that during the welding process along the spiral trajectory, it is necessary to control the lateral movement of the welding gun 901 to weld between the two adjacent crescent-shaped blades 102.

[0049] In order to ensure the integrity and strength of the weld, continuous and uninterrupted welding is usually required to ensure the consistency of the weld joint and prevent breakpoints or defects. Therefore, when welding between two adjacent crescent-shaped blades 102, the welding gun 901 needs to reciprocate to perform two weldings between the two adjacent crescent-shaped blades 102. During welding, a certain welding margin will be retained between the two crescent-shaped blades 102, and the two weldings brought about by the reciprocating motion of the welding gun 901 can just fill the welding margin retained between the two crescent-shaped blades 102. However, in the process of welding along the spiral trajectory, although the welding is performed separately, the welding margin between the two crescent-shaped blades 102 is not completely filled. The segmented blade 102 welding method can reduce the displacement of the blade 102 by a certain amount. However, the thermal expansion and contraction of the crescent-shaped blade 102 during welding of the segmented blade 102 will still cause a slight deformation of the crescent-shaped blade 102, thereby causing the gap between the two adjacent crescent-shaped blades 102 to be larger than the welding margins reserved between the multiple segmented blades 102, which may easily lead to the failure of two weldings to ensure that the welding margins between the two crescent-shaped blades 102 are fully filled, thereby affecting the welding strength. To this end, in one embodiment of the present invention, a specific implementation method is also provided to solve the above-mentioned problem:

[0050] Furthermore, if Figure 4 As shown, the blade fixing mechanism 7 also includes a side seat 701, on which a connecting plate is fixedly arranged, which is fixedly connected to the vertical shaft 503, on which a power component 3 702 is fixedly arranged, and the output end of the power component 3 702 is fixedly connected to a threaded shaft 1 703, which is rotatably arranged in the side seat 701, and a slider 1 704 is slidably arranged in the side seat 701, which is threadedly matched with the threaded shaft 1 703, and a power component 4 705 is fixedly installed on the slider 1 704, and the output end of the power component 4 705 is fixedly connected to a side plate 706, and a plurality of fixing plates 707 are fixedly arranged on the side plate 706.

[0051] It should be noted that the power component three 702 is a motor, the power component four 705 is a cylinder, and the side seat one 701 is tilted. When fixing the multiple blades 102, the cylinder drives the side plate 706 to drive the multiple fixing plates 707 to move, so that the multiple fixing plates 707 move to the bottom of the corresponding blades 102, and then the motor drives the threaded shaft one 703 to rotate, and through the threaded cooperation between the threaded shaft one 703 and the slider one 704, it drives the multiple fixing plates 707 to move obliquely upward, so that the multiple fixing plates 707 are tightly fitted with the bottom of the corresponding blades 102, so that the multiple fixing plates 707 can move obliquely upward to achieve stable fixed positioning of the multiple blades 102, which can avoid thermal expansion and contraction. The deformation of the blades can avoid the problem that the gap between two adjacent blades becomes larger due to the deformation of the blades, thereby affecting the welding effect between the blades. When the blade fixing mechanism 7 is performing orbital motion, multiple fixing plates 707 are performing orbital motion synchronously, and the motor drives the threaded shaft 703 to rotate, so that it can drive multiple fixing plates 707 to move obliquely upward, so that multiple fixing plates 707 can move upward in a spiral trajectory, so that multiple blades 102 can always be stably fixed and limited, so that the blade 102 located below can move upward through the spiral trajectory of the fixing plate 707 after welding and fixation, thereby releasing the fixation of the blade 102 below after welding, and avoiding the fixing plate 707 from affecting the movement of the welding gun 901.

[0052] Since the blades 102 are spirally arranged, the joint between two adjacent blades 102 is arc-shaped, and welding requires that the welding point and the welding gun 901 be kept at the same distance, or the welding gun 901 is required to always move along the track of the weld to achieve a better welding effect. Therefore, in order to ensure the welding effect between the two blades 102, the present embodiment further provides a guide assembly 10, which includes a guide block 1001, which is fixedly arranged on one side of the slider 905, and the guide block 1001 is fixedly arranged on the slider 905. A guide hole 1002 is provided on 001, and the guide hole 1002 is arranged in an arc shape. A circular shaft 1003 is rotatably arranged on the fixed block 907, and the circular shaft 1003 is rollingly arranged in the guide hole 1002. A limiting groove 1005 is provided on one side of the fixed block 907, and a limiting block 1004 is slidably arranged in the limiting groove 1005. The output end of the power component seven 906 is fixedly connected to the limiting block 1004, and a limiting shaft 1006 is fixedly arranged in the limiting groove 1005, and the limiting block 1004 is slidably sleeved on the outer side of the limiting shaft 1006.

[0053] It should be noted that the power component seven 906 is a cylinder, and the arc-shaped setting of the guide hole 1002 matches the joint of two adjacent blades 102. The cylinder drives the welding gun 901 to reciprocate through the limit block 1004 and the fixed block 907. During the reciprocating motion of the welding gun 901, the round shaft 1003 can move in the guide hole 1002, so that the welding gun 901 can move along an arc trajectory under the guidance of the round shaft 1003 and the guide hole 1002, thereby ensuring that during the reciprocating motion of the welding gun 901, the distance between the welding gun 901 and the two blades 102 can always remain the same, or the welding gun 901 can always move along the trajectory of the weld, thereby ensuring a good welding effect.

[0054] Furthermore, if Figure 1 As shown, the welding machine also includes a workbench 2 and a gantry 3. The gantry 3 is installed on the workbench 2, the connecting seat 401 is fixedly arranged on the gantry 3, and the support plate 6 and the power component 5 801 are both fixedly installed on the workbench 2.

[0055] It should be noted that the connection seat 401, the support plate 6, and the power component 5 801 can be easily fixed.

[0056] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A gantry type welding machine for sheet metal parts, used for welding a drill bit (1), the drill bit (1) comprising a conical head (101) and a plurality of crescent-shaped blades (102), the plurality of blades (102) being matched end to end, and after the plurality of blades (102) are matched, they are spirally sleeved on the outer side of the conical head (101), characterized in that: include: A conical head fixing mechanism, used for fixing the posture of the conical head (101), the conical head fixing mechanism comprising a pressure plate (504) that can move vertically, and a fixed support plate (6), the conical head (101) being fixed between the pressure plate (504) and the support plate (6); A blade fixing mechanism (7) is used to fix the plurality of blades (102) in an end-to-end matching posture, the blade fixing mechanism (7) comprising a plurality of fixing plates (707), the plurality of fixing plates (707) being able to move upward in a spiral trajectory, and the plurality of fixing plates (707) being in contact with the bottoms of corresponding blades (102); A welding assembly (9), the welding assembly (9) comprising a welding gun (901), the welding gun (901) moving along a preset welding trajectory to weld and fix the plurality of blades (102) on the conical head (101), wherein the preset welding trajectory is a trajectory moving along a contact surface where the plurality of blades (102) and the conical head (101) fit together; The welding assembly (9) further comprises a reciprocating component, which is used to drive the welding gun (901) to reciprocate along a transverse track to weld between two adjacent blades (102).

2. A gantry type welding machine tool for sheet metal parts according to claim 1, characterized in that: The welding assembly (9) further comprises a second side seat (902), on which a power component (903) is fixedly arranged, an output end of the power component (903) is fixedly connected to a second threaded shaft (904), a second slider (905) is slidably arranged in the second side seat (902), and the second slider (905) is threadably matched with the second threaded shaft (904).

3. A gantry type welding machine tool for sheet metal parts according to claim 2, characterized in that: The reciprocating motion component comprises a power component seven (906), the power component seven (906) is fixedly arranged on the slider two (905), a fixed block (907) is installed at the output end of the power component seven (906), and the welding gun (901) is fixedly arranged on the fixed block (907).

4. The gantry type welding machine tool for sheet metal parts according to claim 1, characterized in that: The welding machine tool further comprises a rotating assembly 2 (8), the rotating assembly 2 (8) comprising a fixedly arranged power component 5 (801), the output end of the power component 5 (801) being fixedly connected to a gear (802), the outer rotating sleeve of the support plate (6) being provided with a collar (803), the welding assembly (9) being fixedly arranged on the collar (803), the outer fixed sleeve of the collar (803) being provided with a gear ring (804), and the gear (802) being meshed with the gear ring (804).

5. A gantry type welding machine tool for sheet metal parts according to claim 4, characterized in that: A support plate (908) is fixedly arranged on the outer side of the collar (803), a power component eight (909) is fixedly mounted on the support plate (908), an output end of the power component eight (909) is fixedly connected to a support block (910), a limit rod (911) is fixedly arranged on the support plate (908), the support block (910) is slidably sleeved on the outer side of the limit rod (911), and the side seat two (902) is fixedly arranged on the support block (910).

6. A gantry type welding machine tool for sheet metal parts according to claim 1, characterized in that: The conical head fixing mechanism further comprises a vertical drive assembly (4), the vertical drive assembly (4) comprising a connecting seat (401), a slide seat (403) being slidably arranged on the connecting seat (401), a power component 1 (402) and a slide rail (404) being fixedly arranged on the connecting seat (401), a rotating assembly 1 (5) being arranged on the slide seat (403), and a pressure plate (504) being mounted on the rotating assembly 1 (5).

7. A gantry type welding machine tool for sheet metal parts according to claim 6, characterized in that: The rotating assembly 1 (5) comprises a fixed seat (501), the fixed seat (501) is fixedly arranged on one side of the sliding seat (403), a power component 2 (502) is fixedly arranged on the fixed seat (501), an output end of the power component 2 (502) is fixedly connected to a vertical shaft (503), a pressure plate (504) is rotatably arranged at the end of the vertical shaft (503), a positioning groove (601) is formed on the supporting plate (6), an end of the conical head (101) is inserted into the positioning groove (601), and a blade fixing mechanism (7) is fixedly arranged on the vertical shaft (503).

8. The gantry type welding machine tool for sheet metal parts according to claim 7, characterized in that: The blade fixing mechanism (7) further comprises a side seat one (701), a connecting plate being fixedly arranged on the side seat one (701), the connecting plate being fixedly connected to the vertical shaft (503), a power component three (702) being fixedly arranged on the side seat one (701), an output end of the power component three (702) being fixedly connected to a threaded shaft one (703), the threaded shaft one (703) being rotatably arranged in the side seat one (701), a slider one (704) being slidably arranged in the side seat one (701), the slider one (704) being threadably matched with the threaded shaft one (703), a power component four (705) being fixedly mounted on the slider one (704), an output end of the power component four (705) being fixedly connected to a side plate (706), and a plurality of fixing plates (707) being fixedly arranged on the side plate (706).

9. The gantry type welding machine tool for sheet metal parts according to claim 3, characterized in that: The welding machine tool further comprises a guide assembly (10), the guide assembly (10) comprising a guide block (1001), the guide block (1001) being fixedly arranged on one side of a second sliding block (905), a guide hole (1002) being provided on the guide block (1001), the guide hole (1002) being arranged in an arc shape, a round shaft (1003) being rotatably arranged on the fixed block (907), the round shaft (1003) being rollingly arranged in the guide hole (1002), a limiting groove (1005) being provided on one side of the fixed block (907), a limiting block (1004) being slidably arranged in the limiting groove (1005), an output end of a seventh power component (906) being fixedly connected to the limiting block (1004), a limiting shaft (1006) being fixedly arranged in the limiting groove (1005), and the limiting block (1004) being slidably sleeved on the outer side of the limiting shaft (1006).

10. A gantry type welding machine tool for sheet metal parts according to claim 4 or 6, characterized in that: The welding machine tool also comprises a workbench (2) and a gantry (3), wherein the gantry (3) is mounted on the workbench (2), the connecting seat (401) is fixedly arranged on the gantry (3), and the supporting plate (6) and the power component five (801) are both fixedly mounted on the workbench (2).

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