Positioning device for machined part of stud welding machine

Abstract

The utility model relates to the technical field of workpiece positioning, and discloses a positioning device for a workpiece of a stud welding machine, which comprises a base, and a fixed clamping mechanism is arranged at the top of the base. A machined part is placed on the top of a containing plate, then a motor is started to enable a worm to rotate, the worm rotates to drive a worm wheel to rotate, so that a rotating shaft rotates, the rotating shaft drives a gear to rotate, the gear drives two racks to move in the opposite direction, and therefore two fixing blocks and two clamping blocks are driven to move in the opposite direction; a workpiece on the top of a placing plate is clamped and fixed, so that the accurate position of a stud on the workpiece can be ensured when the workpiece is welded, a getter pump is started when the workpiece is welded, and smoke generated when the workpiece is welded is sucked into a box body through work of the getter pump, so that the welding efficiency of the workpiece is improved. And then the smoke is filtered by a filter plate in the box body, so that harmful substances in the smoke are filtered, and the filtered smoke is discharged through an air outlet hole.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece positioning, in particular to a positioning device for workpieces of a stud welding machine. Background Art

[0002] Welding refers to a processing method that combines welds by heating or pressurizing, or both. Depending on the state of the metal during the welding process, welding methods can be divided into three categories: fusion welding, pressure welding, and brazing. Among them, arc welding is the most commonly used in fusion welding. A welding machine is one of the welding devices. A welding machine refers to an electrical appliance that provides a power supply with certain characteristics for welding. Welding is widely used in various industrial fields, such as aerospace, ships, automobiles, containers, etc., because of its flexibility, simplicity, convenience, firmness, reliability, and even the same strength as the parent material after welding.

[0003] According to announcement number CN 220347428 U, a stud welding machine positioning tool includes a support plate, the upper surface of the support plate is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a first screw rod, the outer surface of the first screw rod is threadedly connected to a nut block, the outer surface of the nut block is fixedly connected to a mounting piece, the upper surface of the mounting piece is fixedly connected to a stud placement area, the upper surface of the support plate is fixedly connected to a mounting slot, the upper surface of the mounting slot is provided with a second motor, and the output end of the second motor is fixedly connected to a second screw rod.

[0004] The device features a stud placement area that secures the stud's position and engages a first screw rod, which is perpendicular to a second screw rod. This reduces angle differences during welding and increases the success rate of welding. Furthermore, the welding gun is located on the second screw rod, allowing for flexible adjustment of its height. Manual welding is also unnecessary, reducing the burden on workers. However, the device does not position the workpiece during welding, so the stud cannot be accurately placed on the workpiece during welding. Utility Model Content

[0005] The purpose of the present utility model is to provide a positioning device for a workpiece of a stud welding machine, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a positioning device for a workpiece of a stud welding machine, comprising a base, a support leg fixedly connected to the bottom of the base, a fixed clamping mechanism provided on the top of the base, and an air suction mechanism provided on the top of the base near the back;

[0007] The fixed clamping mechanism includes a fixed frame, a slide groove is opened on the front side of the fixed frame near the top, a sliding member is symmetrically connected to the slide groove for sliding sliding, a rack is fixedly connected to the back side of the sliding member, a fixed block is fixedly connected to the top of the rack near the left end, a clamping block is fixedly connected to the top of the fixed block, the front side of the fixed frame is fixedly connected to the motor, the output end of the motor is fixedly connected to the worm, the bottom of the fixed frame is rotatably connected to the rotating shaft, the surface of the rotating shaft is fixedly connected to the worm gear near the bottom end, and the surface of the rotating shaft is fixedly connected to the gear near the top, the top of the base is symmetrically fixedly connected to the fixing rod, and the top of the fixing rod is fixedly connected to the placement plate.

[0008] Preferably, the rear end of the worm is rotatably connected to the inner back side of the fixing frame near the bottom, so that the rotation of the worm is more stable, and the worm is engaged with the worm wheel.

[0009] Preferably, the rack is meshed with a gear.

[0010] Preferably, there are two groups of the sliding grooves, sliding members, racks, fixing blocks and clamping blocks, which are arranged in a circular array on the front and rear sides of the fixing frame.

[0011] Preferably, the top end of the rotating shaft is rotatably connected to the bottom end of the placement plate, so that the rotation of the rotating shaft is more stable.

[0012] Preferably, the air suction mechanism includes a box body, the box body is fixedly connected to the top of the base near the back, the top of the box body near the back is fixedly connected to an air suction pump, the output end of the air suction pump is fixedly connected to an air inlet pipe, the other end of the air inlet pipe is connected to an air suction hood, the output end of the air suction pump is fixedly connected to an air outlet pipe, the inner wall of the box body is fixedly connected to a filter plate near the top, and air outlet holes are symmetrically opened on both sides of the box body.

[0013] Preferably, the bottom of the air hood is fixedly connected to the top of the box body near the front, the top of the box body is provided with a hole matching the air outlet pipe, and the surface of the air outlet pipe passes through and is fixedly connected to the hole.

[0014] Compared with the prior art, the present invention provides a positioning device for a workpiece of a stud welding machine, which has the following beneficial effects:

[0015] The workpiece positioning device of the stud welding machine places the workpiece on the top of the placement plate through a fixed clamping mechanism, and then starts the motor to rotate the worm. The rotation of the worm drives the worm wheel to rotate, thereby rotating the rotating shaft, and the rotating shaft drives the gear to rotate. The gear drives the two racks to move toward each other, thereby driving the two fixed blocks and the two clamping blocks to move toward each other, clamping and fixing the workpiece on the top of the placement plate, so that the workpiece can ensure the accurate position of the stud on the workpiece during welding.

[0016] The positioning device of the workpiece of the stud welding machine uses the suction mechanism to start the suction pump when welding the workpiece. The suction pump sucks the fume generated by the workpiece during welding into the suction hood, and then sucks it into the box through the air inlet and outlet pipes. The fume is then filtered by the filter plate in the box to filter out harmful substances in the fume, and the filtered fume is discharged through the outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the structural fixing and clamping mechanism of the utility model;

[0020] Figure 3 This is a front sectional perspective schematic diagram of the structural fixing frame of the utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the fixing rod and placement plate of the utility model structure;

[0022] Figure 5 This is a three-dimensional schematic diagram of the suction mechanism of the utility model structure;

[0023] Figure 6 This is a schematic sectional perspective view of the structural box of the utility model.

[0024] In the figure: 1. Base; 2. Support leg; 3. Fixed clamping mechanism; 31. Fixed frame; 32. Slide groove; 33. Sliding member; 34. Rack; 35. Fixed block; 36. Clamping block; 37. Motor; 38. Worm; 39. Rotating shaft; 311. Worm gear; 312. Gear; 313. Fixed rod; 314. Placement plate; 4. Suction mechanism; 41. Box; 42. Suction pump; 43. Inlet pipe; 44. Suction hood; 45. Exhaust pipe; 46. Filter plate; 47. Exhaust hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] The utility model provides the following technical solutions:

[0028] For example 1, please refer to Figure 1-4 The utility model provides a technical solution: a positioning device for a workpiece of a stud welding machine, comprising a base 1, a supporting leg 2 fixedly connected to the bottom of the base 1, a fixed clamping mechanism 3 provided on the top of the base 1, and an air suction mechanism 4 provided on the top of the base 1 near the back;

[0029] The fixed clamping mechanism 3 includes a fixed frame 31, a slide groove 32 is provided on the front side of the fixed frame 31 near the top, a sliding member 33 is symmetrically connected to the sliding groove 32 for sliding sliding, a rack 34 is fixedly connected to the back side of the sliding member 33, a fixed block 35 is fixedly connected to the top of the rack 34 near the left end, a clamping block 36 is fixedly connected to the top of the fixed block 35, a motor 37 is fixedly connected to the front side of the fixed frame 31, a worm 38 is fixedly connected to the output end of the motor 37, a rotating shaft 39 is rotatably connected to the bottom of the fixed frame 31, a worm gear 311 is fixedly connected to the surface of the rotating shaft 39 near the bottom end, a gear 312 is fixedly connected to the surface of the rotating shaft 39 near the top, a fixing rod 313 is symmetrically fixedly connected to the top of the base 1, and a placement plate 314 is fixedly connected to the top of the fixing rod 313.

[0030] The rear end of the worm 38 is rotatably connected to the inner back side of the fixing frame 31 near the bottom, so that the rotation of the worm 38 is more stable. The worm 38 is engaged with the worm wheel 311 .

[0031] The rack 34 meshes with the gear 312 .

[0032] There are two groups of sliding grooves 32 , sliding members 33 , racks 34 , fixing blocks 35 and clamping blocks 36 , which are arranged in a circular array at the front and rear sides of the fixing frame 31 .

[0033] The top end of the rotating shaft 39 is rotatably connected to the bottom end of the placement plate 314 , so that the rotation of the rotating shaft 39 is more stable.

[0034] For example 2, please refer to Figure 5-6 , and on the basis of embodiment 1, an air suction mechanism 4 is further obtained.

[0035] The suction mechanism 4 includes a box body 41, which is fixedly connected to the top of the base 1 near the back, and an air suction pump 42 is fixedly connected to the top of the box body 41 near the back, the output end of the air suction pump 42 is fixedly connected to an air inlet pipe 43, the other end of the air inlet pipe 43 is connected to an air suction hood 44, the output end of the air suction pump 42 is fixedly connected to an air outlet pipe 45, a filter plate 46 is fixedly connected to the inner wall of the box body 41 near the top, and air outlet holes 47 are symmetrically opened on both sides of the box body 41.

[0036] The bottom of the air hood 44 is fixedly connected to the top of the box body 41 near the front. A hole matching the air outlet pipe 45 is opened on the top of the box body 41, and the air outlet pipe 45 passes through the surface and is fixedly connected to the hole.

[0037] In actual operation, when this device is used, the workpiece is placed on the top of the placement plate 314, and then the motor 37 is started to rotate the worm 38. The rotation of the worm 38 drives the worm wheel 311 to rotate, thereby rotating the rotating shaft 39, and the rotating shaft 39 drives the gear 312 to rotate. The gear 312 drives the two racks 34 to move toward each other, thereby driving the two fixing blocks 35 and the two clamping blocks 36 to move toward each other, clamping and fixing the workpiece on the top of the placement plate 314, so that the workpiece can be accurately positioned on the workpiece when welding.

[0038] When welding the workpiece, the suction pump 42 is started. The smoke generated by the welding of the workpiece is sucked into the suction hood 44 through the operation of the suction pump 42, and then sucked into the box 41 through the air inlet pipe 43 and the air outlet pipe 45. The smoke is then filtered by the filter plate 46 in the box 41 to filter out harmful substances in the smoke, and the filtered smoke is discharged through the outlet hole 47.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A positioning device for a workpiece of a stud welding machine, comprising a base (1), characterized in that: The bottom of the base (1) is fixedly connected to a support leg (2), the top of the base (1) is provided with a fixed clamping mechanism (3), and the top of the base (1) is provided with an air suction mechanism (4) near the back; The fixed clamping mechanism (3) comprises a fixed frame (31), a sliding groove (32) is provided on the front of the fixed frame (31) near the top, a sliding member (33) is symmetrically slidably connected in the sliding groove (32), a rack (34) is fixedly connected to the back of the sliding member (33), a fixed block (35) is fixedly connected to the top of the rack (34) near the left end, a clamping block (36) is fixedly connected to the top of the fixed block (35), a motor (37) is fixedly connected to the front of the fixed frame (31), a worm (38) is fixedly connected to the output end of the motor (37), a rotating shaft (39) is rotatably connected to the bottom of the fixed frame (31), a worm gear (311) is fixedly connected to the surface of the rotating shaft (39) near the bottom end, and a gear (312) is fixedly connected to the surface of the rotating shaft (39) near the top end, a fixing rod (313) is fixedly connected to the top of the base (1) in a front-to-back symmetrical manner, and a placement plate (314) is fixedly connected to the top of the fixing rod (313).

2. A positioning device for a workpiece of a stud welding machine according to claim 1, characterized in that: The rear end of the worm (38) is rotatably connected to the inner back side of the fixing frame (31) near the bottom, and the worm (38) is meshed with the worm wheel (311).

3. The positioning device for a workpiece of a stud welding machine according to claim 1, characterized in that: The rack (34) is meshed with the gear (312).

4. The positioning device for a workpiece of a stud welding machine according to claim 1, characterized in that: There are two groups of the sliding groove (32), the sliding member (33), the rack (34), the fixing block (35) and the clamping block (36), which are arranged in a circular array on the front and rear sides of the fixing frame (31).

5. The positioning device for a workpiece of a stud welding machine according to claim 1, characterized in that: The top end of the rotating shaft (39) is rotatably connected to the bottom end of the placement plate (314).

6. The positioning device for a workpiece of a stud welding machine according to claim 1, characterized in that: The air suction mechanism (4) includes a box body (41), the box body (41) is fixedly connected to the top of the base (1) near the back, the top of the box body (41) near the back is fixedly connected to an air suction pump (42), the output end of the air suction pump (42) is fixedly connected to an air inlet pipe (43), the other end of the air inlet pipe (43) is connected to an air suction cover (44), the output end of the air suction pump (42) is fixedly connected to an air outlet pipe (45), the inner wall of the box body (41) near the top is fixedly connected to a filter plate (46), and air outlet holes (47) are symmetrically opened on both sides of the box body (41).

7. A positioning device for a workpiece of a stud welding machine according to claim 6, characterized in that: The bottom of the air hood (44) is fixedly connected to the top of the box (41) near the front. The top of the box (41) is provided with a hole matching the air outlet pipe (45), and the surface of the air outlet pipe (45) passes through and is fixedly connected to the hole.

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