Rotary supporting frame structure for robot welding and using method of rotary supporting frame structure

Abstract

The invention provides a rotary supporting frame structure for robot welding and a using method of the rotary supporting frame structure, and relates to the technical field of welding robots. A swing large arm is arranged at the top of the rotating seat; when the positioning block makes contact with the supporting frame body, the limiting sliding rod and the supporting frame body are matched with each other, the stopping process of the rotating base is buffered through the elastic effect of the compression spring a, the swing amplitude of the welding gun on the upper portion can be effectively reduced, and therefore the accuracy of the welding position is guaranteed; the problems that when an existing rotary supporting frame structure for robot welding is used, in the rotation stopping process of a rotary supporting frame, due to the inertia effect, a welding gun above the rotary supporting frame is prone to violently swinging, the accuracy of the welding position is reduced, and welding wires cannot be conveyed easily when being conveyed continuously are solved. And the welding wire is easy to deviate in the rotary adjusting process of the supporting frame, so that the welding reliability of the welding wire is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of welding robots, and in particular to a rotating support frame structure for robot welding and a use method thereof. Background Art

[0002] Welding robots are widely used in various industrial fields that require welding, such as automobile manufacturing, shipbuilding, mechanical processing, etc. The rotating support frame of the welding robot is an important component of the welding robot system. It is responsible for supporting and driving the welding tool or workpiece to rotate, so as to achieve uniform heating and optimize the weld quality during the welding process.

[0003] When the existing rotating support frame structure for robot welding is in use, the welding gun above the rotating support frame is prone to violent swinging due to inertia during the process of stopping rotation, which reduces the accuracy of the welding position. Moreover, when the welding wire is continuously conveyed, the rotation adjustment process of the support frame can easily cause the welding wire to shift, affecting the reliability of the welding. In addition, the pulling force during the welding wire conveying process is too large, which may cause the welding wire to break in severe cases, thereby reducing the welding efficiency. Summary of the invention

[0004] In view of this, the present invention provides a rotating support frame structure for robot welding. When the positioning block contacts the support frame body, the limiting slide rod and the support frame body cooperate with each other, and the elastic action of the compression spring a is used to buffer the stopping process of the rotating seat, which can effectively reduce the swing amplitude of the upper welding gun, thereby ensuring the accuracy of the welding position.

[0005] The present invention provides a rotating support frame structure for robot welding and the purpose and efficacy of the use method thereof, which specifically comprises: a fixed base, a rotating base is provided on the top of the fixed base; a swinging arm is provided on the top of the rotating base; a fixed small arm is provided on the top of the swinging arm; a limiting frame is provided on the top of the fixed small arm, and the bottom of the limiting frame is fixedly connected to the fixed small arm through a bracket; a sliding seat is provided on the limiting frame; an adjusting seat is provided on the sliding seat; two clamping plates are provided on the adjusting seat, and the two clamping plates are distributed in a symmetrical manner; a servo motor is provided at the bottom of the limiting frame; a connecting arm is provided at the front end of the fixed small arm; an adjustment control is provided at the front of the connecting arm; a welding gun is provided at the front end of the adjustment control;

[0006] A bearing sleeve is provided at the center of the top of the fixed base, a positioning sleeve is provided above the fixed base, and the positioning sleeve is fixedly connected to the fixed base through two brackets. The positioning sleeve is a rectangular through-cavity structure, and a through-slot is provided on the front wall of the positioning sleeve.

[0007] In at least some embodiments, a cylinder is fixedly installed on the front of the positioning sleeve, a positioning block is slidably installed in the positioning sleeve, a connecting block is provided on the front side of the positioning block, and the connecting block is slidably connected to the positioning sleeve through a through groove, and the connecting block is connected to the end of the telescopic rod of the cylinder.

[0008] In at least some embodiments, a rotating spindle is provided at the bottom of the rotating seat, and the rotating spindle is rotatably connected to the fixed base through a bearing sleeve, and a mounting seat is provided on one side of the outer circumference of the rotating spindle, and a limiting sliding rod is slidably inserted on the mounting seat.

[0009] In at least some embodiments, a connecting head is provided at the end of the limiting slide rod, and an oval-shaped through hole is opened on the connecting head, a compression spring a is mounted on the limiting slide rod, and the compression spring a is supported between the connecting head and the mounting seat, a support frame body is rotatably installed on one side of the outer circumference of the rotating main shaft, and the support frame body is rotatably connected to the oval-shaped through hole of the connecting head through a pin shaft, and the support frame body corresponds to the position of the positioning block.

[0010] In at least some embodiments, two guide grooves are provided on the inner side of the limit frame, and the two guide grooves are distributed in a symmetrical manner, a fixed base plate is provided under the limit frame, and the fixed base plate is fixedly installed between the two brackets of the limit frame, and the servo motor is fixedly installed at the bottom of the fixed base plate, and two limit blocks are provided on the top of the limit frame, and the two limit blocks are distributed in a symmetrical manner.

[0011] In at least some embodiments, guide sliders are provided on the left and right sides of the sliding seat, and the sliding seat is slidably connected to the guide groove of the limit frame through the guide sliders. The sliding seat is a rectangular frame structure, and two limit rods are slidably inserted in the frame of the sliding seat. The two limit rods are symmetrically distributed, and a support plate is provided between the ends of the two limit rods. A compression spring b is mounted on the limit rod, and a limit groove is provided in the middle position of the bottom wall of the sliding seat.

[0012] In at least some embodiments, a limiting slider is provided at the bottom of the adjustment seat, and a connecting shaft is provided at the bottom of the limiting slider, two mounting grooves are provided at the top of the adjustment seat, and the two mounting grooves are symmetrically distributed, a limiting round rod is provided in the mounting groove, and a compression spring c is mounted on the limiting round rod.

[0013] In at least some embodiments, two mounting blocks are provided at the bottom of the two splints, and the mounting blocks are arranged in the mounting grooves, and the limiting round rod slides through the mounting blocks, and the compression spring c is supported between the left and right mounting blocks, and fixed blocks are provided on the relatively outer sides of the two splints, and the fixed blocks match the limiting blocks.

[0014] In at least some embodiments, the servo motor is provided with a rotating shaft, and the rotating shaft is rotatably connected to the fixed base plate through a bearing, and a rotating frame is provided on the rotating shaft, and a transmission rod is rotatably installed on the rotating frame through a pin shaft, and the transmission rod is rotatably connected to the connecting shaft at the bottom of the limiting slider.

[0015] The present invention discloses a method for using a rotating support frame structure for robot welding, comprising the following steps:

[0016] 1. First, the cylinder provides power to push the positioning block to slide along the positioning sleeve frame, so that the positioning block contacts the support frame;

[0017] 2. The limit slide rod and the support frame cooperate with each other, and the elastic effect of the compression spring a is used to buffer the stopping process of the rotating seat;

[0018] 3. The servo motor provides power to drive the rotating frame to rotate. Through the transmission rod and the connecting shaft of the limit slider, the adjustment seat can drive the two clamping plates to slide back and forth intermittently along the sliding seat;

[0019] 4. The welding wire is positioned through two clamps and the continuous pushing process of the welding wire is realized;

[0020] 5. The sliding seat can slide along the guide groove of the limiting frame, and the support plate is in contact with the adjustment seat. The elastic effect of the compression spring b is used to provide buffering during the adjustment process of the adjustment seat.

[0021] The present invention provides a rotating support frame structure for robot welding, which has the following beneficial effects:

[0022] According to various embodiments of the present invention, the rotating seat is rotated and adjusted by using the rotating main shaft as the axis, and the cylinder provides power to push the positioning block to slide along the positioning sleeve. When the positioning block contacts the support frame, the limiting slide rod and the support frame cooperate with each other, and the elastic action of the compression spring a is used to buffer the stopping process of the rotating seat, which can effectively reduce the swing amplitude of the upper welding gun, thereby ensuring the accuracy of the welding position.

[0023] In addition, in the present invention, the servo motor provides power to drive the rotating frame to rotate, and the transmission rod and the connecting shaft of the limit slider cooperate to transmit the transmission, so that the adjustment seat can drive the two clamps to slide back and forth intermittently along the sliding seat. The two clamps are used to position the welding wire and realize the continuous pushing process of the welding wire. It can also prevent the welding wire from being offset during the rotation adjustment process of the support frame, thereby ensuring the reliability of welding.

[0024] In addition, a sliding seat is provided in the present invention. When the above-mentioned two clamps convey the welding wire, the sliding seat can slide along the guide groove of the limit frame. At the same time, the support plate contacts the adjustment seat and utilizes the elastic effect of the compression spring b to provide buffering during the adjustment process of the adjustment seat, thereby avoiding excessive pulling force and breakage of the welding wire during conveying, thereby ensuring that the welding wire is conveyed more smoothly. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0026] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0027] In the attached picture:

[0028] Figure 1 It is a schematic diagram of the overall axial viewing angle structure of an embodiment of the present invention.

[0029] Figure 2 It is a schematic diagram of the fixed base and the rotating spindle structure of an embodiment of the present invention.

[0030] Figure 3 It is a schematic structural diagram of the positioning block and the positioning sleeve in the exploded state according to an embodiment of the present invention.

[0031] Figure 4 It is a schematic structural diagram of the rotating main shaft, the limiting sliding rod and the supporting frame in the exploded state of an embodiment of the present invention.

[0032] Figure 5 It is a schematic diagram of the fixed arm, the limiting frame, the sliding seat and the clamping plate structure of an embodiment of the present invention.

[0033] Figure 6 It is a schematic diagram of the limit frame, sliding seat, adjustment seat and clamping plate structure of an embodiment of the present invention.

[0034] Figure 7 The embodiment of the present invention Figure 6 Schematic diagram of the derived rotating perspective structure.

[0035] Figure 8 It is a schematic structural diagram of the adjustment seat and the clamping plate in the exploded state according to an embodiment of the present invention.

[0036] Fig. 9 It is a schematic structural diagram of the adjustment seat, clamping plate, servo motor and sliding seat in the exploded state according to an embodiment of the present invention.

[0037] Reference numerals list

[0038] 1. Fixed base; 101. Bearing sleeve; 102. Positioning sleeve; 103. Through slot; 104. Cylinder; 105. Positioning block; 106. Connecting block; 2. Rotating seat; 201. Rotating spindle; 202. Mounting seat; 203. Limiting slide bar; 204. Connecting head; 205. Compression spring a; 206. Support frame; 3. Swinging big arm; 4. Fixed small arm; 5. Limiting frame; 501. Guide slide slot; 502. Fixed bottom plate; 503. Limiting block; 6. Sliding seat; 601, guide slider; 602, limit rod; 603, support plate; 604, compression spring b; 605, limit slide groove; 7, adjustment seat; 701, limit slider; 702, mounting groove; 703, limit round rod; 704, compression spring c; 8, clamping plate; 801, mounting block; 802, fixing block; 9, servo motor; 901, rotating shaft; 902, rotating frame; 903, transmission rod; 10, connecting arm; 11, adjustment control unit; 12, welding gun. DETAILED DESCRIPTION

[0039] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0040] Example 1: Please refer to Figures 1 to 9 As shown:

[0041] The present invention provides a rotating support frame structure for robot welding and a use method thereof, comprising: a fixed base 1, a rotating base 2 is provided on the top of the fixed base 1; a swinging arm 3 is provided on the top of the rotating base 2; a fixed small arm 4 is provided on the top of the swinging arm 3; a limiting frame 5 is provided on the top of the fixed small arm 4, and the bottom of the limiting frame 5 is fixedly connected to the fixed small arm 4 through a bracket; a sliding seat 6 is provided on the limiting frame 5; an adjusting seat 7 is provided on the sliding seat 6; two clamping plates 8 are provided on the adjusting seat 7, and the two clamping plates 8 are distributed in a symmetrical manner; a servo motor 9 is provided at the bottom of the limiting frame 5; a connecting arm 10 is provided at the front end of the fixed small arm 4; an adjusting control 11 is provided at the front of the connecting arm 10; a welding gun 12 is provided at the front end of the adjusting control 11;

[0042] A bearing sleeve 101 is provided at the top center of the fixed base 1, a positioning sleeve 102 is provided above the fixed base 1, and the positioning sleeve 102 is fixedly connected to the fixed base 1 through two brackets. The positioning sleeve 102 is a rectangular through-cavity structure, and a through-slot 103 is opened on the front wall of the positioning sleeve 102.

[0043] In the present disclosure, Figures 2 to 4As shown, a cylinder 104 is fixedly installed at the front of the positioning sleeve 102, a positioning block 105 is slidably installed in the positioning sleeve 102, a connecting block 106 is provided at the front side of the positioning block 105, and the connecting block 106 is slidably connected to the positioning sleeve 102 through the through slot 103, and the connecting block 106 is connected to the end of the telescopic rod of the cylinder 104;

[0044] A rotating spindle 201 is provided at the bottom of the rotating seat 2, and the rotating spindle 201 is rotatably connected to the fixed base 1 through the bearing sleeve 101. A mounting seat 202 is provided on one side of the outer circumference of the rotating spindle 201, and a limited sliding rod 203 is slidably inserted on the mounting seat 202;

[0045] A connecting head 204 is provided at the end of the limiting slide bar 203, and an oval through hole is opened on the connecting head 204, a compression spring a205 is mounted on the limiting slide bar 203, and the compression spring a205 is supported between the connecting head 204 and the mounting seat 202, a support frame 206 is rotatably installed on one side of the outer circumference of the rotating main shaft 201, and the support frame 206 is rotatably connected to the oval through hole of the connecting head 204 through a pin shaft, and the position of the support frame 206 corresponds to the positioning block 105, wherein the rotating seat 2 is rotated and adjusted by the rotating main shaft 201 as the axis, and the cylinder 104 provides power to push the positioning block 105 to slide along the positioning sleeve 102, when the positioning block 105 contacts the support frame 206, the limiting slide bar 203 and the support frame 206 cooperate with each other, and the elastic action of the compression spring a205 is used to buffer the stopping process of the rotating seat 2, which can effectively reduce the swing amplitude of the upper welding gun 12.

[0046] In the present disclosure, Figures 6 to 9 As shown, two guide slots 501 are provided inside the limit frame 5, and the two guide slots 501 are symmetrically distributed, a fixed bottom plate 502 is provided below the limit frame 5, and the fixed bottom plate 502 is fixedly installed between the two brackets of the limit frame 5, and the servo motor 9 is fixedly installed at the bottom of the fixed bottom plate 502, and two limit blocks 503 are provided on the top of the limit frame 5, and the two limit blocks 503 are symmetrically distributed;

[0047] A limiting slider 701 is provided at the bottom of the adjusting seat 7, and a connecting shaft is provided at the bottom of the limiting slider 701. Two mounting grooves 702 are provided at the top of the adjusting seat 7, and the two mounting grooves 702 are symmetrically distributed. A limiting round rod 703 is provided in the mounting groove 702, and a compression spring c704 is sleeved on the limiting round rod 703.

[0048] Two mounting blocks 801 are provided at the bottom of the two clamping plates 8, and the mounting blocks 801 are arranged in the mounting grooves 702, and the limiting round rod 703 slides through the mounting blocks 801, and the compression spring c704 is supported between the left and right mounting blocks 801, and the two clamping plates 8 are provided with fixed blocks 802 on the relatively outer sides, and the fixed blocks 802 match the limiting stopper 503;

[0049] A rotating shaft 901 is provided on the servo motor 9, and the rotating shaft 901 is rotatably connected to the fixed base plate 502 through a bearing. A rotating frame 902 is provided on the rotating shaft 901. A transmission rod 903 is rotatably installed on the rotating frame 902 through a pin shaft, and the transmission rod 903 is rotatably connected to the connecting shaft at the bottom of the limiting slider 701. In the present invention, the servo motor 9 provides power to drive the rotating frame 902 to rotate, and the transmission rod 903 cooperates with the connecting shaft of the limiting slider 701 to transmit, so that the adjustment seat 7 can drive the two clamping plates 8 to slide back and forth intermittently along the sliding seat 6, and the two clamping plates 8 are used to position the welding wire, and the continuous pushing process of the welding wire is realized, and the welding wire can be prevented from being offset during the rotation adjustment process of the support frame.

[0050] Embodiment 2, based on embodiment 1, as Fig. 9 As shown, guide sliders 601 are provided on the left and right sides of the sliding seat 6, and the sliding seat 6 is slidably connected with the guide slide groove 501 of the limit frame 5 through the guide sliders 601. The sliding seat 6 is a rectangular frame structure, and two limit rods 602 are slidably inserted in the frame of the sliding seat 6. The two limit rods 602 are symmetrically distributed, and a support plate 603 is provided between the ends of the two limit rods 602. A compression spring b604 is mounted on the limit rod 602, and a limit slide groove 605 is provided in the middle position of the bottom wall of the sliding seat 6. The present invention is provided with a sliding seat 6. When the above-mentioned two clamping plates 8 convey the welding wire, the sliding seat 6 can slide along the guide slide groove 501 of the limit frame 5, and the support plate 603 contacts the adjusting seat 7 at the same time, and utilizes the elastic effect of the compression spring b604 to buffer during the adjustment process of the adjusting seat 7 to avoid excessive pulling force during the welding wire conveying and causing breakage.

[0051] The specific usage and function of this embodiment: In the present invention, the rotating seat 2 is rotated and adjusted by rotating the main shaft 201 as the axis, and the cylinder 104 provides power to push the positioning block 105 to slide along the positioning sleeve frame 102. When the positioning block 105 contacts the support frame body 206, the limit slide bar 203 and the support frame body 206 cooperate with each other, and the elastic effect of the compression spring a205 is used to buffer the stopping process of the rotating seat 2, which can effectively reduce the swing amplitude of the upper welding gun 12; the servo motor 9 provides power to drive the rotating frame 902 to rotate, and the transmission rod 903 is connected with the limit slide block 701. The shaft cooperates with the transmission, so that the adjustment seat 7 can drive the two clamping plates 8 to slide back and forth intermittently along the sliding seat 6. The two clamping plates 8 are used to position the welding wire and realize the continuous pushing process of the welding wire, and the welding wire can be prevented from being offset during the rotation adjustment process of the support frame; when the above-mentioned two clamping plates 8 convey the welding wire, the sliding seat 6 can slide along the guide slide groove 501 of the limit frame 5, and the support plate 603 is in contact with the adjustment seat 7, and the elastic effect of the compression spring b604 can be used to buffer the adjustment process of the adjustment seat 7, so as to avoid excessive pulling force and breakage of the welding wire during the conveying process.

[0052] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0053] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A rotating support structure for robot welding, characterized in that: include: A fixed base, wherein a rotating base is provided on the top of the fixed base; a swinging arm is provided on the top of the rotating base; a fixed arm is provided on the top of the swinging arm; a limiting frame is provided on the top of the fixed arm, and the bottom of the limiting frame is fixedly connected to the fixed arm through a bracket; a sliding seat is provided on the limiting frame; an adjusting seat is provided on the sliding seat; two clamping plates are provided on the adjusting seat, and the two clamping plates are distributed in a symmetrical manner; a servo motor is provided at the bottom of the limiting frame; a connecting arm is provided at the front end of the fixed arm; an adjustment control is provided at the front of the connecting arm; a welding gun is provided at the front end of the adjustment control; A bearing sleeve is provided at the center of the top of the fixed base, a positioning sleeve is provided above the fixed base, and the positioning sleeve is fixedly connected to the fixed base through two brackets. The positioning sleeve is a rectangular through-cavity structure, and a through-slot is provided on the front wall of the positioning sleeve.

2. A rotating support structure for robot welding as claimed in claim 1, characterized in that: A cylinder is fixedly installed at the front of the positioning sleeve, a positioning block is slidably installed in the positioning sleeve, a connecting block is provided at the front side of the positioning block, and the connecting block is slidably connected to the positioning sleeve through a through groove, and the connecting block is connected to the end of the telescopic rod of the cylinder.

3. A rotating support structure for robot welding as claimed in claim 1, characterized in that: A rotating main shaft is provided at the bottom of the rotating seat, and the rotating main shaft is rotatably connected to the fixed base through a bearing sleeve. A mounting seat is provided on one side of the outer peripheral surface of the rotating main shaft, and a limiting sliding rod is slidably inserted on the mounting seat.

4. A rotating support structure for robot welding as claimed in claim 3, characterized in that: A connecting head is provided at the end of the limiting slide rod, and an oval through hole is opened on the connecting head. A compression spring a is mounted on the limiting slide rod, and the compression spring a is supported between the connecting head and the mounting seat. A support frame is rotatably installed on one side of the outer circumference of the rotating main shaft, and the support frame is rotatably connected to the oval through hole of the connecting head through a pin shaft, and the support frame corresponds to the position of the positioning block.

5. A rotating support structure for robot welding as claimed in claim 1, characterized in that: Two guide grooves are arranged on the inner side of the limit frame, and the two guide grooves are distributed in a symmetrical manner. A fixed base plate is arranged under the limit frame, and the fixed base plate is fixedly installed between the two brackets of the limit frame, and the servo motor is fixedly installed at the bottom of the fixed base plate. Two limit blocks are arranged on the top of the limit frame, and the two limit blocks are distributed in a symmetrical manner.

6. A rotating support structure for robot welding as claimed in claim 1, characterized in that: The sliding seat is provided with guide sliders on the left and right sides, and the sliding seat is slidably connected with the guide slide groove of the limit frame through the guide sliders. The sliding seat is a rectangular frame structure, and two limit rods are slidably inserted in the frame of the sliding seat. The two limit rods are symmetrically distributed, and a support plate is provided between the ends of the two limit rods. A compression spring b is mounted on the limit rod, and a limit slide groove is provided in the middle position of the bottom wall of the sliding seat.

7. A rotating support structure for robot welding as claimed in claim 1, characterized in that: A limiting slider is provided at the bottom of the adjustment seat, and a connecting shaft is provided at the bottom of the limiting slider. Two mounting grooves are provided at the top of the adjustment seat, and the two mounting grooves are distributed in a symmetrical manner. A limiting round rod is provided in the mounting groove, and a compression spring c is sleeved on the limiting round rod.

8. A rotating support structure for robot welding as claimed in claim 1, characterized in that: Two mounting blocks are provided at the bottom of the two clamps, and the mounting blocks are arranged in the mounting grooves, and the limiting round rod slides through the mounting blocks, and the compression spring c is supported between the left and right mounting blocks, and the two clamps are provided with fixed blocks on the outer sides thereof, and the fixed blocks match the limiting blocks.

9. A rotating support structure for robot welding as claimed in claim 1, characterized in that: The servo motor is provided with a rotating shaft, and the rotating shaft is rotatably connected to the fixed base plate through a bearing, and a rotating frame is provided on the rotating shaft, and a transmission rod is rotatably installed on the rotating frame through a pin shaft, and the transmission rod is rotatably connected to the connecting shaft at the bottom of the limiting slider.

10. The method for using the rotating support structure for robot welding as claimed in claim 9, characterized in that: The following steps are involved:

1. First, the cylinder provides power to push the positioning block to slide along the positioning sleeve frame, so that the positioning block contacts the support frame; 2. The limit slide rod and the support frame cooperate with each other, and the elastic effect of the compression spring a is used to buffer the stopping process of the rotating seat; 3. The servo motor provides power to drive the rotating frame to rotate. Through the transmission rod and the connecting shaft of the limit slider, the adjustment seat can drive the two clamping plates to slide back and forth intermittently along the sliding seat; 4. The welding wire is positioned through two clamps, and the welding wire is continuously pushed; 5. The sliding seat can slide along the guide groove of the limiting frame, and the support plate is in contact with the adjustment seat. The elastic effect of the compression spring b is used to provide buffering during the adjustment process of the adjustment seat.

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