Automatic electrode cap grinding equipment

Abstract

The utility model discloses automatic electrode cap grinding equipment which comprises a supporting mechanism, a buffering device and a grinding device. The buffering device is assembled on the supporting mechanism and comprises a first guide rod, a first bearing seat and a first spring, the first guide rod is arranged in the first bearing seat in a penetrating mode, the first spring is arranged on the first guide rod in a sleeving mode, the grinding device comprises a bearing body and a grinding tool, and the grinding tool is assembled on the bearing body. The bearing main body sleeves the first guide rod; the two ends of the first spring abut against the first bearing seats of the bearing body respectively. When the electrode caps to be ground are in contact with the grinding cutter, the grinding device compresses the first spring, and the grinding cutter can be in close fit with the electrode caps through elastic force generated after the first spring is compressed, so that the grinding cutter can grind each electrode cap according to the abrasion degree; therefore, the problem of excessive grinding when the electrode cap with inconsistent abrasion is ground according to the maximum grinding amount is avoided.

Description

Technical Field

[0001] The utility model relates to the field of processing equipment, in particular to an automatic grinding device for an electrode cap. Background Art

[0002] The electrode cap is a type of welding electrode, used for welding of resistance welding equipment, such as single-sided spot welding machine, fixed spot welding machine, hanging spot welding machine, manipulator spot welding machine, robot spot welding machine and seat spot projection welding machine, etc. Because it is put on the electrode connecting rod, it is called an electrode cap. The material is mostly chromium zirconium copper, and there is also dispersed copper. After a certain number of welding, the end face needs to be repaired or replaced due to wear and deformation, and it is a welding consumable part.

[0003] Specifically, the spot welding machine adopts the principle of double-sided double-point overcurrent welding. When working, the two electrodes pressurize the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes, and when the welding current flows from one electrode to the other electrode, an instantaneous heat fusion is formed at the two contact resistance points, and the welding current instantly flows from the other electrode along the two workpieces to this electrode to form a loop without damaging the internal structure of the welded workpiece. The welding principle of resistance welding is to generate a large amount of heat by passing a large current between the electrodes, melt the steel plates, and form a weld core between the steel plates, thereby achieving the purpose of bonding the steel plates. Since the temperature is very high during welding, while causing the steel plates to melt, the electrodes will also soften, so the shape of the electrode cap welding surface will be worn and deformed.

[0004] The traditional solution is to ensure that the qualified shape is achieved by milling off a certain length. A pair of tools in traditional milling equipment can only perform milling of uniform sizes and cannot be adaptively adjusted according to the degree of wear of the electrode cap. A pair of new electrode caps will need to be replaced with new ones due to severe wear after milling about 70 times, which is very costly. Utility Model Content

[0005] The utility model provides an automatic electrode cap grinding device, which aims to solve the problem that the milling device in the prior art cannot perform milling according to the wear degree of the electrode cap.

[0006] In a first aspect, the utility model discloses an automatic electrode cap grinding device for grinding an electrode cap.

[0007] include:

[0008] Support mechanism;

[0009] a buffer device, mounted on the supporting mechanism, the buffer device comprising a first guide rod, a first bearing seat and a first spring, the first guide rod being inserted into the first bearing seat, and the first spring being sleeved on the first guide rod; and

[0010] A grinding device is connected to the buffer device, the grinding device includes a receiving body and a grinding tool, the grinding tool is assembled on the receiving body, the receiving body is provided with a through hole, the receiving body is sleeved on the first guide rod through the through hole and the receiving body can move along the axial direction of the first guide rod; the receiving body includes a first end face close to the electrode cap and a second end face opposite to the first end face, and the two ends of the first spring respectively abut the second end face of the receiving body and the first bearing seat.

[0011] In some embodiments, the electrode cap automatic grinding equipment also includes an adjusting device connected to the buffer device; the adjusting device includes a mounting plate, an adjusting plate assembly and a driving assembly; the mounting plate is fixed on the supporting mechanism, the adjusting plate assembly is arranged above the mounting plate, and the adjusting plate assembly is connected to the buffer device, and the driving assembly drives the adjusting plate assembly to move relative to the mounting plate, thereby driving the buffer device and the grinding device to move relative to the supporting mechanism.

[0012] In some embodiments, the adjusting device also includes a second bearing seat and a second guide rod; the driving assembly includes a first driving cylinder, and the adjusting plate assembly includes a first adjusting plate; the first adjusting plate is arranged above the mounting and fixing plate, the second bearing seat is fixedly connected to the mounting and fixing plate, and the axis of the second bearing seat is perpendicular to the plane where the first adjusting plate is located, and the second guide rod is penetrated in the second bearing seat and passes through the mounting and fixing plate together, so that the second guide rod can move relative to the mounting and fixing plate along the axis direction of the second bearing seat, the first adjusting plate is fixedly connected to the second guide rod, the top end of the first driving cylinder is connected to the first adjusting plate and the axis of the first driving cylinder is parallel to the axis of the second bearing seat, so as to drive the first adjusting plate and the second guide rod to move relative to the mounting and fixing plate along the axis direction of the second bearing seat.

[0013] In some embodiments, the adjusting device also includes a third bearing seat and a third guide rod; the driving assembly includes a second driving cylinder, and the adjusting plate assembly includes a second adjusting plate; the second adjusting plate is arranged above the first adjusting plate, and the third bearing seat is fixedly connected to the end surface of the first adjusting plate close to the second adjusting plate, and the third guide rod is passed through the third bearing seat so that the third guide rod can move relative to the first adjusting plate along the axial direction of the third bearing seat, the second adjusting plate is fixedly connected to the third guide rod, one end of the second driving cylinder is connected to the second adjusting plate and the axis of the second driving cylinder is parallel to the axis of the third bearing seat, so as to drive the second adjusting plate and the third guide rod to move relative to the first adjusting plate along the axial direction of the third bearing seat; the second adjusting plate is connected to the buffer device.

[0014] In some embodiments, the axis of the second bearing seat is perpendicular to the axis of the third bearing seat.

[0015] In some embodiments, the electrode cap automatic grinding device further includes a control device for controlling the first driving cylinder and the second driving cylinder, and the control device is mounted on the supporting mechanism.

[0016] In some embodiments, the adjustment device further includes a distance sensing component that is communicatively connected to the control device; the distance sensing component includes a first distance sensor, a second distance sensor, and a sensing block; the first distance sensor is mounted on the mounting plate, and the sensing block is disposed on the second guide rod, and when the first adjustment plate and the second guide rod move relative to the mounting plate along the axis direction of the second bearing seat, the sensing block moves away from or close to the first distance sensor;

[0017] The second distance sensor is assembled on the first adjustment plate, and the second adjustment plate includes a plate body and a fixed block, wherein the fixed block is connected to the end surface of the plate body close to the first adjustment plate, and the plate body is fixedly connected to the third guide rod through the fixed block; when the second adjustment plate and the third guide rod move relative to the first adjustment plate along the axial direction of the third bearing seat, the fixed block moves away from or close to the second distance sensor.

[0018] In some embodiments, the grinding device also includes a gear set and a motor; the receiving body is provided with a mounting hole that passes through the receiving body, and the grinding tool is assembled in the mounting hole; the motor is connected to the second end face of the receiving body, the gear set is arranged on the receiving body and the gear set is connected to the output shaft of the motor, and the motor drives the gear set to drive the grinding tool to rotate.

[0019] In some embodiments, the electrode cap automatic grinding equipment also includes a dust suction device, which includes a dust cover, a negative pressure device, a hose and a storage bucket; the dust cover is arranged below the mounting hole of the receiving body, and the dust cover is tightly connected to the receiving body and connected to the negative pressure device, and the hose connects the negative pressure device and the storage bucket.

[0020] In some embodiments, the buffer device also includes a second spring and a fourth bearing seat; the first guide rod is simultaneously inserted into the first bearing seat and the fourth bearing seat, the second spring is also sleeved on the first guide rod, and the two ends of the second spring respectively abut against the first end face of the receiving body and the fourth bearing seat.

[0021] Beneficial effects of the utility model: The automatic electrode cap grinding device disclosed in the utility model is used for grinding the electrode cap, and comprises a supporting mechanism;

[0022] a buffer device, mounted on the supporting mechanism, the buffer device comprising a first guide rod, a first bearing seat and a first spring, the first guide rod being inserted into the first bearing seat, and the first spring being sleeved on the first guide rod; and

[0023] A grinding device is connected to the buffer device, the grinding device includes a receiving body and a grinding tool, the grinding tool is assembled on the receiving body, the receiving body is provided with a through hole, the receiving body is sleeved on the first guide rod through the through hole and the receiving body can move along the axial direction of the first guide rod; the receiving body includes a first end face close to the electrode cap and a second end face opposite to the first end face, and the two ends of the first spring respectively abut the second end face of the receiving body and the first bearing seat.

[0024] When the electrode cap to be ground comes into contact with the grinding tool, the grinding device is acted upon by the force of the electrode cap to compress the first spring. The elastic force generated by the compression of the first spring enables the grinding tool to fit closely with the electrode cap, so that the grinding tool can grind each electrode cap according to the degree of wear, thereby avoiding the problem of over-grinding when electrode caps with inconsistent wear are ground according to the maximum grinding amount, avoiding waste of resources, reducing the maintenance cost of the electrode cap, and increasing the service life of the electrode cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The overall structure diagram of the automatic electrode cap grinding device provided by the embodiment of the utility model;

[0027] Figure 2 for Figure 1 The structural diagram of the grinding device and the buffer device of the automatic grinding equipment for the electrode cap shown;

[0028] Figure 3 for Figure 1 The structural diagram of the buffer device of the automatic grinding equipment for the electrode cap shown;

[0029] Figure 4 for Figure 1 An exploded structural diagram of a grinding device of an automatic grinding device for electrode caps shown;

[0030] Figure 5 for Figure 1 The structural diagram of the adjusting device of the automatic grinding device for the electrode cap shown;

[0031] Figure 6 for Figure 1 A schematic diagram of the internal structure of a control device of an automatic electrode cap grinding device is shown;

[0032] Figure 7 A partial structural diagram of the automatic electrode cap grinding device provided by the embodiment of the utility model;

[0033] Figure 8 for Figure 7 An enlarged schematic diagram of a part A of the automatic electrode cap grinding device is shown.

[0034] Figure symbols: support mechanism 1; base 11; fixed mounting column 12; adjustable column 13; rib plate 14; buffer device 2; connecting plate 21; first bearing seat 22; fourth bearing seat 23; first guide rod 24; first spring 25; second spring 26; grinding device 3; receiving body 31; first end face 311; second end face 312; through hole 32; grinding tool 33; mounting seat 34; gear set 35; driving gear 351; reduction gear 352; linkage gear 353; transmission gear 354; tool gear 355; motor 36; upper cover 37; angle connector 4; adjustment device 5; mounting fixing plate 51; adjustment plate assembly 52; first adjustment plate 521; second adjustment plate 522; plate body 5221; fixing block 522 2; driving assembly 53; first driving cylinder 531; second driving cylinder 532; second bearing seat 54; second guide rod 55; third bearing seat 56; third guide rod 57; distance sensing assembly 58; first distance sensor 581; second distance sensor 582; sensing block 583; control device 6; box body 61; fastening buckle 62; bus base 63; solenoid valve group 64; communication module 65; filter 66; heavy-duty plug 67; relay 68; contactor 69; air switch 610; ground bar 611; dust suction device 7; dust cover 71; hose 72; storage barrel 73; negative pressure device 74; barrel body 731; barrel cover 732; ejector structure 733; special-shaped groove 734; insertion port 7341; clamping part 7342. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0037] It should also be noted that, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed", "set", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0038] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0039] It should be further understood that the terms “and, or” used in the present specification and the appended claims refer to any combination and all possible combinations of one or more of the associated listed items, and include these combinations.

[0040] like Figure 1As shown, the utility model discloses an automatic grinding device for electrode caps, which is used for grinding electrode caps, i.e., electrode caps. The automatic grinding device for electrode caps may include a supporting mechanism 1, a buffer device 2, a grinding device 3, an angular connector 4, an adjusting device 5, a control device 6, and a dust collecting device 7. The supporting mechanism 1 is used to support the automatic grinding device for electrode caps on the ground or an installation plane. The buffer device 2 is assembled on the supporting mechanism 1, and the grinding device 3 is connected to the buffer device 2. The grinding device 3 is provided with a blade for grinding the electrode cap, and the grinding device 3 can move within a certain range relative to the buffer device 2. When grinding is required, the electrode cap moves toward the direction of the grinding device 3 and finally contacts the grinding device 3. In this process, the buffer device 2 can reduce the impact force between the electrode cap and the grinding device 3, prevent the electrode cap from being damaged, and extend the service life of the electrode cap. The adjusting device 5 is mounted on the supporting mechanism 1. The adjusting device 5 is connected to the buffer device 2 through the angular connector 4, thereby forming a connection with the grinding device 3. The grinding device 3 can be adjusted in direction and distance to make the position of the grinding device 3 more compatible with the relative position of the electrode cap, thereby improving the grinding quality and reducing the probability of the electrode cap being worn out. The control device 6 is mounted on the supporting mechanism 1 and is electrically connected to the adjusting device 5 to control the start or stop of the adjustment of the adjusting device 5. The dust collecting device 7 is also mounted on the supporting mechanism 1 to absorb and store the debris or waste generated by the electrode cap during the grinding process to keep the automatic grinding equipment and its surrounding environment clean.

[0041] It can be understood that the control device 6 can also be used to control the opening or closing of the grinding device 3 and the dust collecting device 7 .

[0042] In some embodiments, the support mechanism 1 may include a base 11, a fixed installation column 12, an adjustable column 13, and a rib plate 14. The base 11 may be in the shape of a flat plate, and the cross-sectional dimension of the base 11 is larger than the cross-sectional dimension of the fixed installation column 12, so as to improve the stability of the support mechanism 1. The fixed installation column 12 may be a longitudinally long square tube, and its bottom end is fixedly connected to the base 11. The adjustable column 13 is also a longitudinally long square tube, and the cross-sectional dimension of the adjustable column 13 is smaller than the cross-sectional dimension of the fixed installation column 12, so that the adjustable column 13 can be inserted into the fixed installation column 12, and the adjustable column 13 can move relative to the fixed installation column 12 in the direction of the height of the fixed installation column 12, thereby making the height of the entire support mechanism 1 adjustable. Corresponding screw holes or holes are respectively provided on the side walls of the adjustable column 13 and the fixed installation column 12. After the height of the support mechanism 1 is adjusted, the relative position of the adjustable column 13 and the fixed installation column 12 can be fixed by screwing the screw holes or holes in cooperation with the screw holes. The ribs 14 are arranged at intervals on the outer side walls of the fixed installation columns 12 , and the two sides of the ribs 14 are respectively fixedly connected to the outer side walls of the fixed installation columns 12 and the top surface of the base 11 to improve the stability of the base 11 supporting the fixed installation columns 12 .

[0043] In some embodiments, refer to Figure 2 as well as Figure 3 The buffer device 2 may include a connecting plate 21, a first bearing seat 22, a fourth bearing seat 23, a first guide rod 24, a first spring 25 and a second spring 26. The first side surface of the connecting plate 21 is connected to the first surface of the angular connector 4, and the adjusting device 5 is connected to the second surface of the angular connector 4, so as to realize the connection between the buffer device 2 and the adjusting device 5. The first bearing seat 22 and the fourth bearing seat 23 are both arranged on the second side surface of the connecting plate 21, and the second side surface thereof is arranged opposite to the first side surface. The first guide rod 24 is simultaneously inserted into the first bearing seat 22 and the fourth bearing seat 23, the first spring 25 and the second spring 26 are both sleeved on the first guide rod 24, and the grinding device 3 is also sleeved on the first guide rod 24 and the grinding device 3 can move along the axial direction of the first guide rod 24. Alternatively, the grinding device 3 is fixedly connected to the first guide rod 24, and the first guide rod 24 can move relative to the first bearing seat 22 and the fourth bearing seat 23, so that the grinding device 3 and the first guide rod 24 can simultaneously move along the axial direction of the first guide rod 24. The two ends of the first spring 25 respectively abut against the end surface of the first bearing seat 22 and the grinding device 3, and the two ends of the second spring 26 respectively abut against the end surface of the fourth bearing seat 23 and the grinding device 3. The number of the first bearing seat 22, the fourth bearing seat 23, the first guide rod 24, the first spring 25 and the second spring 26 can be set to two groups, and the two groups of the first bearing seat 22, the fourth bearing seat 23, the first guide rod 24, the first spring 25 and the second spring 26 are arranged oppositely and in parallel.

[0044] In some embodiments, refer to Figure 4 The grinding device 3 may include a receiving body 31, a through hole 32, a grinding tool 33, a mounting seat 34, a gear set 35, a motor 36 and an upper cover 37. The through hole 32 is provided at one end of the receiving body 31 close to the buffer device 2, and the receiving body 31 is sleeved on the first guide rod 24 of the buffer device 2 through the through hole 32, so that the receiving body 31 can move along the axial direction of the first guide rod 24. The number of the through holes 32 is the same as the number of the first guide rod 24. The grinding tool 33 is mounted on the receiving body 31 and is used to directly grind the electrode cap. The receiving body 31 is provided with a mounting hole that penetrates the receiving body 31, and the grinding tool 33 is mounted in the mounting hole through the mounting seat 34. The grinding tool 33 is arranged on the inner wall of the mounting seat 34 in an annular interval, and the grinding tool 33 and the mounting seat 34 are tightly matched through the thermal barrier and cold shrinkage principle of metal. The mounting seat 34 can rotate in the mounting hole. The gear set 35 is arranged on the receiving body 31. The motor 36 is connected to the second end surface 312 of the receiving body 31. The gear set 35 is respectively connected to the output shaft of the motor 36 and the mounting seat 34. The motor 36 drives the gear set 35 to drive the mounting seat 34 and the grinding tool 33 to rotate together. The upper cover 37 is assembled on the receiving body 31 and covers the gear set 35.

[0045] In some embodiments, the receiving body 31 includes a first end face 311 close to the electrode cap and a second end face 312 arranged opposite to the first end face 311. The two ends of the first spring 25 of the buffer device 2 respectively abut the second end face 312 of the receiving body 31 and the first bearing seat 22. When the electrode cap moves toward the first end face 311 and contacts the grinding tool 33, the first spring 25 can reduce the impact force of the electrode cap on the grinding tool 33 on the one hand; on the other hand, the elastic force generated by the compression of the first spring 25 can make the grinding tool 33 and the electrode cap fit closely, so that the grinding tool 33 can be ground for each electrode cap according to the degree of wear, thereby avoiding the problem of excessive grinding when the electrode cap with inconsistent wear is ground according to the maximum grinding amount, avoiding waste of resources, reducing the maintenance cost of the electrode cap, and increasing the service life of the electrode cap. The two ends of the second spring 26 of the buffer device 2 respectively abut against the first end face 311 of the receiving body 31 and the fourth bearing seat 23, so that the first end face 311 and the second end face 312 of the receiving body 31 are both in abutment with the spring, so that the movement of the grinding device 3 in two directions can be buffered to prevent the electrode cap from being over-grinded.

[0046] In some embodiments, the gear set 35 may include a driving gear 351, a reduction gear 352, a linkage gear 353, a transmission gear 354, and a tool gear 355. The driving gear 351 is connected to the output shaft of the motor 36, the reduction gear 352 is meshed with the driving gear 351, the linkage gear 353 is coaxial with the reduction gear 352, the transmission gear 354 is meshed with the linkage gear 353, the tool gear 355 is meshed with the transmission gear 354, and the mounting seat 34 serves as the central axis of the tool gear 355, so that the motor 36 drives the mounting seat 34 to rotate, thereby driving the grinding tool 33 to rotate.

[0047] In some embodiments, refer to Figure 5 The adjusting device 5 may include a mounting plate 51, an adjusting plate assembly 52 and a driving assembly 53. The mounting plate 51 is fixed on the supporting mechanism 1, the adjusting plate assembly 52 is arranged above the mounting plate 51, and the adjusting plate assembly 52 is connected to the buffer device 2 through the angle connector 4, and the driving assembly 53 drives the adjusting plate assembly 52 to move relative to the mounting plate 51, thereby driving the buffer device 2 and the grinding device 3 to move relative to the supporting mechanism 1.

[0048] Specifically, the mounting plate 51 can be fixed on the top of the adjustable column 13 of the support mechanism 1. When the adjustable column 13 moves in the height direction relative to the fixed mounting column 12, the mounting plate 51 can be driven to move in the same direction, thereby driving the adjustment device 5 to move in the same direction. The adjustment device 5 can also include a second bearing seat 54, a second guide rod 55, a third bearing seat 56, a third guide rod 57 and a distance sensing component 58. The adjustment plate assembly 52 can include a first adjustment plate 521 and a second adjustment plate 522. The driving assembly 53 can include a first driving cylinder 531 and a second driving cylinder 532. The first adjustment plate 521 is arranged above the mounting plate 51, and the second bearing seat 54 is fixedly connected to the mounting plate 51, and the axis of the second bearing seat 54 is perpendicular to the plane where the first adjustment plate 521 is located. The second guide rod 55 is inserted into the second bearing seat 54 and passes through the mounting plate 51 together, so that the second guide rod 55 can move relative to the mounting plate 51 along the axis direction of the second bearing seat 54. The first adjustment plate 521 is fixedly connected to the top end of the second guide rod 55, the top end of the first driving cylinder 531 is connected to the first adjustment plate 521 and the axis of the first driving cylinder 531 is parallel to the axis of the second bearing seat 54, so as to drive the first adjustment plate 521 and the second guide rod 55 to move along the axial direction of the second bearing seat 54 relative to the mounting fixed plate 51.

[0049] The second adjustment plate 522 is arranged above the first adjustment plate 521, the third bearing seat 56 is fixedly connected to the end surface of the first adjustment plate 521 close to the second adjustment plate 522, and the axis of the second bearing seat 54 is perpendicular to the axis of the third bearing seat 56. The third guide rod 57 is inserted into the third bearing seat 56, so that the third guide rod 57 can move relative to the first adjustment plate 521 along the axis direction of the third bearing seat 56. The second adjustment plate 522 is fixedly connected to the third guide rod 57, one end of the second driving cylinder 532 is connected to the second adjustment plate 522 and the axis of the second driving cylinder 532 is parallel to the axis of the third bearing seat 56, so as to drive the second adjustment plate 522 and the third guide rod 57 to move relative to the first adjustment plate 521 along the axis direction of the third bearing seat 56. The second adjustment plate 522 is connected to the buffer device 2 through the angular connector 4, so that the grinding device 3 connected to the buffer device 2 moves in the axial direction of the second bearing seat 54 and the third bearing seat 56, and then adjusts the relative position of the grinding tool 33 and the electrode cap, so that the grinding tool 33 can be directly aligned with the electrode cap to be ground, thereby reducing the grinding error caused by position deviation and extending the service life of the electrode cap.

[0050] The distance sensing assembly 58 can be connected to the control device 6 for communication, and the distance sensing assembly 58 can include a first distance sensor 581, a second distance sensor 582, and a sensing block 583. The first distance sensor 581 is mounted on the mounting plate 51, and the sensing block 583 is arranged on the second guide rod 55. When the first adjustment plate 521 and the second guide rod 55 move relative to the mounting plate 51 along the axis direction of the second bearing seat 54, the sensing block 583 moves away from or approaches the first distance sensor 581. The first distance sensor 581 can send the distance information between it and the sensing block 583 to the control device 6.

[0051] The second distance sensor 582 is mounted on the first adjustment plate 521. The second adjustment plate 522 includes a plate body 5221 and a fixed block 5222. The fixed block 5222 is connected to the end surface of the plate body 5221 close to the first adjustment plate 521. The plate body 5221 is fixedly connected to the third guide rod 57 through the fixed block 5222. When the second adjustment plate 522 and the third guide rod 57 move relative to the first adjustment plate 521 along the axis direction of the third bearing seat 56, the fixed block 5222 moves away from or close to the second distance sensor 582. The second distance sensor 582 sends the distance information between it and the fixed block 5222 to the control device 6.

[0052] In some embodiments, refer to Figure 6 as well as Figure 7The control device 6 is used to control the opening and closing of the dust collecting device 7, the first driving cylinder 531 and the second driving cylinder 532. It can specifically control the working movement of the first driving cylinder 531 and the second driving cylinder 532 according to the working position arrival signal sent to it by the first distance sensor 581 and the second distance sensor 582, so as to realize automatic control of the grinding device 3 to move to the working position corresponding to the electrode cap to be ground. The control device 6 may include a box 61, a fastening buckle 62, a bus base 63, an electromagnetic valve group 64, and a filter 66, a heavy-duty plug 67, a relay 68, a contactor 69, an air switch 610, a grounding bar 611, a terminal bar and a PG connector arranged in the box 61. The box 61 is assembled on the fixed installation column 12 by fasteners. The solenoid valve group 64 is mounted on the adjustable column 13 through the confluence base 63. The control device 6 is electrically connected to the first driving cylinder 531, the second driving cylinder 532 and the dust collecting device 7 through the solenoid valve group 64 to control the opening and closing of the solenoid valve group 64 and the first driving cylinder 531, the second driving cylinder 532 and the dust collecting device 7. The electrical components arranged in the box body 61 are used for communication connection with the equipment outside the box body 61, electrical connection, automatic opening and closing of the control circuit, input and output of signals and protection circuit, etc.

[0053] In some embodiments, refer to Figure 1 as well as Figure 7 The dust collecting device 7 may include a dust cover 71, a negative pressure device 74, a hose 72 and a storage bucket 73; the dust cover 71 is arranged below the mounting hole of the receiving body 31, and the dust cover 71 is tightly connected to the receiving body 31, the negative pressure device 74 is connected to the outlet of the dust cover 71, and the hose 72 connects the negative pressure device 74 and the storage bucket 73. The dust cover 71 prevents the debris or waste generated during the grinding process from splashing, and introduces the debris or waste into the hose 72 through the negative pressure device 74. The negative pressure device 74 can be electrically connected to the control device 6, and the debris or waste generated during the grinding process can be sucked into the storage bucket 73 through the hose 72 through the negative pressure generated by the negative pressure device 74.

[0054] The storage bucket 73 is arranged below the dust cover. The storage bucket 73 may include a bucket body 731 and a bucket cover 732, and the bucket cover 732 is connected to the side wall of the fixed installation column 12. At least two ejector structures 733 are arranged on the top of the outer wall of the bucket body 731, and a special-shaped groove 734 is arranged on the bucket cover 732 at a position corresponding to the ejector structure 733. The bucket body 731 and the bucket cover 732 can be assembled and disassembled through the ejector structure 733 and the special-shaped groove 734.

[0055] Specifically, see Figure 8The special-shaped groove 734 includes an insertion port 7341 and a clamping portion 7342. When assembling the barrel body 731 and the barrel cover 732, the ejector structure 733 is first inserted into the insertion port 7341, and then the barrel cover 732 is rotated toward the clamping portion 7342 so that the clamping portion 7342 clamps the ejector structure 733 to realize the assembly of the barrel body 731 and the barrel cover 732. The steps for disassembling the barrel body 731 and the barrel cover 732 are opposite to those for assembling.

[0056] The embodiment of the utility model further discloses a grinding method for an electrode cap, which is applied to the automatic grinding device for an electrode cap disclosed in the above embodiment. The grinding method for an electrode cap may include:

[0057] The control device 6 receives a signal that grinding is required;

[0058] The control device 6 controls the adjusting device 5 to perform a first position adjustment to move the grinding device 3 to the grinding working position.

[0059] The grinding working position is the position where the grinding tool 33 is aligned with the upper electrode and the lower electrode of the welding gun. The distance between the first distance sensor 581 and the sensing block 583 is the first working movement distance, and the distance between the second distance sensor 582 and the fixed block 5222 is the second working movement distance. When the grinding device 3 is moved to the grinding working position, the first working movement is judged to be completed by whether the first distance sensor 581 senses the signal of the sensing block 583, and the second working movement is judged to be completed by whether the second distance sensor 582 senses the signal of the fixed block 5222. The relevant electronic control is performed according to the working process, so as to perform subsequent related work such as grinding and chip blowing.

[0060] Start grinding work.

[0061] The motor 36 drives the grinding tool 33 to rotate; the cylinder on the welding gun drives the welding gun electrode to close and clamp the grinding tool 33; the grinding tool 33

[0062] Grind the electrode cap for 1-3 seconds.

[0063] The motor 36 stops working and the equipment returns to its original position after the grinding is completed.

[0064] The upper cylinder of the welding gun returns to its original position, driving the upper electrode of the welding gun to return to its original position, so that the closed upper electrode of the welding gun and the lower electrode of the welding gun are opened. The motor 36 stops running, and the grinding tool 33 stops working. The control device 6 controls the adjustment device 5 to perform the second position adjustment, and the grinding device 3 leaves the grinding working position and returns to the initial position with the adjustment device 5; the electrode cap grinding work is completed.

[0065] By using the automatic electrode cap grinding device and the electrode cap grinding method disclosed in the embodiment of the utility model, the electrode cap can be ground 350-420 times before replacement, the service life of the electrode cap is increased, and the production cost is reduced.

[0066] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automatic electrode cap grinding device for grinding an electrode cap, characterized in that: include: Support mechanism; a buffer device, mounted on the supporting mechanism, the buffer device comprising a first guide rod, a first bearing seat and a first spring, the first guide rod being inserted into the first bearing seat, and the first spring being sleeved on the first guide rod; and A grinding device is connected to the buffer device, the grinding device includes a receiving body and a grinding tool, the grinding tool is assembled on the receiving body, the receiving body is provided with a through hole, the receiving body is sleeved on the first guide rod through the through hole and the receiving body can move along the axial direction of the first guide rod; the receiving body includes a first end face close to the electrode cap and a second end face opposite to the first end face, and the two ends of the first spring respectively abut the second end face of the receiving body and the first bearing seat.

2. The automatic electrode cap grinding device according to claim 1, characterized in that: The electrode cap automatic grinding equipment also includes an adjusting device connected to the buffer device; the adjusting device includes a mounting plate, an adjusting plate assembly and a driving assembly; the mounting plate is fixed on the supporting mechanism, the adjusting plate assembly is arranged above the mounting plate, and the adjusting plate assembly is connected to the buffer device, and the driving assembly drives the adjusting plate assembly to move relative to the mounting plate, thereby driving the buffer device and the grinding device to move relative to the supporting mechanism.

3. The automatic electrode cap grinding device according to claim 2, characterized in that: The adjusting device also includes a second bearing seat and a second guide rod; the driving assembly includes a first driving cylinder, and the adjusting plate assembly includes a first adjusting plate; the first adjusting plate is arranged above the mounting and fixing plate, the second bearing seat is fixedly connected to the mounting and fixing plate, and the axis of the second bearing seat is perpendicular to the plane where the first adjusting plate is located, and the second guide rod is penetrated in the second bearing seat and passes through the mounting and fixing plate together, so that the second guide rod can move relative to the mounting and fixing plate along the axis direction of the second bearing seat, the first adjusting plate is fixedly connected to the second guide rod, the top end of the first driving cylinder is connected to the first adjusting plate and the axis of the first driving cylinder is parallel to the axis of the second bearing seat, so as to drive the first adjusting plate and the second guide rod to move relative to the mounting and fixing plate along the axis direction of the second bearing seat.

4. The automatic electrode cap grinding device according to claim 3, characterized in that: The adjusting device also includes a third bearing seat and a third guide rod; the driving assembly includes a second driving cylinder, and the adjusting plate assembly includes a second adjusting plate; the second adjusting plate is arranged above the first adjusting plate, and the third bearing seat is fixedly connected to the end surface of the first adjusting plate close to the second adjusting plate, and the third guide rod is passed through the third bearing seat so that the third guide rod can move relative to the first adjusting plate along the axial direction of the third bearing seat, the second adjusting plate is fixedly connected to the third guide rod, one end of the second driving cylinder is connected to the second adjusting plate and the axis of the second driving cylinder is parallel to the axis of the third bearing seat, so as to drive the second adjusting plate and the third guide rod to move relative to the first adjusting plate along the axial direction of the third bearing seat; the second adjusting plate is connected to the buffer device.

5. The automatic electrode cap grinding device according to claim 4, characterized in that: The axis of the second bearing seat is perpendicular to the axis of the third bearing seat.

6. The automatic electrode cap grinding device according to claim 4, characterized in that: The electrode cap automatic grinding device further comprises a control device for controlling the first driving cylinder and the second driving cylinder, and the control device is mounted on the supporting mechanism.

7. The automatic electrode cap grinding device according to claim 6, characterized in that: The adjusting device further comprises a distance sensing component which is communicatively connected with the control device; the distance sensing component comprises a first distance sensor, a second distance sensor and a sensing block; the first distance sensor is mounted on the mounting plate, the sensing block is arranged on the second guide rod, and when the first adjusting plate and the second guide rod move relative to the mounting plate along the axis direction of the second bearing seat, the sensing block moves away from or close to the first distance sensor; The second distance sensor is assembled on the first adjustment plate, and the second adjustment plate includes a plate body and a fixed block, wherein the fixed block is connected to the end surface of the plate body close to the first adjustment plate, and the plate body is fixedly connected to the third guide rod through the fixed block; when the second adjustment plate and the third guide rod move relative to the first adjustment plate along the axial direction of the third bearing seat, the fixed block moves away from or close to the second distance sensor.

8. The automatic electrode cap grinding device according to claim 1, characterized in that: The grinding device also includes a gear set and a motor; the receiving body is provided with a mounting hole penetrating the receiving body, and the grinding tool is assembled in the mounting hole; the motor is connected to the second end surface of the receiving body, the gear set is arranged on the receiving body and the gear set is connected to the output shaft of the motor, and the motor drives the gear set to drive the grinding tool to rotate.

9. The automatic electrode cap grinding device according to claim 8, characterized in that: The electrode cap automatic grinding equipment also includes a dust suction device, which includes a dust cover, a negative pressure device, a hose and a storage bucket; the dust cover is arranged below the mounting hole of the receiving body, and the dust cover is tightly connected to the receiving body and connected to the negative pressure device, and the hose connects the negative pressure device and the storage bucket.

10. The automatic electrode cap grinding device according to claim 1, characterized in that: The buffer device also includes a second spring and a fourth bearing seat; the first guide rod is simultaneously inserted into the first bearing seat and the fourth bearing seat, the second spring is also sleeved on the first guide rod, and the two ends of the second spring respectively abut against the first end surface of the receiving body and the fourth bearing seat.

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