阅读说明：本技术 一种led数码管装配用点焊设备及其工作方法 (Spot welding equipment for assembling LED nixie tube and working method thereof ) 是由 卢鑫 卢国勇 何秀娟 何锁宝 于 2021-09-02 设计创作，主要内容包括：本发明公开了一种LED数码管装配用点焊设备,包括调节组件一、调节组件二、焊接组件和夹持组件,所述调节组件一底部焊接有支撑底座,所述调节组件一包括第一丝杆、第一滑块和第一支撑板,所述第一丝杆顶部安装有第一电机,所述第一滑块一侧焊接有连接板,将LED数码管放置在第二固定块和推板之间,通过液压缸带动液压杆运动,进而液压杆带动推板运动,可以对不同规格的LED数码管进行夹紧固定,避免LED数码管在点焊作业时滑动,便于焊头对LED数码管进行点焊工作,使点焊工作过程更加的稳定精确,通过调节调节组件二,可以使焊头进行左右运动,保证了焊头可以对LED数码管进行大面积的点焊工作,提高工作效率,实现了该设备在使用时的高效性。(The invention discloses spot welding equipment for assembling an LED nixie tube, which comprises a first adjusting assembly, a second adjusting assembly, a welding assembly and a clamping assembly, wherein a supporting base is welded at the bottom of the first adjusting assembly, the first adjusting assembly comprises a first lead screw, a first slide block and a first supporting plate, a first motor is installed at the top of the first lead screw, a connecting plate is welded at one side of the first slide block, the LED nixie tube is placed between a second fixed block and a push plate, a hydraulic rod is driven by a hydraulic cylinder to move, and then the hydraulic rod drives the push plate to move, so that the LED nixie tube with different specifications can be clamped and fixed, the LED nixie tube is prevented from sliding during spot welding operation, the spot welding operation of the LED nixie tube by a welding head is facilitated, the spot welding operation process is more stable and accurate, the welding head can move left and right by adjusting the second adjusting assembly, and the large-area spot welding operation of the LED nixie tube is ensured, the working efficiency is improved, and the high efficiency of the equipment in use is realized.)

1. The utility model provides a LED charactron assembly is with spot welding equipment, includes regulating part one (2), regulating part two (3), welding subassembly (4) and centre gripping subassembly (5), its characterized in that: the bottom of the first adjusting assembly (2) is welded with a supporting base (1), the first adjusting assembly (2) comprises a first screw rod (201), a first sliding block (203) and a first supporting plate (207), a first motor (202) is installed at the top of the first screw rod (201), a connecting plate (204) is welded on one side of the first sliding block (203), a second sliding block (205) is welded on one side of the connecting plate (204), the second sliding block (205) is connected with a sliding rail (206), and a second adjusting assembly (3) is arranged on the connecting plate (204);

the second adjusting assembly (3) comprises a second screw rod (301), a third sliding block (303) and a supporting frame (306), a second motor (302) is installed at one end of the second screw rod (301), an upper buckle (304) is arranged at the top of the third sliding block (303), a lower buckle (305) is arranged at the bottom of the third sliding block (303), an upper sliding groove (307) is arranged at the top of the supporting frame (306), and a lower sliding groove (308) is arranged at the bottom of the supporting frame (306);

a welding assembly (4) is arranged on one side of the third sliding block (303), the welding assembly (4) comprises a baffle plate (401) and a welding head (402), one side of the baffle plate (401) is welded on one side of the third sliding block (303), and a clamping assembly (5) is arranged at the bottom of the welding head (402);

the clamping assembly (5) comprises a second supporting plate (501), a first fixing block (502) and a hydraulic cylinder (503), one side of the hydraulic cylinder (503) is connected with a hydraulic rod (504), one side of the hydraulic rod (504) is connected with a push plate (505), and one side of the push plate (505) is provided with a second fixing block (506).

2. The spot welding equipment for assembling the LED nixie tube according to claim 1, wherein: a slotted hole matched with the first screw rod (201) is formed in the middle of the first sliding block (203), threads matched with the first screw rod (201) are arranged inside the slotted hole, the first screw rod (201) is movably connected with the first sliding block (203), and the first screw rod (201) is movably connected with the connecting plate (204).

3. The spot welding equipment for assembling the LED nixie tube according to claim 1, wherein: slide rail (206) one side welding is in one side of first backup pad (207), connecting plate (204) and first backup pad (207) all are the cuboid structure, second slider (205) both sides are provided with the lug, slide rail (206) both sides seted up with the channel of lug looks adaptation, swing joint between second slider (205) and slide rail (206), parallel between first lead screw (201) and slide rail (206).

4. The spot welding equipment for assembling the LED nixie tube according to claim 1, wherein: support frame (306) one side welding is on connecting plate (204), go up buckle (304) and connect on support frame (306) through last spout (307), buckle (305) are connected on support frame (306) through lower spout (308) down, and support frame (306) both sides all are provided with the welding plate, all set up the slotted hole with second lead screw (301) looks adaptation on two welding plates, and two slotted hole middle parts all are provided with the screw thread with second lead screw (301) looks adaptation, and second lead screw (301) set up the middle part at support frame (306) through two slotted holes.

5. The spot welding equipment for assembling the LED nixie tube according to claim 1, wherein: the middle part of the third sliding block (303) is provided with a slotted hole matched with the second screw rod (301), the middle part of the slotted hole is provided with threads matched with the second screw rod (301), the second screw rod (301) is movably connected with the third sliding block (303), the welding head (402) is movably connected with the second screw rod (301), and the welding head (402) is arranged above the second supporting plate (501).

6. The spot welding equipment for assembling the LED nixie tube according to claim 1, wherein: second backup pad (501) and push pedal (505) all are the cuboid structure, first fixed block (502) and second fixed block (506) all weld at the top of second backup pad (501), and second fixed block (506) and second backup pad (501) are parallel between, and second fixed block (506) and push pedal (505) one side all are provided with the rubber pad.

7. The spot welding equipment for assembling the LED nixie tube according to claim 1, wherein: one side of the hydraulic cylinder (503) is connected to one side of the first fixing block (502), the push plate (505) is arranged above the second supporting plate (501), and the second supporting plate (501) is movably connected with the push plate (505).

8. The spot welding equipment for assembling the LED nixie tube according to any one of claims 1 to 7, wherein the method specifically comprises the following steps:

the method comprises the following steps: firstly, the LED nixie tube is placed between a second fixing block (506) and a push plate (505), a hydraulic cylinder (503) drives a hydraulic rod (504) to move, the hydraulic rod (504) drives the push plate (505) to move, and the LED nixie tube is clamped and fixed between the second fixing block (506) and the push plate (505).

Step two: then, a first motor (202) is started, the first motor (202) drives a first screw rod (201) to rotate, the first screw rod (201) drives a first sliding block (203) to move up and down, a connecting plate (204) moves up and down along with the first sliding block (203), a welding head (402) reaches the surface of the LED nixie tube, the first motor (202) is turned off, and the welding head (402) performs spot welding on the LED nixie tube.

Step three: the second motor (302) is started, the second screw rod (301) drives the third sliding block (303) to move left and right, the position of the welding head (402) is changed, spot welding work is conducted on the LED nixie tube, after spot welding is completed, the second motor (302) is closed, the first motor (202) is started, the welding head (402) is far away from the LED nixie tube, the first motor (202) is closed, the hydraulic cylinder (503) drives the hydraulic rod (504) to move, and the LED nixie tube which is completed by spot welding is taken away.

Technical Field

The invention relates to spot welding equipment, in particular to spot welding equipment for assembling an LED nixie tube, and belongs to the technical field of spot welding application.

Background

An LED digital tube (LED Segment display) is formed by packaging a plurality of light emitting diodes together into an 8-shaped device, and is mainly applied to lighting in real life, and spot welding operation needs to be performed on the digital tube in the production process of the LED digital tube, and mainly an electrode on the LED digital tube is spot-welded on a corresponding workpiece connecting plate.

Chinese patent publication No. CN210188894U discloses a spot welding device for nixie tube assembly, comprising: the connecting workpiece plate is arranged at the lower end of the nixie tube body, spot welding grooves are formed in the connecting workpiece plate, first pressing plates are placed on two sides of the bottom end of the connecting workpiece plate, a lower fixing plate is welded on the outer side of each first pressing plate, and a threaded sleeve is welded at the upper end of each lower fixing plate; the beneficial effects are that: the fixing devices are arranged on the two sides of the nixie tube body and the connecting workpiece plate, and can be adjusted to a certain degree, so that the operation is convenient; the threaded rod in the middle of through first clamp plate and second clamp plate carries out rotation regulation height, and is convenient. However, the device has the defect that the spot welding work cannot be carried out on the LED nixie tubes with different specifications.

The existing spot welding equipment for assembling the LED nixie tube still has great defects when in use, the existing spot welding equipment for assembling the LED nixie tube with the same specification performs spot welding operation, the existing spot welding equipment for assembling the LED nixie tube has low working efficiency, and the existing spot welding equipment for assembling the LED nixie tube cannot better protect the LED nixie tube when performing spot welding operation on the LED nixie tube.

Disclosure of Invention

The invention aims to solve the problems that the existing spot welding equipment for assembling the LED nixie tube still has great defects when in use, the existing spot welding equipment for assembling the LED nixie tube carries out spot welding operation on the LED nixie tube with the same specification, the existing spot welding equipment for assembling the LED nixie tube has low working efficiency, and the existing spot welding equipment for assembling the LED nixie tube cannot better protect the LED nixie tube when carrying out spot welding operation on the LED nixie tube, and provides the spot welding equipment for assembling the LED nixie tube and the working method thereof.

The purpose of the invention can be realized by the following technical scheme: a spot welding device for assembling an LED nixie tube comprises a first adjusting assembly, a second adjusting assembly, a welding assembly and a clamping assembly, wherein a supporting base is welded at the bottom of the first adjusting assembly, the first adjusting assembly comprises a first lead screw, a first sliding block and a first supporting plate, a first motor is mounted at the top of the first lead screw, a connecting plate is welded at one side of the first sliding block, a second sliding block is welded at one side of the connecting plate, the second sliding block is connected with a sliding rail, and the connecting plate is provided with the second adjusting assembly;

the second adjusting assembly comprises a second screw rod, a third sliding block and a supporting frame, a second motor is installed at one end of the second screw rod, an upper buckle is arranged at the top of the third sliding block, a lower buckle is arranged at the bottom of the third sliding block, an upper sliding groove is arranged at the top of the supporting frame, and a lower sliding groove is arranged at the bottom of the supporting frame;

a welding assembly is arranged on one side of the third sliding block and comprises a baffle and a welding head, one side of the baffle is welded on one side of the third sliding block, and a clamping assembly is arranged at the bottom of the welding head;

the clamping assembly comprises a second supporting plate, a first fixing block and a hydraulic cylinder, a hydraulic rod is connected to one side of the hydraulic cylinder, a push plate is connected to one side of the hydraulic rod, and the second fixing block is arranged on one side of the push plate.

The invention has further technical improvements that: the middle part of the first sliding block is provided with a groove hole matched with the first screw rod, threads matched with the first screw rod are arranged in the groove hole, the first screw rod is movably connected with the first sliding block, and the first screw rod is movably connected with the connecting plate.

The invention has further technical improvements that: slide rail one side welding is in one side of first backup pad, connecting plate and first backup pad all are the cuboid structure, second slider both sides are provided with the lug, the slide rail both sides set up with the channel of lug looks adaptation, swing joint between second slider and the slide rail, parallel between first lead screw and the slide rail.

The invention has further technical improvements that: the utility model discloses a support frame, including the support frame, the support frame is connected on the connecting plate, go up the buckle through last spout connection on the support frame, the buckle passes through down the spout connection on the support frame down, and the support frame both sides all are provided with welds the board, weld on two boards all set up with the slotted hole of second lead screw looks adaptation, and two slotted hole middle parts all be provided with the screw thread with second lead screw looks adaptation, the second lead screw passes through the middle part of two slotted hole settings at the support frame.

The invention has further technical improvements that: the middle part of the third sliding block is provided with a slotted hole matched with the second screw rod, the middle part of the slotted hole is provided with threads matched with the second screw rod, the second screw rod is movably connected with the third sliding block, the welding head is movably connected with the second screw rod, and the welding head is arranged above the second supporting plate.

The invention has further technical improvements that: second backup pad and push pedal all are the cuboid structure, first fixed block and the equal welding of second fixed block are at the top of second backup pad, and are parallel between second fixed block and the second backup pad, and second fixed block and push pedal one side all are provided with the rubber pad.

The invention has further technical improvements that: pneumatic cylinder one side is connected in one side of first fixed block, the push pedal sets up the top at the second backup pad, swing joint between second backup pad and the push pedal.

The spot welding equipment for assembling the LED nixie tube specifically comprises the following steps:

the method comprises the following steps: firstly, the LED nixie tube is placed between the second fixing block and the push plate, the hydraulic cylinder drives the hydraulic rod to move, the hydraulic rod drives the push plate to move, and the LED nixie tube is clamped and fixed between the second fixing block and the push plate.

Step two: then, a first motor is started, the first motor drives a first screw rod to rotate, the first screw rod drives a first sliding block to move up and down, a connecting plate moves up and down along with the first sliding block, the welding head reaches the surface of the LED nixie tube, the first motor is turned off, and the welding head performs spot welding on the LED nixie tube.

Step three: and after spot welding is completed, the second motor is closed, the first motor is opened, the welding head is kept away from the LED nixie tube, the first motor is closed, the hydraulic cylinder drives the hydraulic rod to move, and the LED nixie tube which is subjected to spot welding is taken away.

Compared with the prior art, the invention has the beneficial effects that:

1. this equipment is through placing the LED charactron between second fixed block and push pedal, and the pneumatic cylinder drives the hydraulic stem motion, and then the hydraulic stem drives the push pedal motion, can press from both sides tight fixedly to the LED charactron of different specifications, avoids the LED charactron to slide when spot welding operation, and the welding head of being convenient for carries out spot welding work to the LED charactron, makes spot welding working process more stable accurate.

2. According to the equipment, the rubber pads are respectively arranged on one sides of the second fixing block and the push plate, unnecessary damage caused when the second fixing block and the push plate clamp and fix the LED nixie tube is avoided, a certain protection effect on the LED nixie tube is achieved, and the safety of clamping and fastening the LED nixie tube in timing is realized.

3. This equipment drives first lead screw through first motor and rotates, and then first lead screw drives first slider up-and-down motion, through adjusting part one, change the height of bonding tool, the bonding head of being convenient for is to the LED charactron memorability spot welding work of different thickness, the flexibility of this equipment when using has been realized, through welding at connecting plate one side there is the second slider, second slider joint is on the slide rail, the steadier of bonding head up-and-down motion has been guaranteed, the bonding head of being convenient for carries out more accurate spot welding work to the LED charactron, the stability of this equipment when adjusting the bonding head height has been realized.

4. The welding head can move left and right by adjusting the second adjusting assembly, so that the welding head can perform large-area spot welding work on the LED nixie tube, the working efficiency is improved, and the high efficiency of spot welding operation on the LED nixie tube is realized.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of an adjusting assembly according to the present invention.

FIG. 3 is a schematic structural diagram of a second adjusting assembly according to the present invention.

Fig. 4 is a schematic view of the supporting frame of the present invention.

FIG. 5 is a schematic view of a welded assembly according to the present invention.

FIG. 6 is an enlarged view of the area A in FIG. 5 according to the present invention.

FIG. 7 is a schematic view of a clamping assembly according to the present invention.

In the figure: 1. a support base; 2. a first adjusting component; 201. a first lead screw; 202. a first motor; 203. a first slider; 204. a connecting plate; 205. a second slider; 206. a slide rail; 207. a first support plate; 3. a second adjusting component; 301. a second lead screw; 302. a second motor; 303. a third slider; 304. an upper buckle; 305. a lower buckle; 306. a support frame; 307. an upper chute; 308. a lower chute; 4. welding the assembly; 401. a baffle plate; 402. a welding head; 5. a clamping assembly; 501. a second support plate; 502. a first fixed block; 503. a hydraulic cylinder; 504. a hydraulic lever; 505. pushing the plate; 506. a second fixed block; .

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a spot welding device for assembling an LED nixie tube comprises a first adjusting assembly 2, a second adjusting assembly 3, a welding assembly 4 and a clamping assembly 5, wherein a supporting base 1 is welded at the bottom of the first adjusting assembly 2, the first adjusting assembly 2 comprises a first lead screw 201, a first slider 203 and a first supporting plate 207, a first motor 202 is installed at the top of the first lead screw 201, the first motor 202 drives the first lead screw 201 to rotate, and then the first lead screw 201 drives the first slider 201 to move up and down, the height of the welding head 402 is changed by the first adjusting assembly 2, so that the welding head 402 can conveniently perform tack welding on the LED nixie tubes with different thicknesses, a connecting plate 204 is welded at one side of the first slider 203, a second slider 205 is welded at one side of the connecting plate 204, the second slider 205 is connected with a sliding rail 206, and the second slider 205 is welded at one side of the connecting plate 204 and is clamped on the sliding rail 206, the welding head 402 can move up and down more stably, so that the welding head 402 can perform more accurate spot welding on the LED nixie tube conveniently, the connecting plate 204 is provided with the second adjusting component 3, the welding head 402 can move left and right by adjusting the second adjusting component 3, the welding head 402 can perform large-area spot welding on the LED nixie tube, and the working efficiency is improved.

The second adjusting assembly 3 comprises a second screw rod 301, a third slider 303 and a support frame 306, a second motor 302 is installed at one end of the second screw rod 301, an upper buckle 304 is arranged at the top of the third slider 303, a lower buckle 305 is arranged at the bottom of the third slider 303, an upper chute 307 is arranged at the top of the support frame 306, and a lower chute 308 is arranged at the bottom of the support frame 306.

Third slider 303 one side is provided with welded assembly 4, welded assembly 4 includes baffle 401 and bonding tool 402, baffle 401 one side welding is in one side of third slider 303, bonding tool 402 bottom is provided with centre gripping subassembly 5, place the LED charactron between second fixed block 506 and push pedal 505, drive hydraulic stem 504 motion through pneumatic cylinder 503, and then hydraulic stem 504 drives push pedal 505 motion, can press from both sides tight fixedly to the LED charactron of different specifications, avoid the LED charactron to slide when spot welding operation, the bonding tool 402 of being convenient for carries out spot welding work to the LED charactron, make spot welding course more stable accurate.

The clamping assembly 5 comprises a second supporting plate 501, a first fixing block 502 and a hydraulic cylinder 503, one side of the hydraulic cylinder 503 is connected with a hydraulic rod 504, one side of the hydraulic rod 504 is connected with a push plate 505, and one side of the push plate 505 is provided with a second fixing block 506.

A slotted hole matched with the first screw rod 201 is formed in the middle of the first sliding block 203, threads matched with the first screw rod 201 are arranged in the slotted hole, the first screw rod 201 is movably connected with the first sliding block 203, and the first screw rod 201 is movably connected with the connecting plate 204.

Slide rail 206 one side welding is in one side of first backup pad 207, and connecting plate 204 and first backup pad 207 all are the cuboid structure, and second slider 205 both sides are provided with the lug, and the channel with lug looks adaptation is seted up to slide rail 206 both sides, has guaranteed that the more steady firm of bonding tool 402 up-and-down motion, and the bonding tool 402 of being convenient for carries out more accurate spot welding work to the LED charactron, swing joint between second slider 205 and the slide rail 206, and is parallel between first lead screw 201 and the slide rail 206.

Support frame 306 one side welding is on connecting plate 204, go up buckle 304 and connect on support frame 306 through last spout 307, lower buckle 305 connects on support frame 306 through lower spout 308, it is more steady to have guaranteed the up-and-down motion of bonding tool 402, it carries out more accurate spot welding work to the LED charactron to be convenient for bonding tool 402, support frame 306 both sides all are provided with the welding plate, all set up the slotted hole with second lead screw 301 looks adaptation on two welding plates, and two slotted hole middle parts all are provided with the screw with second lead screw 301 looks adaptation, second lead screw 301 sets up the middle part at support frame 306 through two slotted holes, avoid the foreign object to cause the damage to second lead screw 301 on the one hand, protect second lead screw 301, guaranteed that second lead screw 301 carries out the operation more permanent, on the other hand also carries out certain protection to operating personnel, avoid causing certain injury to the staff.

The middle part of the third sliding block 303 is provided with a slotted hole matched with the second screw rod 301, the middle part of the slotted hole is provided with threads matched with the second screw rod 301, so that the second screw rod 301 can rotate more stably, the second screw rod 301 drives the welding head 402 to move more stably left and right, the welding head 402 can perform more accurate spot welding work on the LED nixie tube conveniently, the second screw rod 301 is movably connected with the third sliding block 303, the welding head 402 is movably connected with the second screw rod 301, the welding head 402 is arranged above the second supporting plate 501, and the welding head 402 can perform spot welding work on the LED nixie tube placed on the second supporting plate 501 conveniently.

Second support plate 501 and push pedal 505 all are the cuboid structure, first fixed block 502 and second fixed block 506 are all welded at the top of second support plate 501, it is parallel between second fixed block 506 and the second support plate 501, play better fastening fixed action to placing the LED charactron between second fixed block 506 and second support plate 501, be favorable to bonding tool 402 to carry out spot welding operation to the LED charactron, second fixed block 506 and push pedal 505 one side all are provided with the rubber pad, through be provided with the rubber pad respectively in second fixed block 506 and push pedal 505 one side, avoided second fixed block 506 and push pedal 505 to lead to the fact the damage regularly to the fastening of LED charactron, carry out certain protection to the LED charactron.

One side of the hydraulic cylinder 503 is connected to one side of the first fixing block 502, the push plate 505 is arranged above the second supporting plate 501, and the second supporting plate 501 and the push plate 505 are movably connected, so that the friction force between the push plate 505 and the second supporting plate 501 is reduced, the hydraulic rod 504 is favorable for driving the push plate 505 to reciprocate, and the push plate 505 is more firmly fixed on the LED nixie tube clamp.

A spot welding device for assembling an LED nixie tube specifically comprises the following steps:

the method comprises the following steps: firstly, the LED nixie tube is placed between the second fixing block 506 and the push plate 505, the hydraulic cylinder 503 drives the hydraulic rod 504 to move, the hydraulic rod 504 drives the push plate 505 to move, and the LED nixie tube is clamped and fixed between the second fixing block 506 and the push plate 505.

Step two: then, the first motor 202 is started, the first motor 202 drives the first lead screw 201 to rotate, the first lead screw 201 drives the first slider 203 to move up and down, the connecting plate 204 moves up and down along with the first slider 203, the welding head 402 reaches the surface of the LED nixie tube, the first motor 202 is turned off, and the welding head 402 performs spot welding on the LED nixie tube.

Step three: and (3) starting the second motor 302, driving the third sliding block 303 to move left and right by the second screw rod 301, changing the position of the welding head 402, performing spot welding on the LED nixie tube, after the spot welding is completed, closing the second motor 302, starting the first motor 202, keeping the welding head 402 away from the LED nixie tube, closing the first motor 202, and driving the hydraulic rod 504 to move by the hydraulic cylinder 503 to take away the spot-welded LED nixie tube.

When the LED nixie tube clamp is used, firstly, the LED nixie tube is placed between the second fixing block 506 and the push plate 505, the hydraulic cylinder 503 drives the hydraulic rod 504 to move, the hydraulic rod 504 drives the push plate 505 to move, and the LED nixie tube is clamped and fixed between the second fixing block 506 and the push plate 505.

Then, the first motor 202 is started, the first lead screw 201 is driven to rotate by the first motor 201, the first lead screw 201 drives the first slider 201 to move up and down, the connecting plate 204 moves up and down along with the first slider 201, so that the welding head 402 stably reaches the surface of the LED nixie tube, and then the first motor 202 is turned off, and the welding head 402 starts to perform spot welding on the LED nixie tube.

Finally, the second motor 302 is started, the second screw 301 drives the third slider 303 to move left and right, the position of the welding head 402 is changed, the welding head 402 performs spot welding on the LED nixie tube, after the spot welding is completed, the second motor 302 is closed, the first motor 202 is started, the welding head 402 is far away from the LED nixie tube, unnecessary damage to the LED nixie tube caused by the welding head 402 is avoided, the first motor 202 is closed, the hydraulic cylinder 503 drives the hydraulic rod 504 to move, the LED nixie tube which is subjected to spot welding is taken away from the space between the second fixed block 506 and the push plate 505, and when the next spot welding operation on the LED nixie tube is needed, the operations are repeated.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.