CN108381009A - Chassis corrugated plating electric arc spot welding pressing device - Google Patents

Abstract

A kind of chassis corrugated plating electric arc spot welding pressing device, including longitudinal movement part, pressing section and transverse shifting part, the longitudinal movement part includes crossbeam frame and upper lower sheave, respectively there are two hook arms for installation respectively at crossbeam frame both ends, two pairs of risers of each setting are distinguished below in crossbeam frame both ends, top sheave is mounted between two pairs of risers, and lower sheave is mounted between two hook arms；The pressing section includes hydraulic fluid tank, hydraulic cylinder, hydraulic push rod, profile-followed pressing plate, adjustable pressing block, supporting rack, hydraulic fluid tank is mounted on supporting rack upper plate, hydraulic cylinder lower end is fixedly mounted in supporting rack lower plate, hydraulic push rod lower end is connected at the center of profile-followed pressing plate, adjustable pressing block is connected below profile-followed pressing plate, it respectively connect a guide rod across supporting rack lower plate and profile-followed pressing plate both sides, spring is cased with positioned at supporting rack lower plate above section on guide rod；The transverse shifting part is respectively to install a sliding block at supporting rack lower plate both ends, and the sliding rail of one and sliding block cooperation is installed below in crossbeam frame.The present invention can be achieved to operate the compression of corrugated plating different parts, convenient, time saving, laborsaving.

Description

Arc spot welding pressing device for base frame corrugated plate

technical field

The invention belongs to the field of urban rail vehicle manufacturing engineering and relates to a welding and pressing device, in particular to an arc spot welding and pressing device for a rail vehicle underframe corrugated plate.

Background technique

In the manufacturing process of the steel structure of the urban rail vehicle body, the welding of the corrugated plate pavement of the large-scale underframe skeleton adopts molten electrode arc spot welding. The main beam is compressed and welded. In this case, due to the error of the material, the corrugated plate and the beam cannot be pressed tightly by the gravity of the person in some positions. However, welding under the condition of loose materials will affect the quality of welding and the structural strength of components.

Contents of the invention

The purpose of the present invention is to solve the problem that the contact surface between the corrugated floor and the main beam is not tightly pressed during the existing arc spot welding, and to provide a corrugated floor arc spot welding press that can press the material tightly to facilitate welding and ensure welding quality. tighten the device.

In order to achieve the above object, the present invention provides a corrugated plate arc spot welding pressing device for the chassis, which is characterized in that it includes a longitudinal moving part, a pressing part and a lateral moving part, and the longitudinal moving part includes a beam frame and upper and lower pulleys , the two ends of the beam frame are respectively equipped with two hook arms, and the lower sides of the beam frame are respectively provided with two pairs of vertical plates, the upper pulley is installed between the two pairs of vertical plates, and the lower pulley is installed between the two hook arms; The above-described pressing part includes a hydraulic tank, a hydraulic cylinder, a hydraulic push rod, a conformal pressure plate, an adjustable pressure block, and a support frame. The hydraulic tank is installed on the upper plate of the support frame, and the lower end of the hydraulic cylinder is fixedly installed on the lower plate of the support frame. The lower end of the hydraulic push rod is connected to the center of the conformal pressure plate, and the adjustable pressure block is connected under the conformal pressure plate, passing through the lower plate of the support frame and connected with a guide rod on both sides of the conformal pressure plate, and the guide rod is located above the lower plate of the support frame The spring is covered; the lateral moving part is to install a slide block at both ends of the lower plate of the support frame, and install a slide rail cooperating with the slide block under the beam frame.

The installation position of the adjustable pressure block corresponds to the groove of the corrugated plate.

The matching form of the sliding block and the sliding rail is a dovetail groove matching.

The lower pulley of the longitudinal moving part is in clearance fit with the lower part of the side beam of the car body, so as to prevent the beam frame from being lifted up by the corrugated plate when the pressing mechanism exerts downward pressure.

In the present invention, the base frame is used as a support rail to manufacture a pressing device, which can be longitudinally guided along the base frame and reach any position on the base frame that requires arc spot welding. A slider is installed at both ends of the lower plate of the support frame, and a slide rail matched with the slider is installed under the beam frame, so that the pressing part can move laterally along the beam frame, and stretch out downward at the position that needs to be pressed. The block is in contact with the pressing position. When pressing, the hook-shaped arm hook on the beam frame provides a pressing reaction force on the lower wing surface composed of the chassis, preventing the beam frame from being corrugated when the pressing mechanism exerts pressure downward. Jack up. The hydraulic pressing method is adopted, which is convenient to operate, saves time and effort.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is the front view of the present invention;

Fig. 3 is a side view of the present invention;

FIG. 4 is a partially enlarged view of FIG. 3 .

Detailed ways

Referring to Fig. 1-Fig. 4, the specific embodiment of the present invention includes a longitudinal moving part, a pressing part and a lateral moving part. The longitudinal moving part includes a beam frame 1, an upper pulley 2 and a lower pulley 3, and the two ends of the beam frame 1 are connected Side plate 4, bottom plate 5 is connected below two ends, and two hook arms 6 are installed respectively on the two ends side plates 4 respectively, and hook arm 6 is made of two parts, can adjust length according to different models. A pair of vertical plates 7 are respectively connected to the front and back of the bottom plate 5 below the two ends of the beam frame, the upper pulley 2 is installed on the upper pulley shaft 8 between the two pairs of vertical plates 7, and the lower pulley 3 is installed on the connection between the two hook arms 6. On the lower pulley shaft 10 on the plate 9, the lower pulley 3 forms a 11 lower clearance fit with the underframe to prevent the crossbeam frame from being lifted up by the corrugated plate 12 when the pressing mechanism applies pressure downwards.

The pressing part includes a hydraulic tank 13, a hydraulic cylinder 14, a hydraulic push rod 15, a conformal pressure plate 16, an adjustable pressure block 17, and a support frame. The hydraulic tank is installed on the upper plate 18 of the support frame, and the lower end of the hydraulic cylinder is fixedly installed On the lower plate 19 of the support frame, the lower end of the hydraulic push rod is connected to the center of the pressure plate with the shape, and the adjustable pressure block 17 is connected below the pressure plate 16 with the shape, and a guide rod 20 is connected to each side of the pressure plate through the lower plate of the support frame. A spring 21 is sheathed on the guide rod above the lower plate of the support frame, and the installation position of the adjustable pressure block corresponds to the groove of the corrugated plate.

Described lateral movement part is that a slide block 22 is respectively installed at both ends of the lower plate of the support frame, and a slide rail 23 cooperating with the slide block is installed under the beam frame. The matching form of the sliding block and the sliding rail is a dovetail groove matching.

Working process: When pushing the entire pressing device, the pressing device can move longitudinally on the corrugated plate through the upper pulley 2, and the lower pulley does not contact the lower part of the bottom frame. When lateral movement is required, push the lower plate 19 of the support frame, the entire pressing part moves laterally along the slide rail through the slider, and moves to the required welding part, and the hydraulic push rod 15 of the hydraulic cylinder moves downward, driving the follow-up pressing plate 16 The adjustable pressure block presses the corrugated plate downwards. When the device presses the corrugated plate downwards, the hook arm hooks the bottom frame to complete the purpose of pressing the corrugated plate of the bottom frame; when the hydraulic push rod of the hydraulic cylinder moves upwards When moving, the follower platen is driven to leave the corrugated plate, and the spring 21 rebounds to increase the stability when the follower platen 4 leaves the corrugated plate, thereby realizing the pressing operation on different parts of the corrugated plate.

When there is no pressure, the pressing device can be moved vertically and horizontally by manual pushing by the operator, and the friction force is very small. It is very labor-saving to manually push in these two directions, and there is no need to use external force to move the pressing device.

Claims (4)

1. A compacting device for arc spot welding of corrugated plate under frame, characterized in that: it includes a longitudinal moving part, a pressing part and a lateral moving part, the longitudinal moving part includes a beam frame and upper and lower pulleys, and the two ends of the beam frame are respectively Two hook-shaped arms are respectively installed, and two pairs of vertical plates are respectively arranged on the lower sides of the two ends of the beam frame, the upper pulley is installed between the two pairs of vertical plates, and the lower pulley is installed between the two hook-shaped arms; the pressing part includes Hydraulic box, hydraulic cylinder, hydraulic push rod, conformal pressure plate, adjustable pressure block, support frame, the hydraulic tank is installed on the upper plate of the support frame, the lower end of the hydraulic cylinder is fixedly installed on the lower plate of the support frame, and the lower end of the hydraulic push rod is connected to the At the center of the conformal pressure plate, an adjustable pressure block is connected to the bottom of the conformal press plate, and a guide rod is respectively connected to each side of the support frame lower plate and the conformal press plate, and a spring is set on the guide rod above the support frame lower plate; The lateral moving part is to install a slide block at both ends of the lower plate of the support frame, and install a slide rail matched with the slide block under the beam frame. 2. The arc spot welding pressing device for the corrugated plate of the chassis according to claim 1, wherein the installation position of the adjustable pressure block corresponds to the groove of the corrugated plate. 3. The arc spot welding pressing device for the corrugated plate of the base frame according to claim 1, characterized in that: the matching form of the sliding block and the sliding rail is dovetail groove matching. 4. The arc spot welding pressing device for the corrugated plate of the bottom frame according to claim 1, characterized in that: the lower pulley of the longitudinal moving part is in clearance fit with the bottom frame.