CN221493936U - Rivet-free riveting mechanism for condenser guard plate - Google Patents

Abstract

The utility model relates to the technical field of riveting equipment, in particular to a rivet-free riveting mechanism of a condenser guard plate, which comprises a mounting table, wherein a fixing frame is detachably arranged on the mounting table, a pressurizing air hydraulic cylinder is fixed at the upper end of the fixing frame, a power plate frame is detachably arranged at the extending end of the pressurizing air hydraulic cylinder, a male die assembly is detachably arranged at the front side of the power plate frame, a travel switch for regulating and controlling the moving distance of the power plate frame is arranged on the fixing frame, the power plate frame is vertically and slidably matched with the fixing frame, a female die assembly matched with the male die assembly is detachably arranged on the bottom wall of the fixing frame, and the power plate frame is matched with a guide pillar to guide and limit the lifting of the male die assembly, so that the male die assembly is more stable in lifting, the phenomenon that the product quality is reduced due to stamping deviation caused by shaking of the head of the male die assembly is avoided, and the riveting stamping quality is ensured; and the bracket for clamping the guard plate is arranged on the mounting table, so that the influence on riveting quality caused by shaking of a workpiece in the stamping process is avoided, labor is saved, and process safety is improved.

Description

Rivet-free riveting mechanism for condenser guard plate

Technical Field

The utility model relates to the technical field of riveting equipment, in particular to a rivet-free riveting mechanism of a condenser guard plate.

Background

The condenser is one of important devices in a refrigeration system, and mainly comprises a plurality of serpentine condensing pipes and a guard plate for embedding and fixing the condensing pipes, wherein the heat is transferred to ambient air or water through the heat release surface of the condenser and the superheated steam of the refrigerant, and the heat is cooled to saturated steam and further cooled to high-pressure liquid for recycling in the system.

The condenser backplate is usually by the amalgamation of multilayer metal sheet, and in order to reduce the damage to product surface coating, reduce manufacturing cost, most backplate is through rivet-free riveter extrusion molding with multilayer metal sheet, and each other detain and produce a riveting point that possesses certain compressive strength, tensile strength, common rivet-free riveter mainly has the mount, the cylinder, the terrace die, the die is constituteed, the die is fixed on the mount, the terrace die is fixed on the extension end of cylinder, along with the extension control terrace die that the cylinder stretches out the end removes, and then punching press riveting, but the unsettled setting of terrace die does not have supplementary direction, easily produce and rock and influence the riveting effect during the punching press, in addition, the condenser backplate has certain length and width, the riveting point has a plurality ofly, need the workman to move by hand, it is unsafe, if the workman receives to rock in the punching press in-process moreover, can lead to punching press skew, lead to product quality unstable.

Therefore, the utility model provides a rivet-free riveting mechanism of a condenser guard plate, which solves the problems that the suspension setting of a male die of a traditional rivet-free riveting machine is unstable and the placing of the riveting machine is stable.

Disclosure of utility model

The utility model aims to solve the problems in the prior art, and provides a rivet-free riveting mechanism of a condenser guard plate.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The rivet-free riveting mechanism for the condenser guard plate comprises a mounting table, a fixing frame is detachably mounted on the mounting table, a pressurizing air hydraulic cylinder is fixed at the upper end of the fixing frame, a power plate frame is detachably mounted at the extending end of the pressurizing air hydraulic cylinder, a male die assembly is detachably mounted at the front side of the power plate frame, a travel switch for regulating and controlling the moving distance of the power plate frame is arranged on the fixing frame, the power plate frame is vertically and slidably matched with the fixing frame, a female die assembly matched with the male die assembly is detachably mounted on the bottom wall of the fixing frame, and a bracket for clamping the guard plate is arranged on the mounting table.

Preferably, a plurality of through holes are formed in the power plate frame at intervals, guide sleeves are embedded in each through hole, and a plurality of guide posts vertically matched with the guide sleeves in a sliding mode are arranged in the fixing frame.

Preferably, four adjusting screws are uniformly distributed on the periphery of the fixing frame, and the adjusting screws are in threaded connection with the mounting table.

Preferably, an adjustable screw rod is arranged at the extending end of the pressurizing pneumatic cylinder, the adjustable screw rod penetrates through the power plate frame, nuts are arranged on the adjustable screw rod at axial intervals in a threaded mode, and the two nuts are respectively abutted against the upper end face and the lower end face of the power plate frame.

Preferably, the travel switch is covered with a travel switch collision block embedded in the rear side of the power board frame, a travel switch support is fixed in the rear side of the fixing frame, and two contact switches matched with the travel switch collision block are arranged on the travel switch support at vertical intervals.

Preferably, the bracket comprises a bottom plate fixed on the mounting table, an opening matched with the fixing frame is formed in the side of the bottom plate, a clamping frame is slidably mounted on the bottom plate along the length direction, a moving frame is mounted on the clamping frame along the moving vertical sliding direction of the clamping frame, a top spring is arranged between the clamping frame and the moving frame, matched clamping grooves are formed in the clamping frame and the upper end of the moving frame, and a guide plate matched with the moving frame is fixed on the bottom plate.

Preferably, the left end and the right end of the clamping frame are respectively provided with a fixed cylinder, the left end and the right end of the movable frame are respectively provided with a movable cylinder in sliding fit with the fixed cylinder, and the top springs are respectively propped against the end surfaces of the fixed cylinder and the movable cylinder.

Preferably, a sleeve is fixed on the side wall of the fixed cylinder on one side, and a holding handle is arranged on the side wall of the sleeve.

Preferably, the upper end of the guide plate is provided with a pressing plate.

Compared with the prior art, the utility model provides a rivet-free riveting mechanism of a condenser guard plate, which has the following beneficial effects:

1. According to the utility model, the upper end of the fixing frame is fixedly provided with the pressurized air-liquid cylinder, the extending end of the pressurized air-liquid cylinder is detachably provided with the power plate frame, the front side of the power plate frame is detachably provided with the male die assembly, the fixing frame is provided with the travel switch for regulating and controlling the moving distance of the power plate frame, the power plate frame is vertically in sliding fit with the fixing frame, the bottom wall of the fixing frame is detachably provided with the female die assembly matched with the male die assembly, and the lifting of the male die assembly is guided and limited through the matching of the power plate frame and the guide post, so that the male die assembly is more stable to lift, the reduction of product quality caused by stamping deviation due to shaking of the head of the male die assembly is avoided, and the riveting stamping quality is ensured.

2. The bracket is arranged on the mounting table, the bracket comprises a bottom plate, a clamping frame and a movable frame, the clamping frame slides left and right on the movable frame, the movable frame slides back and forth on the clamping frame, a top spring is arranged between the movable frame and the clamping frame, a guide plate is arranged on the bottom plate and is in an arc shape inclined outwards to push the clamping frame to move, the movable frame abuts against the guide plate and tends to the clamping frame, so that a guard plate is clamped, a pressing plate is arranged at the upper end of the guide plate and is pressed on the surface of the guard plate, the guard plate is limited and fixed.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows; and will be apparent to those skilled in the art in part based upon a review of the following; or may be learned by practice of the utility model.

Drawings

Fig. 1 is a right side partial cross-sectional view of the present utility model.

Fig. 2 is a schematic front view of the present utility model.

FIG. 3 is a schematic view of the power panel rack of the present utility model assembled thereon.

Fig. 4 is a partial schematic view of fig. 1 at a in accordance with the present utility model.

Fig. 5 is a schematic perspective view of a bracket according to the present utility model.

Fig. 6 is a schematic top view of the bracket of the present utility model.

Fig. 7 is a schematic diagram of the cooperation of the fixed frame and the movable frame of the present utility model.

Fig. 8 is a schematic view of the hydraulic components of the apparatus of the present utility model.

Fig. 9 is an electronically controlled schematic of the apparatus of the present utility model.

In the figure: 1. a fixing frame; 2. a pressurized pneumatic-hydraulic cylinder; 3. a nut; 4. a power plate frame; 5. guide sleeve; 6. a guide post; 7. a male die assembly; 8. a female die assembly; 9. a travel switch collision block; 10. a travel switch bracket; 11. a contact switch; 12. a bottom plate; 13. a clamping frame; 14. a moving rack; 15. a clamping groove; 16. and a guide plate.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 9 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments.

In order to enable the lifting and the stability of a male die to be more stable during riveting and stamping, the embodiment provides a rivet-free riveting mechanism of a condenser guard plate, which comprises a mounting table made of a metal plate, wherein a fixing frame 1 is detachably arranged on the mounting table, the fixing frame 1 is formed by welding the metal plate, the upper end of the fixing frame 1 is fixedly provided with a pressurized air cylinder 2 (comprising an oil storage barrel and a pre-pressing piston) through a fastener, the extending end of the pressurized air cylinder 2 penetrates through the upper end surface of the fixing plate, the extending end of the pressurized air cylinder 2 is provided with an adjustable screw rod, two nuts 3 are axially and alternately threaded on the adjustable screw rod, a power plate frame 4 is jointly abutted between the two nuts 3, a plurality of through holes are alternately arranged on the power plate frame 4, guide sleeves 5 are embedded in the through holes, guide posts 6 are inserted in the guide sleeves 5, the guide post 6 is vertically in sliding fit with the guide sleeve 5, the upper end and the lower end of the guide post 6 are respectively arranged on the upper end face and the lower end face of the fixing frame 1, the male die assembly 7 is detachably arranged at the lower end of the front side of the power plate frame 4, the male die assembly 7 comprises a mounting block fixed on the power plate frame 4 through a fastener and a male die in threaded connection with the mounting block, a female die assembly 8 matched with the male die assembly 7 is arranged on the bottom wall of the fixing frame 1, the female die assembly 8 is fixed on the bottom wall of the fixing frame 1 through countersunk screws, a stamping pit matched with the male die is arranged on the surface of the female die assembly 8, the lifting of the male die assembly 7 is guided and limited through the matching of the power plate frame 4 and the guide post 6, so that the lifting of the male die assembly 7 is more stable, the phenomenon that the head of the male die assembly 7 shakes to lead to the reduction of product quality due to stamping offset is avoided, and the riveting stamping quality is ensured;

the rear end of the power plate frame 4 is embedded with a travel switch collision block 9, the rear side of the fixing frame 1 is provided with a travel switch bracket 10, two contact switches 11 matched with the travel switch collision block 9 are vertically arranged on the travel switch bracket 10 at intervals, the two contact switches 11 are electrically connected with a controller, and the controller is electrically connected with the pressurized air cylinder 2.

In this embodiment, four adjusting screws are uniformly distributed on the periphery of the fixing frame 1, the adjusting screws are in threaded connection with the mounting table, and the levelness of the fixing frame 1 can be adjusted by screwing the adjusting screws, so that the adjustment requirement of the end surface evenness is met.

In this embodiment, all threaded connections have self-locking properties, avoiding the deflection of the threads during non-autonomous adjustment from affecting the stability and levelness of the device.

The specific use process of this embodiment is shown in fig. 8 and 9:

the first step: starting an action program, ventilating P2 and P3, and lifting the extending end of the pressurizing pneumatic cylinder 2;

and a second step of: placing a riveting piece on the surface of the female die assembly 8 and keeping stable;

And a third step of: the travel switch collision block 9 collides with the contact switch 11 on the upper side, KM is electrified to be absorbed and self-locked, KA1-1 and KA2 are electrified, P1 and P3 are ventilated, compressed air acts on the surface of hydraulic oil in the oil storage barrel of the pressurizing hydraulic cylinder 2, the hydraulic oil drives the piston to move downwards, the power plate frame 4 is driven to move downwards, and the male die component 7 is driven to move downwards to abut against the surface of the riveting piece;

Fourth step: when the male die assembly 7 contacts the riveting piece, the travel switch collision block 9 collides with the contact switches 11SQ1 and KA2 on the lower side to lose electricity, the P1 and P4 are ventilated and the P3 is exhausted, compressed air acts on the piston to enable the piston to descend to extrude hydraulic oil in the pre-pressing cavity, the hydraulic oil expands, so that a die at the shaft end of the piston keeps high pressure, namely the piston is in a supercharging state (the maximum travel of working is 10 mm), and the riveting process of extrusion molding is completed; meanwhile, the time relay ST1 is powered on, and the contact demonstration (1-10 s) is disconnected;

Fifth step: ST1 is in delayed suction, KA2 is in electric suction, P3 is ventilated, P4 is exhausted, the piston rises to a proper position, the male die assembly 7 is separated from the female die assembly 8, namely, the male die is removed, P2 is ventilated, P1 is exhausted, the piston returns, hydraulic oil returns to the oil storage barrel, and at the moment, an action cycle is completed;

Sixth step: and moving the riveting piece to the next riveting point until all the riveting points are riveted.

In embodiment 2, in order to make the riveting piece keep stable in the extrusion process, improve the operation security, in this embodiment, a bracket is provided, be used for lifting restriction condenser backplate, the bracket is including fixing the bottom plate 12 on the mount table, bottom plate 12 is the rectangle, bottom plate 12 avris is equipped with the opening, the opening inlay card is on the fixed plate left and right sides wall, be close to mount 1 side left and right slidable mounting on bottom plate 12 has dress holder 13, dress holder 13 is equipped with the opening towards mount 1 one side, the diapire is equipped with the deflection groove, avoid dress holder 13 remove collision die assembly 8, clamping holder 13 left and right sides all is fixed with the fixed cylinder, all imbed the sleeve on two fixed cylinder lateral walls, all inserted the movable cylinder on two sleeves, be equipped with the top spring between movable cylinder and the fixed cylinder, the common fixedly connected with movable frame 14 of two movable cylinders, make movable frame 14 relative dress holder 13 back and forth sliding fit, clamping holder 13 and movable frame 14's surface all are equipped with draw-in groove 15, be used for clamping condenser backplate, be fixed with the deflector 16 of movable frame 14 cooperation on mount 1 side on bottom plate 12, left and right sides 16, be equipped with the deflector 16 of sloping side, be equipped with the arc-shaped clamp plate 16 on the side, the deflector 16 is equipped with the arc-shaped side of side, reduce the wearing and tearing.

When the riveting machine is used, the condenser guard plates are placed into the clamping frames 13 and the clamping grooves 15 on the movable frames 14, the holding handles are held, the clamping frames 13 are pushed to the left, the side walls of the movable frames 14 are contacted with the arc-shaped sections of the guide plates 16 to move towards the clamping frames 13, so that the condenser guard plates are clamped, the pressing plates on the guide plates 16 are pressed on the surfaces of the condenser guard plates, the condenser is completely limited through the clamping grooves 15 and the pressing plates, the influence on the riveting quality due to the deviation of the guard plates is avoided in the punching riveting process, when the openings on the clamping frames 13 correspond to the female die assemblies 8, pushing is stopped, an action program is started, punching is started, and the guide plates 16 are sequentially moved according to the riveting points, after the riveting is completed, the movable frames 14 are reset, the guard plates can be taken down at the moment, then the clamping frames 13 are reset, the next guard plates can be started to be riveted, and compared with the traditional clamping structure, such as screw rod butt joint, the bracket structure in the embodiment is simple, and the clamping force of the equipment structure is used, the clamping process is realized, the clamping is stable, the whole efficiency is fast, and the processing efficiency is improved.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (9)

1. The utility model provides a condenser backplate rivet-free riveting mechanism, a serial communication port, including the mount pad, demountable installation has mount (1) on the mount pad, mount (1) upper end is fixed with pressure boost pneumatic cylinder (2), pressure boost pneumatic cylinder (2) stretch out end demountable installation have power grillage (4), power grillage (4) front side demountable installation have terrace die subassembly (7), be equipped with the travel switch that is used for regulating and control power grillage (4) removal interval on mount (1), power grillage (4) and mount (1) vertical sliding fit, demountable installation has on the mount (1) diapire with terrace die subassembly (7) complex die subassembly (8), be equipped with the bracket that is used for the clamping backplate on the mount pad.

2. The rivet-free riveting mechanism of the condenser guard plate according to claim 1, wherein a plurality of through holes are formed in the power plate frame (4) at intervals, guide sleeves (5) are embedded in each through hole, and a plurality of guide posts (6) which are vertically matched with the guide sleeves (5) in a sliding mode are arranged in the fixing frame (1).

3. The rivet-free riveting mechanism of the condenser guard plate according to claim 1, wherein four adjusting screws are uniformly distributed on the periphery of the fixing frame (1), and the adjusting screws are connected with the mounting table through bolts.

4. The rivet-free riveting mechanism of the condenser guard plate according to claim 1, wherein an adjustable screw rod is arranged at the extending end of the pressurizing air hydraulic cylinder (2), the adjustable screw rod penetrates through the power plate frame (4), nuts (3) are axially arranged on the adjustable screw rod at intervals in a threaded mode, and the two nuts (3) are respectively abutted to the upper end face and the lower end face of the power plate frame (4).

5. The rivet-free riveting mechanism of the condenser guard plate according to claim 1, wherein the travel switch edge is embedded into a travel switch collision block (9) at the rear side of the power plate frame (4), a travel switch support (10) is fixed at the rear side of the fixing frame (1), and two contact switches (11) matched with the travel switch collision block (9) are vertically arranged on the travel switch support (10) at intervals.

6. The rivet-free riveting mechanism of a condenser guard plate according to claim 1, wherein the bracket comprises a bottom plate (12) fixed on an installation table, an opening matched with the fixed frame (1) is formed in the side of the bottom plate (12), a clamping frame (13) is slidably mounted on the bottom plate (12) along the length direction, a movable frame (14) is slidably mounted on the clamping frame (13) along the movement direction of the clamping frame, a top spring is arranged between the clamping frame (13) and the movable frame (14), clamping grooves (15) matched with the upper ends of the clamping frame (13) and the movable frame (14) are formed in the upper ends of the clamping frame (13) and the movable frame (14), and a guide plate (16) matched with the movable frame (14) is fixed on the bottom plate (12).

7. The rivetless riveting mechanism of the condenser guard plate according to claim 6, wherein the left end and the right end of the clamping frame (13) are respectively provided with a fixed cylinder, the left end and the right end of the moving frame (14) are respectively provided with a moving cylinder which is in sliding fit with the fixed cylinder, and the top springs are respectively propped against the end surfaces of the fixed cylinder and the moving cylinder.

8. The rivetless riveting mechanism of a condenser shroud according to claim 7, wherein a sleeve is secured to one side of the stationary barrel, and a handle is provided on the sleeve side wall.

9. The rivetless riveting mechanism of a condenser shroud according to claim 6, wherein the upper end of the guide plate (16) is provided with a pressure plate.