Pipe pressing machine

Abstract

The utility model relates to the field of pipe butt joint, in particular to a pipe pressing machine which comprises a pipe pressing mechanism used for jacking a clamping piece nut into a pipe, and a reset mechanism and a limiting mechanism which are used for automatically supplementing the clamping piece nut are arranged on the pipe pressing mechanism. The telescopic part of the jacking air cylinder pushes the jacking seat to enable the jacking head to jack the card nut to one end of the pipe, and the jacking head on one side of the workbench jacks the other card nut to the other end of the pipe along with extrusion of the pipe, so that the card nut can be mounted without welding the card nut and the pipe, the efficiency is improved, and the labor intensity of workers is reduced. The clamping piece nuts needing to be installed are limited through the two limiting seats on the U-shaped frame, meanwhile, the next installed clamping piece nut is fixed through the two concave blocks under the action of the two-way air cylinder, and then after the previous clamping piece nut is installed, the position of the next clamping piece nut can be automatically complemented; and frequent manual installation of card nuts is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe butt joint, in particular to a pipe pressing machine. BACKGROUND

[0002] The pipe pressing machine is a kind of hydraulic equipment for buckling pipe assembly, which applies shrink force to the matched metal joint through the die of buckling machine, and buckles the metal joint on the brake pipe, oil pipe, air conditioning pipe and power pipe on the matched high-pressure oil pipe of engineering machinery or automobile, and the connection of two pipes can be quickly butt-jointed by the way of installing card nut and screw, the existing pipe and card nut are fixed by welding, the fixing way is slow and inefficient, and welding is harmful to the operator's body, and for thinner pipe, the welding way is obviously difficult, and is not conducive to mass production. UTILITY MODEL CONTENTS

[0003] The utility model discloses a pipe pressing machine.

[0004] The utility model discloses the following technical scheme to realize the above-mentioned purpose:

[0005] A kind of pipe pressing machine, including the pipe pressing mechanism for the card nut is inserted into the inside of pipe, reset mechanism and limiting mechanism for the automatic replenishment of card nut are arranged on pipe pressing mechanism;

[0006] Pipe pressing mechanism includes workbench, workbench top is equipped with top pressing seat, one side of top pressing seat is equipped with two pipe supports for supporting pipe, the other side of top pressing seat is equipped with top pressing cylinder for moving, one end of workbench and the side of top pressing seat close to each other are each equipped with three sets of top pressing head;

[0007] Reset mechanism includes two L-shaped frames, two L-shaped frames are slidably connected on one end of workbench and top pressing seat respectively, and the side of two L-shaped frames close to each other is fixed with positioning frame, the end of L-shaped frame away from positioning frame is fixed with reset spring;

[0008] Limiting mechanism includes U-shaped frame, U-shaped frame is fixed on positioning frame, two concave blocks are slidably connected in the inside of U-shaped frame, the end of two concave blocks away from each other is fixed with clamping plate, two clamping plates are fixed with bidirectional cylinder for driving two concave blocks close to each other, concave block lower side is equipped with the limiting seat of sliding connection in the inside of U-shaped frame, two limiting seats lower end are equipped with support seat, and the bottom of support seat is equipped with two elastic sheets.

[0009] Preferably, the U-shaped frame is provided with a first notch at the concave block for facilitating the reciprocating sliding of the U-shaped frame, the U-shaped frame is provided with a second notch at the lower side of the first notch for facilitating the reciprocating sliding of the limiting seat, and the U-shaped frame is provided with a third notch between the second notches for facilitating the up-and-down sliding of the supporting seat.

[0010] Preferably, the two concave blocks are each provided with an arc-shaped notch at the end close to each other for supporting the card nut.

[0011] Preferably, the limiting seat is provided with an arc-shaped side at the side close to the pressing seat for facilitating the feeding of the card nut into the pipe, and the lower end of each limiting seat is provided with an inclined surface, and the two sides of the supporting seat are provided with V-shaped grooves at the positions in contact with the two inclined surfaces.

[0012] Preferably, the positioning frame is fixed with an inclined reinforcing plate at the side close to the L-shaped frame, and the lower end of the reinforcing plate is fixedly connected with the end of the L-shaped frame away from the positioning frame.

[0013] Preferably, the workbench is provided with two parallel guide rails at the top, the two pipe supports are slidingly connected with the guide rails, and the pressing seat is slidingly connected with the guide rails.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] 1. The pressing head pushes the card nut to one end of the pipe by the extension of the pressing cylinder, and then the pressing head on the side of the workbench pushes the other card nut to the other end of the pipe as the pipe is extruded, so that the installation of the card nut can be completed without welding the card nut and the pipe, thereby improving the efficiency.

[0016] 2. The two limiting seats on the U-shaped frame limit the card nut to be installed, and the two concave blocks are used to fix the next card nut to be installed under the action of the double-action cylinder, so that the next card nut can be automatically positioned after the installation of the previous card nut, thereby reducing the frequent installation of the card nut by manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structure diagram of the pipe pressing machine;

[0019] Figure 2 is a partial parts drawing of the pipe pressing mechanism of the pipe pressing machine.

[0020] Figure 3 is the partial sectional view of the limiting mechanism of the pipe pressing machine;

[0021] Figure 4 is the partial parts drawing of the positioning frame of the pipe pressing machine;

[0022] Figure 5 is the partial parts drawing of the U-shaped frame of the pipe pressing machine;

[0023] Figure 6 is the partial parts drawing of the concave block of the pipe pressing machine;

[0024] Figure 7 is the supporting seat and supporting seat cooperation drawing of the pipe pressing machine;

[0025] Figure 8 is the partial parts drawing of the limiting mechanism of the pipe pressing machine.

[0026] The sign explanation is as follows:

[0027] 1, pipe pressing mechanism; 2, reset mechanism; 3, limiting mechanism; 11, workbench; 12, pipe support; 13, top pressing seat; 14, top pressing cylinder; 15, top pressing head; 21, positioning frame; 22, L-shaped frame; 23, reset spring; 31, U-shaped frame; 32, concave block; 33, clamping plate; 34, two-way cylinder; 35, limiting seat; 36, supporting seat; 37, elastic sheet. DETAILED DESCRIPTION

[0028] In the description of the utility model, it needs to be explained that, unless there is explicit definition and limitation, the term "installation", "connection", "connection" should be broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood through specific circumstances.

[0029] The utility model will be further described below in conjunction with the drawings:

[0030] As Figures 1-8 shown, a kind of pipe pressing machine, including for the card nut top into pipe interior pipe pressing mechanism 1, pipe pressing mechanism 1 is provided with for the reset mechanism 2 and limiting mechanism 3 of the automatic replenishment of card nut;

[0031] In the embodiment, the pipe pressing mechanism 1 comprises a workbench 11, the top of the workbench 11 is provided with a pressing seat 13, one side of the pressing seat 13 is provided with two pipe supports 12 for supporting the pipe, the other side of the pressing seat 13 is provided with a pressing cylinder 14 for pushing the pressing seat 13 to move, one end of the workbench 11 is provided with three groups of pressing heads 15 on the side close to the pressing seat 13, two parallel guide rails are formed on the top of the workbench 11, the two pipe supports 12 are slidably connected with the guide rails, the pressing seat 13 is slidably connected with the guide rails, the pressing seat 13 is pushed to move along the guide rails to one side of the workbench 11 by the extension of the pressing cylinder 14, at this time, the pipe pressed into the card nut is supported by the two pipe supports 12, and the card nut is inserted into the two end positions of the pipe by the pressing heads 15 on the workbench 11 and the pressing seat 13.

[0032] In the embodiment, the reset mechanism 2 comprises two L-shaped frames 22, the two L-shaped frames 22 are slidably connected with one end of the workbench 11 and the pressing seat 13 respectively, the two L-shaped frames 22 are fixedly connected with a positioning frame 21 on the side close to each other, the end of the L-shaped frame 22 away from the positioning frame 21 is fixedly connected with a reset spring 23, the side close to the L-shaped frame 22 of the positioning frame 21 is fixedly connected with an inclined reinforcing plate, the lower end of the reinforcing plate is fixedly connected with the end of the L-shaped frame 22 away from the positioning frame 21, the three limiting mechanisms 3 are fixed by the positioning frame 21, and when the end of the positioning frame 21 is in close contact with the pipe end, the pressing head 15 pushes the card nut out of the limiting mechanism 3 by the continuous movement of the pressing seat 13 and the reset spring 23.

[0033] In the embodiment: the limiting mechanism 3 comprises a U-shaped frame 31 fixed on the positioning frame 21, two concave blocks 32 are slidably connected inside the U-shaped frame 31, the ends of the two concave blocks 32 away from each other are fixed with clamping plates 33, a double-acting cylinder 34 for driving the two concave blocks 32 to move close to each other is fixed between the two clamping plates 33, the lower side of the concave block 32 is provided with a limiting seat 35 slidably connected inside the U-shaped frame 31, the lower ends of the two limiting seats 35 are provided with support seats 36, the bottom of the support seat 36 is provided with two elastic sheets 37, the U-shaped frame 31 is provided with a first notch at the position of the concave block 32 for facilitating the reciprocating forward and backward sliding of the concave block 32, the U-shaped frame 31 is provided with a second notch at the lower side of the first notch for facilitating the forward and backward sliding of the limiting seat 35, the U-shaped frame 31 is provided with a third notch between the second notches for facilitating the upward and downward sliding of the support seat 36, the ends of the two concave blocks 32 close to each other are provided with arc notches for supporting the card nut, the side of the limiting seat 35 close to the pressing seat 13 is provided with an arc edge for facilitating the feeding of the card nut into the pipe, and the lower ends of the two limiting seats 35 are provided with inclined surfaces, the sides of the support seat 36 in contact with the two inclined surfaces are provided with V-shaped grooves, the card nut between the two limiting seats 35 is pushed into the pipe by the pressing head 15, when the card nut is pushed out, the two limiting seats 35 move away from each other to release the limiting of the card nut, and at the same time the support seat 36 moves downward and extrudes the elastic sheet 37 to make it bend; the retracting part of the pressing cylinder 14 retracts and drives the pressing seat 13 to move away from the pipe, the reset spring 23 contracts and pulls the L-shaped frame 22 to make the positioning frame 21 move towards the end of the pipe, and then the pressing head 15 exits from the inside of the U-shaped frame 31, at this time the two elastic sheets 37 start to push the support seat 36 to move upward, the lower ends of the two limiting seats 35 are pushed by the V-shaped groove, and then the two limiting seats 35 move towards the middle position at the same time, so as to clamp and fix the next card nut, after the card nut is pushed out, the two retracting parts of the double-acting cylinder 34 drive the two clamping plates 33 to move away from each other, so as to release the clamping of the card nut through the arc notches of the concave blocks 32, and the card nut falls between the two limiting seats 35 for the next pressing installation, and the card nut on the U-shaped frame 31 falls into the position between the arc notches of the concave blocks 32 due to gravity, and the two retracting parts of the double-acting cylinder 34 drive the two concave blocks 32 to move close to each other through the clamping plates 33 to clamp and fix the fallen card nut.

[0034] Working principle: as Figure 1 and Figure 2As shown, in use, the pipe to be installed with the card nut is placed on the two pipe supports 12, at this time, the positions of the two pipe supports 12 can be adjusted to be close to the two ends of the pipe, the card nut is put into the six U-shaped frames 31 from the upper end of the U-shaped frame 31, and the card nut falls between the two limiting seats 35 under the action of gravity, in this process, the two telescopic parts of the double-action cylinder 34 drive the concave blocks 32 to move away from each other through the clamping plates 33, and the concave blocks 32 are clamped and fixed on the two card nuts above the limiting seats 35 through the clamping plates 33. Figure 3 As shown, at this time, the card nuts inside the U-shaped frames 31 are all in stacked placement, and then the two telescopic parts of the double-action cylinder 34 drive the concave blocks 32 to clamp and fix the two card nuts above the limiting seats 35 through the clamping plates 33.

[0035] When the card nut is installed at the two ends of the pipe, the telescopic part of the top pressing cylinder 14 pushes the top pressing seat 13 to move along the track to the end of the pipe, at this time, the two ends of the pipe first contact the side close to the two U-shaped frames 31, and then the top pressing seat 13 continues to move, at this time, the U-shaped frame 31 moves the L-shaped frame 22 along the U-shaped frame 31 through the positioning frame 21, and then the reset spring 23 is stretched, at this time, the top pressing head 15 pushes the card nut between the two limiting seats 35 into the pipe, and when the card nut is pushed out, the two limiting seats 35 move away from each other to release the limiting of the card nut, and at the same time, the supporting seat 36 moves downward and extrudes the elastic sheet 37 to bend, and then the installation of the entire card nut is completed.

[0036] At this time, the telescopic part of the top pressing cylinder 14 is retracted and drives the top pressing seat 13 to move away from the pipe, the reset spring 23 is contracted and pulls the L-shaped frame 22 to make the positioning frame 21 move to the end of the pipe, and then the top pressing head 15 is withdrawn from the inside of the U-shaped frame 31, at this time, the two elastic sheets 37 start to push the supporting seat 36 to move upward, and the V-shaped groove is used to push the inclined surface at the lower end of the two limiting seats 35, and then the two limiting seats 35 move to the middle position at the same time, so as to clamp and fix the next card nut.

[0037] After the card nut is pushed out, the two telescopic parts of the double-action cylinder 34 simultaneously push the two clamping plates 33 to drive the concave blocks 32 to move away from each other, so as to release the clamping of the card nut through the arc-shaped recess of the concave block 32, and at the same time, the card nut falls between the two limiting seats 35 for the next pressing installation, and the card nut on the U-shaped frame 31 falls into the position between the arc-shaped recesses of the concave blocks 32 under the action of gravity, and the two telescopic parts of the double-action cylinder 34 drive the two concave blocks 32 to move close to each other through the clamping plates 33 to clamp and fix the fallen card nut, and then the automatic replenishment of the card nut to be installed is completed.

[0038] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A tube presser, characterized by: The utility model provides a card nut is pressed into the inside of pipe mechanism (1) for toping into the inside of pipe, be provided with reset mechanism (2) and limiting mechanism (3) for the automatic replenishment of card nut on the pipe pressing mechanism (1), The pipe pressing mechanism (1) comprises a workbench (11), the top of the workbench (11) is provided with a pressing seat (13), one side of the pressing seat (13) is provided with two pipe supports (12) for supporting the pipe, the other side of the pressing seat (13) is provided with a pressing cylinder (14) for pushing the movement, and one end of the workbench (11) and the side of the pressing seat (13) close to each other are provided with three sets of pressing heads (15). The reset mechanism (2) comprises two L-shaped frames (22), the two L-shaped frames (22) are respectively slidably connected to one end of the workbench (11) and the pressing seat (13), and the sides of the two L-shaped frames (22) close to each other are fixedly provided with positioning frames (21); the ends of the L-shaped frames (22) away from the positioning frames (21) are fixedly provided with reset springs (23). The limiting mechanism (3) comprises a U-shaped frame (31), the U-shaped frame (31) is fixed on the positioning frame (21), the inner side of the U-shaped frame (31) is slidably connected with two concave blocks (32), the ends of the two concave blocks (32) away from each other are fixedly provided with clamping plates (33), the two clamping plates (33) are fixedly provided with a bidirectional cylinder (34) for driving the two concave blocks (32) to move close to each other, the lower sides of the concave blocks (32) are slidably connected with limiting seats (35) in the inner side of the U-shaped frame (31), and the lower ends of the two limiting seats (35) are provided with supporting seats (36); the bottoms of the supporting seats (36) are provided with two elastic sheets (37).

2. A tube press according to claim 1, characterised in that: The U-shaped frame (31) is provided with a first notch at the position of the concave block (32) for facilitating the reciprocating sliding of the U-shaped frame (31), the U-shaped frame (31) is provided with a second notch at the lower side of the first notch for facilitating the forward and backward sliding of the limiting seat (35), and the U-shaped frame (31) is provided with a third notch between the second notches for facilitating the upward and downward sliding of the supporting seat (36).

3. A tube press according to claim 1, wherein: The ends of the two concave blocks (32) close to each other are provided with arc notches for supporting the card nut.

4. A tube press according to claim 1, characterized in that: The sides of the limiting seats (35) close to the pressing seat (13) are provided with arc-shaped edges for facilitating the feeding of the card nut into the pipe, and the lower ends of the two limiting seats (35) are provided with inclined surfaces, and the sides of the supporting seats (36) in contact with the two inclined surfaces are provided with V-shaped grooves.

5. A tube press according to claim 1, characterized in that: The side of the positioning frame (21) close to the L-shaped frame (22) is fixedly provided with an inclined reinforcing plate, and the lower end of the reinforcing plate is fixedly connected with the end of the L-shaped frame (22) away from the positioning frame (21).

6. A tube press according to claim 1, characterized in that: The top of the workbench (11) is provided with two parallel guide rails, the two pipe supports (12) are slidably connected with the guide rails, and the pressing seat (13) is slidably connected with the guide rails.

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