Fixing structure for secondary positioning air cylinder of chamfering machine

Abstract

The utility model provides a fixing structure for a secondary positioning cylinder of a chamfering machine, which belongs to the field of metal processing equipment and comprises a positioning cylinder and a fixing seat fixedly mounted on a telescopic rod of the positioning cylinder. A second threaded hole which is the same as the first threaded hole in diameter and coaxial with the first threaded hole is formed in the side face of the fixing base, a reinforcing bolt is installed on the second threaded hole in a threaded connection mode, and the tail of the reinforcing bolt is in threaded connection with the first threaded hole. And then the telescopic rod and the fixing seat are transversely connected through the reinforcing bolt, longitudinal and transverse fixed connection is combined, the connecting strength and the stability degree of the telescopic rod and the fixing seat can be improved, and the probability of loosening and shaking is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of metal processing equipment, and in particular relates to a fixing structure for a secondary positioning cylinder of a chamfering machine. Background Technology

[0002] Beveling of metal pipes involves using a beveling machine to process the ends of the pipes, creating a bevel with a specific angle and smoothness. This process not only improves the aesthetics of the metal pipes but also enhances their performance and safety. During the beveling process, the angle and depth of the beveling must be strictly controlled to ensure the desired effect. Therefore, the beveling process first uses a clamp to hold and fix the pipe and move it to the corresponding processing position. Then, a positioning cylinder is used for a second fixation before the beveling is performed. However, the current connection structure of the positioning cylinder is prone to loosening and wobbling, affecting the fixing effect and consequently the processing quality. Summary of the Invention

[0003] Based on the aforementioned problems in the existing technology, this utility model provides a fixing structure for a secondary positioning cylinder of a chamfering machine, including a positioning cylinder and a fixing seat fixedly installed on the telescopic rod of the positioning cylinder. A first threaded hole is provided on the end of the telescopic rod extending radially. A second threaded hole with the same diameter as the first threaded hole and coaxially arranged is provided on the side of the fixing seat. A reinforcing bolt is installed on the second threaded hole by threaded connection, and the tail of the reinforcing bolt is threaded to the first threaded hole.

[0004] The first threaded hole extends from the side of the telescopic rod to the axis of the telescopic rod.

[0005] The fixing base includes a mounting bracket and a pressure base. The mounting bracket has a right-angled cross-section, with one right-angled side facing horizontally and fixedly connected to the end of the telescopic rod. The second threaded hole is located on the side of the mounting bracket closest to the telescopic rod. The pressure base is fixedly installed on the other right-angled side of the mounting bracket, and the bottom of the pressure base has a pressure groove that matches the metal pipe.

[0006] The pressure base includes a first clamping plate, an elastic pressure block, and a second clamping plate. The first clamping plate is fixedly installed on the mounting frame, and the second clamping plate is fixedly installed on the other side of the first clamping plate opposite to the mounting frame. A clamping groove is formed between the first clamping plate and the second clamping plate. The elastic pressure block is clamped and fixedly installed in the clamping groove. The pressure groove passes through the first clamping plate, the elastic pressure block, and the second clamping plate.

[0007] The first clamping plate and the second clamping plate are provided with the same arc-shaped groove at their bottoms, and the arc-shaped grooves of the first clamping plate and the second clamping plate overlap. The diameter of the arc-shaped groove matches the diameter of the metal pipe. The bottom of the elastic pressure block is provided with a channel. The channel and the arc-shaped groove are coaxially arranged, and the diameter of the channel is smaller than that of the arc-shaped groove. The channel and the arc-shaped groove cooperate to form a pressure groove.

[0008] The lower opening of the arc-shaped groove has two outwardly inclined first guide slopes on both sides, and the lower opening of the channel has two outwardly inclined second guide slopes on both sides, with the slope of the first guide slope being greater than that of the second guide slope.

[0009] The positioning cylinder has a stabilizing plate fixedly installed at one end, and a guide optical axis parallel to the telescopic rod is fixedly installed on the fixed base. The guide optical axis and the stabilizing plate are slidably connected.

[0010] A limiting block is fixedly installed at the end of the guide optical axis away from the fixed base, and the limiting block and the stabilizing plate contact each other to limit the stroke of the guide optical axis.

[0011] The beneficial effects of this utility model are as follows: Threaded holes are coaxially provided on the telescopic rod and the fixed seat, and reinforcing bolts perpendicular to the telescopic rod are then installed through these threaded holes. First, the telescopic rod and the fixed seat are longitudinally fixedly connected, and then the reinforcing bolts are used for lateral connection, achieving a combined longitudinal and lateral fixed connection. This improves the connection strength and stability of the telescopic rod and the fixed seat, reducing the probability of loosening and wobbling. Furthermore, the pressure seat, composed of the first clamping plate, the elastic pressure block, and the second clamping plate, has both soft and hard extrusion parts. This combination of soft and hard materials enhances the extrusion and fixing effect, ensuring the quality of the chamfering process and facilitating the replacement of the elastic pressure block, thus reducing maintenance costs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the fixed structure of a secondary positioning cylinder for a chamfering machine.

[0013] Figure 2 yes Figure 1 A magnified view of point A.

[0014] Figure 3 This is a three-dimensional structural diagram of the fixed structure of the secondary positioning cylinder of a chamfering machine from another angle.

[0015] Figure 4 This is a front view of the fixed structure of a secondary positioning cylinder for a chamfering machine.

[0016] Figure 5 This is a cross-sectional schematic diagram of the fixing structure of a secondary positioning cylinder for a chamfering machine.

[0017] Figure 6 yes Figure 5 Enlarged view of point B.

[0018] Figure 7 This is an exploded structural diagram of the fixed structure of a secondary positioning cylinder for a chamfering machine.

[0019] Figure 8 yes Figure 7 Enlarged view of point C. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] As attached Figure 1-8 The diagram illustrates a fixing structure for a secondary positioning cylinder of a chamfering machine. It includes a positioning cylinder 1 and a fixing seat 3 fixedly mounted on a telescopic rod 2 of the positioning cylinder 1. The fixing seat 3 includes a mounting frame 4 and a pressure seat 5. The mounting frame 4 has a right-angled cross-section, with one right-angled side facing horizontally. Two mounting holes are provided on this surface. The end of the telescopic rod 2 passes through one of the mounting holes and is clamped and fixed to the mounting frame 4 with a nut. A first threaded hole 6 is provided radially at the end of the telescopic rod 2 corresponding to the mounting frame 4. Hole 6 extends from the side of telescopic rod 2 to the axis of telescopic rod 2. A second threaded hole 7, coaxially arranged with the same diameter as the first threaded hole 6, is provided on the side of the mounting bracket 4 closest to the telescopic rod 2. The second threaded hole 7 connects to the mounting hole where the telescopic rod 2 is installed. A reinforcing bolt 8 is threadedly installed on the second threaded hole 7, and the tail of the reinforcing bolt 8 is threadedly connected to the first threaded hole 6. The pressure seat 5 is fixedly installed on the surface corresponding to the other right-angle side of the mounting bracket 4. The bottom of the pressure seat 5 is provided with a pressure groove 9 that matches the metal pipe. A stabilizing plate 10 is fixedly installed at one end of the positioning cylinder 1 by bolts. A guide optical shaft 11 parallel to the telescopic rod 2 is fixedly installed on the other mounting hole of the mounting bracket 4 of the fixing seat 3 by a nut. The guide optical shaft 11 and the stabilizing plate 10 are slidably connected, which can improve the sliding stability of the fixing seat 3. A limit block 12 is fixedly installed at the end of the guide optical shaft 11 away from the fixing seat 3. The limit block 12 and the stabilizing plate 10 contact and cooperate to limit the stroke of the guide optical shaft 11.

[0022] In a preferred embodiment, the pressure base 5 includes a first clamping plate 13, an elastic pressure block 14, and a second clamping plate 15. The first clamping plate 13 is fixedly installed on the mounting frame 4, and the second clamping plate 15 is fixedly installed on the other side of the first clamping plate 13 opposite to the mounting frame 4. A clamping groove is formed between the first clamping plate 13 and the second clamping plate 15. The elastic pressure block 14 is clamped and fixedly installed in the clamping groove. The bottom of both the first clamping plate 13 and the second clamping plate 15 is provided with the same arc-shaped groove 16. The arc-shaped groove 16 of the 5 overlaps, and the diameter of the arc-shaped groove 16 matches the diameter of the metal pipe; the bottom of the elastic pressure block 14 is provided with a channel 17, which is coaxially arranged with the arc-shaped groove 16, and the diameter of the channel 17 is smaller than that of the arc-shaped groove 16. The channel 17 and the arc-shaped groove 16 cooperate to form a pressure groove 9, which passes through the first clamping plate 13, the elastic pressure block 14 and the second clamping plate 15. The combination of soft and hard can improve the squeezing and fixing effect. When the elastic pressure block 14 is severely worn, it can be removed and replaced. The lower opening of the arc-shaped groove 16 has two outwardly inclined first guide slopes 18 on both sides, and the lower opening of the channel 17 has two outwardly inclined second guide slopes 19 on both sides. The slope of the first guide slope 18 is greater than that of the second guide slope 19. The arrangement of the first guide slope 18 and the second guide slope 19 forms a gradually increasing horn-shaped inlet, which facilitates the entry of the metal pipe into the pressure groove 9. Moreover, the setting that the slope of the first guide slope 18 is greater than that of the second guide slope 19 can be buffered by the elastic pressure block 14 to avoid direct collision and contact between the first clamping plate 13 and the second clamping plate 15 and the metal pipe, which would cause damage to both.

[0023] The fixing structure provided in this embodiment is used for secondary fixing of the chamfering machine. First, the chamfering machine's fixture clamps and fixes the metal tube to be processed and moves the metal tube to the processing position. Then, the positioning cylinder 1 is activated to drive the fixing seat 3 to approach the metal tube and bring the metal tube into the pressure groove 9, so that the metal tube is squeezed and fixed by the fixing seat 3. This can prevent the metal tube from shifting during chamfering and affecting the chamfering quality. The telescopic rod 2 and the fixing seat 3 have longitudinal and transverse fixed connections, which improves the structural strength, makes it less prone to loosening, and gives the equipment better stability.

[0024] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixing structure for a secondary positioning cylinder of a chamfering machine, comprising a positioning cylinder (1) and a fixing seat (3) fixedly mounted on a telescopic rod (2) of the positioning cylinder (1), characterized in that, The telescopic rod (2) has a first threaded hole (6) extending radially at its end. The fixed base (3) has a second threaded hole (7) with the same diameter as the first threaded hole (6) and coaxially arranged on its side. A reinforcing bolt (8) is installed on the second threaded hole (7) by threaded connection. The tail of the reinforcing bolt (8) is threaded to the first threaded hole (6).

2. The fixing structure of the secondary positioning cylinder of the chamfering machine according to claim 1, characterized in that, The first threaded hole (6) extends from the side of the telescopic rod (2) to the axis of the telescopic rod (2).

3. The fixing structure of the secondary positioning cylinder of the chamfering machine according to claim 2, characterized in that, The fixed base (3) includes a mounting bracket (4) and a pressure base (5). The mounting bracket (4) has a right-angled cross section, with one right-angled side facing horizontally and fixedly connected to the end of the telescopic rod (2). The second threaded hole (7) is located on the side of the mounting bracket (4) closest to the telescopic rod (2). The pressure base (5) is fixedly installed on the other right-angled side of the mounting bracket (4). The bottom of the pressure base (5) is provided with a pressure groove (9) that matches the metal pipe.

4. The fixing structure of the secondary positioning cylinder of the chamfering machine according to claim 3, characterized in that, The pressure seat (5) includes a first clamping plate (13), an elastic pressure block (14), and a second clamping plate (15). The first clamping plate (13) is fixedly installed on the mounting frame (4), and the second clamping plate (15) is fixedly installed on the other side of the first clamping plate (13) opposite to the mounting frame (4). A clamping groove is formed between the first clamping plate (13) and the second clamping plate (15). The elastic pressure block (14) is clamped and fixedly installed in the clamping groove. The pressure groove (9) passes through the first clamping plate (13), the elastic pressure block (14), and the second clamping plate (15).

5. The fixing structure of the secondary positioning cylinder of the chamfering machine according to claim 4, characterized in that, The bottom of the first clamping plate (13) and the second clamping plate (15) are provided with the same arc-shaped groove (16), and the arc-shaped groove (16) of the first clamping plate (13) and the second clamping plate (15) overlap. The diameter of the arc-shaped groove (16) matches the diameter of the metal pipe. The bottom of the elastic pressure block (14) is provided with a channel (17). The channel (17) and the arc-shaped groove (16) are coaxially arranged, and the diameter of the channel (17) is smaller than that of the arc-shaped groove (16). The channel (17) and the arc-shaped groove (16) cooperate to form a pressure groove (9).

6. The fixing structure of the secondary positioning cylinder of the chamfering machine according to claim 5, characterized in that, The lower opening of the arc groove (16) has two outwardly inclined first guide slopes (18) on both sides, and the lower opening of the channel (17) has two outwardly inclined second guide slopes (19) on both sides. The slope of the first guide slope (18) is greater than that of the second guide slope (19).

7. The fixing structure of the secondary positioning cylinder of a chamfering machine according to any one of claims 1-6, characterized in that, A stabilizing plate (10) is fixedly installed at one end of the positioning cylinder (1), and a guide optical axis (11) parallel to the telescopic rod (2) is fixedly installed on the fixed seat (3). The guide optical axis (11) and the stabilizing plate (10) are slidably connected.

8. The fixing structure of the secondary positioning cylinder of the chamfering machine according to claim 7, characterized in that, A limiting block (12) is fixedly installed at one end of the guide optical axis (11) away from the fixed seat (3). The limiting block (12) and the stabilizing plate (10) make contact and cooperate to limit the travel of the guide optical axis (11).

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