A hydraulic hose stripping device

Abstract

The application discloses a stripping device for hydraulic rubber pipes, which comprises a horizontal base, a V-block clamping assembly, a quick dismounting positioning cylinder assembly and a variable-diameter centering column assembly which are sequentially arranged on the base, the V-block clamping assembly is used for clamping and fixing the rubber pipe, the quick dismounting positioning cylinder assembly is used for preliminarily positioning the rubber pipe, and the variable-diameter centering column assembly is used for inner diameter positioning of the rubber pipe. The application has the advantages that the variable-diameter centering column assembly and the quick dismounting positioning cylinder assembly are used for double-step positioning of the rubber pipe, the positioning mode is more reasonable and efficient, the V-block clamping assembly and the ball screw mechanism are used for realizing automatic feeding of the rubber pipe, and the operation is more convenient, time-saving and labor-saving, and the degree of automation is higher. The variable-diameter centering column assembly can be used for accurately positioning different types of rubber pipes, the equipment can be quickly and conveniently changed, different types of rubber pipes can be processed, and the cost is saved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic hose production equipment technology, and in particular to a hose stripping device. Background Technology

[0002] Hydraulic hoses consist of a hose and metal fittings at both ends. When assembling the hose and fittings, the hose ends need to be pre-treated with a stripper to create a stepped interface, as shown in the image. Figure 9 As shown, a crimping machine is then used to crimp the metal connector onto the stepped interface to form the finished hose. In existing technology, a stripping machine is typically used for the stripping operation. Currently, most stripping machines on the market include a center rod with a high-speed rotating stripping blade on the outside. During the stripping operation, the hose is manually held, aligned with the center rod, and pushed forward to insert the center rod into the hose, thus completing the positioning. Then, the motor is started to drive the stripping blade to rotate at high speed to perform the stripping operation. A common problem with this type of stripping machine is that: 1. Because the outer diameter of the center rod should be... 1. The size must be the same as, or even slightly larger than, the inner diameter of the hose to achieve the positioning function; otherwise, the hose will become eccentric during peeling, resulting in uneven peeling and defective hoses. Therefore, pushing the hose into the center rod for positioning involves high resistance and high labor intensity. 2. Hose manufacturers usually produce a variety of different hose models, and a single machine cannot peel different models of hoses. 3. The positioning of the center rod and hose is relatively precise, and the inner diameter of the hose is only about 20mm, making manual alignment difficult, time-consuming, and labor-intensive. 4. Existing hose peeling machines have limited functions and lack auxiliary functions such as debris collection and marking. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The purpose of this invention is to provide a stripping device for hydraulic hoses, so as to solve the technical problems of existing stripping machines being unable to adapt to the stripping of different types of hoses and the time-consuming and labor-intensive stripping operation.

[0005] (II) Technical Solution

[0006] The present invention discloses a hydraulic hose stripping device, comprising a horizontally arranged base. A V-block clamping assembly, a quick-release positioning cylinder assembly, and a variable-diameter centering column assembly are sequentially mounted on the base. The V-block clamping assembly clamps and fixes the hose. The quick-release positioning cylinder assembly performs initial diameter positioning of the hose. The variable-diameter centering column assembly positions the inner diameter of the hose. The V-block clamping assembly is driven by a ball screw mechanism, which drives the V-block clamping assembly to move. The ball screw mechanism is mounted on the base. The variable-diameter centering column assembly is driven by a drive assembly. A stripping blade assembly is mounted on the drive assembly. The stripping blade assembly strips the hose. The stripping blade assembly is located outside the variable-diameter centering column assembly. A vibration collecting trough assembly is located directly below the stripping blade assembly to collect stripping debris. The vibration collecting trough assembly is driven by the ball screw mechanism.

[0007] Furthermore, the variable-diameter centering column assembly includes a horizontally arranged centering column with a pointed conical end. A blind hole is formed at the initial end of the centering column, and a central rod is coaxially arranged within the blind hole. Several telescopic column assemblies are evenly distributed along the length of the central rod. Each telescopic column assembly includes several connecting columns evenly distributed along the circumference. The inner end of each connecting column is hinged to the central rod, and the outer end of each connecting column is hinged to the telescopic column. Several sliding holes are evenly distributed along the circumference of the central rod, and the telescopic columns are slidably connected to the sliding holes. A limiting plate is fixedly connected to the centering column, and a central hole is formed within the limiting plate. The central rod is slidably connected to the central hole and extends beyond the limiting plate. A set screw is installed on the limiting plate to fix the central rod. Specifically, a set screw hole is formed on the limiting plate, and a set screw is screwed into the set screw hole.

[0008] Furthermore, the end of the telescopic column is hemispherical.

[0009] Furthermore, the quick-release positioning cylinder assembly includes a stand, which is fixedly mounted on the base. A horizontal mounting through hole is provided on the stand, and a positioning cylinder is slidably inserted into the mounting through hole. A limit ring is fixedly provided at one end of the positioning cylinder. Two through slots are symmetrically provided on the outer circumference of the positioning cylinder, and a wedge plate is slidably inserted into the through slot. The end of the wedge plate is a wedge-shaped surface, and a spring rod is connected to the wedge plate. A spring groove is provided at the other end of the positioning cylinder, and the spring rod is slidably connected to the spring groove. A first compression spring is installed in the spring groove. The first compression spring is used to provide an outward elastic force to the spring rod. When the wedge plate contacts the end face of the base, the limit ring is in contact with the other end face of the base.

[0010] Furthermore, the V-block clamping assembly includes a pair of opposing V-shaped blocks, each of which is connected to the piston rod of a cylinder, and the cylinder is fixedly mounted on the machine base.

[0011] Furthermore, the ball screw mechanism includes a horizontally arranged screw, a sliding vertical plate is drivenly connected to the screw, the screw is rotatably connected to the machine base, the screw is drivenly connected to the first motor, the sliding vertical plate is fixedly installed on the cylinder, a sliding groove is provided on the machine base, and the sliding vertical plate is slidably connected to the sliding groove.

[0012] Furthermore, the vibration collection trough assembly includes a collection trough arranged at an inclined downward direction, one end of the collection trough being hinged to the machine base, a camshaft being arranged below the collection trough, one end of the camshaft being rotatably connected to the machine base, the other end of the machine base being connected to the lead screw, and a cam on the camshaft contacting the collection trough.

[0013] Furthermore, the drive assembly includes a first gear shaft rotatably connected to a bearing housing, a limiting disc coaxially connected to the first gear shaft, a through hole in the first gear shaft, a central rod extending through the through hole to the outside of the first gear shaft, the first gear shaft meshing with a second gear shaft, the second gear shaft rotatably connected to the bearing housing, and the second gear shaft being drive-connected to a second motor.

[0014] Furthermore, the adhesive peeling blade assembly includes a mounting block connected to the first gear shaft. An insertion groove is provided on the mounting block, and an adhesive peeling blade is slidably inserted into the insertion groove. A set screw is installed on the mounting block to fix the adhesive peeling blade.

[0015] Furthermore, an extension rod is connected to the upright frame, and a insertion hole is provided on the extension rod. A insertion cylinder is slidably inserted into the insertion hole. The set screw is installed on the extension rod to fix the insertion cylinder. The end of the insertion cylinder is tapered. A drawing pen is installed inside the insertion cylinder, and the tip of the drawing pen extends outside the insertion cylinder. A nut is screwed to the starting end of the insertion cylinder, and a second compression spring is fixedly connected to the nut. The other end of the second compression spring is in contact with the drawing pen.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this invention are as follows: This invention designs a variable diameter centering column assembly and a quick-release positioning cylinder assembly for dual stepwise positioning of the hose, making the positioning method more reasonable and efficient. It also designs a V-block clamping assembly and a ball screw mechanism to achieve automated hose feeding, making operation more convenient, faster, and more labor-saving, with a high degree of automation. The variable diameter centering column assembly can adapt to the precise positioning of different hose models, and the equipment can be changed quickly and conveniently, enabling the processing of different hose models and saving costs. While peeling the hose, a dedicated vibration collection tank assembly is designed to collect peeling debris, and a dedicated marking device is designed to mark the hose, making the functions of the hose peeler more unified and complete. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the working aspect of the present invention;

[0020] Figure 3 These are other perspective views of the present invention;

[0021] Figure 4 This is the front view of the present invention;

[0022] Figure 5 This is a cross-sectional view of the variable diameter centering column assembly;

[0023] Figure 6 for Figure 4 Sectional view along AA;

[0024] Figure 7 for Figure 1 A schematic diagram of the enlarged structure of part B;

[0025] Figure 8 for Figure 4 Sectional view along DD;

[0026] Figure 9 This is a schematic diagram of the peeling position of a hydraulic hose in the prior art;

[0027] In the diagram, the components are: 1. Base; 2. V-block; 3. Cylinder; 4. Slide groove; 5. Stand; 6. Positioning cylinder; 7. Limiting ring; 8. Mounting through hole; 9. Through groove; 10. Wedge plate; 11. Spring rod; 12. First compression spring; 13. Centering column; 14. Blind hole; 15. Slide hole; 16. Connecting column; 17. Telescopic column; 18. Limiting plate; 19. Center hole; 20. Set screw; 21. Bearing seat; 22. Mounting block; 23. Insertion groove; 24. Glue peeling blade; 25. Insertion hole; 26. Insertion cylinder; 27. Marking pen; 28. Nut; 29. ​​Second compression spring; 30. Collection groove; 31. Camshaft; 33. Sliding upright plate; 34. Lead screw; 35. First motor; 36. First gear shaft; 37. Second gear shaft; 38. Second motor; 39. Rubber hose; 40. Center rod. Detailed Implementation

[0028] Example 1

[0029] like Figures 1 to 3As shown, a hydraulic hose peeling device includes a horizontally arranged base 1, which can be designed as a box-like structure. A V-block clamping assembly, a quick-release positioning cylinder assembly, and a variable-diameter centering column assembly are sequentially installed on the base 1. These three components are coaxially arranged. The V-block clamping assembly is used to clamp and fix the hose 39. The quick-release positioning cylinder assembly is used for initial diameter positioning of the hose 39. The quick-release positioning cylinder assembly has a quick-disassembly and replacement function, thereby adapting to... For different models of hoses 39, the variable diameter centering column assembly is used to accurately position the inner diameter of the hose 39, thereby achieving precise peeling operation of the hose 39 (i.e., achieving consistent peeling thickness and preventing eccentricity). Simultaneously, the variable diameter centering column assembly has a variable diameter function, thus adapting to different models of hoses 39. The V-block clamping assembly is connected to a ball screw mechanism, which drives the V-block clamping assembly to move (i.e., achieves peeling feed). The ball screw mechanism is mounted on the machine base 1. The variable diameter centering column assembly is connected to the drive assembly. A peeling blade assembly is mounted on the drive assembly. This peeling blade assembly is used to peel the adhesive from the tubing 39. The peeling blade assembly is located outside the variable diameter centering column assembly. A vibration collection trough assembly is positioned directly below the peeling blade assembly. This vibration collection trough assembly is used to collect peeling debris and is connected to the ball screw mechanism. During operation, the tubing 39 is inserted into the V-block clamping assembly and the quick-release positioning cylinder assembly to achieve the desired effect. After initial positioning, the V-block clamping assembly is activated to clamp and fix the hose 39. The ball screw mechanism is then activated to drive the V-block clamping assembly to move the hose 39 forward, thereby allowing the variable diameter centering column assembly to be inserted into the hose 39 to achieve final precise positioning (at this time, the hose 39 has been cut with linear marks by the peeling knife assembly). Finally, the drive assembly is activated to rotate the peeling knife assembly to perform the peeling operation, and the ball screw mechanism is reversed to gradually withdraw the hose 39, thus completing the circumferential peeling of the hose 39. The peeled rubber debris falls into the vibration collection tank assembly and is discharged.

[0030] More specifically, such as Figure 1 , Figure 2 and Figure 5As shown, the variable diameter centering column assembly includes a horizontally arranged centering column 13, the end of which is tapered. A blind hole 14 is provided at the initial end of the centering column 13. A central rod 40 is coaxially arranged within the blind hole 14. Several telescopic column assemblies are evenly distributed along the length of the central rod 40. Each telescopic column assembly includes several connecting columns 16 evenly distributed along the circumferential direction. The inner end of each connecting column 16 is hinged to the central rod 40, and the outer end of each connecting column 16 is hinged to a telescopic column 17. Several sliding holes 15 are evenly distributed along the circumferential direction on the central rod 40. The telescopic columns 17 are slidably connected to the sliding holes 15. To precisely control the peeling length of the hose 39, a limiting plate 18 is fixedly connected to the centering column 13. A central hole 19 is provided within the limiting plate 18. The central rod 40 and the central hole 19 are connected... 9. A sliding connection is provided. The center rod 40 extends to the outside of the limiting plate 18. A set screw 20 is installed on the limiting plate 18. The set screw 20 is used to fix the center rod 40. Specifically, a set screw hole is provided on the limiting plate 18, and a set screw 20 is screwed into the set screw hole. In order to ensure that the variable diameter centering column assembly can be smoothly inserted into the hose 39, the end of the telescopic column 17 is hemispherical. When it is necessary to peel the hose 39 of different models, the set screw 20 can be loosened, and then the center rod 40 can be moved to adjust the extension length of the telescopic column 17, so as to adapt to hoses 39 with different inner diameters. When the variable diameter centering column assembly can be smoothly inserted into the hose 39, the hemispherical end of the telescopic column 17 contacts the inner wall of the hose 39, thereby achieving precise positioning of the hose 39. At the same time, it can resist the cutting force of the glue knife assembly and prevent the hose 39 from deforming, which would affect the peeling effect.

[0031] like Figure 1 picture, Figure 2 and Figure 6 As shown, the quick-release positioning cylinder assembly includes a stand 5, which is fixedly mounted on the base 1. A horizontal mounting through hole 8 is provided on the stand 5. A positioning cylinder 6 is slidably inserted into the mounting through hole 8. A limit ring 7 is fixedly provided at one end of the positioning cylinder 6. Two through grooves 9 are symmetrically provided on the outer circumference of the positioning cylinder 6. A wedge plate 10 is slidably inserted into the through groove 9. The end of the wedge plate 10 is a wedge-shaped surface. A spring rod 11 is connected to the wedge plate 10. A spring groove is provided at the other end of the positioning cylinder 6. The spring rod 11 is slidably connected to the spring groove. A first compression spring 12 is installed in the spring groove. The first compression spring 12 provides an outward elastic force to the spring rod 11. When it is necessary to replace the positioning cylinder 6 to accommodate different models of hoses 39, such as... Figure 6As shown, pressing the two spring rods 11 inwards will retract the wedge plate 10, allowing for quick disassembly of the positioning cylinder 6. When installing a new positioning cylinder 6, similarly, pressing the two spring rods 11 inwards will retract the wedge plate 10, and the positioning cylinder 6 will be inserted into the mounting through hole 8. When the end face of the limiting ring 7 is in contact with the upright frame 5, releasing the spring rods 11 will cause the wedge plate 10 to pop out, thus securing the wedge plate 10 onto the upright frame 5, completing the installation of the positioning cylinder 6.

[0032] like Figure 1 and Figure 2 As shown, the V-block clamping assembly includes a pair of opposing V-blocks 2, each of which is connected to the piston rod of a cylinder 3. The cylinder 3 is fixedly mounted on the base 1. In order to increase the insertion depth between the two V-blocks 2 and to better fix the hose 39, an avoidance slot can be designed on the V-blocks 2.

[0033] More specifically, such as Figure 3 As shown, the ball screw mechanism includes a horizontally arranged screw 34, a sliding vertical plate 33 is drivenly connected to the screw 34, the screw 34 is rotatably connected to the base 1, and the screw 34 is drivenly connected to the first motor 35. The sliding vertical plate 33 is fixedly installed on the cylinder 3. A sliding groove 4 is provided on the base 1, and the sliding vertical plate 33 is slidably connected to the sliding groove 4. The vibration collection tank assembly includes a downwardly inclined collection tank 30. One end of the collection tank 30 is hinged to the base 1. A camshaft 31 is provided below the collection tank 30. One end of the camshaft 31 is rotatably connected to the base 1, and the other end of the base 1 is connected to the screw 34. The cam on the camshaft 31 contacts the collection tank 30. In actual use, starting the first motor 35 can drive the sliding vertical plate 33 to move and drive the camshaft 31 to rotate, thereby driving the V-block clamping assembly to move and causing the collection tank 30 to vibrate up and down to quickly discharge the peeling debris.

[0034] like Figure 1 and Figure 2 As shown, the drive assembly includes a first gear shaft 36, which is rotatably connected to a bearing housing 21. The limiting disk 18 is coaxially connected to the first gear shaft 36. A through hole is provided on the first gear shaft 36, and the center rod 40 extends through the through hole to the outside of the first gear shaft 36. The first gear shaft 36 meshes with a second gear shaft 37, which is rotatably connected to the bearing housing 21. The second gear shaft 37 is driven by a second motor 38. During the peeling operation, the second motor 38 is started to drive the first gear shaft 36 and the second gear shaft 37 to rotate, thereby driving the variable diameter centering column assembly and the peeling knife assembly to rotate and perform the peeling operation.

[0035] Specifically, such as Figure 7 As shown, the peeling knife assembly includes a mounting block 22, which is connected to the first gear shaft 36. A insertion groove 23 is provided on the mounting block 22, and a peeling blade 24 is slidably inserted into the insertion groove 23. A set screw 20 is mounted on the mounting block 22 to fix the peeling blade 24. By adjusting the set screw 20, the extension length of the peeling blade 24 can be adjusted to accommodate different diameter rubber tubes 39. Different rubber tubes 39 have different peeling lengths. Similarly, the set screw mechanism described multiple times above can be used to adjust the extension length of the mounting block 22, which will not be elaborated further here. To increase the fastening performance of the set screw, the bottom of the set screw 20 can be roughened or have protruding spikes to increase friction.

[0036] Example 2

[0037] like Figure 2 , Figure 8 and Figure 9 As shown, since the purpose of peeling off the adhesive on the tubing 39 is to install the metal end at the peeled position, and the installation method of the metal end is mechanical crimping, in order to clearly check whether the metal end is crimped in place, it is necessary to draw a line mark on the tubing 39 (if the crimped end completely covers the line mark, it is installed in place; if the metal end does not completely cover the line mark, the installation is unqualified). Therefore, Example 2 designs a line marking device. The specific structure is that an extension rod is connected to the upright 5, and an insertion hole 25 is opened on the extension rod. An insertion cylinder 26 is slidably inserted into the insertion hole 25. The set screw 20 is installed on the extension rod. The set screw 20 is used to fix the insertion cylinder 26. The end of the insertion cylinder 26 is tapered, and a [missing information - likely a device or component] is installed inside the insertion cylinder 26. The drawing pen 27 can be any commercially available marker. The tip of the drawing pen 27 extends beyond the insertion tube 26. A nut 28 is screwed onto the starting end of the insertion tube 26, and a second compression spring 29 is fixedly connected to the nut 28. The other end of the second compression spring 29 is in contact with the drawing pen 27. In actual use, when the tubing 39 moves forward until it touches the limiting plate 18, the drawing pen 27 draws a horizontal marking line on the tubing 39. The extension length of the insertion tube 26 can be adjusted by adjusting the set screw 20 to accommodate tubing 39 of different diameters. Of course, the drawing position is different for different tubing 39. Similarly, the set screw mechanism described above can be used to adjust the extension length of the extension rod, which will not be repeated here.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for peeling off hydraulic hoses, characterized in that: It includes a horizontally arranged base, on which a V-block clamping assembly, a quick-release positioning cylinder assembly, and a variable-diameter centering column assembly are sequentially mounted. The V-block clamping assembly is used to clamp and fix the hose. The quick-release positioning cylinder assembly is used to perform initial diameter positioning of the hose. The variable-diameter centering column assembly is used to position the inner diameter of the hose. The V-block clamping assembly is driven by a ball screw mechanism, which drives the V-block clamping assembly to move. The ball screw mechanism is mounted on the base. The variable-diameter centering column assembly is driven by a drive assembly, on which a peeling knife assembly is mounted. A peeling blade assembly is used to peel the adhesive from the hose. The peeling blade assembly is located outside the variable diameter centering column assembly. A vibration collection trough assembly is positioned directly below the peeling blade assembly to collect peeling debris. The vibration collection trough assembly is connected to the ball screw mechanism. The quick-release positioning cylinder assembly includes a stand, which is fixedly mounted on the machine base. A horizontal mounting through hole is provided on the stand, and a positioning cylinder is slidably inserted into the mounting through hole. A limit ring is fixedly provided at one end of the positioning cylinder. Two through slots are symmetrically formed on the outer circumference of the positioning cylinder. A wedge-shaped plate is slidably inserted into the groove. The end of the wedge-shaped plate is wedge-shaped, and a spring rod is connected to the wedge-shaped plate. A spring groove is formed at the other end of the positioning cylinder, and the spring rod is slidably connected to the spring groove. A first compression spring is installed in the spring groove. The first compression spring provides an outward elastic force to the spring rod. When the wedge-shaped plate contacts the end face of the machine base, the limiting ring fits against the other end face of the machine base. The variable diameter centering column assembly includes a horizontally arranged centering column with a pointed conical end. A blind hole is formed at the initial end of the centering column, and a central rod is coaxially arranged in the blind hole. A plurality of telescopic column assemblies are evenly distributed along the length of the central rod. Each telescopic column assembly includes a plurality of connecting columns evenly distributed along the circumference. The inner end of each connecting column is hinged to the central rod, and the outer end of each connecting column is hinged to the telescopic column. A plurality of sliding holes are evenly distributed along the circumference of the central rod, and the telescopic columns are slidably connected to the sliding holes. A limiting plate is fixedly connected to the centering column, and a central hole is formed in the limiting plate. The central rod is slidably connected to the central hole and extends outside the limiting plate. A set screw is installed on the limiting plate to fix the central rod.

2. The hose stripping device according to claim 1, characterized in that: The end of the telescopic column is hemispherical.

3. The hose stripping device according to claim 1, characterized in that: The V-block clamping assembly includes a pair of opposing V-shaped blocks, each of which is connected to the piston rod of a cylinder, and the cylinder is fixedly mounted on the machine base.

4. The hose stripping device according to claim 3, characterized in that: The ball screw mechanism includes a horizontally arranged screw, a sliding vertical plate connected to the screw, the screw being rotatably connected to the machine base, the screw being connected to a first electric motor, the sliding vertical plate being fixedly mounted on the cylinder, and a sliding groove being provided on the machine base, with the sliding vertical plate slidably connected to the sliding groove.

5. The hose stripping device according to claim 4, characterized in that: The vibration collection trough assembly includes a collection trough that is inclined downwards. One end of the collection trough is hinged to the machine base. A camshaft is provided below the collection trough. One end of the camshaft is rotatably connected to the machine base. The other end of the machine base is connected to the lead screw. The cam on the camshaft contacts the collection trough.

6. The hose peeling device according to claim 1, characterized in that: The drive assembly includes a first gear shaft rotatably connected to a bearing housing, a limiting disc coaxially connected to the first gear shaft, a through hole in the first gear shaft, a central rod extending through the through hole to the outside of the first gear shaft, the first gear shaft meshing with a second gear shaft, the second gear shaft rotatably connected to the bearing housing, and the second gear shaft being drive-connected to a second motor.

7. The hose peeling device according to claim 6, characterized in that: The adhesive peeling blade assembly includes a mounting block connected to the first gear shaft. A insertion groove is provided on the mounting block, and an adhesive peeling blade is slidably inserted into the insertion groove. A set screw is installed on the mounting block to fix the adhesive peeling blade.

8. The hose peeling device according to claim 1, characterized in that: An extension rod is connected to the upright frame, and a insertion hole is provided on the extension rod. A insertion cylinder is slidably inserted into the insertion hole. A set screw is installed on the extension rod to fix the insertion cylinder. The end of the insertion cylinder is tapered. A drawing pen is installed inside the insertion cylinder, and the tip of the drawing pen extends outside the insertion cylinder. A nut is screwed to the starting end of the insertion cylinder, and a second compression spring is fixedly connected to the nut. The other end of the second compression spring is in contact with the drawing pen.

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