Hydraulic clamping device for spring sleeve machining

Abstract

The utility model discloses a hydraulic clamping device for spring sleeve machining, which belongs to the field of spring sleeve machining and comprises a workbench, a transverse plate is fixedly connected inside the workbench, and an end clamping mechanism is arranged on the upper side of the transverse plate. The end clamping mechanism comprises an air cylinder fixedly connected to the upper side of the transverse plate and two racks slidably connected to the upper side of the transverse plate, and an end tail clamping mechanism is arranged in the workbench and comprises a hydraulic cabin fixedly connected to the bottom end of the inner wall of the workbench. The end tail clamping mechanism is arranged, a push plate is pushed by an electric push rod to move in a hydraulic cabin, hydraulic oil enters a partial pressure cabin through a connecting pipeline and an extension pipeline, and a movable rod and an inner supporting plate are pushed outwards, so that the inner supporting plate is tightly attached to the inner wall of the end tail of the long spring sleeve, and the end tail of the long spring sleeve is fixed; and the situation that the long spring sleeve flies out to hurt workers during cutting is prevented, and the safety of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of spring sleeve processing, and more specifically to a hydraulic clamping device for processing a spring sleeve. Background Art

[0002] Spring sleeves are a type of mechanical part, usually used for shock absorption and buffering. The function of spring sleeves is to protect the spring from the influence of the external environment, and at the same time, it can also extend the service life of the spring. Spring sleeves are mostly cylindrical. Before they are put into use, they need to be changed in length using cutting equipment. During the cutting process, a clamping device is required to stably clamp the spring sleeve.

[0003] Chinese patent authorization announcement number: CN206241899U, provides a spring guide sleeve clamping mechanism, which includes a base plate, a clamping assembly, a pad, a chassis and a first screw: the clamping assembly includes a support frame, a positioning seat, a clamping shaft, a baffle, a second screw, a washer, a spring, a clamping block, a guide wheel, a third screw, a fourth screw and a fifth screw; when in use, pull the baffles on both sides, and then drive the clamping block to move outward through the clamping shaft. Since the two guide wheels are arranged on both sides of the clamping block, there is a supporting force under the clamping block, and the movement is smoother and not easy to get stuck; then place the workpiece on the chassis and put pads on both sides; then, remove the force on the baffle, and the clamping block is pushed inward by the elastic force of the spring, and finally presses against the pads on both sides of the workpiece to play a clamping role.

[0004] Although the utility model in the above patent is highly flexible and easy to operate, the contact area between the clamping assembly and the spring sleeve is small, and it can only clamp spring sleeves of shorter lengths. If the spring sleeve is longer, the unclamped end of the spring sleeve is prone to shaking during the cutting process, which may cause the spring sleeve to fly out and injure the staff, posing a safety hazard. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a hydraulic clamping device for processing a spring sleeve, which can prevent the spring sleeve from flying out and injuring workers, improve the clamping effect of the equipment and expand the clamping range of the equipment.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A hydraulic clamping device for processing a spring sleeve comprises a workbench, a horizontal plate is fixedly connected to the inside of the workbench, an end clamping mechanism is arranged on the upper side of the horizontal plate, the end clamping mechanism comprises a cylinder fixedly connected to the upper side of the horizontal plate and two racks slidably connected to the upper side of the horizontal plate, an end tail clamping mechanism is arranged inside the workbench, and the end tail clamping mechanism comprises a hydraulic cabin fixedly connected to the bottom end of the inner wall of the workbench.

[0010] Furthermore, the telescopic end of the cylinder is slidably connected to one end of one of the racks, the two racks are centrally symmetrically distributed on the upper side of the cross plate, a gear is meshed between the two racks, and the bottom of the gear is rotatably connected to the upper side of the cross plate.

[0011] Furthermore, the top ends of the two racks are fixedly connected with connecting plates, the two connecting plates are centrally symmetrically arranged, two slide grooves are penetrated through the top end of the workbench, and the two connecting plates are slidably connected to the two slide grooves respectively.

[0012] Furthermore, one end of the two connecting plates is fixedly connected to an outer clamping plate, and the two outer clamping plates are symmetrically arranged.

[0013] Furthermore, a push plate is slidably connected to the interior of the hydraulic cabin, an electric push rod is fixedly connected to one end of the hydraulic cabin, and a telescopic end of the electric push rod passes through one end of the hydraulic cabin and is fixedly connected to the push plate.

[0014] Furthermore, one end of the hydraulic cabin away from the electric push rod is fixedly connected with a connecting pipe, and the top end of the connecting pipe passes through the top end of the inner wall of the workbench and is threadedly connected with an extension pipe.

[0015] Furthermore, the top end of the extension pipe is fixedly connected to a pressure-dividing cabin, and at least four movable rods are slidably connected inside the pressure-dividing cabin.

[0016] Furthermore, one end of the movable rod is fixedly connected to an inner support plate.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This scheme sets up an end clamping mechanism, and uses an electric push rod to push the push plate to move inside the hydraulic chamber, so that the hydraulic oil enters the pressure-reducing chamber through the connecting pipe and the extension pipe, and pushes the movable rod and the inner support plate outward, so that the inner support plate is close to the inner wall of the end of the long spring sleeve, thereby fixing the end of the long spring sleeve, preventing the long spring sleeve from flying out and injuring workers during cutting, and improving the safety of the equipment.

[0020] (2) This solution sets up an end clamping mechanism and utilizes the cooperation between the cylinder, two racks and the gear to bring the two outer clamping plates closer to each other to clamp the end of the spring sleeve. In combination with the end tail clamping mechanism, the contact area between the device and the spring sleeve is further increased, so that the spring sleeve is clamped more firmly during the cutting process, thereby improving the clamping effect of the device on the spring sleeve.

[0021] (3) This solution facilitates the disassembly of the extension pipe by the workers through the threaded connection between the connecting pipe and the extension pipe, so that the equipment can adapt to the processing of spring sleeves of different lengths and expand the clamping range of the equipment. At the same time, the connecting pipe can also facilitate the workers to perform preliminary positioning and installation of the spring sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the workbench in the utility model after the side section;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the end clamping mechanism in the utility model;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the hydraulic cabin of the utility model after the side section;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model after the side section of the ballast cabin.

[0027] Description of the numbers in the figure:

[0028] 1. Workbench; 11. Horizontal board; 12. Slide; 21. Cylinder; 22. Rack; 23. Gear; 24. Connecting plate; 25. Outer clamp; 31. Hydraulic chamber; 32. Push plate; 33. Electric push rod; 34. Connecting pipe; 35. Extension pipe; 36. Pressure chamber; 37. Movable rod; 38. Inner support plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Embodiment 1:

[0033] See also Figure 1 one Figure 3 A hydraulic clamping device for processing a spring sleeve includes a workbench 1, a horizontal plate 11 is fixedly connected to the inside of the workbench 1, an end clamping mechanism is arranged on the upper side of the horizontal plate 11, and the end clamping mechanism includes a cylinder 21 fixedly connected to the upper side of the horizontal plate 11 and two racks 22 slidably connected to the upper side of the horizontal plate 11.

[0034] The telescopic end of the cylinder 21 is slidably connected to one end of one of the racks 22 . The two racks 22 are centrally symmetrically distributed on the upper side of the cross plate 11 . A gear 23 is meshed between the two racks 22 . The bottom of the gear 23 is rotatably connected to the upper side of the cross plate 11 .

[0035] The top ends of the two racks 22 are fixedly connected with connecting plates 24 , and the two connecting plates 24 are centrally symmetrically arranged. Two slide grooves 12 are formed through the top end of the workbench 1 , and the two connecting plates 24 are slidably connected to the two slide grooves 12 , respectively.

[0036] One end of the two connecting plates 24 is fixedly connected to an outer clamping plate 25 , and the two outer clamping plates 25 are symmetrically arranged.

[0037] The specific implementation process of this embodiment is as follows: the two racks 22 are centrally symmetrically arranged on both sides of the gear 23, and the cylinder 21 is used to push the rack 22 connected to it forward or backward, so that the two racks 22 move closer to or away from each other through the gear 23, thereby achieving the clamping and loosening of the spring sleeve, and the outer clamping plate 25 is arc-shaped, which can increase the contact area between the end clamping mechanism and the outside of the spring sleeve, so that the device can clamp the spring sleeve more firmly.

[0038] Embodiment 2:

[0039] See also Figure 1 one Figure 5 An end-tail clamping mechanism is arranged inside the workbench 1 , and the end-tail clamping mechanism includes a hydraulic cabin 31 fixedly connected to the bottom end of the inner wall of the workbench 1 .

[0040] A push plate 32 is slidably connected inside the hydraulic cabin 31 , an electric push rod 33 is fixedly connected to one end of the hydraulic cabin 31 , and a telescopic end of the electric push rod 33 passes through one end of the hydraulic cabin 31 and is fixedly connected to the push plate 32 .

[0041] One end of the hydraulic chamber 31 away from the electric push rod 33 is fixedly connected with a connecting pipe 34 , and the top end of the connecting pipe 34 passes through the inner wall of the workbench 1 and is threadedly connected with an extension pipe 35 .

[0042] The top end of the extension pipe 35 is fixedly connected to a pressure-dividing cabin 36 , and at least four movable rods 37 are slidably connected inside the pressure-dividing cabin 36 .

[0043] One end of the movable rod 37 is fixedly connected to an inner support plate 38 .

[0044] The specific implementation process of this embodiment is as follows: seals are installed between each component inside the end clamping mechanism to prevent hydraulic oil leakage. The part of the connecting pipe 34 located above the workbench 1 is a straight pipe. The spring sleeve can be sleeved on the straight pipe part above the connecting pipe 34 and the extension pipe 35 before processing to perform preliminary positioning and fixing of the spring sleeve. The threaded connection between the connecting pipe 34 and the extension pipe 35 can be easily disassembled to adapt to the processing of spring sleeves of different lengths. Hydraulic oil is stored in the hydraulic chamber 31. The electric push rod 33 pushes the push plate 32 to push the push plate 32. It moves in the hydraulic cabin 31 to control the hydraulic pressure inside the hydraulic cabin 31. There are four branch pipes inside the pressure-dividing cabin 36. Four movable rods 37 are slidably connected in the four branch pipes respectively. When the hydraulic pressure inside the hydraulic cabin 31 increases, the hydraulic oil will enter the pressure-dividing cabin 36 to push the movable rod 37 outward, and then the inner support plate 38 is pushed outward to fit tightly against the inner wall of the spring sleeve, thereby achieving the effect of fixing the end of the spring sleeve by means of internal support, which can avoid the occurrence of violent shaking of the end when cutting the long spring sleeve, thereby reducing the safety hazard of the equipment.

[0045] The working principle of the utility model is as follows: when cutting the short spring sleeve, the staff manually unscrews the extension pipe 35 from the connecting pipe 34, then sleeves the short spring sleeve on the connecting pipe 34, and turns on the cylinder 21, the cylinder 21 and the gear 23 make the two racks 22 approach each other, so that the two outer clamping plates 25 gradually approach the short spring sleeve and finally clamp it;

[0046] When cutting the long spring sleeve, the staff will reinstall the extension pipe 35 onto the connecting pipe 34, and connect the long spring sleeve over the two, then turn on the cylinder 21, the end clamping mechanism will clamp the end of the long spring sleeve, and then turn on the electric push rod 33, the electric push rod 33 pushes the push plate 32 to move in the hydraulic cabin 31, thereby increasing the hydraulic pressure inside the hydraulic cabin 31, the hydraulic oil enters the connecting pipe 34 and the extension pipe 35, and finally enters the pressure reducing cabin 36, the hydraulic oil pushes the four movable rods 37 outward, so that the inner support plate 38 is close to the inner wall of the long spring sleeve, achieving the effect of fixing the end of the spring sleeve by means of internal support.

[0047] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A hydraulic clamping device for processing a spring sleeve, comprising a workbench (1), Features: A transverse plate (11) is fixedly connected to the interior of the workbench (1), and an end clamping mechanism is arranged on the upper side of the transverse plate (11). The end clamping mechanism comprises a cylinder (21) fixedly connected to the upper side of the transverse plate (11) and two racks (22) slidably connected to the upper side of the transverse plate (11). An end tail clamping mechanism is arranged inside the workbench (1), and the end tail clamping mechanism comprises a hydraulic chamber (31) fixedly connected to the bottom end of the inner wall of the workbench (1).

2. A hydraulic clamping device for processing a spring sleeve according to claim 1, Features: The telescopic end of the cylinder (21) is slidably connected to one end of one of the racks (22); the two racks (22) are centrally symmetrically distributed on the upper side of the transverse plate (11); a gear (23) is meshed between the two racks (22); and the bottom of the gear (23) is rotatably connected to the upper side of the transverse plate (11).

3. A hydraulic clamping device for processing a spring sleeve according to claim 2, Features: The top ends of the two racks (22) are fixedly connected with a connecting plate (24), the two connecting plates (24) are centrally symmetrically arranged, the top end of the workbench (1) is penetrated by two sliding grooves (12), and the two connecting plates (24) are respectively slidably connected to the two sliding grooves (12).

4. A hydraulic clamping device for processing a spring sleeve according to claim 3, Features: One end of each of the two connecting plates (24) is fixedly connected to an outer clamping plate (25), and the two outer clamping plates (25) are symmetrically arranged.

5. A hydraulic clamping device for processing a spring sleeve according to claim 1, Features: A push plate (32) is slidably connected inside the hydraulic cabin (31), an electric push rod (33) is fixedly connected to one end of the hydraulic cabin (31), and a telescopic end of the electric push rod (33) passes through one end of the hydraulic cabin (31) and is fixedly connected to the push plate (32).

6. A hydraulic clamping device for processing a spring sleeve according to claim 5, Features: One end of the hydraulic chamber (31) away from the electric push rod (33) is fixedly connected to a connecting pipe (34), and the top end of the connecting pipe (34) passes through the inner wall of the workbench (1) and is threadedly connected to an extension pipe (35).

7. A hydraulic clamping device for processing a spring sleeve according to claim 6, Features: The top end of the extension pipe (35) is fixedly connected to a pressure-dividing cabin (36), and at least four movable rods (37) are slidably connected inside the pressure-dividing cabin (36).

8. A hydraulic clamping device for processing a spring sleeve according to claim 7, Features: One end of the movable rod (37) is fixedly connected to an inner support plate (38).

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