Tooling for turning compressor valve plates

Abstract

The present invention relates to the technical field of valve plate turning tooling production, and specifically to a tooling for turning compressor valve plates, comprising two groups of connecting shafts, a plurality of groups of limiting cavities are opened in the outer sides of the connecting shafts, a T-shaped support rod is movably connected in the limiting cavity, the T-shaped support rod extends into the external environment at one end away from the limiting cavity, and is fixedly connected to a first arc plate, and a second arc plate is movably connected in both ends of the first arc plate; according to the size of the valve plate to be processed, a plurality of groups of first arc plates and a plurality of groups of second arc plates are adjusted to a position equal to the diameter of the valve plate, and a plurality of groups of first arc plates and a plurality of second arc plates will move with the tool, so that a certain distance is always maintained between the tool and the first arc plate and the second arc plate, and at the same time, a plurality of groups of clamping rollers and clamping balls will always clamp the valve plate to prevent the valve plate from shaking during the cutting process.

Description

Technical Field

[0001] The invention relates to the technical field of valve plate turning tooling, in particular to a tooling for turning a compressor valve plate. Background Art

[0002] The compressor valve plate is a component of the compressor. The compressor can be classified into refrigerator compressors, air-conditioning compressors, gas compressors, and refrigeration compressors. Most compressors play a refrigeration role, and only gas compressors are used for special gas compression. The quality of the compressor valve plate and the accuracy of the valve plate directly affect the life of the compressor and the refrigeration effect; such as the Chinese patent with announcement number CN109048441A, which discloses a vibration-proof tooling for turning valve plates, which can achieve reliable fixation of the valve plate, reduce vibration, and ensure processing quality. It includes a valve plate clamping device, characterized in that the valve plate clamping device includes a front axle clamping body and a rear axle clamping body, and at least two adjustable ball head pins are respectively installed on the inner side surfaces of the rear axle clamping body corresponding to the front axle clamping body.

[0003] However, the above scheme has the following shortcomings: in the above patent, the valve plate is clamped between the front axle clamping body and the rear axle clamping body, the positioning bushing is used for positioning, and the front and back sides of the valve plate are pressed by the ball head pin, so that the valve plate can be reliably fixed, but this method can only clamp valve plates of fixed size. For large-sized valve plates, since the clamping point cannot be adjusted, the clamping point is located on the inner side of the valve plate. When the tool clamps the valve plate, the valve plate being cut may shake, resulting in the tool being unable to cut the valve plate. For small-sized valve plates, they cannot be clamped. For this reason, we have introduced a tool for turning compressor valve plates. Summary of the invention

[0004] The object of the present invention is to provide a tool for turning a compressor valve sheet to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A tool for turning a compressor valve plate, comprising two groups of connecting shafts, a plurality of groups of limiting cavities are opened in the outer side of the connecting shaft, a T-shaped support rod is movably connected in the limiting cavity, the T-shaped support rod extends into the external environment at one end away from the limiting cavity and is fixedly connected to a first arc plate, a second arc plate is movably connected in both ends of the first arc plate, two groups of the second arc plates are movably connected to another group of the first arc plates at one end away from the first arc plate, a clamping roller is movably connected in one end of the first arc plate, a plurality of groups of clamping balls are movably connected in one end of the second arc plate, the limiting cavity is connected to two groups of liquid guide cavities, and the liquid guide cavity is opened in the connecting shaft;

[0007] The end of the liquid guiding cavity away from the limiting cavity is connected to the annular cavity, the annular cavity is opened on the outer side of the connecting shaft, a retaining ring is movably connected in the annular cavity, hydraulic oil is arranged in the annular cavity, the retaining ring is connected to a liquid pushing mechanism, and by connecting the liquid pushing mechanism to the tool holder, when the tool holder moves, the liquid pushing mechanism is driven to inject hydraulic oil into the annular cavity, and the hydraulic oil enters the limiting cavity to drive the T-shaped support rod to move inward, so that the first arc plate connected thereto moves inward.

[0008] Preferably, both ends of the first arc plate are provided with limiting grooves, the second arc plate is slidably connected to the limiting grooves, a connecting spring is fixedly connected in the limiting grooves, and the other end of the connecting spring is fixedly connected to the second arc plate.

[0009] Preferably, the hydraulic pushing mechanism includes a hydraulic pipe, which is fixedly connected to the baffle ring, hydraulic oil is provided in the hydraulic pipe, a push plate is slidably connected in the hydraulic pipe, the push plate is fixedly connected to a T-type push rod at one end away from the baffle ring, the T-type push rod is movably connected in the hydraulic pipe, the T-type push rod is movably connected in the connecting pipe at one end away from the push plate, and the connecting pipe is movably connected in the connecting rod at one end away from the T-type push rod.

[0010] Preferably, the hydraulic pipe is movably connected to an adjusting screw at one end away from the retaining ring, and the upper and lower ends of the connecting pipe are provided with sliding grooves, and the two sets of sliding grooves are movably connected to adjusting bolts.

[0011] Preferably, one end of the connecting shaft on the left side is fixedly connected to a connecting disk, and a plurality of sets of fixing screws are fixedly connected inside the connecting disk, and one end of the connecting shaft on the right side is fixedly connected to a tail handle.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: according to the size of the valve plate to be processed, several groups of first arc plates and several groups of second arc plates are adjusted to a position equal to the diameter of the valve plate, and the valve plate is clamped by the clamping roller in the first arc plate and several groups of second balls in the second arc plate, so that valve plates of different sizes can be clamped, and at the same time, by adjusting the liquid pushing mechanism, when the tool is cutting the valve plate, several groups of first arc plates and second arc plates will move with the tool, so that a certain distance is always maintained between the tool and the first arc plate and the second arc plate, and at the same time, several groups of clamping rollers and clamping balls will always clamp the valve plate to prevent the valve plate from shaking during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the connection relationship between the connecting shaft and the T-shaped support rod of the present invention;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 3 It is a schematic diagram of the side section structure of the present invention;

[0016] Figure 4 This is a schematic cross-sectional view of the connection relationship between the liquid guiding cavity and the limiting cavity of the present invention;

[0017] Figure 5 It is a schematic diagram of the structure of the valve plate clamping state of the present invention.

[0018] In the figure: 1. connecting shaft; 2. retaining ring; 3. clamping roller; 4. first arc plate; 5. T-shaped support rod; 6. tail handle; 7. hydraulic pipe; 8. T-shaped push rod; 9. adjusting screw; 10. slide groove; 11. connecting pipe; 12. connecting rod; 13. fixing screw; 14. connecting plate; 15. tool holder; 16. adjusting bolt; 17. valve plate; 18. limiting groove; 19. connecting spring; 20. second arc plate; 21. clamping ball; 22. limiting cavity; 23. liquid guide cavity; 24. push plate; 25. annular cavity. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 , the present invention provides a technical solution:

[0021] Embodiment 1:

[0022] A tool for turning a compressor valve plate, comprising two groups of connecting shafts 1, a plurality of groups of limiting cavities 22 are opened in the outer side of the connecting shaft 1, a T-shaped support rod 5 is movably connected in the limiting cavity 22, the end of the T-shaped support rod 5 away from the limiting cavity 22 extends into the external environment, and is fixedly connected to the first arc plate 4, and the second arc plates 20 are movably connected in both ends of the first arc plate 4, and the two groups of second arc plates 20 are movably connected to the other group of first arc plates 4 at one end away from the first arc plate 4, and the hydraulic oil entering the annular cavity 25 enters the limiting cavity 22 through the liquid guide cavity 23, and pushes the T-shaped support rod 5 to move inward along the limiting cavity 22, and the movement of the T-shaped support rod 5 drives the first arc plate 4 to move, and when the plurality of groups of first arc plates 4 move, they will drive the plurality of groups of second arc plates 20 connected thereto to move synchronously, and the second arc plates 20 will move inward along the limiting groove 18, so that the connecting spring 19 is compressed;

[0023] A clamping roller 3 is movably connected in one end of the first curved plate 4, and a plurality of clamping balls 21 are movably connected in one end of the second curved plate 20. The limiting cavity 22 is connected to the two groups of liquid guiding cavities 23. The liquid guiding cavity 23 is opened in the connecting shaft 1. The valve plate 17 is clamped between the plurality of first curved plates 4 by moving the tailstock of the lathe. The clamping roller 3 in the first curved plate 4 and the plurality of clamping balls 21 in the second curved plate 20 clamp the valve plate 17. During the movement of the first curved plate 4 and the second curved plate 20, the clamping roller 3 in the first curved plate 4 and the plurality of clamping balls 21 connected to the outside of the second curved plate 20 move along the surface of the valve plate 17, so that when the tool processes the outer diameter of the valve plate 17, the first curved plate 4 always keeps a certain distance from the tool.

[0024] One end of the liquid guiding cavity 23 away from the limiting cavity 22 is connected to the annular cavity 25. The annular cavity 25 is arranged inside the outer side of the connecting shaft 1. The retaining ring 2 is movably connected inside the annular cavity 25. During the rotation of the connecting shaft 1, the retaining ring 2 will move along the annular cavity 25. Hydraulic oil is arranged inside the annular cavity 25. The retaining ring 2 is connected to a liquid pushing mechanism. By connecting the liquid pushing mechanism to the tool holder 15, the liquid pushing mechanism is driven to inject hydraulic oil into the annular cavity 25 when the tool holder 15 moves. The hydraulic oil enters the limiting cavity 22 and drives the T-shaped support rod 5 to move inward, so that the first arc plate 4 connected thereto moves inward.

[0025] Embodiment 2:

[0026] On the basis of Example 1, in order to ensure that the tool can always maintain a certain distance from the first curved plate 4 when processing the outer diameter of the valve plate 17, limiting grooves 18 are provided at both ends of the first curved plate 4, and the second curved plate 20 is slidably connected to the limiting grooves 18. A connecting spring 19 is fixedly connected in the limiting grooves 18, and the other end of the connecting spring 19 is fixedly connected to the second curved plate 20. Grooves are provided on both sides of the second curved plate 20. Through the setting of the grooves, the second curved plate 20 will not be separated from the limiting grooves 18. When several groups of first curved plates 4 move, they will drive several groups of second curved plates 20 connected thereto to move synchronously, and the second curved plates 20 will move inward along the limiting grooves 18, so that the connecting spring 19 is compressed;

[0027] The hydraulic pushing mechanism includes a hydraulic pipe 7, which is fixedly connected to the retaining ring 2. Hydraulic oil is arranged in the hydraulic pipe 7. A push plate 24 is slidably connected in the hydraulic pipe 7. The end of the push plate 24 away from the retaining ring 2 is fixedly connected to the T-type push rod 8. The T-type push rod 8 is movably connected in the hydraulic pipe 7. The end of the T-type push rod 8 away from the push plate 24 is movably connected in the connecting pipe 11. The end of the connecting pipe 11 away from the T-type push rod 8 is movably connected in the connecting rod 12. When the tool holder 15 moves, the connecting rod 12 moves along the connecting pipe 11. As the tool holder 15 continues to move, the adjusting bolt 16 pushes the T-type push rod 8 to move inward. The movement of the T-type push rod 8 pushes the hydraulic oil in the hydraulic pipe 7 into the annular cavity 25. The hydraulic oil entering the annular cavity 25 enters the limiting cavity 22 through the liquid guide cavity 23, and pushes the T-type support rod 5 to move inward along the limiting cavity 22.

[0028] An adjusting screw 9 is movably connected to the end of the hydraulic pipe 7 away from the retaining ring 2. By adjusting the adjusting screw 9, the moving distance of the push plate 24 is limited. Slide grooves 10 are provided in the upper and lower ends of the connecting pipe 11. Adjusting bolts 16 are movably connected in the two groups of slide grooves 10. By adjusting the position of the adjusting bolts 16, the moving distance of the T-shaped push rod 8 along the connecting pipe 11 is adjusted. A connecting disk 14 is fixedly connected to one end of the left connecting shaft 1, and a plurality of fixing screws 13 are fixedly connected to the connecting disk 14. A tail handle 6 is fixedly connected to one end of the right connecting shaft 1.

[0029] Working principle: when in use, the connecting plate 14 is connected to the lathe spindle through several groups of fixing screws 13, and the tail handle 6 is connected to the tailstock of the lathe. After the connection is completed, the positions of several groups of first arc plates 4 are adjusted according to the size of the valve plate 17 to be processed, so that the outer diameter formed by several groups of first arc plates 4 corresponds to the outer diameter of the valve plate 17 to be processed. In the process of adjusting the first arc plate 4, the movement of the first arc plate 4 will drive the T-shaped support rod 5 to move, and the T-shaped support rod 5 will move along the limiting cavity 22. When the T-shaped support rod 5 moves inward, the hydraulic oil will enter the limiting cavity 22 through the liquid guide cavity 23. When the T-shaped support rod 5 moves outward, the hydraulic oil in the limiting cavity 22 will be squeezed into the liquid guide cavity 23 and re-enter the annular cavity 25. The hydraulic oil entering or withdrawing from the annular cavity 25 will drive the push plate 24 to move inward or outward along the hydraulic pipe 7.

[0030] After the position of the first curved plate 4 is adjusted, the adjusting screw 9 is rotated to make it contact with the push plate 24 to ensure that the first curved plate 4 after the position is adjusted will not move outward any more, and the valve plate 17 is clamped between the plurality of first curved plates 4 by moving the tailstock of the lathe. After the clamping is completed, the two groups of connecting rods 12 are connected to the tool holder 15, and the tool holder 15 is moved so that the tool installed on the tool holder 15 is moved to a position close to the outer diameter of the valve plate 17 to ensure that the tool does not contact the outer diameter of the valve plate 17. During the movement of the tool holder 15, the connecting pipe 11 is driven to move synchronously, and the T-type push rod 8 moves along the inner side of the connecting pipe 11. The adjusting bolt 16 is loosened to move it to a position in contact with the T-type push rod 8. After the movement is completed, the adjusting bolt 16 is tightened again.

[0031] The rotation of the machine tool spindle drives the connecting shaft 1 connected thereto to start rotating. At this time, the valve plate 17 starts to rotate, and the moving tool holder 15 makes the tool contact with the outer diameter of the valve plate 17. When the tool moves to the position of the valve plate 17, as the tool holder 15 continues to move, the adjusting bolt 16 pushes the T-type push rod 8 to move inward. The T-type push rod 8 moves to push the hydraulic oil in the hydraulic pipe 7 into the annular cavity 25. The hydraulic oil entering the annular cavity 25 enters the limiting cavity 22 through the liquid guide cavity 23, and pushes the T-type support rod 5 to move inward along the limiting cavity 22. The movement of the T-type support rod 5 drives the first arc plate 4 to move. The clamping roller 3 connected to the outside of the first arc plate 4 moves along the surface of the valve plate 17. When several groups of first arc plates 4 move, they will drive several groups of second arc plates 20 connected thereto to move synchronously. The second arc plates 20 will move inward along the limiting groove 18, so that the connecting spring 19 is compressed.

[0032] The plurality of groups of pressing balls 21 connected to the outside of the second arc-shaped plate 20 will move along the surface of the valve plate 17, so that when the tool processes the outer diameter of the valve plate 17, the first arc-shaped plate 4 will always keep a certain distance from the tool, and at the same time, the valve plate 17 is clamped and supported by the plurality of groups of pressing rollers 3 and the pressing balls 21, so as to prevent the valve plate 17 from shaking when the tool cuts the valve plate 17 due to the clamping point being close to the inner side of the valve plate 17;

[0033] When the processing is completed, the tool holder 15 is controlled to return to the original position. At this time, the T-shaped push rod 8 moves outward, and the several groups of first arc plates 4 and second arc plates 20 expand outward to their original positions again. The new valve plate 17 is clamped between the several groups of first arc plates 4 again to start further processing.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool for turning a compressor valve plate, comprising two sets of connecting shafts, characterized in that: A plurality of groups of limiting cavities are provided inside the outer side of the connecting shaft, a T-shaped support rod is movably connected in the limiting cavity, one end of the T-shaped support rod is away from the limiting cavity and extends into the external environment, and is fixedly connected to the first arc plate, and the second arc plates are movably connected in both ends of the first arc plate, and the two groups of the second arc plates are movably connected to the other group of the first arc plates at one end away from the first arc plate, a clamping roller is movably connected in one end of the first arc plate, and a plurality of groups of clamping balls are movably connected in one end of the second arc plate, and the limiting cavity is communicated with the two groups of liquid guide cavities, and the liquid guide cavity is provided in the connecting shaft; The end of the liquid guide cavity away from the limiting cavity is connected to the annular cavity, the annular cavity is arranged on the outer side of the connecting shaft, a retaining ring is movably connected in the annular cavity, hydraulic oil is arranged in the annular cavity, the retaining ring is connected to the liquid pushing mechanism, by connecting the liquid pushing mechanism to the tool holder, when the tool holder moves, the liquid pushing mechanism is driven to inject hydraulic oil into the annular cavity, and the hydraulic oil enters the limiting cavity to drive the T-shaped support rod to move inward, so that the first arc plate connected thereto moves inward; Limiting grooves are provided at both ends of the first arc plate, the second arc plate is slidably connected to the limiting grooves, a connecting spring is fixedly connected in the limiting grooves, and the other end of the connecting spring is fixedly connected to the second arc plate.

2. A tool for turning a compressor valve sheet according to claim 1, characterized in that: The hydraulic pushing mechanism includes a hydraulic pipe, which is fixedly connected to a baffle ring, hydraulic oil is arranged in the hydraulic pipe, a push plate is slidably connected in the hydraulic pipe, one end of the push plate away from the baffle ring is fixedly connected to a T-shaped push rod, the T-shaped push rod is movably connected in the hydraulic pipe, one end of the T-shaped push rod away from the push plate is movably connected in a connecting pipe, and one end of the connecting pipe away from the T-shaped push rod is movably connected in a connecting rod.

3. A tool for turning a compressor valve sheet according to claim 2, characterized in that: An adjusting screw is movably connected in one end of the hydraulic pipe away from the retaining ring, and sliding grooves are provided in both the upper and lower ends of the connecting pipe, and adjusting bolts are movably connected in two groups of the sliding grooves.

4. A tool for turning a compressor valve sheet according to claim 1, characterized in that: One end of the connecting shaft on the left is fixedly connected with a connecting disk, and a plurality of sets of fixing screws are fixedly connected inside the connecting disk. One end of the connecting shaft on the right is fixedly connected with a tail handle.

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