Fixing device for compressor piston drilling

Abstract

The fixing device for compressor piston drilling comprises a supporting frame, the top of the supporting frame is fixedly connected with a slotting supporting plate through a bolt, a screw is arranged in an inner cavity of the supporting frame, the surface of the screw is in threaded connection with a supporting piece, the left side and the right side of the supporting piece are both rotationally connected with connecting rods, and the connecting rods are connected with the supporting piece in a threaded mode. The grooving device comprises a grooving supporting plate, the grooving supporting plate is provided with two connecting rods, the ends, opposite to each other, of the two connecting rods are both rotationally connected with U-shaped blocks, the left side and the right side of an inner cavity of the grooving supporting plate are both slidably connected with supporting blocks, and the tops of the two supporting blocks are both fixedly connected with abutting limiting pieces through bolts. And then the supporting block and the abutting limiting piece are driven by the connecting rod to fix and clamp the piston piece, and therefore the purpose that in the drilling process, the piston piece is prevented from swinging left and right, and errors of the drilling position are caused can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressor production, in particular to a fixing device for drilling a compressor piston. Background Art

[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. Compressors are divided into piston compressors, screw compressors, linear compressors, etc.

[0003] A piston compressor is generally composed of a housing, an electric motor, a cylinder block, a piston, a control device and a cooling system. Before assembly, the piston needs to be drilled. The drilled hole is called an oil return hole. When the piston moves downward, the oil ring scrapes too much oil. If no oil return hole is provided, the oil will accumulate in the ring groove and finally leak into the ring mouth. In order to fix and limit the piston part when drilling the piston, so as to avoid the piston part swinging left and right during the drilling process, resulting in an error in the hole opening position, a fixing device for compressor piston drilling is designed. The device drives the interference limit parts on both sides to slide relative to each other through a screw to fix and clamp the piston part. At the same time, under the action of the interference rod and the limit head, the piston part is fixed for a second time, so as to avoid the piston part swinging left and right during the drilling process, resulting in an error in the hole opening position. Utility Model Content

[0004] The utility model aims to provide a fixing device for drilling a compressor piston, which can avoid the piston from swinging left and right during the drilling process, thereby preventing the hole opening position from having an error, so as to solve the above-mentioned background technical problems.

[0005] The utility model provides a technical solution to the above technical problems as follows: a fixing device for drilling a hole in a compressor piston, comprising a support frame: a slotted support plate is fixedly connected to the top of the support frame by bolts, a screw is provided in the inner cavity of the support frame, a support member is threadedly connected to the surface of the screw, a connecting rod is rotatably connected to the left and right sides of the support member, and the opposite ends of the two connecting rods are rotatably connected to U-shaped blocks, support blocks are slidably connected to the left and right sides of the inner cavity of the slotted support plate, and the tops of the two support blocks are fixedly connected to interference limit members by bolts.

[0006] Preferably, the support block is fixedly connected to the top of the U-shaped block by bolts, the front and rear sides of the inner cavity of the interference limiter are rotatably connected with interference rods, and the opposite ends of the two interference rods are fixedly connected to the limit heads.

[0007] Preferably, a spring sheet is fixedly connected to the inner wall of the abutment limiter, and surfaces at opposite ends of the two abutment rods are fixedly connected to the spring sheet.

[0008] Preferably, a fixing plate is fixedly connected to the inner wall of the slotted support plate, a collar is fixedly connected to the bottom of the fixing plate via bolts, and the top end of the screw rod is threadedly connected to the inner cavity of the collar.

[0009] Preferably, the bottom end of the screw rod is fixedly connected to a limiting round head, the bottom of the inner cavity of the support frame is fixedly connected to a motor via bolts, and the output shaft of the motor is fixedly connected to the limiting round head via a flange.

[0010] Preferably, limiting grooves are provided on both the front and rear sides of the inner cavity of the slotted support plate, and limiting strips are fixedly connected to the front and rear sides of the support block, and the surface of the limiting strip is slidably connected to the inner cavity of the limiting groove.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model starts the motor to drive the screw to rotate, and drives the support member to slide downward, and then drives the support block and the abutment limit member to fix and clamp the piston member through the connecting rod, so as to avoid the piston member from swinging left and right during the drilling process, resulting in an error in the hole opening position;

[0013] 2. The utility model can apply an outward supporting force to the resistance rod when the resistance rod is deflected by setting the spring sheet, so that the resistance rod and the limit head can be more stable when fixing and clamping the piston member;

[0014] 3. The utility model can ensure that the support block can maintain parallel sliding during the sliding process of the support block through the setting of the limit strip, and can prevent the support block from deflecting and causing the interference limit piece to shake when clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 A schematic diagram of a front view of an embodiment of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of a slotted support plate according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the interference limiter part of an embodiment of the utility model;

[0019] Figure 4 The figure is a cross-sectional schematic diagram of an interference limiter according to an embodiment of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Support frame, 2. Slotted support plate, 3. Screw, 4. Support member, 5. Connecting rod, 6. U-shaped block, 7. Support block, 8. Resistance limit member, 9. Resistance rod, 10. Limit head, 11. Spring sheet, 12. Fixing plate, 13. Ring, 14. Limit round head, 15. Motor, 16. Limit strip. DETAILED DESCRIPTION

[0022] Hereinafter, embodiments of the fixing device for drilling a compressor piston of the present invention will be described with reference to the accompanying drawings.

[0023] Embodiment 1:

[0024] Figure 1-4 A fixing device for drilling a piston of a compressor of an embodiment of the utility model is shown, which comprises: a support frame 1: the top of the support frame 1 is fixedly connected with a slotted support plate 2 by bolts, the inner cavity of the support frame 1 is provided with a screw rod 3, the surface of the screw rod 3 is threadedly connected with a support member 4, the left and right sides of the support member 4 are rotatably connected with connecting rods 5, the opposite ends of the two connecting rods 5 are rotatably connected with U-shaped blocks 6, the left and right sides of the inner cavity of the slotted support plate 2 are slidably connected with support blocks 7, the tops of the two support blocks 7 are fixedly connected with a conflicting stopper 8 by bolts, the support block 7 is fixedly connected to the top of the U-shaped block 6 by bolts, and the front and rear ends of the inner cavity of the conflicting stopper 8 Both sides are rotatably connected with resistance rods 9, and the opposite ends of the two resistance rods 9 are fixedly connected with limit heads 10. The inner wall of the resistance limit member 8 is fixedly connected with a spring sheet 11. Through the setting of the spring sheet 11, an outward supporting force can be applied to the resistance rod 9 when the resistance rod 9 is deflected, so that the resistance rod 9 and the limit head 10 can be more stable when fixing and clamping the piston member. The surfaces of the opposite ends of the two resistance rods 9 are fixedly connected with the spring sheet 11, and the inner wall of the slotted support plate 2 is fixedly connected with a fixing plate 12. The bottom of the fixing plate 12 is fixedly connected with a ring 13 by bolts, and the top of the screw rod 3 is threadedly connected to the inner cavity of the ring 13.

[0025] Embodiment 2:

[0026] Figure 1-4A fixing device for drilling a piston of a compressor according to an embodiment of the utility model is shown, which comprises: a support frame 1: a slotted support plate 2 is fixedly connected to the top of the support frame 1 by bolts, a screw rod 3 is arranged in the inner cavity of the support frame 1, a support member 4 is threadedly connected to the surface of the screw rod 3, a connecting rod 5 is rotatably connected to the left and right sides of the support member 4, and a U-shaped block 6 is rotatably connected to the opposite ends of the two connecting rods 5, a support block 7 is slidably connected to the left and right sides of the inner cavity of the slotted support plate 2, the tops of the two support blocks 7 are fixedly connected to the abutment limiter 8 by bolts, and the bottom end of the screw rod 3 is fixedly connected to A limiting round head 14 and a motor 15 are fixedly connected to the bottom of the inner cavity of the support frame 1 by bolts, and the output shaft of the motor 15 is fixedly connected to the limiting round head 14 through a flange. Limiting grooves are provided on the front and rear sides of the inner cavity of the slotted support plate 2, and limiting strips 16 are fixedly connected to the front and rear sides of the support block 7. The surface of the limiting strip 16 is slidably connected to the inner cavity of the limiting groove. Through the setting of the limiting strip 16, it can be ensured that the support block 7 can maintain parallel sliding during the sliding process of the support block 7, which can prevent the support block 7 from deflecting and causing the interference with the limiting member 8 to shake when clamped.

[0027] Working principle: When using the utility model, the user places the piston in the inner cavity of the fixing plate 12, starts the motor 15 to drive the screw 3 to rotate, and drives the support member 4 to slide downward, thereby deflecting the connecting rod 5 to drive the support blocks 7 on both sides to slide relatively, thereby making the abutment limit member 8 to fix and clamp the piston. At the same time, the surface of the piston exerts an outward squeezing force on the abutment rod 9, thereby deflecting the abutment rod 9 and driving the limit head 10 to fix the piston for a second time, thereby avoiding the piston from swinging left and right during the drilling process, which may cause errors in the hole opening position.

[0028] In summary, the compressor piston drilling fixing device drives the screw 3 to rotate by starting the motor 15, and drives the support member 4 to slide downward, and then drives the support block 7 and the abutment limit member 8 to fix and clamp the piston member through the connecting rod 5, so as to avoid the piston member from swinging left and right during the drilling process, which causes errors in the hole opening position.

Claims

1. A fixing device for drilling a compressor piston, characterized in that: The invention comprises a support frame (1): the top of the support frame (1) is fixedly connected to a slotted support plate (2) by bolts, the inner cavity of the support frame (1) is provided with a screw rod (3), the surface of the screw rod (3) is threadedly connected to a support member (4), the left and right sides of the support member (4) are both rotatably connected to connecting rods (5), the opposite ends of the two connecting rods (5) are both rotatably connected to U-shaped blocks (6), the left and right sides of the inner cavity of the slotted support plate (2) are both slidably connected to support blocks (7), and the tops of the two support blocks (7) are both fixedly connected to abutment limit members (8) by bolts.

2. A fixing device for drilling a compressor piston according to claim 1, characterized in that: The support block (7) is fixedly connected to the top of the U-shaped block (6) by means of bolts, and the front and rear sides of the inner cavity of the abutment limiter (8) are rotatably connected to abutment rods (9), and the opposite ends of the two abutment rods (9) are fixedly connected to a limit head (10).

3. A fixing device for drilling a compressor piston according to claim 2, characterized in that: The inner wall of the abutment stopper (8) is fixedly connected with a spring sheet (11), and the surfaces of the opposite ends of the two abutment rods (9) are fixedly connected with the spring sheet (11).

4. A fixing device for drilling a compressor piston according to claim 3, characterized in that: The inner wall of the slotted support plate (2) is fixedly connected to a fixing plate (12), the bottom of the fixing plate (12) is fixedly connected to a collar (13) via bolts, and the top end of the screw rod (3) is threadedly connected to the inner cavity of the collar (13).

5. A fixing device for drilling a compressor piston according to claim 4, characterized in that: The bottom end of the screw rod (3) is fixedly connected to a limiting round head (14); the bottom of the inner cavity of the support frame (1) is fixedly connected to a motor (15) via bolts; the output shaft of the motor (15) is fixedly connected to the limiting round head (14) via a flange.

6. A fixing device for drilling a compressor piston according to claim 5, characterized in that: Limiting grooves are provided on both the front and rear sides of the inner cavity of the slotted support plate (2), and limiting strips (16) are fixedly connected to both the front and rear sides of the support block (7), and the surface of the limiting strip (16) is slidably connected to the inner cavity of the limiting groove.

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