A curved surface positioning device for transmission components of a reciprocating compressor

Abstract

The utility model discloses a curved surface positioning device for a transmission component of a reciprocating compressor, belonging to the technical field of machining auxiliary devices, comprising a tooling base plate, on which are arranged a first support block, a second support block and a third support block arranged in sequence along a curved path of a workpiece; a pressure plate assembly is arranged above the first support block and the third support block; the first support block, the second support block and the third support block are all provided with a V-shaped groove on their upper parts, and the installation angles of the first support block, the second support block and the third support block in the circumferential direction are adjustable; it also includes a base, and the third support block is connected to the base through an adjustable threaded shaft and a guide shaft; the rotation of the adjustable threaded shaft can drive the third support block to move up and down; the pressure plate assembly comprises a pressure plate and a connecting rod, and a curved surface groove is provided on the pressure plate; the pressure plate can be rotatably arranged on a rotating shaft; the utility model can improve the clamping stability, reduce the processing safety risk and quality risk; it can shorten the alignment time during the clamping process, and improve the efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of machining auxiliary devices, in particular to a curved surface positioning device for a transmission component of a reciprocating compressor. Background Art

[0002] In the machining process of reciprocating compressor transmission parts, a kind of bent pipe product is common. This kind of product will encounter many problems when clamping and positioning. Because the outer surface is a curved surface, the commonly used pressure plate and the outer surface are not tightly fitted. In actual operation, a pad is placed under the pressure plate to assist in adjusting and clamping the workpiece. This method also has great risks. If the pad is unevenly stressed, it may splash out when the operator tightens the pressure plate, or it may slowly loosen due to vibration during the processing, causing safety and processing quality accidents, and there are problems such as difficult clamping and poor stability.

[0003] In addition, the processing of the bent pipe is mainly to process its two ends, but due to the irregular shape and structure of the bent pipe, the outer cylindrical surface is all rough surface, so clamping and alignment consumes a lot of time.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a curved surface positioning device for a reciprocating compressor transmission component, which can improve clamping stability, reduce processing safety risks and quality risks; and can shorten the alignment time during clamping and improve efficiency.

[0006] The utility model adopts the following technical scheme: a curved surface positioning device for a reciprocating compressor transmission component, comprising a tooling base plate, on which a first support block, a second support block and a third support block are arranged in sequence along a curved path of a workpiece;

[0007] A pressing plate assembly is disposed above each of the first supporting block and the third supporting block;

[0008] The first support block, the second support block and the third support block are all provided with V-shaped grooves on their upper parts, and the installation angles of the first support block, the second support block and the third support block in the circumferential direction are adjustable;

[0009] It also includes a base, and the third support block is connected to the base through an adjustable threaded shaft and a guide shaft; the adjustable threaded shaft can rotate to drive the third support block to move up and down;

[0010] The pressing plate assembly comprises a pressing plate and a connecting rod. The pressing plate is provided with a curved groove for fitting with the surface of the workpiece. The pressing plate can be rotatably arranged on a rotating shaft.

[0011] Furthermore, the first support block, the second support block and the base are all mounted on the tooling bottom plate through annular T-shaped slots and T-shaped blocks;

[0012] The T-shaped slot is arranged on the tooling bottom plate, and the first support block, the second support block and the base are respectively fixed on the corresponding T-shaped blocks by cylindrical head screws.

[0013] Furthermore, a semicircular groove is provided in the middle of the pressing plate, and a connecting shaft is rotatably provided in the semicircular groove;

[0014] The rotating shaft coaxially passes through the connecting shaft;

[0015] The lower end of the connecting rod is threadedly connected to the connecting shaft, and the connecting rod is perpendicular to the connecting shaft.

[0016] Furthermore, a positioning column is installed at both ends of the first support block and the base, a positioning plate is sleeved on the two positioning columns, and a pin hole is opened in the middle of the positioning plate;

[0017] The upper end of the connecting rod can be movably inserted into the pin hole, and a nut is arranged on the portion of the connecting rod located above the positioning plate.

[0018] Furthermore, a threaded section is provided at the top end of the positioning column and is cooperatively connected with a shoulder nut, and the shoulder nut is arranged above the positioning plate.

[0019] Furthermore, the curved groove surface of the pressing plate is provided with a reticulated knurling.

[0020] Furthermore, a plurality of lifting threaded holes are provided on the tooling bottom plate, and eye screws are provided in the lifting threaded holes.

[0021] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0022] The utility model can achieve a better fit effect with the workpiece during clamping, and by being used in conjunction with the support component, the clamping stability can be improved, and the processing safety risks and quality risks can be reduced; the alignment time during the clamping process can be shortened, the clamping time can be shortened, and the efficiency can be improved.

[0023] The utility model is easy to operate and reduces labor intensity.

[0024] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 is a schematic diagram of the support assembly;

[0027] Figure 3It is a schematic diagram of the tooling base plate;

[0028] Figure 4 is a schematic diagram of a pressure plate assembly;

[0029] Figure 5 It is a schematic diagram of the state of clamping a workpiece of the utility model.

[0030] In the figure,

[0031] 1- tooling base plate, 2- base, 3- first support block, 4- second support block, 5- third support block, 6- adjustable threaded shaft, 7- guide shaft, 8- positioning column, 9- positioning plate, 10- shoulder nut, 11- pin hole, 12- pressure plate, 13- connecting shaft, 14- rotating shaft, 15- connecting rod, 16- T-slot, 17- semicircular groove, 18- workbench, 19- lifting threaded hole, 20- lifting eye screw. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings. Example

[0033] like Figure 1-5 As shown together, the utility model provides a curved surface positioning device for a reciprocating compressor transmission component, including a tooling base plate 1 , which can be installed on a workbench 18 .

[0034] The device also includes a support assembly for supporting the workpiece, and the support assembly is arranged on the tooling base plate 1; the support assembly includes a first support block 3, a second support block 4 and a third support block 5 which are arranged in sequence along the curved path of the workpiece. Specifically, the first support block 3 and the third support block 5 are arranged corresponding to the two ends of the workpiece, and the second support block 4 is arranged corresponding to the middle part of the workpiece, so as to support the workpiece at both ends and the middle.

[0035] The device also includes a pressure plate assembly for clamping the workpiece. Two pressure plate assemblies are provided, one pressure plate assembly is arranged in cooperation with the first support block 3, and the other pressure plate assembly is arranged in cooperation with the third support block 5, so as to clamp and position the workpiece from both ends.

[0036] The first support block 3, the second support block 4 and the third support block 5 are all provided with V-shaped grooves for supporting the workpiece on their upper parts. The installation angles of the first support block 3, the second support block 4 and the third support block 5 in the circumferential direction are adjustable to target bends with different bending angles and enhance the versatility of the device.

[0037] The device also includes a base 2, and the third support block 5 is connected to the base 2 through an adjustable threaded shaft 6 and a guide shaft 7; rotating the adjustable threaded shaft 6 can drive the third support block 5 to move up and down to achieve the purpose of leveling the end face of the bent pipe workpiece; the guide shaft 7 guides the third support block 5 when it moves up and down, so that the third support block 5 can move more stably and smoothly.

[0038] The first support block 3, the second support block 4 and the base 2 are installed on the tooling base plate 1 through the circular T-slot 16 and the T-block. The T-slot 16 is opened on the tooling base plate 1, and the first support block 3, the second support block 4 and the base 2 are fixed to the T-block through cylindrical head screws; this structure can arbitrarily adjust the circumferential installation angles of the first support block 3, the second support block 4 and the third support block 5. For bent pipes with different bending angles, the V-grooves of the three support blocks and the workpiece can have a better fitting effect, thereby enhancing the versatility of the device and improving the stability of clamping.

[0039] The pressing plate assembly includes a pressing plate 12, a connecting shaft 13, a rotating shaft 14 and a connecting rod 15. The pressing plate 12 is provided with a curved groove for fitting with the surface of the workpiece; the pressing plate 12 can be rotatably set on the rotating shaft 14, and the pressing plate 12 can rotate around the rotating shaft 14, so that the pressing plate 12 has a degree of freedom, which makes the pressing plate 12 more adjustable. The elbows with similar structures can be clamped.

[0040] A semicircular groove 17 is provided in the middle of the pressing plate 12 , and a connecting shaft 13 is rotatably provided in the semicircular groove 17 , and the rotating shaft 14 coaxially passes through the connecting shaft 13 ; a connecting rod 15 is threadedly connected to the connecting shaft 13 , and the connecting rod 15 is perpendicular to the connecting shaft 13 .

[0041] A positioning column 8 is installed at both ends of the first support block 3 and the base 2, and a positioning plate 9 is sleeved on the two positioning columns 8. A pin hole 11 is opened in the middle of the positioning plate 9, and the connecting rod 15 is inserted into the pin hole 11. The part of the connecting rod 15 located above the positioning plate 9 is connected with a nut to fix the connecting rod 15 in the pin hole 11; the connecting rod 15 is movable in the pin hole 11; the advantage of the pin hole 11 here is that the pressure plate assembly can be guided by the structure and can also be used as the center of rotation, so that the pressure plate assembly increases a horizontal rotation degree of freedom, so as to achieve the purpose of universal clamping of more types of bent pipe workpieces.

[0042] The top of the positioning column 8 is provided with a threaded section and a shoulder nut 10 is provided in cooperation. The height of the positioning plate 9 is adjusted by adjusting the position of the shoulder nut 10. When clamping the workpiece, after adjusting the position of the pressing plate 12 and the workpiece, the shoulder nut 12 is adjusted to adjust the height of the positioning plate 9 to clamp the workpiece.

[0043] Furthermore, the curved groove surface of the pressing plate 12 is knurled to provide a better contact effect between the workpiece and the pressing plate 12 and avoid the risk of slipping.

[0044] A plurality of lifting threaded holes 19 are provided on the tooling bottom plate 1 , and eye screws 20 are provided in the lifting threaded holes 19 .

[0045] In actual production, depending on different working conditions, the position angle and other related dimensions of the support block can be flexibly adjusted according to the diameter floating range of the workpiece to be processed.

[0046] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A curved surface positioning device for a reciprocating compressor transmission component, characterized in that: It comprises a tooling base plate (1), on which a first support block (3), a second support block (4) and a third support block (5) are arranged in sequence along a curved path of a workpiece; A pressure plate assembly is disposed above each of the first support block (3) and the third support block (5); The first support block (3), the second support block (4) and the third support block (5) are all provided with V-shaped grooves on their upper parts, and the installation angles of the first support block (3), the second support block (4) and the third support block (5) in the circumferential direction are adjustable; It also comprises a base (2), the third support block (5) being connected to the base (2) via an adjustable threaded shaft (6) and a guide shaft (7); the adjustable threaded shaft (6) can rotate to drive the third support block (5) to move up and down; The pressing plate assembly comprises a pressing plate (12) and a connecting rod (15); the pressing plate (12) is provided with a curved groove for fitting with the surface of a workpiece; and the pressing plate (12) is rotatably arranged on a rotating shaft (14).

2. A curved surface positioning device for a reciprocating compressor transmission component according to claim 1, characterized in that: The first support block (3), the second support block (4) and the base (2) are all mounted on the tooling base plate (1) via an annular T-shaped groove (16) and a T-shaped block; The T-shaped slot (16) is provided on the tooling base plate (1), and the first support block (3), the second support block (4) and the base (2) are respectively fixed to the corresponding T-shaped blocks by means of cylindrical head screws.

3. A curved surface positioning device for a reciprocating compressor transmission component according to claim 1, characterized in that: A semicircular groove (17) is provided in the middle of the pressing plate (12), and a connecting shaft (13) is rotatably provided in the semicircular groove (17); The rotating shaft (14) coaxially passes through the connecting shaft (13); The lower end of the connecting rod (15) is threadedly connected to the connecting shaft (13), and the connecting rod (15) is perpendicular to the connecting shaft (13).

4. A curved surface positioning device for a reciprocating compressor transmission component according to claim 1, characterized in that: A positioning column (8) is installed at both ends of the first support block (3) and the base (2), a positioning plate (9) is sleeved on the two positioning columns (8), and a pin hole (11) is opened in the middle of the positioning plate (9); The upper end of the connecting rod (15) can be movably inserted into the pin hole (11), and a nut is provided on the portion of the connecting rod (15) located above the positioning plate (9).

5. A curved surface positioning device for a reciprocating compressor transmission component as claimed in claim 4, characterized in that: The top end of the positioning column (8) is provided with a threaded section and is cooperatively connected with a shoulder nut (10), and the shoulder nut (10) is arranged above the positioning plate (9).

6. A curved surface positioning device for a reciprocating compressor transmission component according to claim 1, characterized in that: The curved groove surface of the pressing plate (12) is provided with a reticulated knurling.

7. A curved surface positioning device for a reciprocating compressor transmission component according to claim 1, characterized in that: The tooling base plate (1) is provided with a plurality of lifting threaded holes (19), and eye screws (20) are provided in the lifting threaded holes (19).

Images