Turbine blade edge grinding and clamping device

Abstract

The utility model discloses a turbine blade edge polishing and clamping device. The turbine blade edge polishing and clamping device comprises a device base, a bottom moving assembly, an abutting head assembly, a fixed vertical plate and a top abutting assembly. Through the synergistic effect of the bottom moving assembly and the top abutting assembly, accurate clamping and pressure control over turbine blades of different sizes and shapes are achieved. The abutting head assembly has a flexible clamping function and adapts to irregular shapes of the surfaces of the turbine blades, and damage is avoided. And by means of the detachable connection design of the blade abutting template and the air cylinder, the universality and applicability of the device are improved. The containing block in the abutting head assembly is provided with two installation grooves which do not interfere with each other, the supporting effect on the portions, with different heights, of the turbine blades is achieved, the blades are stably clamped, and follow-up grinding operation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to vane production technical field especially relates to a turbine vane edge polishing clamping device. BACKGROUND

[0002] In the turbine vane manufacturing and processing industry, the edge polishing of turbine vane is a crucial link. The edge quality of turbine vane directly affects its aerodynamic performance and overall performance. However, in the traditional turbine vane edge polishing process, the clamping device often has problems such as insufficient clamping force, poor adaptability, and easy damage to the surface of the vane. Especially when dealing with turbine vanes of different sizes and shapes, these problems are particularly prominent.

[0003] To solve these problems, some improved turbine vane edge polishing clamping devices have appeared on the market. However, these devices often have complex structures, cumbersome operations, and still unsatisfactory clamping effects. Therefore, there is an urgent need for a clamping device that can accurately clamp the edge of a turbine vane, adapt to turbine vanes of different sizes and shapes, and protect the surface of the turbine vane. SUMMARY

[0004] The utility model aims at providing a turbine vane edge polishing clamping device to solve the above problems.

[0005] The utility model realizes the following technical scheme:

[0006] A turbine vane edge polishing clamping device, comprising a device base, a groove is opened on the upper surface of the device base, a bottom moving assembly is installed in the groove, and the bottom moving assembly is connected vertically through a support rod and a pressing head assembly. Two fixed vertical plates are vertically set on the device base on both sides of the groove opening direction. A top pressing assembly is provided between the upper ends of the fixed vertical plates. The top pressing assembly and the pressing head assembly provided in the groove of the device base correspond to each other.

[0007] Further,

[0008] The bottom moving assembly comprises a second lead screw, a blocking block, a second sliding block, a second motor, and a support rod. The second lead screw is parallel to the bottom of the groove and is provided in the groove. One end of the second lead screw penetrates through the side surface of the device base and is connected with the second motor. A blocking block is also provided at the middle position of the second lead screw. Different direction but same width threads are provided on the second lead screw on both sides of the blocking block. Second sliding blocks matching the threads are provided on the different thread sections of the lead screw. A support rod is vertically set on the upper surface of the second sliding block. A pressing head assembly is vertically set on the other end of the support rod.

[0009] Further,

[0010] The pressing head assembly comprises a containing block, a telescopic rod, a spring, a pressing block, a buffer layer and a proximity sensor, the bottom of the containing block is vertically connected with a support rod, two installation grooves are formed in the upper surface of the containing block, the telescopic rod is vertically arranged in each installation groove, and the spring is sleeved on the telescopic rod.

[0011] Further,

[0012] The top pressing assembly comprises a first screw rod, a first sliding block, a limiting guide rod, a cylinder, a blade pressing template and a first motor, the first screw rod and the limiting guide rod are arranged between two fixed vertical plates, a gap is formed between the first screw rod and the limiting guide rod at a certain distance, and the first screw rod and the limiting guide rod are at the same height, one end of the first screw rod penetrates through the fixed vertical plate and is connected with the first motor outside, the first sliding block is arranged on the first screw rod and the limiting guide rod, the cylinder is arranged above the first sliding block and corresponds to the gap, and the cylinder is vertically connected with the blade pressing template through the gap between the first sliding block, the first screw rod and the limiting guide rod.

[0013] Further,

[0014] The length of the telescopic rod is greater than the depth of the installation groove, so that the spring can be fully compressed, and the telescopic rod and the spring are in a normal length when not working.

[0015] Further,

[0016] The blade pressing template and the cylinder are detachably connected, the blade pressing template can perfectly match the turbine blade when the blade pressing template is in contact with the turbine blade, and the edge of the turbine blade is just exposed when the blade pressing template is in contact with the turbine blade.

[0017] The utility model discloses the beneficial effects of:

[0018] 1. The telescopic rod, the spring and the buffer layer in the pressing head assembly make the clamping process flexible, can adapt to the irregular shape of the blade surface, avoid damaging the blade surface, the setting of the proximity sensor further ensures that the blade is not applied with excessive pressure during the clamping process, and the integrity of the blade is protected.

[0019] 2. The adjustability of the bottom moving assembly and the top pressing assembly makes the device can adapt to blades of different sizes and shapes. The detachable connection design of the blade pressing template and the cylinder makes the template can be replaced according to the shape of the blade, ensures that the contact surface of the blade and the template is perfectly matched during clamping, improves the universality and applicability of the device.

[0020] 3. The accommodating block in the pressing head assembly is provided with two mounting grooves for mounting the telescopic rod, spring and buffer layer, and the telescopic rod, spring and buffer layer mounted in the two mounting grooves do not affect each other, the telescopic rod and spring in the two mounting grooves in one pressing head assembly are combined, the telescopic rod and spring in one mounting groove can be compressed, the telescopic rod and spring in the other mounting groove are not compressed or the telescopic rod and spring in the other mounting groove are compressed to different degrees, which enables the pressing head assembly to support the places with different heights on the blade and cooperate with the top pressing assembly to more stably clamp the blade. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the principles of the present application. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of the present application;

[0023] Figure 2 It is Figure 1 It is a perspective view of the pressing head assembly at A in the middle.

[0024] Markings in the drawings and corresponding names of parts:

[0025] 1 - device base, 10 - groove, 2 - fixed vertical plate, 3 - top pressing assembly, 30 - first lead screw, 31 - first sliding block, 32 - limit guide rod, 33 - air cylinder, 34 - blade pressing template, 35 - first motor, 4 - bottom moving assembly, 40 - second lead screw, 41 - blocking block, 42 - second sliding block, 43 - second motor, 5 - support rod, 6 - pressing head assembly, 60 - accommodating block, 601 - mounting groove, 61 - telescopic rod, 62 - spring, 63 - pressing block, 64 - buffer layer, 65 - proximity sensor. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the embodiments and drawings, but the embodiments of the present application are not limited thereto.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In the description of the utility model, still need to explain, unless have explicit provision and limitation, term '' set '', '' open have '', '' install '', '' link '', '' connection '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the intermediate medium indirectly connect, can be two element inside intercommunication. For ordinary skilled person in the art, can understand the specific meaning of the above-mentioned term in the utility model according to specific circumstances.

[0029] Embodiment

[0030] Reference Figures 1 to 2 :

[0031] A turbine blade edge polishing clamping device, including device base 1, the upper surface of device base 1 is provided with groove 10, the bottom moving assembly 4 is arranged in the groove 10, and the bottom moving assembly 4 is connected vertically by support rod 5 and pressure head assembly 6, the fixed vertical plate 2 is vertically arranged on the device base 1 on both sides of the groove 10 opening direction, the top pressure assembly 3 is arranged between the upper end of the fixed vertical plate 2, and the top pressure assembly 3 and the pressure head assembly 6 arranged in the groove 10 of device base 1 correspond to each other.

[0032] Further,

[0033] The bottom moving assembly 4 includes second lead screw 40, blocking block 41, second sliding block 42, second motor 43, support rod 5, the second lead screw 40 is arranged in the groove 10 parallel to the bottom of the groove 10, and one end of the second lead screw 40 penetrates the side of the device base 1 and is connected with the second motor 43, the second lead screw 40 is further provided with blocking block 41 at the middle position, different direction but same width threads are arranged on the second lead screw 40 on both sides of the blocking block 41, the second sliding block 42 matched with the threads is arranged on the different threaded lead screw sections, the support rod 5 is vertically arranged on the upper surface of the second sliding block 42, and the pressure head assembly 6 is vertically arranged at the other end of the support rod 5.

[0034] The bottom moving assembly 4 realizes the accurate movement of the pressure head assembly 6 in the groove 10. The second lead screw 40 is driven by the second motor 43 and can move in parallel in the groove 10, and the movement range is limited by the blocking block 41. The second sliding block 42 moves in different directions according to the different direction threads on the lead screw, so as to drive the support rod 5 and the pressure head assembly 6 on the two second sliding blocks 42 to approach or move away, and the size of the blade can be flexibly adjusted.

[0035] Further,

[0036] The pressing head assembly 6 comprises a containing block 60, a telescopic rod 61, a spring 62, a pressing block 63, a buffer layer 64, and a proximity sensor 65. The bottom of the containing block 60 is vertically connected with the support rod 5, and two installation grooves 601 are formed on the upper surface of the containing block 60. The telescopic rod 61 is vertically arranged in the installation grooves 601, and the spring 62 is sleeved on the telescopic rod 61. The end of the telescopic rod 61 is vertically connected with the pressing block 63. The upper surface of the pressing block 63 is provided with the buffer layer 64, and the bottom of the installation groove 601 is provided with the proximity sensor 65 for monitoring the distance between the pressing block 63 and the groove 10.

[0037] The pressing head assembly 6 realizes flexible clamping and pressure control of the blade. When the telescopic rod 61 and the spring 62 are retracted, the pressing block 63 has an upward force and cooperates with the top pressing assembly 3 to clamp the blade. The buffer layer 64 prevents the pressing block 63 from damaging the blade during clamping. The proximity sensor 65 monitors the distance between the pressing block 63 and the groove 10 to prevent the top pressing assembly 3 from excessively pressing the telescopic rod 61 and the spring 62 during clamping, which causes the pressing block 63 to enter the installation groove 601 and directly press the blade. Because the blade may be irregular, directly pressing the irregular part of the blade with the containing block 60 may damage the irregular part of the blade.

[0038] Therefore, when the proximity sensor 65 detects that the distance between the pressing block 63 and itself is less than a certain threshold, the proximity sensor 65 can convert the distance information into an electrical signal to control the cylinder 33 in the top pressing assembly 3 to stop operating.

[0039] Further,

[0040] The top pressing assembly 3 comprises a first lead screw 30, a first sliding block 31, a limiting guide rod 32, a cylinder 33, a blade pressing template 34, and a first motor 35. The first lead screw 30 and the limiting guide rod 32 are arranged between the two fixed vertical plates 2. The first lead screw 30 and the limiting guide rod 32 are separated by a certain distance to form a gap, and the first lead screw 30 and the limiting guide rod 32 are at the same height. One end of the first lead screw 30 penetrates through the fixed vertical plate 2 and is connected with the first motor 35 outside. The first sliding block 31 is arranged on the first lead screw 30 and the limiting guide rod 32. The cylinder 33 is arranged above the first sliding block 31 corresponding to the gap. The cylinder 33 penetrates through the gap between the sliding block, the first lead screw 30, and the limiting guide rod 32 and is vertically connected with the blade pressing template 34.

[0041] The cooperation of the first screw rod 30 and the limiting guide rod 32 enables the first sliding block 31 to move smoothly, and the cylinder 33 applies a downward force on the blade by pushing the blade against the blade pressing template 34 to cooperate with the bottom moving assembly 4 and the pressing head assembly 6 to clamp the blade. The contact surface of the blade pressing template 34 and the blade is designed to be detachable and perfectly matched with the blade, so that the edge of the blade can be accurately exposed during clamping, facilitating subsequent polishing operation.

[0042] Further,

[0043] The length of the telescopic rod 61 is greater than the depth of the mounting groove 601, can satisfy sufficient compression of the spring 62, and the telescopic rod 61 and the spring 62 are in normal length when not working.

[0044] The length of the telescopic rod 61 is greater than the depth of the mounting groove 601, so that the spring 62 is in normal length when not working, and sufficient compression space can be provided during clamping.

[0045] Further,

[0046] The blade pressing template 34 is detachably connected with the cylinder 33, and the blade pressing template 34 can be perfectly matched with the turbine blade when being in contact with the turbine blade, so that the edge of the turbine blade is just exposed when the blade pressing template 34 is in contact with the turbine blade.

[0047] The detachable connection of the blade pressing template 34 and the cylinder 33 enables the template to be replaced according to the shape and size of different turbine blades, so that the contact surface of the blade and the template is perfectly matched during clamping, improves the universality of the device, ensures that the edge of the turbine blade can be accurately exposed during clamping, facilitates subsequent polishing operation, improves the polishing precision and efficiency.

[0048] The principle of the utility model is:

[0049] The precise clamping and pressure control of the blade are realized through the cooperation of the bottom moving assembly 4 and the top pressing assembly 3. The device base 1 is provided with a groove 10, and the bottom moving assembly 4 is installed in the groove 10, including a second lead screw 40, a second sliding block 42, a support rod 5 and a pressing head assembly 6. The second lead screw 40 is driven by a second motor 43 to move the two second sliding blocks 42 in the groove 10, and then the position of the pressing head assembly 6 is adjusted through the support rod 5 to adapt to blades of different sizes. The pressing head assembly 6 includes a containing block 60, an extension rod 61, a spring 62, a pressing block 63 and a proximity sensor 65. Through the elastic force of the spring 62 and the monitoring of the proximity sensor 65, the flexible clamping of the blade is realized, the blade is prevented from being damaged, and the containing block 60 of the pressing head assembly 6 is provided with two installation grooves 601. The extension rod 61, the spring 62 and the pressing block 63 in the two installation grooves 601 do not interfere with each other, so that the pressing head assembly 6 can actually contact the blade for the part of the blade with different heights and generate a supporting force on the blade. The top pressing assembly 3 includes a first lead screw 30, a first sliding block 31, an air cylinder 33 and a blade pressing template 34. The blade pressing template 34 is pushed downward by the air cylinder 33 to apply pressure, cooperates with the bottom pressing head assembly 6 to clamp the blade, and the blade pressing template 34 ensures that the edge of the blade is accurately exposed during clamping, which is convenient for subsequent polishing operation.

[0050] The specific embodiments are described above, and the purposes, technical solutions and advantages of the utility model are further described in detail. It should be understood that the above description is only a specific embodiment of the utility model and does not limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A turbine blade edge grinding clamp device comprising a device base (1), characterized in that, The device base (1) upper surface is provided with a groove (10), the groove (10) is provided with a bottom moving assembly (4), and the bottom moving assembly (4) is connected vertically through the support rod (5) and the pressing head assembly (6), and the fixed vertical plate (2) is vertically arranged on the device base (1) on both sides of the groove (10) opening direction, the top pressing assembly (3) is arranged between the upper ends of the fixed vertical plate (2), and the top pressing assembly (3) and the pressing head assembly (6) provided in the groove (10) of the device base (1) correspond to each other.

2. A turbine blade edge dressing clamp apparatus as claimed in claim 1, wherein, The bottom moving assembly (4) comprises a second lead screw (40), a blocking block (41), a second sliding block (42), a second motor (43) and a support rod (5), the second lead screw (40) is arranged in the groove (10) parallel to the bottom of the groove (10), and one end of the second lead screw (40) penetrates the side of the device base (1) and is connected with the second motor (43), the second lead screw (40) is further provided with a blocking block (41) at the middle position, different direction but same width threads are arranged on the second lead screw (40) on both sides of the blocking block (41), the second sliding block (42) matched with the threads is arranged on the different thread lead screw segments, the support rod (5) is vertically arranged on the upper surface of the second sliding block (42), and the pressing head assembly (6) is vertically arranged at the other end of the support rod (5).

3. A turbine blade edge dressing clamp apparatus as claimed in claim 2, wherein, The pressing head assembly (6) comprises a containing block (60), a telescopic rod (61), a spring (62), a pressing block (63), a buffer layer (64) and a proximity sensor (65), the containing block (60) is vertically connected with the support rod (5), two installation grooves (601) are formed in the upper surface of the containing block (60), the telescopic rod (61) is vertically arranged in the installation groove (601), the spring (62) is sleeved on the telescopic rod (61), the telescopic rod (61) is vertically connected with the pressing block (63), the buffer layer (64) is further arranged on the upper surface of the pressing block (63), and the proximity sensor (65) for monitoring the distance between the pressing block (63) and the groove (10) is arranged at the bottom of the installation groove (601).

4. A turbine blade edge dressing clamp apparatus as defined in claim 1, wherein, The top pressing assembly (3) comprises a first screw rod (30), a first sliding block (31), a limiting guide rod (32), a cylinder (33), a blade pressing template (34) and a first motor (35). The first screw rod (30) and the limiting guide rod (32) are arranged between the two fixed vertical plates (2). The first screw rod (30) and the limiting guide rod (32) are separated by a certain distance to form a gap, and the first screw rod (30) and the limiting guide rod (32) are at the same height. One end of the first screw rod (30) penetrates through the fixed vertical plate (2) and is connected with the first motor (35) outside. The first sliding block (31) is arranged on the first screw rod (30) and the limiting guide rod (32). The cylinder (33) is arranged above the first sliding block (31) corresponding to the gap. The cylinder (33) penetrates through the gap between the sliding block, the first screw rod (30) and the limiting guide rod (32) and is connected with the blade pressing template (34) vertically.

5. A turbine blade edge dressing clamp apparatus as claimed in claim 3, wherein, The length of the telescopic rod (61) should be greater than the depth of the installation groove (601) to satisfy the full compression of the spring (62), and the telescopic rod (61) and the spring (62) are in normal length when not working.

6. A turbine blade edge dressing clamp apparatus as claimed in claim 4, wherein, The blade pressing template (34) is detachably connected with the cylinder (33). When the blade pressing template (34) contacts with the turbine blade, it can perfectly match the turbine blade. When the blade pressing template (34) contacts with the turbine blade, the edge of the turbine blade just exposes.

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