Concentricity calibration tool for horizontal rotary table

Abstract

A horizontal rotary table concentricity calibration tool comprises an index plate calibration assembly, an extension rod, a rod body supporting assembly, a rod body concentricity calibration assembly, a first measurement assembly and a second measurement assembly. The index plate calibration assembly is connected with one end of the extension rod in an inserted mode, the rod body supporting assembly supports the extension rod, the rod body concentric calibration assembly is installed on the rod body supporting assembly, the first measuring assembly is installed at the other end of the extension rod, and the second measuring assembly is installed on the extension rod and located on the side close to the first measuring assembly. The index plate calibration assembly comprises an index plate calibration rod. The rod body supporting assembly comprises a base, and a V-shaped block is arranged on the base. The rod body concentric calibration assembly comprises a first dial indicator, and a pointer of the first dial indicator is in contact with the bottom of the extension rod; the first measuring assembly comprises a lever indicator; the second measuring assembly comprises a second dial indicator. The tool is provided with the extension rod concentric with the rotary table, the extension rod is closer to the tailstock after extending, and the concentricity of the rotary table and the tailstock can be efficiently calibrated.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a horizontal turntable concentricity calibration tool. Background Art

[0002] When CNC is producing products, a concentric turntable is needed to clamp and rotate the product so that the product can be processed at different angles in one process. Figure 1 In order to meet the machining accuracy, the turntable 100 and the tailstock 200 are required to maintain strict concentricity.

[0003] The existing horizontal turntable tooling has the following defects during assembly:

[0004] 1) It is difficult to calibrate the concentricity of the turntable 100 and the tailstock 200, and the concentricity calibration process is relatively cumbersome;

[0005] 2) Some positioning structures can be designed to assist in adjusting the concentricity, but because the horizontal turntable tooling is relatively large, the positioning accuracy is difficult to guarantee. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a horizontal turntable concentricity calibration tool to overcome the deficiencies in the prior art.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A horizontal turntable concentricity calibration tool comprises a dividing plate calibration assembly, an extension rod, a rod support assembly, a rod concentricity calibration assembly, a first measuring assembly and a second measuring assembly; the dividing plate calibration assembly is plugged into one end of the extension rod, the rod support assembly supports the extension rod from below, the rod concentricity calibration assembly is mounted on the rod support assembly, the first measuring assembly is mounted on the other end of the extension rod, and the second measuring assembly is mounted on the extension rod and is located on a side close to the first measuring assembly;

[0009] The indexing plate calibration assembly includes a hollow indexing plate calibration rod;

[0010] The rod support assembly includes a base, on which a V-shaped block is arranged;

[0011] The rod body concentric calibration assembly includes a first dial indicator, the needle of which contacts the bottom of the extension rod;

[0012] The first measuring assembly includes a lever dial indicator, the needle of which extends into and contacts the inner wall of the shaft hole of the tailstock;

[0013] The second measuring assembly comprises a second dial indicator, the needle of the second dial indicator is parallel to the extension rod, and the needle of the second dial indicator faces the end surface of the tailstock and contacts the end surface of the tailstock.

[0014] Furthermore, a guide rail is vertically arranged on the base, a slide is slidably installed on the guide rail, a clamping groove is arranged on the slide in the front-rear direction, a V-shaped block is installed in the clamping groove, and a V-shaped groove is arranged on the top surface of the V-shaped block.

[0015] Furthermore, the rod support assembly also includes a positioning frame, which is arranged below the slide, and cooperates with positioning grooves symmetrically opened on the base and located on both sides of the guide rail; a hexagonal key adjustment bolt is vertically arranged on the positioning frame, and the hexagonal key adjustment bolt is used to support the slide from the bottom.

[0016] Furthermore, a step-shaped limit ring is provided on the outer wall of the dividing plate calibration rod; a docking sleeve is detachably mounted on one end of the dividing plate calibration rod facing the turntable, and the docking sleeve is precisely matched with the axial hole of the turntable; a first fastener is provided on the other end of the dividing plate calibration rod facing the tail frame.

[0017] Furthermore, a second fastener is provided on a side wall of the extension rod close to one end of the tail frame, and a tooth hole is provided on one end of the extension rod facing the tail frame.

[0018] Furthermore, the rod concentric calibration assembly is installed on the base and is located beside the slide, and the first dial indicator is vertically installed on the base through a dial base.

[0019] Furthermore, the lever dial indicator is installed in the threaded hole of the extension rod through a dial base, and is fastened to the extension rod through a second fastener.

[0020] Furthermore, the second dial indicator is mounted and fastened on the outer wall of the extension rod through a dial base.

[0021] Preferably, a magnetic attraction structure is provided at the bottom of the base.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1) A horizontal turntable concentricity calibration tool in this case is provided with an extension rod concentric with the turntable. After the extension rod is extended, it is closer to the tailstock, which is conducive to indirectly calibrating the concentricity of the turntable and the tailstock, and the calibration efficiency is high.

[0024] 2) A horizontal turntable concentricity calibration tool in this case is easy to operate. It can be used to calibrate the concentricity and verticality of turntables and tailstocks of different models by simply replacing the docking sleeve or the extension rod, and has good applicability.

[0025] In order to more clearly understand the present invention, the following will describe the preferred implementation of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the assembly of the turntable and the tailstock in the background technology;

[0027] Figure 2 This is a reference diagram of the use state of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the indexing plate calibration assembly of the utility model;

[0030] Figure 5 It is a structural schematic diagram of the extension rod of the utility model;

[0031] Figure 6 It is a structural schematic diagram of a rod support assembly and a rod concentric calibration assembly of the utility model;

[0032] Figure 7 It is a schematic diagram of assembling the first measuring component and the second measuring component of the utility model.

[0033] Figure ID:

[0034] 1- indexing plate calibration assembly, 2- extension rod, 3- rod support assembly, 4- rod concentric calibration assembly, 5- first measuring assembly, 6- second measuring assembly; 11- indexing plate calibration rod, 12- step-shaped limit ring, 13- docking sleeve; 31- base, 32- guide rail, 33- slide, 34- V-block, 35- positioning frame, 36- positioning groove, 37- hexagonal key adjustment bolt; 41- first dial indicator; 51- lever dial indicator; 61- second dial indicator; 100- turntable; 200- tailstock. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" 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 an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0038] Please also see Figure 1-7 The utility model provides a horizontal turntable concentricity calibration tool, comprising a dividing plate calibration component 1, an extension rod 2, a rod support component 3, a rod concentricity calibration component 4, a first measuring component 5 and a second measuring component 6; the dividing plate calibration component 1 is plugged into one end of the extension rod 2, the rod support component 3 supports the extension rod 2 from below, the rod concentricity calibration component 4 is installed on the rod support component 3, the first measuring component 5 is installed on the other end of the extension rod 2, and the second measuring component 6 is installed on the extension rod 2 and is located on a side close to the first measuring component 5.

[0039] The indexing plate calibration assembly 1 includes a hollow indexing plate calibration rod 11, on the outer wall of which a stepped limiting ring 12 is provided; one end of the indexing plate calibration rod 11 facing the turntable 100 is detachably sleeved with a docking sleeve 13, and the docking sleeve 13 is precisely matched with the axial hole of the turntable 100; the other end of the indexing plate calibration rod 11 facing the tail frame 200 is provided with a first fastener, through which the extension rod 2 inserted in the axial hole of the indexing plate calibration rod 11 can be adjusted and fastened. Preferably, in this embodiment, the docking sleeve 13 is a replaceable part, and different types of docking sleeves 13 can be replaced to adapt to the axial holes of turntables 100 of different types, thereby enhancing the adaptability of the tool.

[0040] The extension rod 2 is mainly used to extend the axis of the turntable 100. A tooth hole is provided at one end of the extension rod 2 facing the tailstock 200, and a second fastener is provided on the side wall of the extension rod 2 close to the end of the tailstock 200. The second fastener is used to adjust and fasten the first measuring component 5 installed at one end of the extension rod 2. Preferably, in this embodiment, the extension rod 2 is a replaceable part, and extension rods 2 of different lengths are adapted to the spacing between the turntable 100 and the tailstock 200 of different models, further enhancing its adaptability.

[0041] The rod support assembly 3 is mainly used to support the extension rod 2 from the bottom. When the extension rod 2 is too long, it will bend to a certain extent due to the effect of gravity, which will affect the result of concentricity calibration.

[0042] The rod support assembly 3 includes a base 31, a guide rail 32 is vertically arranged on the base 31, a slide 33 is slidably mounted on the guide rail 32, a clamping groove is arranged on the slide 33 in the front-to-back direction, a V-shaped block 34 is installed in the clamping groove, and a V-shaped groove is arranged on the top surface of the V-shaped block 34; since the V-shaped block 34 is vertically lifted and lowered by the slide 33, and the V-shaped block 34 is horizontally adjusted forward and backward by the clamping groove, the V-shaped groove on the V-shaped block 34 can support the extension rod 2 from the bottom, so that the extension rod 2 is only subjected to an upward support force;

[0043] The rod body support assembly 3 also includes a positioning frame 35, which is arranged below the slide 33. The positioning frame 35 cooperates with the positioning grooves 36 symmetrically opened on the base 31 and located on both sides of the guide rail 32. The positioning frame 35 can be fixed to the base 31 by fasteners penetrating the positioning frame 35 and the positioning groove 36; a hexagonal key adjustment bolt 37 is vertically arranged on the positioning frame 35, and the hexagonal key adjustment bolt 37 is used to support the slide 33 from the bottom so that the slide 33 can be suspended at a suitable position on the guide rail 32; since the cooperation between the positioning frame 35 and the positioning groove 36 is adjustable and the screw-in depth of the hexagonal key adjustment bolt 37 is also adjustable, the supporting height of the V-block 34 on the slide 33 is adjustable. By simply adjusting the positions of the positioning frame 35, the hexagonal key adjustment bolt 37 and the V-block 34 in the clamping groove, the curvature of the extension rod 2 can be compensated, thereby ensuring the concentricity of the extension rod 2 and the turntable 100.

[0044] The rod body concentric calibration assembly 4 is installed on the base 31 and is located next to the slide 33. The rod body concentric calibration assembly 4 includes a first dial indicator 41, which is vertically installed on the base 31 through a dial holder. During the calibration process, the needle of the first dial indicator 41 contacts the bottom of the extension rod 2, and the degree of bending of the extension rod 2 can be detected by the first dial indicator 41.

[0045] The working principles of the extension rod 2, the rod support assembly 3 and the rod concentric calibration assembly 4 are as follows:

[0046] First, move the base 31 to the first supporting position of the extension rod 2 close to one end of the turntable 100, and adjust the V-block 34 to support the extension rod 2 from the bottom. Since the first supporting position is close to the turntable 100, the concentricity of the extension rod 2 and the turntable 100 at the first supporting position is almost equal. At this time, adjust, observe and record the first value of the first dial indicator 41; then move the base 31 to the second supporting position of the extension rod 2 close to one end of the tailstock 200. Under the action of gravity, the extension rod 2 is naturally bent. The support height of the extension rod 2 is adjusted by adjusting the positioning frame 35 and the hexagonal key adjusting bolt 37. After adjustment, observation and recording, the second value of the first dial indicator 41 is obtained. When the first value is adjusted to be consistent with the second value, the concentricity of the extension rod 2 is consistent with the concentricity of the turntable 100. Since the extension rod 2 is closer to the tailstock 200 after concentric extension, it is beneficial to calibrate the concentricity of the turntable 100 and the tailstock 200.

[0047] The first measuring assembly 5 includes a lever dial gauge 51, which is installed in the threaded hole of the extension rod 2 through a dial base and fastened to the extension rod 2 through a second fastener, and the needle of the lever dial gauge 51 extends into and contacts the inner wall of the shaft hole of the tailstock 200. During measurement, the extension rod 2 rotates and drives the lever dial gauge 51, so that the needle of the lever dial gauge 51 circles on the inner wall of the shaft hole of the tailstock 200, and the concentricity deviation of the turntable 100 and the tailstock 200 is obtained by observing and recording the change of the table value of the lever dial gauge 51.

[0048] The second measuring assembly 6 includes a second dial gauge 61, which is mounted and fastened on the outer wall of the extension rod 2 through a dial base, and the needle of the second dial gauge 61 is parallel to the extension rod 2, and the needle of the second dial gauge 61 faces the end face of the tailstock 200 and contacts the end face of the tailstock 200. During measurement, the extension rod 2 rotates and drives the second dial gauge 61 to rotate with the extension rod 2 as the axis, so that the needle of the second dial gauge 61 circles on the end face of the tailstock 200. By observing and recording the change of the second dial gauge 61, the verticality of the end face of the tailstock 200 can be measured, thereby determining whether the tailstock 200 is installed vertically.

[0049] This case is a horizontal turntable concentricity calibration tool, and its calibration principle is:

[0050] In actual working conditions, after assembling the turntable 100, during the process of assembling the tailstock 200, the calibration tool is inserted into the axial hole of the turntable 100 and rotated. At this time, the rotation axis of the extension rod 2 is also the rotation axis of the turntable 100. The extension rod 2 drives the lever dial indicator 51 at its end to rotate. At this time, the change of the table value of the lever dial indicator 51 is observed. If the fluctuation range of the table value is within 0.02mm, it is considered that the tailstock 200 is concentric with the turntable 100, otherwise it is not concentric. If it is not concentric, the installation position of the tailstock needs to be adjusted. After calibrating the concentricity, the verticality of the installation of the tailstock 200 can also be calibrated by the second dial indicator 61.

[0051] Preferably, in the present embodiment, a magnetic structure is provided at the bottom of the base 31 , so that the base 31 is more stable when supporting the extension rod 2 .

[0052] Preferably, in this embodiment, the first fastener and the second fastener are screws matched with screw holes.

[0053] Compared with the prior art, a horizontal turntable concentricity calibration tool in this case is provided with an extension rod concentric with the turntable. After the extension rod is extended, it is closer to the tailstock, which is conducive to indirect calibration of the concentricity of the turntable and the tailstock, and the calibration efficiency is high.

[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A horizontal turntable concentricity calibration tool, comprising a graduated plate calibration assembly (1), an extension rod (2), a rod support assembly (3), a rod concentricity calibration assembly (4), a first measuring assembly (5) and a second measuring assembly (6), characterized in that: The indexing plate calibration component (1) is plugged into one end of the extension rod (2), the rod body support component (3) supports the extension rod (2) from below, the rod body concentric calibration component (4) is mounted on the rod body support component (3), the first measuring component (5) is mounted on the other end of the extension rod (2), and the second measuring component (6) is mounted on the extension rod (2) and is located on a side close to the first measuring component (5); The indexing plate calibration assembly (1) comprises a hollow indexing plate calibration rod (11); The rod support assembly (3) comprises a base (31), and a V-shaped block (34) is arranged on the base (31); The rod body concentric calibration assembly (4) comprises a first dial gauge (41), the needle of the first dial gauge (41) contacts the bottom of the extension rod (2); The first measuring assembly (5) comprises a lever dial indicator (51), the needle of the lever dial indicator (51) extends into and contacts the inner wall of the shaft hole of the tailstock (200); The second measuring assembly (6) comprises a second dial gauge (61), the needle of the second dial gauge (61) being parallel to the extension rod (2), and the needle of the second dial gauge (61) facing the end surface of the tail frame (200) and contacting the end surface of the tail frame (200).

2. The horizontal turntable concentricity calibration tool according to claim 1, characterized in that: A guide rail (32) is vertically arranged on the base (31), a slide frame (33) is slidably mounted on the guide rail (32), a clamping groove is arranged on the slide frame (33) in the front-rear direction, a V-shaped block (34) is installed in the clamping groove, and a V-shaped groove is arranged on the top surface of the V-shaped block (34).

3. The horizontal turntable concentricity calibration tool according to claim 2, characterized in that: The rod support assembly (3) further comprises a positioning frame (35), which is arranged below the slide (33), and the positioning frame (35) cooperates with positioning grooves (36) symmetrically arranged on the base (31) and located on both sides of the guide rail (32); a hexagon key adjusting bolt (37) is vertically arranged on the positioning frame (35), and the hexagon key adjusting bolt (37) is used to support the slide (33) from the bottom.

4. The horizontal turntable concentricity calibration tool according to claim 1, characterized in that: A step-shaped limiting ring (12) is arranged on the outer wall of the indexing plate calibration rod (11); a docking sleeve (13) is detachably sleeved on one end of the indexing plate calibration rod (11) facing the turntable (100), and the docking sleeve (13) is precisely matched with the axial hole of the turntable (100); and a first fastener is arranged on the other end of the indexing plate calibration rod (11) facing the tail frame (200).

5. The horizontal turntable concentricity calibration tool according to claim 1, characterized in that: A second fastener is provided on the side wall of the extension rod (2) at one end close to the tail frame (200), and a tooth hole is provided at one end of the extension rod (2) facing the tail frame (200).

6. The horizontal turntable concentricity calibration tool according to claim 2, characterized in that: The rod body concentric calibration assembly (4) is installed on the base (31) and is located beside the slide (33), and the first dial indicator (41) is vertically installed on the base (31) via a dial base.

7. The horizontal turntable concentricity calibration tool according to claim 5, characterized in that: The lever dial indicator (51) is installed in the tooth hole of the extension rod (2) through a gauge seat, and is fastened to the extension rod (2) through a second fastener.

8. The horizontal turntable concentricity calibration tool according to claim 1, characterized in that: The second dial indicator (61) is mounted and fastened on the outer wall of the extension rod (2) via a dial base.

9. The horizontal turntable concentricity calibration tool according to claim 1, characterized in that: The bottom of the base (31) is provided with a magnetic attraction structure.

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