Rolling clamping structure for motorized spindle detection

Abstract

The utility model relates to a kind of rolling clamping structures for motorized spindle detection in the technical field of motorized spindle test auxiliary tool, including base, at least two rolling clamping components are separately provided in the length direction of the top of base;The rolling clamping component includes: fixed frame, is installed in the top surface of base;Support wheel group, vertically slidingly connected in the fixed frame, for rolling support motorized spindle workpiece;Two clamping wheel groups, slidingly connected horizontally in the fixed frame, for rolling clamping motorized spindle workpiece;The utility model moves synchronously by linkage mechanism drive support wheel group and clamping wheel group, support wheel group lifts workpiece bottom during clamping process, clamping wheel group is clamped from both sides, realize the integrated operation of "clamping-support", effectively prevent workpiece displacement, ensure detection accuracy, and the central axis of the motorized spindle workpiece of different diameters is all in same straight line.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for testing electric spindles, and in particular to a rolling clamping structure for testing electric spindles. Background Technology

[0002] An electric spindle is an electric device used to drive machine tools. It is commonly found in CNC machining centers, lathes, milling machines, and other machine tools. The quality of the electric spindle will seriously affect the service life of the finished product. In order to ensure its quality, it is necessary to test it.

[0003] However, the existing Chinese patent with authorization announcement number CN220389182U discloses a fixing bracket for electric spindle inspection. The electric spindle is clamped by a support frame with two V-grooves and a connecting rod assembly on both sides of the support frame. Although this device can effectively fix the position of the electric spindle workpiece, it requires frequent inspection and positioning because the center axis height of electric spindle workpieces with different diameters is different. Furthermore, the electric spindle workpiece cannot rotate on it, so it cannot be adapted to inspection operations that require the electric spindle workpiece to rotate, such as roundness inspection.

[0004] To address this, we designed a rolling clamping structure for electric spindle detection. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a rolling clamping structure for electric spindle detection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A rolling clamping structure for electric spindle inspection includes a base, characterized in that: at least two rolling clamping components are spaced apart along the length of the top of the base; the rolling clamping components include: A mounting bracket is installed on the top surface of the base; The support wheel assembly is vertically and slidably connected to the fixed frame for rolling support of the electric spindle workpiece; Two clamping wheel sets are horizontally slidably connected to the fixed frame for rolling clamping of the electric spindle workpiece; A drive cylinder is mounted on the fixed frame and drives the support wheel group and clamping wheel group to move synchronously through a linkage mechanism, so as to position and clamp the workpiece of the electric spindle. The two clamping wheel sets are symmetrically arranged with the support wheel set as the center.

[0007] Furthermore, the linkage mechanism includes: The T-shaped sliding column is vertically slidably connected to the fixed frame and connected to the extension and retraction end of the drive cylinder. Two 45° guide rails are symmetrically installed at both ends of the T-shaped sliding column wing. The tail end of the support wheel assembly is fixedly connected to the middle of the top surface of the T-shaped sliding column wing, and the tail end of the clamping wheel assembly is slidably connected to the 45° guide rail.

[0008] Furthermore, the tail end of the wheel assembly is slidably connected to the fixed frame via a linear guide post, and the end of the linear guide post facing away from the wheel assembly is connected to the corresponding T-shaped sliding post or 45° guide rail.

[0009] Furthermore, the support wheel assembly includes: First main wheel frame; The support wheel is rotatably connected to the top of the first main wheel frame via a pin.

[0010] Furthermore, the clamping wheel assembly includes: Second main wheel frame; The clamping wheel is rotatably connected to the inner side of the second main wheel frame via a pin. The support wheel frame is mounted on top of the second main wheel frame via a horizontally set spring telescopic rod; The pressure roller is rotatably connected to the inner side of the support roller frame via a pin shaft and is used to lower the piezoelectric spindle workpiece.

[0011] Furthermore, the rolling clamping assembly is slidably connected to the top surface of the base via a linear slide rail pair, so as to adjust the position of the rolling clamping assembly to adapt to electric spindle workpieces of different lengths; The linear slide rail pair is arranged along the length direction of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The support wheel group and the clamping wheel group are driven to move synchronously (at the same time and with the same amplitude) through the linkage mechanism (T-shaped sliding column and 45° guide rail). During the clamping process, the support wheel group lifts the bottom of the workpiece, and the clamping wheel group clamps it from both sides, realizing the integrated operation of "clamping-support", effectively preventing the workpiece from tilting, ensuring the detection accuracy, and the center axis of electric spindle workpieces of different diameters are all in the same straight line. 2. The clamping wheel assembly integrates a spring telescopic rod and a pressure roller, providing elastic downward pressure while clamping laterally, which can effectively reduce workpiece vibration; at the same time, the inverted "eight" linkage design of the T-shaped sliding column and the 45° guide rail ensures symmetrical distribution of clamping force and prevents workpiece deflection; 3. The backlash problem of traditional meshing mechanisms is completely avoided by using a pure sliding pair design (the T-shaped sliding column web plate and the vertical sliding groove of the fixed frame, and the inclined sliding of the tail end of the clamping wheel set and the 45° guide rail). Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the internal structure of the rolling clamping assembly in this utility model; Figure 3 This is a front view of the interior of the rolling clamping component of this utility model; Figure 4 This is a structural diagram of the present invention in use.

[0014] In the diagram: 1. Base; 2. Fixing frame; 3. Support wheel assembly; 31. First main wheel frame; 32. Support wheel; 4. Clamping wheel assembly; 41. Second main wheel frame; 42. Clamping wheel; 43. Support wheel frame; 44. Spring telescopic rod; 45. Pressure wheel; 5. Drive cylinder; 6. Linkage mechanism; 61. T-shaped slide column; 62. 45° guide rail; 7. Linear guide column; 8. Linear slide rail pair. Detailed Implementation

[0015] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0016] Example 1, in conjunction with Appendix Figure 1-4 A rolling clamping structure for electric spindle inspection includes a base 1, with two independent rolling clamping components spaced apart along its length on the top of the base 1 (the number of components can be increased according to the length of the electric spindle workpiece). Further, to accommodate electric spindle workpieces of different lengths, a linear slide rail pair 8 is provided on the top surface of the base 1 along its length, with one rolling clamping component mounted on each of its two movable parts; that is, the distance between the two rolling clamping components can be adjusted by moving the movable parts.

[0017] The rolling clamping structure includes the following components: Fixture 2: Mounted (e.g., by bolts) on the movable part of the linear guide pair 8, with a U-shaped notch at the top to accommodate the workpiece of the electric spindle. Preferably, the outer side of the fixture 2 is covered with a protective shell (not shown in the figure) to prevent dust from entering the linkage mechanism 6.

[0018] Support wheel assembly 3: vertically slidably connected to the fixed frame 2. Preferably, the support wheel assembly 3 includes a first main wheel frame 31 that is vertically slidably connected to the fixed frame 2 via a linear guide post 7. A support wheel 32 is rotatably mounted on the top of the first main wheel frame 31 via a pin for supporting the bottom of the workpiece of the electric spindle.

[0019] Two clamping wheel sets 4: symmetrically arranged on both sides of the support wheel set 3, and horizontally slidably connected to the fixed frame 2. Preferably, the clamping wheel set 4 includes a second main wheel frame 41 horizontally slidably connected to the fixed frame 2 via another linear guide post 7. A clamping wheel 42 is rotatably mounted on the inner side of the second main wheel frame 41 (i.e., the side near the center line of the U-shaped notch) via a pin, for clamping the electric spindle workpiece from the side; that is, combined with the attached... Figure 2-3 Two clamping wheel sets 4 are symmetrically arranged on the left and right sides, respectively clamping the workpiece of the electric spindle from the left and right sides.

[0020] Specifically, the outer end of the linear guide post 7 is slidably connected to the 45° guide rail 62.

[0021] Drive cylinder 5: fixed on the side of the fixed frame 2, with the telescopic end pointing vertically downward; specifically, drive cylinder 5 is installed on the outside of the protective shell.

[0022] Linkage mechanism 6 includes: T-shaped sliding column 61: Its abdomen is vertically slidably connected to the fixed frame 2, and its lower end is fixedly connected to the extension end of the drive cylinder 5; specifically, the lower end of the abdomen of the T-shaped sliding column 61 slides out of the protective shell.

[0023] Two 45° guide rails 62 are symmetrically installed at both ends of the wing of the T-shaped sliding column 61.

[0024] It should be noted that the two 45° guide rails 62 are in an inverted figure-eight structure.

[0025] During operation, the extension of the drive cylinder 5 first causes the T-shaped slide column 61 to move downward, which in turn causes the support wheel assembly 3 to move downward to a low position. At the same time, the 45° guide rail 62 moves downward, causing the clamping wheel assemblies 4 on both sides to open outward. Then, the workpiece of the electric spindle is placed above the support wheel 32. Finally, the retraction of the drive cylinder 5 causes the T-shaped slide column 61 to move upward. At this time, the support wheel assembly 3 moves upward synchronously to lift the workpiece of the electric spindle. At the same time, the 45° guide rail 62 moves upward, forcing the clamping wheel assemblies 4 on both sides to move horizontally inward, and the clamping wheel 42 rolls and clamps the workpiece of the electric spindle from both sides.

[0026] Example 2, in conjunction with Appendix Figure 1-4A rolling clamping structure for electric spindle inspection differs from Embodiment 1 in that, to further improve the stability of the electric spindle, the tail end of the second main wheel frame 41 has an upward extension. The inner side of this extension (i.e., the side near the center line of the U-shaped notch) is connected to a support wheel frame 43 via a horizontal spring telescopic rod 44. The inner side of the support wheel frame 43 is rotatably connected to a pressure roller 45 via a pin, for elastically pressing down on the workpiece of the electric spindle.

[0027] This allows the clamping rollers 42 to roll and clamp the workpiece of the electric spindle from both sides, while the pressure rollers 45 can provide a downward force to purge the workpiece of the electric spindle.

[0028] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A rolling clamping structure for electric spindle detection, comprising a base (1), characterized in that: The base (1) has at least two rolling clamping assemblies spaced apart along its length on its top; the rolling clamping assemblies include: The fixing frame (2) is installed on the top surface of the base (1); The support wheel assembly (3) is vertically slidably connected to the fixed frame (2) for rolling support of the electric spindle workpiece; Two clamping wheel sets (4) are horizontally slidably connected to the fixed frame (2) for rolling clamping of the electric spindle workpiece; A drive cylinder (5) is installed on the fixed frame (2) and drives the support wheel group (3) and the clamping wheel group (4) to move synchronously through the linkage mechanism (6) so as to position and clamp the workpiece of the electric spindle. Among them, the two clamping wheel sets (4) are symmetrically arranged with the support wheel set (3) as the center.

2. The rolling clamping structure for electric spindle detection according to claim 1, characterized in that: The linkage mechanism (6) includes: The T-shaped sliding column (61) is vertically slidably connected to the fixed frame (2) and connected to the extension end of the drive cylinder (5); Two 45° guide rails (62) are symmetrically installed at both ends of the wing of the T-shaped sliding column (61); The tail end of the support wheel assembly (3) is fixedly connected to the middle of the top surface of the wing of the T-shaped sliding column (61), and the tail end of the clamping wheel assembly (4) is slidably connected to the 45° guide rail (62).

3. The rolling clamping structure for electric spindle detection according to claim 2, characterized in that: The tail end of the wheel set is slidably connected to the fixed frame (2) via a linear guide post (7), and the end of the linear guide post (7) facing away from the wheel set is connected to the corresponding T-shaped sliding post (61) or 45° guide rail (62).

4. The rolling clamping structure for electric spindle detection according to claim 1, characterized in that: The support wheel assembly (3) includes: First main wheel frame (31); The support wheel (32) is rotatably connected to the top of the first main wheel frame (31) via a pin.

5. The rolling clamping structure for electric spindle detection according to claim 1, characterized in that: The clamping wheel assembly (4) includes: Second main wheel frame (41); The clamping wheel (42) is rotatably connected to the inner side of the second main wheel frame (41) via a pin; The support wheel frame (43) is mounted on top of the second main wheel frame (41) via a horizontally set spring telescopic rod (44); The pressure roller (45) is rotatably connected to the inner side of the support roller frame (43) via a pin shaft and is used to lower the piezoelectric spindle workpiece.

6. The rolling clamping structure for electric spindle detection according to claim 1, characterized in that: The rolling clamping assembly is slidably connected to the top surface of the base (1) via a linear slide rail pair (8) so as to adjust the position of the rolling clamping assembly to adapt to electric spindle workpieces of different lengths; The linear slide rail pair (8) is arranged along the length direction of the base (1).

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