Workpiece clamping device for laser cleaning

Abstract

The utility model discloses a workpiece clamping device for laser cleaning, which is used for cleaning circular tube workpieces and comprises a base, a clamping device, a clamping device and a clamping device. The movable seat is guided on the base in a preset horizontal direction; the vertical frame is vertically fixed on the movable seat, a seat hole is formed in one side of the vertical frame, and a locking hole is formed in the side face of the seat hole; the number of the chuck is one, and the chuck is rotatably mounted on the seat hole; and the locking component is matched with the locking hole so as to lock the chuck after the chuck rotates and is adjusted in place. The workpiece clamping device for laser cleaning is relatively compact in structure and relatively easy to adjust.

Description

Technical Field

[0001] The utility model relates to a device for clamping round tube workpieces in a laser cleaning process. Background Art

[0002] Although laser cleaning appeared early, in the early days of laser cleaning, the workpiece was usually placed directly on the workbench. Since the posture of the workpiece was fixed at this time, it was difficult to adjust the laser cleaner lens, which ultimately led to uneven thickness of the oxide layer removed by the laser, that is, the cleaning quality was low.

[0003] Then, special clamps appeared in this field for clamping workpieces and adjusting their posture. The earlier workpiece clamping device for laser cleaning includes a rotating worktable, and a lifting device is provided on the rotating worktable. The corresponding clamp is installed on the lifting device, so that the clamp has one lifting degree of freedom and one rotational degree of freedom, and the posture of the workpiece can be adjusted according to the situation of the workpiece. This type of workpiece clamping device for laser cleaning is relatively complex, and in most applications it is not necessary to configure multiple degrees of freedom, and the number of degrees of freedom and the workpiece posture corresponding to the degrees of freedom should be adapted, otherwise the configured degrees of freedom are meaningless.

[0004] In addition, the workpiece clamping device for laser cleaning needs to be adapted according to the type of workpiece. For example, sheet workpieces and tubular workpieces have different requirements for posture adjustment and clamping methods. The workpiece clamping device for laser cleaning provided in the embodiment of the utility model belongs to a device for clamping round tube workpieces. Currently, double chucks or single chuck components are generally used to clamp such workpieces because the chuck can provide rotational freedom, which allows the clamped round tube workpiece to be adjusted circumferentially, which is conducive to relatively comprehensive cleaning. However, its posture is difficult to control accurately. If the driving device is used for dynamic adjustment while realizing posture control based on the traction on the power side, it will inevitably increase the difficulty of its control. Utility Model Content

[0005] The utility model aims to provide a workpiece clamping device for laser cleaning which has a relatively compact structure and is relatively easy to adjust.

[0006] In an embodiment of the utility model, a workpiece clamping device for laser cleaning is provided, which is used for cleaning round tube workpieces. The workpiece clamping device for laser cleaning comprises:

[0007] Pedestal;

[0008] A movable seat, guided on the base in a predetermined horizontal direction;

[0009] A stand is vertically fixed on the movable seat, and one side of the stand has a seat hole, and a locking hole is opened on the side of the seat hole;

[0010] a chuck, which is one and is rotatably mounted on the seat hole; and

[0011] A locking component cooperates with the locking hole to lock the chuck after the chuck is rotated and adjusted into place.

[0012] Optionally, the base is provided with a guide rail for guiding the movable seat;

[0013] Correspondingly, the moving seat includes a slide table that cooperates with the guide rail.

[0014] Optionally, the movable seat further comprises a seat plate fixed on the slide table by fasteners;

[0015] The stand is correspondingly fixed on the seat plate.

[0016] Optionally, a scale plate is mounted on the chuck, and the scale plate is coaxial with the chuck.

[0017] Optionally, the shaft section where the chuck and the seat hole cooperate is provided with positioning grooves distributed circumferentially.

[0018] Optionally, the positioning groove is a V-shaped groove or a tapered groove;

[0019] If it is a V-shaped groove, the direction of the V-shaped groove is parallel to the axial direction of the chuck.

[0020] Optionally, the number of the positioning grooves is 4 to 28.

[0021] Optionally, the locking component is a spring pin or a set screw with a handle.

[0022] Optionally, the stand is a support plate;

[0023] The normal direction of the support plate is the axial direction of the chuck.

[0024] Optionally, a reinforcing plate is provided at the lower part of the support plate on the side where the chuck is located.

[0025] In the embodiment of the utility model, the workpiece clamping device for laser cleaning provided also has two degrees of freedom, one is the degree of freedom determined by the moving pair formed by the cooperation between the moving seat and the base, and the other is the degree of freedom determined by the rotation of the chuck in the seat hole involved in the stand. Among them, the degree of freedom of movement is in the horizontal plane, and the friction angle is greater than the pressure angle after it is in place, so it can be quickly adjusted to the position. The degree of freedom of rotation can be locked using a locking component, and the overall adjustment is relatively convenient. And for shaft parts, single-end clamping is used, and the exposed part is relatively large, which is conducive to the relative comprehensiveness of laser cleaning. After cleaning most of the workpiece including one end, turn around and clamp the end, and clean the other end, and adjustment and cleaning are relatively convenient. In addition, it is often unnecessary to calculate the space occupied by the horizontal degree of freedom, because this degree of freedom or bed is currently widely present, and for the rotational degree of freedom, it is provided by a single chuck, and its adjustment is a rotational movement around its own axis, which does not occupy additional space. It can be seen that the clamping device based on the embodiment of the utility model is relatively compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of a workpiece clamping device for laser cleaning in one embodiment.

[0027] Figure 2 The figure is a schematic diagram of the structure of the rotating mechanism of the workpiece clamping device for laser cleaning in one embodiment.

[0028] Figure 3 Schematic diagram of the chuck mounting base structure in one embodiment.

[0029] In the figure: 1. guide rail, 2. slide, 3. seat plate, 4. screw, 5. claw, 6. chuck body, 7. manual wrench, 8. dial, 9. swivel seat, 10. pointer, 11. pin seat, 12. reinforcement plate, 13. support plate, 14. spring pin, 15. installation end face, 16. assembly hole, 17. shaft neck, 18. slot. DETAILED DESCRIPTION

[0030] Since the structure or construction is relatively simple, in the embodiments of the present utility model, relatively conventional structures or constructions in the art are briefly described, and improved parts are described in detail.

[0031] Figure 1 The illustrated workpiece clamping device for laser cleaning is suitable for cleaning round tube workpieces, wherein the chuck having a chuck body 6 with jaws 5 is a four-jaw chuck, and in some embodiments, a three-jaw chuck may also be used.

[0032] The typical application of the chuck is to clamp workpieces with cylindrical outer contours, such as round tubes or round steel. In the embodiment of the present invention, the chuck is equipped with a single end clamping for round tube workpieces. When cleaning, the clamping head will not be cleaned. After the cleaning of the parts other than the clamping head is completed, the round tube workpiece is turned around for cleaning.

[0033] Since the applicable object is round tube workpieces, compared with round steel, the weight of round tube workpieces with the same diameter is relatively light, and it is suitable to be clamped using a single chuck.

[0034] The workpiece clamping device for laser cleaning further comprises a base, Figure 1 The guide rail 1 shown in the figure can be used as a base or a component part of a base, and the base is a base body and also a component of a structure such as a guide structure.

[0035] The object of guidance is a mobile seat, such as Figure 1 The components including the slide 2 shown in the figure provide a guiding direction which is a horizontal direction, specifically a horizontal linear motion direction.

[0036] The moving seat provides a first degree of freedom, which is horizontal linear motion, referred to herein as basic motion.

[0037] A stand is mounted on the mobile seat, such as Figure 1 The support plate 13 shown in the figure is used to construct the rotational freedom. Accordingly, the stand is vertically fixed on the moving seat, and one side of the stand has a seat hole, and the side of the seat hole has a locking hole, and the axis of the seat hole is a horizontal line and parallel to the linear motion direction.

[0038] The chuck and the seat hole are rotationally matched. In the machine tool field, the chuck is fixed on the spindle of the machine tool. In an embodiment of the utility model, the tail end of the chuck can be an axial structure to be installed in the seat hole through, for example, a bearing.

[0039] Figure 3 The chuck body 6 is fixed to the chuck body 6 by bolts, for example. Figure 3 On the assembly hole 16 shown in. The mounting seat has a journal 17, which is used to install the bearing to cooperate with the seat hole.

[0040] A locking hole is opened on the side of the seat hole to adapt to a locking component, and the locking component cooperates with the locking hole to lock the chuck after the chuck is rotated and adjusted into place.

[0041] As for the locking hole, it can be a threaded hole, and adapted for example, a set screw, and the set screw can be a set screw with a handle, so that the chuck can be manually locked.

[0042] The locking hole can also be a light hole, adapted for example to a spring pin 14, and the pin of the spring pin 14 cooperates with the light hole. The chuck body 6 or the mounting base of the chuck body 6 can be provided with a locking hole in alignment, and the pin can be inserted into the locking hole to lock the chuck.

[0043] Therefore, in some embodiments, the shaft section where the chuck and the seat hole cooperate is circumferentially distributed with positioning grooves, and the positioning groove can be the aforementioned locking hole, the locking hole is a blind hole, and the blind hole can be a conical hole.

[0044] Regarding the positioning groove, it can also be as follows Figure 3 The card slot 18 shown in the example, Figure 3 The card groove 18 illustrated in FIG. 1 is a V-shaped groove.

[0045] If it is a V-shaped groove, the direction of the V-shaped groove is parallel to the axial direction of the chuck.

[0046] It should be noted that, assuming that the laser head is on the upper side, the chuck may have only four corner positions, and the number of corresponding positioning grooves may be only four, corresponding to the four corner positions of the chuck.

[0047] If you want to achieve more precise corner adjustment, the number of positioning slots can be slightly more, but it should not exceed 28. Too many positioning slots are not of high value.

[0048] Regarding the guidance of the mobile seat, it can be a track guidance, such as Figure 1 The guide rail 1 shown in the figure has relatively good support. In some implementations, guide posts can also be used for guiding.

[0049] Figure 1 In the embodiment, the movable seat comprises a slide 2 and a seat plate 3 fixed on the slide 2, and a Figure 1 The illustrated structure uses screws 4 for assembly; the screw 4 connection is a detachable connection so that different types of chucks can be replaced according to the workpiece conditions.

[0050] exist Figure 1 In the illustrated structure, the stand is the support plate 13 shown in the figure, and the support plate 13 is fixedly mounted on the seat plate 3, and the connection method is preferably welding.

[0051] Since the workpiece is clamped in an overhanging manner, in order to improve the overall rigidity, a reinforcing plate 12 is provided on the front side of the support plate 13 , that is, the side where the chuck is located. The reinforcing plate 12 is a triangular plate supported between the support plate 13 and the seat plate 3 .

[0052] The normal direction of the support plate 13 is the axial direction of the chuck.

[0053] exist Figure 3In the illustrated structure, a scale plate 8 is mounted on the chuck, and the scale plate 8 is coaxial with the chuck. Accordingly, a pointer 10 is provided on one side of the seat hole, so that the angular position of the chuck can be observed intuitively.

Claims

1. A workpiece clamping device for laser cleaning, used for cleaning round tube workpieces, characterized in that: The workpiece clamping device for laser cleaning comprises: Pedestal; A movable seat, guided on the base in a predetermined horizontal direction; A stand is vertically fixed on the movable seat, and one side of the stand has a seat hole, and a locking hole is opened on the side of the seat hole; a chuck, which is one and is rotatably mounted on the seat hole; and A locking component cooperates with the locking hole to lock the chuck after the chuck is rotated and adjusted into place.

2. The workpiece clamping device for laser cleaning according to claim 1, characterized in that: The base is provided with a guide rail for guiding the movable seat; Correspondingly, the moving seat includes a slide table that cooperates with the guide rail.

3. The workpiece clamping device for laser cleaning according to claim 2, characterized in that: The movable seat also includes a seat plate fixed to the slide table by fasteners; The stand is correspondingly fixed on the seat plate.

4. The workpiece clamping device for laser cleaning according to claim 1, characterized in that: A scale plate is mounted on the chuck, and the scale plate is coaxial with the chuck.

5. The workpiece clamping device for laser cleaning according to claim 4, characterized in that: The shaft section where the chuck and the seat hole match is circumferentially provided with positioning grooves.

6. The workpiece clamping device for laser cleaning according to claim 5, characterized in that: The positioning groove is a V-shaped groove or a tapered groove; If it is a V-shaped groove, the direction of the V-shaped groove is parallel to the axial direction of the chuck.

7. The workpiece clamping device for laser cleaning according to claim 5 or 6, characterized in that: The number of the positioning grooves is 4 to 28.

8. The workpiece clamping device for laser cleaning according to claim 1, characterized in that: The locking component is a spring pin or a set screw with a handle.

9. The workpiece clamping device for laser cleaning according to claim 1, characterized in that: The stand is a support plate; The normal direction of the support plate is the axial direction of the chuck.

10. The workpiece clamping device for laser cleaning according to claim 9, characterized in that: The support plate is provided with a reinforcing plate at the lower part of the side where the chuck is located.

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