Eccentric clamp of cylindrical grinding machine

Abstract

The utility model relates to the field of clamps, and discloses a cylindrical grinding machine eccentric clamp which comprises a grinding machine body, a grinding head is arranged at the top of the front end face of the grinding machine body, a workbench is fixedly installed in the middle of the front end face of the grinding machine body, and a supporting base is installed on the upper surface of the workbench. Supporting rods are fixedly installed at the positions, close to the four corners, of the upper surface of the supporting base, a containing frame is fixedly installed at the top ends of the supporting rods, second gears are rotationally installed at the positions, close to the four corners, of the upper end and the lower end of the inner wall of the containing frame, and eccentric clamping pieces are installed in the positions, extending to the positions above the containing frame, of the middles of the top ends of the second gears. The multiple eccentric clamping pieces rotationally abut against the outer surface of the workpiece, so that the effect of conveniently centering and clamping the workpiece is achieved, the stability of the workpiece in the machining process is improved, the problem that the workpiece is not stably placed after being clamped is solved, and the subsequent machining efficiency of the workpiece is improved.

Description

Technical Field

[0001] This application relates to the field of fixtures, and more particularly to an eccentric fixture for a cylindrical grinding machine. Background Technology

[0002] Cylindrical grinding machines are precision machine tools used to process the outer surfaces of cylindrical workpieces. They occupy an important position in the field of mechanical manufacturing and are widely used in many industries such as aerospace, automobile manufacturing, bearing production, and machining. They can grind outer cylindrical surfaces with high precision, ensuring that the workpieces achieve the required dimensional accuracy, shape accuracy, and surface finish. When processing workpieces, cylindrical grinding machines generally fix the workpieces on the machine body using fixtures, and then grind the workpieces using grinding wheels.

[0003] However, when clamping and positioning workpieces, existing fixtures generally use methods such as planar positioning and contour positioning. When faced with workpieces with complex shapes or high precision requirements, these positioning methods are difficult to ensure the precise position of the workpiece, which may lead to the workpiece being unstable after clamping, which will have a certain impact on the subsequent processing of the workpiece and reduce the overall processing efficiency after clamping.

[0004] Regarding the aforementioned technologies, the inventors believe that existing fixtures have the drawback of being inconvenient for centering and clamping workpieces. Therefore, they have proposed an eccentric fixture for cylindrical grinding machines to solve the above problems. Utility Model Content

[0005] To address the problem that existing fixtures are inconvenient for centering workpieces, this application provides an eccentric fixture for a cylindrical grinding machine.

[0006] The eccentric fixture for an external cylindrical grinding machine provided in this application adopts the following technical solution:

[0007] An eccentric fixture for an external cylindrical grinding machine includes a grinding machine body. A grinding head is provided on the top of the front end face of the grinding machine body. A worktable is fixedly installed in the middle of the front end face of the grinding machine body. A support base is installed on the upper surface of the worktable. Support rods are fixedly installed on the upper surface of the support base near the four corners. A placement frame is fixedly installed on the top of the support rods. Second gears are rotatably installed on the upper and lower ends of the inner wall of the placement frame near the four corners. An eccentric clamping component is installed on the top center of the second gear extending above the placement frame. A locking mechanism is also provided inside the placement frame to control the rotation of multiple second gears.

[0008] Preferably, the locking mechanism includes a first gear, which is rotatably mounted at the middle of the upper and lower ends of the inner wall of the placement frame, and a self-locking servo motor is installed on the upper surface of the support base extending from the bottom end of the first gear.

[0009] Preferably, the eccentric clamping piece upper surface edge is fixedly installed with a support rod away from the support shaft.

[0010] Preferably, the workbench upper surface is provided with a plurality of grooves, and the support base bottom end is welded with a plurality of convex strips, which are located in the grooves.

[0011] Preferably, the number of the second gears is four, and the first gear is located between the plurality of second gears and is engaged with the second gears.

[0012] To sum up, the present application has the following beneficial technical effects:

[0013] By installing the support base on the workbench, placing the workpiece on the upper surface of the placing rack, rotating the first gear to drive the plurality of second gears to rotate, and rotating the eccentric clamping piece to push the workpiece to be clamped and centered at the middle of the top end of the placing rack, the support rod supports the side edge of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the application embodiment;

[0015] Figure 2 is a schematic diagram of the structure of the workbench in the application embodiment;

[0016] Figure 3 is a schematic diagram of the structure of the placing rack in the application embodiment;

[0017] Figure 4 is a schematic diagram of the structure of the first gear in the application embodiment;

[0018] BRIEF DESCRIPTION OF DRAWINGS 1, grinder main body; 2, polishing head; 3, workbench; 4, support base; 5, support rod; 6, placing rack; 7, self-locking servo motor; 8, first gear; 9, second gear; 10, eccentric clamping piece; 11, support rod. DETAILED DESCRIPTION

[0019] The following will be described in detail below Figures 1-4 The application will be further described in detail.

[0020] The application embodiment discloses an eccentric clamp of an external cylindrical grinder. Referring to Figures 1-4The utility model relates to an eccentric clamp of external cylindrical grinding machine, including grinding machine body 1, the top of grinding machine body 1 front end face is provided with polishing head 2, grinding machine body 1 front end face middle part fixed mounting has workstation 3, workstation 3 upper surface installs support base 4, workstation 3 upper surface is equipped with a plurality of grooves, support base 4 bottom end is welded with a plurality of convex strips, and the convex strip is located in the recess, and workstation 3 and support base 4 are mutually embedded, and support base 4 upper surface is close to four edge corners and is fixedly installed with support rod 5, and support rod 5 top is fixedly installed with placing rack 6, and placing rack 6 inner wall upper and lower ends close to four edge corners are rotatably installed with no.

[0021] by installing support base 4 on workstation 3, placing workpiece on the upper surface of placing rack 6, make the synchronous rotation of a plurality of no.

[0022] Referring to Figure 3 and Figure 4 The locking mechanism includes a gear 8, a gear 8 rotatably mounted on the inner wall of the placing rack 6 at the upper and lower ends of the middle part, a self-locking servo motor 7 is installed at the bottom end of the gear 8 extending to the upper surface of the support base 4, the number of the second gear 9 is four, the gear 8 is located between the plurality of second gears 9, and the gear 8 and the second gear 9 are engaged with each other.

[0023] By starting the self-locking servo motor 7 to drive the gear 8 to rotate along the inside of the placing rack 6, the gear 8 rotates to drive the synchronous rotation of the plurality of second gears 9, which embodies the positioning and rotating control effect of the plurality of second gears 9.

[0024] The implementation principle of the eccentric clamp of the outer circle grinding machine is as follows: the supporting base 4 is installed on the workbench 3, the workpiece is placed on the upper surface of the placing rack 6, the self-locking servo motor 7 is started to drive the first gear 8 to rotate along the inside of the placing rack 6, the first gear 8 drives the plurality of second gears 9 to rotate synchronously, and the second gears 9 in rotation drive the eccentric clamping piece 10 to rotate, the eccentric clamping piece 10 rotates to clamp and center the workpiece at the middle part of the top end of the placing rack 6, the supporting rod 11 supports the side edge part of the workpiece, the workpiece is stably placed at the middle part of the top end of the placing rack 6, the grinding machine main body 1 is started to make the grinding head 2 act on the upper surface of the workpiece for grinding treatment, and the input end of the power supply of the self-locking servo motor 7 is electrically connected with the output end of the external power supply.

[0025] Finally, it should be pointed out that: first, in the description of the application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0026] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0027] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc.

[0028] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the scope of protection of the present application.

Claims

1. An eccentric clamp of an external cylindrical grinder, comprising a grinder main body (1), a polishing head (2) is arranged at the top of the front end face of the grinder main body (1), and a workbench (3) is fixedly installed at the middle of the front end face of the grinder main body (1), characterized in that: The upper surface of the workbench (3) is provided with a supporting base (4), the upper surface of the supporting base (4) is fixedly provided with a supporting rod (5) near each corner, the top of the supporting rod (5) is fixedly provided with a placing rack (6), the inner wall of the placing rack (6) is rotatably provided with a No. 9 gear (9) near each corner, the top of the No. 9 gear (9) is extended to the upper side of the placing rack (6) and is provided with an eccentric clamping part (10), and the placing rack (6) is further provided with a locking mechanism inside for controlling the rotation of the No. 9 gears (9).

2. The eccentric fixture of an external cylindrical grinder according to claim 1, characterized in that: The locking mechanism comprises a No. 8 gear (8), the No. 8 gear (8) is rotatably arranged on the inner wall of the placing rack (6) at the middle of the upper and lower ends, and the bottom of the No. 8 gear (8) is extended to the upper surface of the supporting base (4) and is provided with a self-locking servo motor (7).

3. The eccentric fixture of claim 1, wherein: The eccentric clamping part (10) is fixedly provided with a supporting rod (11) on the edge of the upper surface away from the supporting shaft.

4. The eccentric fixture of claim 1, wherein: The upper surface of the workbench (3) is provided with a plurality of grooves, the bottom of the supporting base (4) is welded with a plurality of convex strips, and the convex strips are located in the grooves, and the workbench (3) and the supporting base (4) are embedded with each other.

5. The eccentric fixture of claim 2, wherein: The number of the No. 9 gears (9) is four, the No. 8 gear (8) is located between the No. 9 gears (9), and the No. 8 gear (8) and the No. 9 gears (9) are engaged with each other.

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