Quick mounting mechanism for clamp holder of grinding and polishing machine

Abstract

The utility model relates to the technical field of polishing and burnishing machines, in particular to a polishing and burnishing machine holder quick-mounting mechanism which comprises a connecting rod bolted on a holder, the connecting rod is coaxially embedded into a mounting sleeve in a sliding mode, and a limiting groove is formed in the top end of the connecting rod. The mounting sleeve is fixed on the lifting main shaft; a pin shaft and a plurality of movable balls which are uniformly distributed are arranged in the mounting sleeve, and the pin shaft is embedded into the limiting groove; the mounting sleeve is slidably sleeved with a locking sleeve, the locking sleeve is used for pushing the balls to be embedded into the clamping grooves, and the clamping grooves are linear and formed in the outer wall of the connecting rod. And the connecting rod is configured to be locked between the pin shaft and the ball. Through cooperation of the pin shaft and the limiting groove, rapid positioning of the position of the clamping groove can be guaranteed, it is guaranteed that the ball can be embedded into the clamping groove so as to complete rapid replacement of the connecting rod, the overall structure is simple, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing machines, in particular to a quick-installation mechanism for a clamp of a grinding and polishing machine. Background Art

[0002] When a grinder and polisher is grinding and polishing a sample, the sample is usually installed inside a clamping plate, and the top of the sample is pressed against the lower end of a lead screw arranged above the sample to increase the force between the bottom of the sample and the grinding plate. In the prior art, the clamping plate, also known as a clamp, is often locked on the lifting spindle by flange connection or bolting, which is extremely inconvenient when replacing the clamping plate.

[0003] In this regard, China's invention patent CN115723033A high-precision center grinding and polishing machine provides a clamping plate quick-loading mechanism, including a connecting piece arranged on the top of the clamping plate and a sleeve assembled on the lower end of the lifting spindle, the connecting piece has a connecting rod, and a card-mounting groove is opened at the upper end of the connecting rod; a connecting seat is arranged at the bottom end of the sleeve, the interior of the connecting seat matches the connecting rod, a ball hole corresponding to the card-mounting groove is opened on the connecting seat, and a ball is movably assembled inside the ball hole, a slider is slidably arranged inside the sleeve, and a push cylinder for pushing the ball to embed it into the card-mounting groove is arranged at the bottom of the slider, the top of the slider is elastically supported between the end of the lifting spindle, and an air intake cavity is arranged below the slider. The cam is connected to the air slip ring mechanism through a pipeline; the clamping disk is assembled inside the connecting seat at the lower end of the lifting spindle through a connecting piece; the slider pushes the ball bearing through the push cylinder under the action of elastic force to embed it into the clamping groove, locks the connecting piece and the connecting seat, and fixes the clamping disk at the lower end of the lifting spindle; when the clamping disk needs to be replaced, high-pressure gas is introduced into the air inlet cavity, the slider drives the push cylinder to move upward, the push cylinder no longer blocks the movement of the ball bearing, and the ball bearing can slide outward from the clamping groove, at which time the connecting piece and the connecting seat can be separated, and the clamping disk can be removed from the lower end of the lifting spindle; the locking and releasing between the connecting seat and the connecting piece can be achieved by controlling the air pressure inside the air inlet cavity, and the replacement of the clamping disk can be completed quickly.

[0004] However, the structure is relatively complex and the manufacturing cost is high, so there is an urgent need to improve the clamping plate quick-loading mechanism. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings in the prior art. To this end, the utility model provides a quick-install mechanism for a grinder and polisher clamp, which can ensure rapid replacement of the clamp and reduce manufacturing costs.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a quick-loading mechanism of a grinder and polisher clamp, comprising a connecting rod bolted to the clamp, a limiting groove being provided at the top end of the connecting rod; the connecting rod is coaxially slidably embedded in a mounting sleeve, and the mounting sleeve is fixed on a lifting spindle; a pin shaft and a plurality of evenly distributed movable balls are provided in the mounting sleeve, and the pin shaft is embedded in the limiting groove; the outer sliding sleeve of the mounting sleeve is provided with a locking sleeve, and the locking sleeve is used to push the balls to be embedded in a card-mounting groove, and the card-mounting groove is linear and is provided on the outer wall of the connecting rod; the connecting rod is configured to be locked between the pin shaft and the balls.

[0007] Furthermore, an annular groove is provided on the inner wall of the bottom of the locking sleeve, the annular groove matches the ball, and a chamfer is provided on the top of the annular groove.

[0008] Furthermore, a step is provided on the top of the installation sleeve, a retaining ring is provided above the step, and the retaining ring is arranged on the installation sleeve; and the top of the locking sleeve slides between the step and the retaining ring.

[0009] Furthermore, the direction of the limiting groove is parallel to the direction of the clamping groove.

[0010] Furthermore, the retaining ring is a shaft retaining ring.

[0011] Furthermore, the mounting sleeve is provided with a through hole matching the ball, the inner end of the through hole is provided with an annular retaining ring, and the inner diameter of the annular retaining ring is smaller than the ball diameter of the ball.

[0012] Furthermore, the number of the balls is 2.

[0013] Furthermore, a sealing ring is provided on the connecting rod, and the sealing ring is located between the mounting sleeve and the connecting rod; the sealing ring is located below the mounting groove.

[0014] Furthermore, an axial hole for nesting the lifting spindle is provided in the middle of the top of the mounting sleeve, and a plurality of threaded holes for connecting set screws are provided on the side walls of the axial hole.

[0015] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation of the pin shaft and the limit groove, the fast positioning of the card slot can be ensured, and the locking sleeve pushes the ball to move, ensuring that the ball can be embedded in the card slot to complete the fast replacement of the connecting rod. The overall structure is simple, easy to operate, and reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is an axial cross-sectional view of the pin shaft of the utility model.

[0018] Figure 3 It is a radial cross-sectional view of the pin shaft of the present utility model.

[0019] Figure 4 This is a usage state diagram of the utility model.

[0020] Among them: 1. Clamp; 2. Connecting rod; 3. Mounting sleeve; 4. Locking sleeve; 5. Retaining ring; 6. Pin shaft; 7. Ball; 8. Sealing ring; 21. Mounting groove; 22. Limiting groove; 31. Threaded hole; 32. Through hole; 33. Annular retaining ring; 41. Annular groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0023] See also Figures 1 to 4 The utility model provides a quick-install mechanism for a grinder and polisher clamp, comprising a connecting rod 2 bolted to a clamp 1, the connecting rod 2 coaxially slidingly embedded in a mounting sleeve 3, a limiting groove 22 being provided at the top of the connecting rod 2; the mounting sleeve 3 being fixed on a lifting spindle; a pin 6 and a plurality of evenly distributed movable balls 7 being arranged in the mounting sleeve 3, the pin 6 being embedded in the limiting groove 22; a locking sleeve 4 being provided on the outer sliding sleeve of the mounting sleeve 3, the locking sleeve 4 being used to push the balls 7 to be embedded in a card-mounting groove 21, the card-mounting groove 21 being linear and arranged on the outer wall of the connecting rod 2; the connecting rod 2 being configured to be locked between the pin 6 and the balls 7. Through the cooperation of the pin 6 and the limiting groove 22, the fast positioning of the card-mounting groove 21 can be ensured, and the balls 7 can be embedded in the card-mounting groove 21, so as to complete the fast replacement of the connecting rod 2.

[0024] Preferably, the inner wall of the bottom of the locking sleeve 4 is provided with an annular groove 41, the annular groove 41 matches the ball 7, and the top of the annular groove 41 is provided with a chamfer. When the locking sleeve 4 moves downward, the chamfer can push the ball 7 to move.

[0025] As an embodiment of the utility model, the top of the installation sleeve 3 is provided with a step, and a retaining ring 5 is provided above the step. The retaining ring 5 is arranged on the installation sleeve 3; the top of the locking sleeve 4 slides between the step and the retaining ring 5. Further, as Figure 2 As shown, the top inner wall of the locking sleeve 4 is provided with an annular boss, and the annular boss slides between the step and the retaining ring 5, and the details are not repeated here.

[0026] Preferably, the retaining ring 5 is a shaft retaining ring.

[0027] The retaining ring 5 here can also be put on the installation sleeve 3 and welded to the installation sleeve 3 as a whole after the locking sleeve 4, the ball 7 and the connecting rod 2 and other components are assembled. The details are not repeated here.

[0028] Preferably, the number of the balls 7 is two.

[0029] As an embodiment of the present utility model, the direction of the limiting groove 22 is parallel to the direction of the clamping groove 21 to facilitate production and processing.

[0030] As an embodiment of the utility model, the mounting sleeve 3 is provided with a through hole 32 matching the ball 7, and the inner end of the through hole 32 is provided with an annular retaining ring 33, and the inner diameter of the annular retaining ring 33 is smaller than the ball diameter of the ball 7, thereby ensuring that the ball 7 is between the annular groove 41 and the annular retaining ring 33 and will not fall off the mounting sleeve 3.

[0031] As an embodiment of the utility model, a sealing ring 8 is provided on the connecting rod 2 , and the sealing ring 8 is located between the mounting sleeve 3 and the connecting rod 2 ; the sealing ring 8 is located below the clamping groove 21 .

[0032] As an embodiment of the present utility model, an axial hole for nesting the lifting spindle is provided in the middle of the top of the mounting sleeve 3, and a plurality of threaded holes 31 for connecting set screws are provided on the side wall of the axial hole.

[0033] The working process of the utility model is as follows: the bottom of the connecting rod 2 is bolted to the clamp 1, the locking sleeve 4 is lifted to contact the retaining ring 5, and the connecting rod 2 is inserted into the mounting sleeve 3 and pressed against the lower end of the shaft hole. At this time, the pin 6 is embedded in the limiting groove 22; then, the locking sleeve 4 is pushed down to the step at the top of the mounting sleeve 3. In this process, the chamfer on the annular groove 41 at the bottom of the locking sleeve 4 pushes the ball 7 to move until the ball 7 is embedded in the card slot 21. Figure 3 As shown, the locking process of the connecting rod 2 is completed, that is, the connecting rod 2 is locked between the ball 7 and the pin 6.

[0034] When the holder 1 needs to be replaced, Figure 4 As shown, the locking sleeve 4 is lifted until it contacts the retaining ring 5, and the connecting rod 2 is downwardly separated from the mounting sleeve 3. During this process, the connecting rod 2 pushes the ball 7 to the annular groove 41, completing the unloading of the clamp 1; and then according to the locking process of the connecting rod 2, the new clamp 1 is loaded, thereby ensuring the replacement efficiency of the clamp 1.

[0035] The utility model can be summarized in other specific forms that do not violate the spirit or main features of the utility model. Therefore, no matter from which point of view, the above embodiments of the utility model can only be regarded as an explanation of the utility model and cannot limit the utility model. The claims indicate the scope of the utility model, while the above description does not indicate the scope of the utility model. Therefore, any changes within the meaning and scope equivalent to the claims of the utility model should be considered to be included in the scope of the claims of the utility model.

Claims

1. A quick-install mechanism for a grinder and polisher clamp, comprising a connecting rod (2) bolted to a clamp (1), characterized in that: The top end of the connecting rod (2) is provided with a limiting groove (22); the connecting rod (2) is coaxially slidably embedded in the mounting sleeve (3), and the mounting sleeve (3) is fixed on the lifting main shaft; a pin shaft (6) and a plurality of evenly distributed movable balls (7) are provided inside the mounting sleeve (3), and the pin shaft (6) is embedded in the limiting groove (22); the outer sliding sleeve of the mounting sleeve (3) is provided with a locking sleeve (4), and the locking sleeve (4) is used to push the balls (7) to be embedded in the clamping groove (21), and the clamping groove (21) is linear and is provided on the outer wall of the connecting rod (2); the connecting rod (2) is configured to be locked between the pin shaft (6) and the balls (7).

2. The quick-install mechanism for the grinder and polisher clamp according to claim 1, characterized in that: An annular groove (41) is provided on the inner wall of the bottom of the locking sleeve (4), the annular groove (41) matches the ball (7), and a chamfer is provided on the top of the annular groove (41).

3. The quick-install mechanism for the grinder and polisher clamp according to claim 2, characterized in that: The top of the installation sleeve (3) is provided with a step, and a retaining ring (5) is provided above the step, and the retaining ring (5) is arranged on the installation sleeve (3); the top of the locking sleeve (4) slides between the step and the retaining ring (5).

4. The quick-install mechanism for the grinder and polisher clamp according to claim 3, characterized in that: The direction of the limiting groove (22) is parallel to the direction of the clamping groove (21).

5. The quick-install mechanism for the grinder and polisher clamp according to claim 3, characterized in that: The retaining ring (5) is a shaft retaining ring.

6. The quick-install mechanism for the grinder and polisher clamp according to claim 3, characterized in that: The mounting sleeve (3) is provided with a through hole (32) matching the ball (7), and an annular retaining ring (33) is provided at the inner end of the through hole (32), wherein the inner diameter of the annular retaining ring (33) is smaller than the ball diameter of the ball (7).

7. The quick-install mechanism for the grinder and polisher clamp according to claim 6, characterized in that: The number of the balls (7) is 2.

8. The quick-install mechanism for the grinder and polisher clamp according to claim 7, characterized in that: A sealing ring (8) is provided on the connecting rod (2); the sealing ring (8) is located between the mounting sleeve (3) and the connecting rod (2); and the sealing ring (8) is located below the mounting groove (21).

9. The quick-install mechanism for the grinder and polisher clamp according to claim 1, characterized in that: An axial hole for nesting the lifting spindle is provided in the middle of the top of the mounting sleeve (3), and a plurality of threaded holes (31) for connecting set screws are provided on the side wall of the axial hole.

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