Pressing mechanism for clamping auxiliary parts of machine tool

Abstract

The utility model relates to the technical field of hold-down mechanisms, in particular to a hold-down mechanism for clamping auxiliary parts of a machine tool, which comprises a hold-down mechanism, the hold-down mechanism comprises a sleeve, a micro telescopic cylinder, a lifting shaft, a screw rod, a sliding shaft and a pressing block, the bottom end of the screw rod is in threaded connection with the lifting shaft, the top end of the screw rod is rotatably connected with the pressing block, the micro telescopic cylinder is matched with the lifting shaft to drive the pressing block to ascend and descend, and therefore auxiliary pressing is conducted on a part to be clamped, and in the process, the arranged screw rod is matched with the sliding shaft to achieve fine control over the stroke of the pressing block; precise auxiliary pressing can be achieved according to the thickness of a to-be-pressed part, the situation that the workpiece is damaged due to looseness or too large force of the workpiece is avoided, meanwhile, the pressing block can be matched with the internal spiral sliding groove to rotate by 90 degrees in the movement process, and the situation that the pressing block hinders workpiece clamping when not conducting auxiliary pressing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressing mechanisms, and specifically relates to a pressing mechanism for clamping auxiliary parts of a machine tool. Background Technique

[0002] The pressing mechanism is a key device used to assist in fixing workpieces in machine tools and other processing equipment, ensuring the stability and accuracy of workpieces during the processing. Its main function is to prevent the workpiece from moving or deforming during clamping by providing appropriate clamping force. Common types of pressing mechanisms include: mechanical pressing mechanisms, pneumatic pressing mechanisms, hydraulic pressing mechanisms, and electric pressing mechanisms; each type of pressing mechanism has its specific application scenarios, advantages, and disadvantages. Selecting the appropriate pressing mechanism can effectively improve processing accuracy and production efficiency, while ensuring the safety of workpieces during processing.

[0003] The pressing mechanism can play an auxiliary clamping effect, but there are still certain problems: when some jigs clamp workpieces, the workpieces may warp. Therefore, an auxiliary pressing mechanism needs to be used to press the workpieces. However, the traditional auxiliary pressing mechanism is not convenient for adjusting the pressing stroke of the pressing mechanism, and it is easy to cause unstable workpiece pressing due to too large a pressing stroke, or damage the workpiece due to too small a pressing stroke; therefore, in view of the above current situation, there is an urgent need to develop a pressing mechanism for clamping auxiliary parts of a machine tool to overcome the deficiencies in current practical applications and meet the current requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pressing mechanism for clamping auxiliary parts of a machine tool to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pressing mechanism for clamping auxiliary parts of a machine tool, including a pressing mechanism, the pressing mechanism includes a sleeve, a micro telescopic cylinder, a lifting shaft, a screw, a sliding shaft, and a pressing block. The lifting shaft is arranged inside the sleeve and is slidably connected to the sleeve. The bottom end of the screw is threadedly connected to the lifting shaft, and the top end of the screw is rotatably connected to the pressing block. The sliding shaft is fixedly arranged at the bottom edge of the pressing block.

[0006] Preferably, the inside of the sleeve is hollow, the inner wall of the sleeve is provided with an inner spiral chute, and the side wall of the sleeve is provided with a through groove. Specifically, the torque angle of the inner spiral chute is 90 degrees.

[0007] Preferably, a slider is rotatably connected to the bottom end of the lifting shaft. A protrusion is provided on the side wall of the lifting shaft. A connecting rod is fixedly provided on one side of the slider. The end of the connecting rod is drivingly connected to the output shaft of the micro telescopic cylinder, and the connecting rod is located inside the through groove. An internal thread groove is formed at the middle position of the top of the lifting shaft, and a positioning sliding groove is formed at the edge of the top of the lifting shaft. Specifically, the provided connecting rod plays a transmission effect, and cooperates with the micro telescopic cylinder to drive the slider to lift in the sleeve.

[0008] Preferably, an internal hexagonal bolt head is welded to the top end of the screw rod. Specifically, the provided internal hexagonal bolt head can be used to screw the screw rod, and at the same time plays an anti detachment effect.

[0009] Preferably, a counterbore is formed at the edge of the top of the pressing block.

[0010] Preferably, the protrusion is adapted to the internal spiral sliding groove. Specifically, the provided protrusion cooperates with the internal spiral sliding groove to force the lifting shaft to rotate 90 degrees during the lifting process.

[0011] Preferably, the bottom end of the screw rod is adapted to the internal thread groove of the lifting shaft, and the top end of the screw rod is adapted to the counterbore of the pressing block through the internal hexagonal bolt head. Specifically, the distance that the screw rod extends into the lifting shaft can be changed by rotating the internal hexagonal bolt head, so as to control the distance between the pressing block and the top end of the lifting shaft.

[0012] Preferably, the sliding shaft is slidably connected to the positioning sliding groove. Specifically, through the mutual cooperation between the provided sliding shaft and the positioning sliding groove, it can be ensured that the pressing block always maintains the same horizontal angle as the lifting shaft during the lifting process, and its free rotation is avoided.

[0013] Compared with the prior art, the utility model provides a pressing mechanism for auxiliary part clamping of a machine tool, which has the following beneficial effects:

[0014] It uses a micro telescopic cylinder to cooperate with a lifting shaft to drive a pressing block to lift, so as to assist in pressing the part to be clamped. During this process, the provided screw rod cooperates with the sliding shaft to realize the refined control of the stroke of the pressing block, and can realize precise auxiliary pressing according to the thickness of the part to be pressed, avoiding loosening of the workpiece or damage to the workpiece due to excessive force. At the same time, the pressing block will rotate 90 degrees in cooperation with the internal spiral sliding groove during the movement process, avoiding the pressing block from hindering the workpiece clamping when it does not perform auxiliary pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts:

[0016] Figure 1 This is a front view structural schematic diagram of the present utility model;

[0017] Figure 2 This is a side vertical sectional view of the pressing mechanism of the present utility model;

[0018] Figure 3 This is a schematic diagram of the positional relationship between the sleeve and the lifting shaft of the present utility model;

[0019] Figure 4 This is a partial sectional view of the sleeve of the present utility model;

[0020] Figure 5 This is a structural schematic diagram of the lifting shaft of the present utility model;

[0021] Figure 6 This is a structural schematic diagram of the screw of the present utility model.

[0022] In the figure: 10, pressing mechanism; 101, sleeve; 1011, inner spiral chute; 1012, through slot; 102, micro telescopic cylinder; 103, lifting shaft; 1031, slider; 1032, protrusion; 1033, connecting rod; 1034, internal thread groove; 1035, positioning chute; 104, screw; 1041, internal hexagonal bolt head; 105, sliding shaft; 106, pressing block; 1061, counterbore. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Embodiment:

[0026] Please refer to Figures 1-6, the present utility model provides a technical solution: a pressing mechanism for clamping auxiliary parts of a machine tool, including a pressing mechanism 10, the pressing mechanism 10 includes a sleeve 101, a micro telescopic cylinder 102, a lifting shaft 103, a screw 104, a sliding shaft 105 and a pressing block 106. The lifting shaft 103 is arranged inside the sleeve 101 and is slidably connected with the sleeve 101. The bottom end of the screw 104 is threadedly connected with the lifting shaft 103, and the top end of the screw 104 is rotatably connected with the pressing block 106. The sliding shaft 105 is fixedly arranged at the bottom edge of the pressing block 106.

[0027] Preferably, the inside of the sleeve 101 is hollow, the inner wall of the sleeve 101 is provided with an inner spiral chute 1011, and the side wall of the sleeve 101 is provided with a through groove 1012. Specifically, the torque angle of the inner spiral chute 1011 is 90 degrees.

[0028] Preferably, a slider 1031 is rotatably connected to the bottom end of the lifting shaft 103, a protrusion 1032 is arranged on the side wall of the lifting shaft 103, a connecting rod 1033 is fixedly arranged on one side of the slider 1031, the end of the connecting rod 1033 is drivingly connected with the output shaft of the micro telescopic cylinder 102, and the connecting rod 1033 is located inside the through groove 1012. An internal thread groove 1034 is opened at the middle position of the top of the lifting shaft 103, and a positioning chute 1035 is opened at the top edge of the lifting shaft 103. Specifically, the arranged connecting rod 1033 plays a transmission effect, and cooperates with the micro telescopic cylinder 102 to drive the slider 1031 to lift inside the sleeve 101.

[0029] Preferably, an internal hexagonal bolt head 1041 is welded to the top end of the screw 104. Specifically, the arranged internal hexagonal bolt head 1041 can be used to screw the screw 104 and at the same time play an anti - detachment effect.

[0030] Preferably, a counterbore 1061 is opened at the top edge of the pressing block 106.

[0031] Preferably, the protrusion 1032 is adapted to the inner spiral chute 1011. Specifically, the arranged protrusion 1032 cooperates with the inner spiral chute 1011 to force the lifting shaft 103 to rotate 90 degrees during the lifting process.

[0032] Preferably, the bottom end of the screw 104 is adapted to the internal thread groove 1034 of the lifting shaft 103, and the top end of the screw 104 is adapted to the counterbore 1061 of the pressing block 106 through the internal hexagonal bolt head 1041. Specifically, the distance that the screw 104 extends into the lifting shaft 103 can be changed by rotating the internal hexagonal bolt head 1041, so as to control the distance between the pressing block 106 and the top end of the lifting shaft 103.

[0033] Preferably, the sliding shaft 105 is slidably connected to the positioning chute 1035. Specifically, through the mutual cooperation between the sliding shaft 105 and the positioning chute 1035, it can be ensured that the pressing block 106 always maintains the same horizontal angle as the lifting shaft 103 during the lifting process, preventing it from rotating freely.

[0034] Working principle: When in use, it is assembled on the edge of the jig. When auxiliary clamping of a part is required, first place the part in the clamping position, and then start the micro telescopic cylinder 102 of the pressing mechanism 10. The micro telescopic cylinder 102 drives the slider 1031 and the lifting shaft 103 to descend in cooperation with the connecting rod 1033, and then drives the pressing block 106 to descend in cooperation with the screw 104, achieving an auxiliary pressing effect on the part. It should be noted here that there is a protrusion 1032 on the outside of the lifting shaft 103. The protrusion 1032 cooperates with the internal spiral chute 1011 of the sleeve 101 to make the lifting shaft 103 rotate 90 degrees while descending, thereby driving the pressing block 106 to rotate 90 degrees, making the end of the pressing block 106 face the center position of the jig. The hexagon socket head 1041 can be turned to drive the screw 104 to expand and contract, thereby adjusting the distance between the pressing block 106 and the top end of the lifting shaft 103, realizing the adjustment of the lifting stroke of the pressing block 106, and finally achieving the effect of controlling the pressing force.

[0035] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A clamping mechanism for the auxiliary part clamping of a machine tool, characterized in that: Comprising a pressing mechanism (10), the pressing mechanism (10) includes a sleeve (101), a micro telescopic cylinder (102), a lifting shaft (103), a screw (104), a sliding shaft (105) and a pressing block (106). The lifting shaft (103) is arranged inside the sleeve (101) and is slidably connected to the sleeve (101). The bottom end of the screw (104) is threadedly connected to the lifting shaft (103). The top end of the screw (104) is rotatably connected to the pressing block (106). The sliding shaft (105) is fixedly arranged at the bottom edge of the pressing block (106).

2. The clamping mechanism for assisting in clamping of machine tool auxiliary parts according to claim 1, characterized in that: The inside of the sleeve (101) is hollow. An internal spiral chute (1011) is provided on the inner wall of the sleeve (101). A through groove (1012) is provided on the side wall of the sleeve (101).

3. The clamping mechanism for assisting in clamping of machine tool auxiliary parts according to claim 1, characterized in that: A slider (1031) is rotatably connected to the bottom end of the lifting shaft (103). A protrusion (1032) is provided on the side wall of the lifting shaft (103). A connecting rod (1033) is fixedly arranged on one side of the slider (1031). The end of the connecting rod (1033) is drivingly connected to the output shaft of the micro telescopic cylinder (102). And the connecting rod (1033) is located inside the through groove (1012). An internal thread groove (1034) is provided at the middle position of the top of the lifting shaft (103). A positioning chute (1035) is provided at the edge of the top of the lifting shaft (103).

4. A clamping mechanism for clamping auxiliary parts of a machine tool according to claim 1, characterized in that: An internal hexagonal bolt head (1041) is welded to the top end of the screw (104).

5. The clamping mechanism for auxiliary part clamping of a machine tool according to claim 1, characterized in that: A counterbore (1061) is provided at the edge of the top of the pressing block (106).

6. The clamping mechanism for assisting in clamping of machine tool auxiliary parts according to claim 3, characterized in that: The protrusion (1032) is adapted to the internal spiral chute (1011).

7. A clamping mechanism for assisting in clamping of machine tool auxiliary parts according to claim 1, characterized in that: The bottom end of the screw (104) is adapted to the internal thread groove (1034) of the lifting shaft (103). The top end of the screw (104) is adapted to the counterbore (1061) of the pressing block (106) through the internal hexagonal bolt head (1041).

8. A clamping mechanism for clamping auxiliary parts of a machine tool according to claim 1, characterized in that: The sliding shaft (105) is slidably connected to the positioning chute (1035).

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