Workpiece clamping mechanism

Abstract

The utility model discloses a workpiece clamping mechanism which comprises a base, a connecting seat, a first lifting block, a second lifting block, a first sliding block, a second sliding block, a first fixing seat, a second fixing seat, a linear moving mechanism and a positioning seat, the connecting seat is arranged on the bottom face of the base, and the first fixing seat, the second fixing seat and the positioning seat are arranged on the top face of the base. The side wall of the first sliding block is rotationally connected with a first rolling wheel, the first end of the first pressing block is connected with the top end of the first sliding block, the first end of the second pressing block is connected with the top end of the second sliding block, the moving end of the linear moving mechanism is connected with the first lifting block and the second lifting block, and the positioning base is provided with a first abutting face and a second abutting face which are perpendicular to each other. The first profiling protrusion can extrude the first rolling wheel and drive the first sliding block to be away from the workpiece, and the second profiling protrusion can extrude the second rolling wheel and drive the second sliding block to be away from the workpiece. The clamping device is good in clamping effect.

Description

Technical Field

[0001] The utility model relates to a fixture, in particular to a workpiece clamping mechanism. Background Art

[0002] With the development of the times, industrial production technology is also developing rapidly, and automated equipment is increasingly applied in industrial production. At present, during the processing of workpieces, it is necessary to clamp the workpieces for subsequent processing. However, the existing fixtures usually can only clamp the workpieces from one direction, and the workpieces are prone to fall off during the processing, resulting in a decrease in the yield rate. It lacks competitiveness in the industrial field that emphasizes cost reduction and efficiency improvement, and is not conducive to large-scale promotion and industrialized production. Content of the Utility Model

[0003] In order to overcome the above defects, the utility model provides a workpiece clamping mechanism, which has the advantage of good clamping effect.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a workpiece clamping mechanism, comprising: a base, a connecting seat, a first lifting block, a second lifting block, a first slider, a second slider, a first fixing seat, a second fixing seat, a linear moving mechanism and a positioning seat. The connecting seat is arranged on the bottom surface of the base, and the first fixing seat, the second fixing seat and the positioning seat are arranged on the top surface of the base. A first elastic member is arranged between the first slider and the first fixing seat. A first roller is rotatably connected to the side wall of the first slider. The first end of the first pressing block is connected to the top end of the first slider. A second elastic member is arranged between the second slider and the second fixing seat. A second roller is rotatably connected to the side wall of the second slider. The first end of the second pressing block is connected to the top end of the second slider. A first profiling protrusion is arranged on the top of the first lifting block, and a second profiling protrusion is arranged on the top of the second lifting block. The moving end of the linear moving mechanism is connected to the first lifting block and the second lifting block. The positioning seat is provided with a first abutting surface and a second abutting surface perpendicular to each other. The side wall of the workpiece can abut against the first abutting surface and the second abutting surface. The first elastic member can drive the first slider to approach the workpiece along the X-axis and drive the second end of the first pressing block to squeeze the side wall of the workpiece. The second elastic member can drive the second slider to approach the workpiece along the Y-axis and drive the second end of the second pressing block to squeeze the side wall of the workpiece. The first lifting block and the second lifting block can move back and forth along the Z-axis under the drive of the linear moving mechanism. The first profiling protrusion can squeeze the first roller and drive the first slider away from the workpiece. The second profiling protrusion can squeeze the second roller and drive the second slider away from the workpiece.

[0005] Optionally, the positioning seat is detachably connected to the top surface of the base through a first bolt. The first pressing block is strip-shaped, and the first end of the first pressing block is detachably connected to the top end of the first slider through a second bolt. The second pressing block is strip-shaped, and the first end of the second pressing block is detachably connected to the top end of the second slider through a third bolt.

[0006] Optionally, it further includes a slide rail and a connecting member. The slide rail is fixed to the connecting seat, the slide rail is perpendicular to the top surface of the base, the connecting member is slidably connected to the slide rail, the bottom end of the first lifting block is detachably connected to the top surface of the connecting member through a fourth bolt, and the bottom end of the second lifting block is detachably connected to the top surface of the connecting member through a fifth bolt.

[0007] Optionally, it further includes a first connecting shaft, a second connecting shaft, a first bearing, a second bearing, a first gasket and a second gasket. The first end of the first connecting shaft is threadedly connected to the side wall of the first slider. The first gasket and the inner ring of the first bearing are sleeved on the first connecting shaft. The first roller is sleeved on the outer ring of the first bearing. The second end of the first connecting shaft protrudes radially with a first limiting protrusion, and the first limiting protrusion can abut against the first end of the inner ring of the first bearing. The two ends of the first gasket respectively abut against the side wall of the first slider and the second end of the inner ring of the first bearing. The first end of the second connecting shaft is threadedly connected to the side wall of the second slider. The second gasket and the inner ring of the second bearing are sleeved on the second connecting shaft. The second roller is sleeved on the outer ring of the second bearing. The second end of the second connecting shaft protrudes radially with a second limiting protrusion, and the second limiting protrusion can abut against the first end of the inner ring of the second bearing. The two ends of the second gasket respectively abut against the side wall of the second slider and the second end of the inner ring of the second bearing.

[0008] Optionally, it further includes a limiting block. The first end of the limiting block is fixed to the side wall of the connecting seat, and the bottom end of the connecting member can abut against the second end of the limiting block.

[0009] Optionally, the first elastic member is a first compression spring, and the second elastic member is a second compression spring.

[0010] Optionally, it further includes a first optical axis and a second optical axis. The end of the first optical axis is fixed to the first fixed seat. A first connection hole is formed through the side wall of the first slider, and a first linear bearing is arranged in the first connection hole. The first linear bearing is slidably connected to the first optical axis. The first compression spring is sleeved on the first optical axis, and the two ends of the first compression spring respectively abut against the first slider and the first fixed seat. The end of the second optical axis is fixed to the second fixed seat. The first optical axis and the second optical axis are perpendicular to each other but both parallel to the top surface of the base. A second connection hole is formed through the side wall of the second slider, and a second linear bearing is arranged in the second connection hole. The second linear bearing is slidably connected to the second optical axis. The second compression spring is sleeved on the second optical axis, and the two ends of the second compression spring respectively abut against the second slider and the second fixed seat.

[0011] Optionally, the linear moving mechanism is a cylinder, and the cylinder rod of the cylinder is the moving end of the linear moving mechanism.

[0012] Optionally, a first buffer pad is provided at the second end of the first pressing block, a second buffer pad is provided at the second end of the second pressing block, the outer peripheral walls of the first roller and the second roller are both made of polyurethane, and the positioning seat is made of antistatic material.

[0013] The beneficial technical effects of the present utility model are as follows: The workpiece clamping mechanism includes: a base, a connecting seat, a first lifting block, a second lifting block, a first slider, a second slider, a first fixing seat, a second fixing seat, a linear movement mechanism, and a positioning seat. When in use, first place the workpiece on the positioning seat and press the side wall of the workpiece against the first abutting surface and the second abutting surface. Then, the first slider is driven by the first elastic member to approach the workpiece, and the end of the first pressing block squeezes the workpiece along the X-axis. The second slider is driven by the second elastic member to approach the workpiece, and the end of the second pressing block squeezes the workpiece along the Y-axis. The workpiece is clamped and positioned by squeezing the workpiece in two directions of the X-axis and the Y-axis. When it is necessary to remove the workpiece, the first lifting block and the second lifting block are jacked up along the Z-axis under the drive of the linear movement mechanism. The first profiling block at the top of the first lifting block squeezes the first roller, and the first slider moves away from the workpiece under the extrusion of the first profiling block and compresses the first elastic member. The second profiling block at the top of the second lifting block squeezes the second roller, and the second slider moves away from the workpiece under the extrusion of the second profiling block and compresses the second elastic member. At this time, the workpiece can be released. Since the workpiece is squeezed in two directions of the X-axis and the Y-axis at the same time, compared with fixing in one direction, the clamping effect is better. It has the advantage of good clamping effect. Description of the Drawings

[0014] Figure 1 is the top view of the whole machine of the present utility model;

[0015] Figure 2 is the front view of the whole machine of the present utility model;

[0016] Figure 3 is the side view of the whole machine of the present utility model;

[0017] Wherein:

[0018] 1. Base; 2. Connecting seat; 3. First lifting block; 4. Second lifting block; 5. First slider; 6. Second slider; 7. First fixing seat; 8. Second fixing seat; 9. Positioning seat; 10. First pressing block; 11. Second pressing block; 12. First roller; 13. Second roller; 14. Connecting member; 15. Workpiece. Detailed Embodiments

[0019] In order to be able to more clearly understand the technical means of the present utility model and to be implemented in accordance with the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0020] This specific embodiment details the workpiece clamping mechanism described in the present application. As Figures 1 - 3 shown, the workpiece clamping mechanism includes: a base 1, a connecting seat 2, a first lifting block 3, a second lifting block 4, a first slider 5, a second slider 6, a first fixing seat 7, a second fixing seat 8, a linear movement mechanism, and a positioning seat 9. The connecting seat 2 is arranged on the bottom surface of the base 1, and the first fixing seat 7, the second fixing seat 8, and the positioning seat 9 are arranged on the top surface of the base 1. A first elastic member is arranged between the first slider 5 and the first fixing seat 7. A first roller 12 is rotatably connected to the side wall of the first slider 5. The first end of a first pressing block 10 is connected to the top end of the first slider 5. A second elastic member is arranged between the second slider 6 and the second fixing seat 8. A second roller 13 is rotatably connected to the side wall of the second slider 6. The first end of a second pressing block 11 is connected to the top end of the second slider 6. A first profiling protrusion is arranged on the top of the first lifting block 3, and a second profiling protrusion is arranged on the top of the second lifting block 4. The moving end of the linear movement mechanism is connected to the first lifting block 3 and the second lifting block 4. The positioning seat 9 is provided with a first abutting surface and a second abutting surface that are perpendicular to each other. The side wall of the workpiece 15 can abut against the first abutting surface and the second abutting surface. The first elastic member can drive the first slider 5 to approach the workpiece 15 along the X-axis and drive the second end of the first pressing block 10 to squeeze the side wall of the workpiece 15. The second elastic member can drive the second slider 6 to approach the workpiece 15 along the Y-axis and drive the second end of the second pressing block 11 to squeeze the side wall of the workpiece 15. The first lifting block 3 and the second lifting block 4 can move back and forth along the Z-axis under the drive of the linear movement mechanism. The first profiling protrusion can squeeze the first roller 12 and drive the first slider 5 away from the workpiece 15. The second profiling protrusion can squeeze the second roller 13 and drive the second slider 6 away from the workpiece 15. During use, first place the workpiece on the positioning seat 9 and abut the side wall of the workpiece against the first abutting surface and the second abutting surface. Then, the first slider 5 approaches the workpiece under the drive of the first elastic member, and the end of the first pressing block 10 squeezes the workpiece along the X-axis. The second slider 6 approaches the workpiece under the drive of the second elastic member, and the end of the second pressing block 11 squeezes the workpiece along the Y-axis. The workpiece is clamped and positioned by squeezing the workpiece in two directions of the X-axis and the Y-axis. When the workpiece needs to be removed, the first lifting block 3 and the second lifting block 4 are jacked up along the Z-axis under the drive of the linear movement mechanism. The first profiling block on the top of the first lifting block 3 squeezes the first roller 12, and the first slider 5 moves away from the workpiece under the squeeze of the first profiling block and compresses the first elastic member. The second profiling block on the top of the second lifting block 4 squeezes the second roller 13, and the second slider 6 moves away from the workpiece under the squeeze of the second profiling block and compresses the second elastic member. At this time, the workpiece can be released. Since the workpiece is squeezed in two directions of the X-axis and the Y-axis at the same time, compared with fixing in one direction, the clamping effect is better. It has the advantage of good clamping effect. In this embodiment, the X-axis and the Y-axis are perpendicular to each other but both parallel to the ground, and the Z-axis in this embodiment is perpendicular to the ground.

[0021] Optionally, in this embodiment, the positioning seat 9 is detachably connected to the top surface of the base 1 by a first bolt. The first pressing block 10 is strip-shaped, and the first end of the first pressing block 10 is detachably connected to the top end of the first slider 5 by a second bolt. The second pressing block 11 is strip-shaped, and the first end of the second pressing block 11 is detachably connected to the top end of the second slider 6 by a third bolt. By replacing the positioning seat 9, the first pressing block 10, and the second pressing block 11 with different sizes, workpieces of different sizes can be adapted.

[0022] Optionally, in this embodiment, it further includes a slide rail and a connecting member 14. The slide rail is fixed to the connecting seat 2, the slide rail is perpendicular to the top surface of the base 1, the connecting member 14 is slidably connected to the slide rail, and the bottom end of the first lifting block 3 is detachably connected to the top surface of the connecting member 14 by a fourth bolt. The bottom end of the second lifting block 4 is detachably connected to the top surface of the connecting member 14 by a fifth bolt.

[0023] Optionally, in this embodiment, it further includes a first connecting shaft, a second connecting shaft, a first bearing, a second bearing, a first gasket, and a second gasket. The first end of the first connecting shaft is threadedly connected to the side wall of the first slider 5. The first gasket and the inner ring of the first bearing are sleeved on the first connecting shaft. The first roller 12 is sleeved on the outer ring of the first bearing. The second end of the first connecting shaft protrudes radially with a first limiting protrusion, and the first limiting protrusion can abut against the first end of the inner ring of the first bearing. The two ends of the first gasket respectively abut against the side wall of the first slider 5 and the second end of the inner ring of the first bearing. The first end of the second connecting shaft is threadedly connected to the side wall of the second slider 6. The second gasket and the inner ring of the second bearing are sleeved on the second connecting shaft. The second roller 13 is sleeved on the outer ring of the second bearing. The second end of the second connecting shaft protrudes radially with a second limiting protrusion, and the second limiting protrusion can abut against the first end of the inner ring of the second bearing. The two ends of the second gasket respectively abut against the side wall of the second slider 6 and the second end of the inner ring of the second bearing.

[0024] Optionally, in this embodiment, it further includes a limiting block. The first end of the limiting block is fixed to the side wall of the connecting seat 2, and the bottom end of the connecting member 14 can abut against the second end of the limiting block. The limiting block can prevent the connecting member 14 from disengaging from the slide rail.

[0025] Optionally, in this embodiment, the first elastic member is a first compression spring, and the second elastic member is a second compression spring.

[0026] Optionally, in this embodiment, it further includes a first optical axis and a second optical axis. The end of the first optical axis is fixed to the first fixing seat 7. A first connection hole is formed through the side wall of the first slider 5. A first linear bearing is arranged in the first connection hole. The first linear bearing is slidably connected to the first optical axis. A first compression spring is sleeved on the first optical axis. The two ends of the first compression spring respectively abut against the first slider 5 and the first fixing seat 7. The end of the second optical axis is fixed to the second fixing seat 8. The first optical axis and the second optical axis are perpendicular to each other but both parallel to the top surface of the base 1. A second connection hole is formed through the side wall of the second slider 6. A second linear bearing is arranged in the second connection hole. The second linear bearing is slidably connected to the second optical axis. A second compression spring is sleeved on the second optical axis. The two ends of the second compression spring respectively abut against the second slider 6 and the second fixing seat 8.

[0027] Optionally, in this embodiment, the linear moving mechanism is a cylinder, and the cylinder rod of the cylinder is the moving end of the linear moving mechanism.

[0028] Optionally, in this embodiment, a first buffer pad is arranged at the second end of the first pressing block 10, a second buffer pad is arranged at the second end of the second pressing block 11. The outer peripheral walls of the first roller 12 and the second roller 13 are both made of polyurethane, and the positioning seat 9 is made of antistatic material.

[0029] Using the workpiece clamping mechanism in this embodiment has the advantage of good clamping effect.

Claims

1. A workpiece clamping mechanism, characterized in that, Including: a base (1), a connecting seat (2), a first lifting block (3), a second lifting block (4), a first slider (5), a second slider (6), a first fixing seat (7), a second fixing seat (8), a linear movement mechanism and a positioning seat (9). The connecting seat (2) is arranged on the bottom surface of the base (1). The first fixing seat (7), the second fixing seat (8) and the positioning seat (9) are arranged on the top surface of the base (1). A first elastic member is arranged between the first slider (5) and the first fixing seat (7). A first roller (12) is rotatably connected to the side wall of the first slider (5). The first end of a first pressing block (10) is connected to the top end of the first slider (5). A second elastic member is arranged between the second slider (6) and the second fixing seat (8). A second roller (13) is rotatably connected to the side wall of the second slider (6). The first end of a second pressing block (11) is connected to the top end of the second slider (6). A first profiling protrusion is arranged on the top of the first lifting block (3). A second profiling protrusion is arranged on the top of the second lifting block (4). The moving end of the linear movement mechanism is connected to the first lifting block (3) and the second lifting block (4). The positioning seat (9) is provided with a first abutting surface and a second abutting surface perpendicular to each other. The side wall of a workpiece (15) can abut against the first abutting surface and the second abutting surface. The first elastic member can drive the first slider (5) to approach the workpiece (15) along the X-axis and drive the second end of the first pressing block (10) to squeeze the side wall of the workpiece (15). The second elastic member can drive the second slider (6) to approach the workpiece (15) along the Y-axis and drive the second end of the second pressing block (11) to squeeze the side wall of the workpiece (15). The first lifting block (3) and the second lifting block (4) can move back and forth along the Z-axis under the drive of the linear movement mechanism. The first profiling protrusion can squeeze the first roller (12) and drive the first slider (5) away from the workpiece (15). The second profiling protrusion can squeeze the second roller (13) and drive the second slider (6) away from the workpiece (15).

2. The workpiece clamping mechanism according to claim 1, characterized in that: The positioning seat (9) is detachably connected to the top surface of the base (1) by a first bolt. The first pressing block (10) is strip-shaped. The first end of the first pressing block (10) is detachably connected to the top end of the first slider (5) by a second bolt. The second pressing block (11) is strip-shaped. The first end of the second pressing block (11) is detachably connected to the top end of the second slider (6) by a third bolt.

3. The workpiece clamping mechanism according to claim 2, characterized in that: It further includes a slide rail and a connecting member (14). The slide rail is fixed to the connecting seat (2). The slide rail is perpendicular to the top surface of the base (1). The connecting member (14) is slidably connected to the slide rail. The bottom end of the first lifting block (3) is detachably connected to the top surface of the connecting member (14) by a fourth bolt. The bottom end of the second lifting block (4) is detachably connected to the top surface of the connecting member (14) by a fifth bolt.

4. The workpiece clamping mechanism according to claim 3, characterized in that: It further includes a first connecting shaft, a second connecting shaft, a first bearing, a second bearing, a first gasket and a second gasket. The first end of the first connecting shaft is threadedly connected to the side wall of the first slider (5). The first gasket and the inner ring of the first bearing are sleeved on the first connecting shaft. The first roller (12) is sleeved on the outer ring of the first bearing. The second end of the first connecting shaft is provided with a first limiting protrusion protruding radially. The first limiting protrusion can abut against the first end of the inner ring of the first bearing. The two ends of the first gasket respectively abut against the side wall of the first slider (5) and the second end of the inner ring of the first bearing. The first end of the second connecting shaft is threadedly connected to the side wall of the second slider (6). The second gasket and the inner ring of the second bearing are sleeved on the second connecting shaft. The second roller (13) is sleeved on the outer ring of the second bearing. The second end of the second connecting shaft is provided with a second limiting protrusion protruding radially. The second limiting protrusion can abut against the first end of the inner ring of the second bearing. The two ends of the second gasket respectively abut against the side wall of the second slider (6) and the second end of the inner ring of the second bearing.

5. The workpiece clamping mechanism according to claim 3, characterized in that: It further includes a limiting block. The first end of the limiting block is fixed to the side wall of the connecting seat (2). The bottom end of the connecting member (14) can abut against the second end of the limiting block.

6. The workpiece clamping mechanism according to claim 5, wherein: The first elastic member is a first compression spring, and the second elastic member is a second compression spring.

7. The workpiece clamping mechanism according to claim 6, characterized in that: It further includes a first optical axis and a second optical axis. The end of the first optical axis is fixed to the first fixed seat (7). A first connection hole is formed through the side wall of the first slider (5). A first linear bearing is arranged in the first connection hole. The first linear bearing is slidably connected to the first optical axis. The first compression spring is sleeved on the first optical axis. The two ends of the first compression spring respectively abut against the first slider (5) and the first fixed seat (7). The end of the second optical axis is fixed to the second fixed seat (8). The first optical axis and the second optical axis are perpendicular to each other but both parallel to the top surface of the base (1). A second connection hole is formed through the side wall of the second slider (6). A second linear bearing is arranged in the second connection hole. The second linear bearing is slidably connected to the second optical axis. The second compression spring is sleeved on the second optical axis. The two ends of the second compression spring respectively abut against the second slider (6) and the second fixed seat (8).

8. The workpiece clamping mechanism according to claim 1, wherein: The linear movement mechanism is a cylinder, and the cylinder rod of the cylinder is the moving end of the linear movement mechanism.

9. The workpiece clamping mechanism according to claim 1, characterized in that: A first buffer pad is arranged at the second end of the first pressing block (10), and a second buffer pad is arranged at the second end of the second pressing block (11). The outer peripheral walls of the first roller (12) and the second roller (13) are both made of polyurethane, and the positioning seat (9) is made of antistatic material.

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