Straight guide clamping closed-loop mechanism

Abstract

The invention relates to the technical field of double-stand-column numerical control right-angle grinding machines, and discloses a straight guide clamping closed-loop mechanism which comprises a C-shaped column, a compression air cylinder and a workbench, a driving table is installed on the left side of the workbench, a workpiece table is arranged above the driving table, a guide rail is arranged on the right side of the workbench, an upper rail clamp is arranged at the bottom end of the C-shaped column, and a lower rail clamp is arranged at the bottom end of the C-shaped column. The upper rail clamp is clamped on the guide rail in a sliding manner; a straight guide sleeve is arranged at the right end of the driving table, a protruding piece is arranged on the left side of the bottom end of the C-shaped column, and a tightening column is arranged at the left end of the protruding piece. The C-shaped column is driven by the driving air cylinder to move towards the left side, the clamping column and the straight guide sleeve are fixed after being connected in a positioning mode, and the C-shaped column and the workbench form a whole and can do rapid reciprocating motion on the numerical control right-angle grinding machine along with the workbench; and the C-shaped column and the driving table form a force closed loop, so that counter-acting force generated when the compression air cylinder is pressed down can be absorbed, and the deformation quantity of the workbench is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of double-column numerically controlled right-angle grinders, and in particular to a direct-guide clamping closed-loop mechanism. Background Art

[0002] The double-column CNC right-angle grinder is a mechanical equipment used for high-precision processing and is widely used in mold manufacturing, mechanical parts processing and other fields.

[0003] like Fig. 9 As shown in the figure, it is an existing open double-column CNC right-angle grinder, in which the grinding equipment 42 is located on the left and right sides of the object, and is used to grind the object. And during the grinding process, a compression cylinder is required to squeeze the object to avoid the object from shifting during the grinding process. However, after the compression cylinder squeezes the object for a long time, it will also cause the internal guide rail device to bend and deform.

[0004] The existing patent discloses a CNC deep hole internal cylindrical grinder strategy monitoring and processing integrated device (publication number CN216633701U), which involves the field of CNC technology, including a CNC grinder main table, and a monitoring component is set on one side of the CNC grinder main table. The operator can pull the short column according to the working conditions and the position where the CNC device is prone to problems. The short column separates the slider set on one side of the elastic right-angle block from the card slot for a distance, and then moves the embedded long block to the required position. In the technology disclosed in this patent, when the extrusion equipment compresses the workpiece, the guide rail device of the workbench will be deformed due to long-term extrusion. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a direct guide clamping closed loop mechanism, which solves the problems in the above-mentioned background technology.

[0006] To solve the above technical problems, according to one aspect of the present invention, more specifically, a direct guide clamping closed loop mechanism comprises a C-shaped column, a compression cylinder and a workbench, a driving table is arranged on the left side of the workbench, a workpiece table is arranged above the driving table, a guide rail is arranged on the right side of the workbench, an upper rail clamp is arranged at the bottom end of the C-shaped column, and the upper rail clamp is slidably clamped on the guide rail; A straight guide sleeve is provided at the right end of the driving platform, a protrusion is provided at the left side of the bottom end of the C-shaped column, and a tightening column is provided at the left end of the protrusion. After the C-shaped column moves closer to the driving platform, the tightening column is inserted into the straight guide sleeve and fixedly connected thereto.

[0007] Furthermore, a lower rail clamp is provided below the workbench, and the workbench is slidably mounted on the CNC right-angle grinder through the lower rail clamp, and a shield is provided on the front surface of the bottom end of the C-shaped column.

[0008] Furthermore, a buffer 2 is provided at the right end of the driving platform, and when the C-shaped column moves closer to the left driving platform, the buffer telescopic end of the buffer 2 is in compression contact with the buffer C-shaped column; A buffer 1 is provided at the right end of the workbench. After the C-shaped column slides to the right, the buffer telescopic end of the buffer 1 is pressed and contacted with the buffer C-shaped column.

[0009] Furthermore, a driving cylinder is provided inside the right side of the workbench, and the driving cylinder is used to drive the C-shaped column to move left and right.

[0010] Furthermore, the protrusion and the interior of the tightening column adopt an internal hollow design, and a fixing sleeve is fixedly installed inside the tightening column. An extrusion rod that can move left and right is penetrated inside the fixing sleeve, one end of the extrusion rod penetrates to the left outside of the tightening column, and the other end of the extrusion rod penetrates to the inside of the C-shaped column.

[0011] Furthermore, the right end of the fixing sleeve is sleeved with a second limiting ring, the surface of the fixing sleeve is sleeved with a truncated cone ring that can move left and right, the end of the tightening column is penetrated by a plurality of extrusion columns, the end of the extrusion column is sleeved with a second spring, and the other end of the second spring is in compression contact with the inner wall of the tightening column; The surface of the truncated cone ring is in pressure contact with the end of the extrusion column, and the right end of the fixed sleeve is provided with a spring 1, and the two ends of the spring 1 are respectively in pressure contact with the truncated cone ring and the second limiting ring.

[0012] Furthermore, a rough seal is provided on the internal sliding sleeve of the protruding member, and the rough seal is in sliding contact with the extrusion rod. A connecting rod is provided on the left end of the rough seal, and the left end of the connecting rod is fixedly connected to the truncated cone ring. A sealing plate is provided on the right side of the protruding member, wherein the extrusion rod is in sealing contact with the sealing plate, an oil chamber is formed between the sealing plate and the rough seal, and a limiting ring 1 is provided on the surface of the extrusion rod, and the limiting ring 1 is located on the right side of the sealing plate.

[0013] Furthermore, an extrusion oil cylinder is fixedly installed at the inner bottom end of the C-shaped column, and a sliding rod is connected to the right end of the extrusion oil cylinder, and the right end of the sliding rod is connected to the inner wall of the right end of the C-shaped column; An electric push rod is provided above the extrusion oil cylinder, and a sliding plate capable of moving left and right is sleeved on the surface of the sliding rod, and the telescopic end of the electric push rod is used to squeeze the sliding plate to move rightward; The left end surface of the sliding plate is connected with a long rod, the left end of the long rod penetrates into the interior of the extrusion oil cylinder and is sleeved with a fine seal, and a connecting pipe is connected between the left end of the extrusion oil cylinder and the oil chamber.

[0014] Furthermore, the right end of the sliding rod is fixedly connected to an L-shaped plate, a spring three is provided between the L-shaped plate and the sliding plate, and a hook and a blocking block that can swing up and down are provided below the L-shaped plate, and the blocking block is used to limit the swing angle of the hook.

[0015] Furthermore, two parallel columns are provided inside the C-shaped column, a pull wire is connected to the right end of the extrusion rod, the other end of the pull wire passes through the two columns and the L-shaped plate and is connected to the hook, and a spring four is provided on the surface of the pull wire and located between the hook and the L-shaped plate.

[0016] Beneficial effects:

[0017] 1. The present invention drives the C-shaped column to move to the left side by driving the cylinder, and the clamping column is fixed after being positioned and connected with the straight guide sleeve. The C-shaped column and the workbench form a whole, and can make rapid reciprocating motion with the workbench on the CNC right-angle grinder; and the C-shaped column and the driving table form a force closed loop, so as to absorb the reaction force generated when the compression cylinder is pressed down, which greatly reduces the deformation of the workbench.

[0018] 2. The present invention arranges a triggering extrusion rod structure inside the tightening column, so that after the tightening column is inserted into the sleeve, the extrusion rod is squeezed and finally the hydraulic oil in the extrusion oil cylinder is squeezed out, thereby driving the coarse seal to drive the truncated cone ring to move to the left, so that the extrusion column can be ejected and firmly fixed inside the straight guide sleeve, thereby reinforcing the firmness of the C-type column and the driving platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a side sectional view of the present invention; Figure 3 It is a front cross-sectional view of the present invention; Figure 4 It is a structural schematic diagram of the C-shaped column and the workbench of the present invention; Figure 5 A partial cross-sectional view of a C-shaped column of the present invention; Figure 6 For the present invention Figure 5 A magnified image of the middle A area; Figure 7 For the present invention Figure 6 Enlarged view of area B; Figure 8 For the present invention Figure 6 Enlarged view of area C in the middle; Fig. 9 The invention discloses a grinding device and a machine tool layout in the prior art.

[0020] In the figure: 1, C-type column; 2, compression cylinder; 3, workpiece table; 4, workbench; 5, drive table; 6, guide rail; 7, buffer 1; 8, straight guide sleeve; 9, buffer 2; 10, lower track clamp; 11, upper track clamp; 12, tightening column; 13, drive cylinder; 14, shield; 15, protrusion; 16, limit ring 1; 17, column; 18, pull wire; 19, sliding rod; 20, fine seal; 21, electric push rod; 22. Extrusion oil cylinder; 23. Connecting pipe; 24. Rough seal; 25. Oil chamber; 26. Spring one; 27. Extrusion column; 28. Extrusion rod; 29. ​​Fixed sleeve; 30. Spring two; 31. Cone ring; 32. Connecting rod; 33. Limiting ring two; 34. Sliding plate; 35. Sealing plate; 36. Spring three; 37. L-shaped plate; 38. Block block; 39. Spring four; 40. Hook; 41. Long rod; 42. Grinding equipment. DETAILED DESCRIPTION

[0021] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1 - As shown in Figure 8, according to one aspect of the present invention, there is provided a direct guide clamping closed-loop mechanism, including a C-type column 1, a compression cylinder 2 and a workbench 4, a driving platform 5 is arranged on the left side of the workbench 4, a workpiece platform 3 is arranged above the driving platform 5, a guide rail 6 is arranged on the right side of the workbench 4, an upper rail clamp 11 is arranged at the bottom end of the C-type column 1, and the upper rail clamp 11 is slidably clamped on the guide rail 6; a direct guide sleeve 8 is arranged at the right end of the driving platform 5, a protrusion 15 is arranged at the left side of the bottom end of the C-type column 1, and a tightening column 12 is arranged at the left end of the protrusion 15, and after the C-type column 1 moves closer to the driving platform 5, its tightening column 12 is inserted into the interior of the direct guide sleeve 8 and fixedly connected thereto. The driving cylinder 13 drives the C-shaped column 1 to move to the left, and the tightening column 12 is fixed after being positioned and connected with the straight guide sleeve 8. The C-shaped column 1 and the workbench 4 form a whole, and can make rapid reciprocating motion with the workbench 4 on the CNC right-angle grinder; and the C-shaped column 1 and the driving table 5 form a force closed loop, so as to absorb the reaction force generated by the compression cylinder 2 when it is pressed down, which greatly reduces the deformation of the workbench 4. (such as Figure 1 After placing the object on the workpiece table 3, when the straight guide sleeve 8 and the tightening column 12 are not connected (as shown in Figure 3 As shown in the figure, when the C-shaped column 1 is connected to the workbench 4 only by the guide rail 6, the workbench 4 will be deformed due to upward traction when the compression cylinder 2 presses the workpiece, and in serious cases, the C-shaped column 1 will derail. However, directly connecting the driving platform 5 and the C-shaped column 1 through the straight guide sleeve 8 and the tightening column 12 can solve the problem of deformation or even derailment of the workbench 4 pulled by the C-shaped column 1.

[0024] Example 2

[0025] A lower rail clamp 10 is provided below the workbench 4, and the workbench 4 is slidably mounted on the CNC right-angle grinder through the lower rail clamp 10. A shield 14 is provided on the front surface of the bottom end of the C-type column 1. A buffer 2 9 is provided at the right end of the drive table 5. After the C-type column 1 moves closer to the left drive table 5, the buffer telescopic end of the buffer 2 9 is squeezed and contacted with the buffer C-type column 1; a buffer 1 7 is provided at the right end of the workbench 4. After the C-type column 1 slides to the right, the buffer telescopic end of the buffer 1 7 is squeezed and contacted with the buffer C-type column 1. A driving cylinder 13 is provided inside the right side of the workbench 4. The driving cylinder 13 is used to drive the C-type column 1 to move left and right. The C-type column 1 is fixedly connected to the workbench 4. During this process, the hydraulic buffer 2 9 is used for buffering deceleration and smooth positioning.

[0026] Example 3

[0027] The protruding piece 15 and the interior of the tightening column 12 are designed with an internal hollowing out. A fixing sleeve 29 is fixedly installed inside the tightening column 12. An extrusion rod 28 that can move left and right is provided inside the fixing sleeve 29. One end of the extrusion rod 28 extends to the left exterior of the tightening column 12, and the other end of the extrusion rod 28 extends to the interior of the C-shaped column 1. A limiting ring 23 is provided on the right end of the fixing sleeve 29. A truncated cone ring 31 that can move left and right is provided on the surface of the fixing sleeve 29. A plurality of extrusion columns 27 are provided on the end of the extrusion column 27. A spring 230 is provided at the end of the extrusion column 27. The other end of the spring 230 is in pressure contact with the inner wall of the tightening column 12. The surface of the truncated cone ring 31 is in pressure contact with the end of the extrusion column 27. A spring 126 is provided on the right end of the fixing sleeve 29. The two ends of the spring 126 are respectively in pressure contact with the truncated cone ring 31 and the limiting ring 233 (such as Figure 7 As shown in the figure), the spring 1 26 is used to squeeze the truncated cone ring 31 to move to the right, ensuring that the truncated cone ring 31 and the squeezing column 27 are always in contact.

[0028] The inner sliding sleeve of the protruding member 15 is provided with a rough seal 24, and the rough seal 24 is in sliding contact with the extrusion rod 28. The left end of the rough seal 24 is provided with a connecting rod 32, and the left end of the connecting rod 32 is fixedly connected to the truncated cone ring 31. A sealing plate 35 is provided on the right side of the protruding member 15, wherein the extrusion rod 28 is in sealing contact with the sealing plate 35, and an oil chamber 25 is formed between the sealing plate 35 and the rough seal 24. A limiting ring 16 is provided on the surface of the extrusion rod 28, and the limiting ring 16 is located on the right side of the sealing plate 35 (such as Figure 6 , 7 As shown in the figure, the limit ring 16 is used to limit the leftward movement range of the extrusion rod 28, and the left end of the extrusion rod 28 is provided with a disc and a spring, which can ensure that the extrusion rod 28 can recover after being squeezed.

[0029] An extrusion oil cylinder 22 is fixedly installed at the inner bottom end of the C-shaped column 1, and the right end of the extrusion oil cylinder 22 is connected to the sliding rod 19, and the right end of the sliding rod 19 is connected to the inner wall of the right end of the C-shaped column 1; an electric push rod 21 is provided above the extrusion oil cylinder 22, and the surface of the sliding rod 19 is provided with a sliding plate 34 that can move left and right, and the telescopic end of the electric push rod 21 is used to squeeze the sliding plate 34 to move rightward; the left end surface of the sliding plate 34 is connected to a long rod 41, and the left end of the long rod 41 passes through the inside of the extrusion oil cylinder 22 and is provided with a fine seal 20, and a connecting pipe 23 is connected between the left end of the extrusion oil cylinder 22 and the oil chamber 25.

[0030] The right end of the sliding rod 19 is fixedly connected to an L-shaped plate 37, a spring 36 is arranged between the L-shaped plate 37 and the sliding plate 34, and a hook 40 and a block 38 that can swing up and down are arranged below the L-shaped plate 37, and the block 38 is used to limit the swing angle of the hook 40. Two parallel columns 17 are arranged inside the C-shaped column 1, and a pull wire 18 is connected to the right end of the extrusion rod 28, and the other end of the pull wire 18 passes through the two columns 17 and the L-shaped plate 37 and is connected to the hook 40, and a spring 4 39 is sleeved on the surface of the pull wire 18 and located between the hook 40 and the L-shaped plate 37.

[0031] The working principle of the present invention is: based on the development and application of a double-column CNC right-angle grinder. When the manipulator automatically loads and unloads materials, there must be enough space directly above the workpiece, so the compression cylinder 2 needs to be made movable. That is, the workpiece is installed above the workpiece table 3, and the driving cylinder 13 drives the C-type column 1 to move left and right. After the driving cylinder 13 drives the C-type column 1 to move to the left, the tightening column 12 is positioned and connected with the straight guide sleeve 8 and then fixed, so as to realize the fixed connection between the C-type column 1 and the workbench 4. In this process, the hydraulic buffer 2 9 is used for buffering deceleration and stable positioning.

[0032] After the C-shaped column 1 is connected to the workbench 4 , the C-shaped column 1 and the workbench 4 form a whole, and can make rapid reciprocating motion with the workbench 4 on the CNC right-angle grinder.

[0033] When the C-shaped column 1 moves closer to the driving platform 5, the tightening column 12 will be inserted into the straight guide sleeve 8, so that the extrusion rod 28 will move to the right side due to the extrusion (such as Figure 7 As shown in FIG. 1 ), the squeezing rod 28 moving to the right will drag one end of the pull wire 18 to move (as shown in FIG. 1 ). Figure 6 As shown), the other end of the pull wire 18 will overcome the elastic force of the spring 49 to drive the hook 40 to swing downward (as shown Figure 8 As shown in the figure), the end of the hook 40 will be separated from the sliding plate 34, so that the sliding plate 34 can squeeze the long rod 41 to move to the left under the action of the spring 36.

[0034] The long rod 41 moving to the left will squeeze the thin seal 20 (such as Figure 6As shown), the hydraulic oil squeezed out of the left side of the oil cylinder 22 will enter the oil chamber 25 through the connecting pipe 23, and drive the rough seal 24 to move to the left side (as shown). Figure 7 ). The diameter of the fine seal 20 is smaller than that of the coarse seal 24, which can greatly reduce the resistance of the fine seal 20 to squeeze and drive the coarse seal 24, so as to form a laborious lever structure.

[0035] The fine seal 20 moves to the left, and the truncated cone ring 31 moves to the left through the connecting rod 32, so that the truncated cone ring 31 squeezes the end of the squeezing column 27 (such as Figure 7 As shown), the extrusion column 27 will overcome the elastic force of the spring 2 30 and extend, thereby firmly fixing the tightening column 12 inside the straight guide sleeve 8.

[0036] If the connection needs to be disconnected, the electric push rod 21 only needs to be started (such as Figure 6 As shown), the telescopic end of the electric push rod 21 will squeeze the sliding plate 34 to move to the right, and finally allow the sliding plate 34 to be re-engaged on the hook 40.

[0037] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A direct guide clamping closed loop mechanism, comprising a C-shaped column (1), a compression cylinder (2) and a workbench (4), characterized in that: A driving platform (5) is arranged on the left side of the workbench (4), a workpiece platform (3) is arranged above the driving platform (5), a guide rail (6) is arranged on the right side of the workbench (4), and an upper rail clamp (11) is arranged at the bottom end of the C-shaped column (1), wherein the upper rail clamp (11) is slidably clamped on the guide rail (6); A straight guide sleeve (8) is provided at the right end of the driving platform (5), a protruding piece (15) is provided at the left side of the bottom end of the C-shaped column (1), and a tightening column (12) is provided at the left end of the protruding piece (15). After the C-shaped column (1) moves toward the driving platform (5), the tightening column (12) is inserted into the straight guide sleeve (8) and fixedly connected thereto.

2. The direct guide clamping closed loop mechanism according to claim 1, characterized in that: A lower rail clamp (10) is provided below the workbench (4), and the workbench (4) is slidably mounted on a CNC right-angle grinder via the lower rail clamp (10). A shield plate (14) is provided on the front surface of the bottom end of the C-shaped column (1).

3. The direct guide clamping closed loop mechanism according to claim 1, characterized in that: The right end of the driving platform (5) is provided with a buffer 2 (9), and when the C-shaped column (1) moves toward the left driving platform (5), the buffer telescopic end of the buffer 2 (9) is in compression contact with the buffer C-shaped column (1); A buffer 1 (7) is provided at the right end of the workbench (4), and after the C-shaped column (1) slides to the right, the buffer telescopic end of the buffer 1 (7) is pressed into contact with the buffer C-shaped column (1).

4. The direct guide clamping closed loop mechanism according to claim 1, characterized in that: A driving cylinder (13) is provided inside the right side of the workbench (4), and the driving cylinder (13) is used to drive the C-shaped column (1) to move left and right.

5. The direct guide clamping closed loop mechanism according to claim 1, characterized in that: The protruding member (15) and the tightening column (12) have an internal hollow design, a fixing sleeve (29) is fixedly installed inside the tightening column (12), and an extrusion rod (28) that can move left and right is provided inside the fixing sleeve (29), one end of the extrusion rod (28) penetrates to the left outside of the tightening column (12), and the other end of the extrusion rod (28) penetrates to the inside of the C-shaped column (1).

6. The direct guide clamping closed loop mechanism according to claim 5, characterized in that: The right end of the fixing sleeve (29) is sleeved with a second limiting ring (33), the surface of the fixing sleeve (29) is sleeved with a truncated cone ring (31) that can move left and right, the end of the tightening column (12) is penetrated by a plurality of extrusion columns (27), the end of the extrusion column (27) is sleeved with a second spring (30), and the other end of the second spring (30) is in pressure contact with the inner wall of the tightening column (12); The surface of the truncated cone ring (31) is in pressure contact with the end of the extrusion column (27), and the right end of the fixed sleeve (29) is provided with a spring 1 (26), and the two ends of the spring 1 (26) are respectively in pressure contact with the truncated cone ring (31) and the second limit ring (33).

7. The direct guide clamping closed loop mechanism according to claim 6, characterized in that: A rough seal (24) is provided on the inner sliding sleeve of the protruding member (15), and the rough seal (24) is in sliding contact with an extrusion rod (28). A connecting rod (32) is provided on the left end of the rough seal (24), and the left end of the connecting rod (32) is fixedly connected to a truncated cone ring (31). A sealing plate (35) is provided on the right side of the protruding member (15), wherein the extrusion rod (28) is in sealing contact with the sealing plate (35), and an oil chamber (25) is formed between the sealing plate (35) and the rough seal (24). A limiting ring (16) is provided on the surface of the extrusion rod (28), and the limiting ring (16) is located on the right side of the sealing plate (35).

8. The direct guide clamping closed loop mechanism according to claim 7, characterized in that: An extrusion oil cylinder (22) is fixedly mounted at the inner bottom end of the C-shaped column (1), the right end of the extrusion oil cylinder (22) is connected to a sliding rod (19), and the right end of the sliding rod (19) is in contact with the inner wall of the right end of the C-shaped column (1); An electric push rod (21) is provided above the extrusion oil cylinder (22), a sliding plate (34) capable of moving left and right is sleeved on the surface of the sliding rod (19), and the telescopic end of the electric push rod (21) is used to squeeze the sliding plate (34) to move rightward; A long rod (41) is connected to the left end surface of the sliding plate (34), the left end of the long rod (41) penetrates into the interior of the extrusion oil cylinder (22) and is sleeved with a fine seal (20), and a connecting pipe (23) is connected between the left end of the extrusion oil cylinder (22) and the oil chamber (25).

9. The direct guide clamping closed loop mechanism according to claim 8, characterized in that: The right end of the sliding rod (19) is fixedly connected to an L-shaped plate (37), a spring three (36) is provided between the L-shaped plate (37) and the sliding plate (34), and a hook (40) and a blocking block (38) capable of swinging up and down are provided below the L-shaped plate (37), and the blocking block (38) is used to limit the swing angle of the hook (40).

10. The direct guide clamping closed loop mechanism according to claim 9, characterized in that: Two parallel columns (17) are arranged inside the C-shaped column (1); a pull wire (18) is connected to the right end of the extrusion rod (28); the other end of the pull wire (18) passes through the two columns (17) and the L-shaped plate (37) and is connected to the hook (40); a spring (39) is sleeved on the surface of the pull wire (18) and located between the hook (40) and the L-shaped plate (37).

Images