A plane grinder can overturn multi-functional clamp
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG AMORPHOUS METAL MATERIAL MFG CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-26
Smart Images
Figure CN224407266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of structural design and application technology of auxiliary equipment for machining, and in particular to a flip-type multi-functional fixture for a surface grinder. Background Technology
[0002] Surface grinders are common machining equipment, typically used for machining the surfaces of parts. Because surface grinders frequently need to machine workpieces of various shapes in daily operation, the following two main problems urgently need to be addressed when machining these different shapes:
[0003] I. Currently, the types of fixtures on the market are relatively limited. They mainly use magnetic baffles to fix the workpieces and require different fixtures to be changed when processing workpieces of different shapes.
[0004] Second, the existing processing method involves flat grinding the surface of the workpiece, then disassembling and flipping the workpiece to flat grind the other side. This method is time-consuming and prone to various problems such as large errors.
[0005] There is an urgent need for a more technologically advanced, reversible, multi-functional fixture for surface grinders. Utility Model Content
[0006] This invention provides a reversible multi-functional fixture for a surface grinder. To address the shortcomings and deficiencies of existing technologies, the purpose of this invention is to provide an adjustable fixture for a surface grinder. This fixture can not only hold multiple workpieces of different shapes with a single fixture, but also enable rapid reversal of the workpiece after processing, simplifying operation steps, reducing operational difficulty, and improving processing efficiency.
[0007] The technical solution of this utility model is as follows:
[0008] A flip-type multi-functional fixture for a surface grinder, the key technology of which is: the flip-type multi-functional fixture for a surface grinder includes: a fixture base 1, a spherical fixture 2, a spherical fixture groove 4, an upper fastening screw hole 6, a lower fastening screw hole 11, a left rack 13, a spherical fixture fixing gear 14, a fastening screw 15, and a spherical fixture fixing rod 16;
[0009] Wherein: the spherical clamp 2 is a split structure composed of two parts, and a spherical clamp groove 4 is provided between the two parts that make up the spherical clamp 2;
[0010] The spherical clamp 2 is arranged on the clamp base 1, and two fastening screws 15 are fixed on the spherical clamp 2 through the upper fastening screw hole 6 and the lower fastening screw hole 11 respectively so as to adjust the relative distance between the two mating parts in the spherical clamp 2;
[0011] The spherical clamp fixing rod 16 and the spherical clamp 2 are fixedly connected. The spherical clamp fixing rod 16 is equipped with a spherical clamp fixing gear 14 and meshes with the left rack 13. The left rack 13 is a wide rack. After the spherical clamp 2 clamps, the spherical clamp fixing rod 16 drives the spherical clamp fixing gear 14 to move.
[0012] The preferred technical content to be protected in the present invention is: the spherical clamp 2 is further provided with a pneumatic telescopic gripper 20 and an air vent 21.
[0013] The spherical clamp 2 has a split structure, which is composed of two semi-ring structures. It includes a semi-ring frame 2.1, a pneumatic telescopic gripper 20, and a ventilation pipe 21. The semi-ring frame is the mounting base for the pneumatic telescopic gripper 20. The pneumatic telescopic gripper 20 is arranged on the semi-ring frame 2.1 and is pneumatically controlled by the ventilation pipe 21 to extend or retract radially in the semi-ring frame 2.1. There are 17 pneumatic telescopic grippers 20 evenly arranged along the circumference.
[0014] The distance between the front end of the pneumatic telescopic gripper 20, closest to the radial center of the semi-annular frame 2.1, and the center is 10mm~36mm, 30mm~62mm, or 58mm~85mm; these correspond to three specifications.
[0015] The front end of the pneumatic telescopic gripper 19.2 has the same shape as the gear tooth profile to facilitate gripping the gear; the front end of the pneumatic telescopic gripper 20 is provided with an anti-slip and anti-wear block at the radial center of the annular frame 2.1, and there is an movable gap between adjacent pneumatic telescopic grippers 20 so that they can move radially and grip gear-like workpieces.
[0016] In the reversible multi-functional fixture of the surface grinder, an angle wheel 19 is provided on the shaft of the fixed gear 14 of the spherical fixture. When the spherical fixture 2, the square fixture 7 and the base 1 are in a horizontal state, the angle wheel displays an angle of 180°. When the spherical fixture 2 and the square fixture 7 are rotated, the angle pointer on the angle wheel 19 rotates accordingly. The workpiece can be ground at the required angle according to the processing requirements.
[0017] The reversible multi-functional fixture for the surface grinder also includes the following structure: a square fixture 7 and a square fixture groove 5; wherein: the square fixture 7 is a split structure composed of two parts, and a square fixture groove 5 is provided between the two parts that make up the square fixture 7.
[0018] One of the two fastening screws 15 passes through the upper fastening screw hole 6, and the other passes through the lower fastening screw hole 11; the combined half-structure constituting the spherical clamp 2 and the square clamp 7 is fixedly connected as a whole; and the relative position and posture of the different combined parts constituting the spherical clamp 2 and / or the square clamp 7 can be adjusted so as to clamp or release workpieces of different shapes in the spherical clamp 2 and / or the square clamp 7.
[0019] The pneumatic telescopic gripper 20 is a movable gripper with a curved trapezoidal cross-section.
[0020] The reversible multi-functional fixture for the surface grinder meets one or a combination of the following requirements:
[0021] Firstly, in the reversible multi-functional fixture of the surface grinder, an angle wheel 19 is provided on the shaft of the fixed gear 14 of the spherical fixture. When the spherical fixture 2, the square fixture 7 and the base 1 are in a horizontal state, the angle wheel displays an angle of 180°. When the spherical fixture 2 and the square fixture 7 are rotated, the angle pointer on the angle wheel 19 rotates accordingly. According to the processing requirements, the workpiece can be ground at the required angle.
[0022] Secondly, the spherical clamp 2 and / or the square clamp 7 are provided with a buffer inner lining layered structure 22, which meets the following requirements: its surface layer is a polyurethane wear-resistant, corrosion-resistant and anti-slip layer 22.1 with a thickness of 2.8mm; the middle layer is a fiber-reinforced material layer 22.2 with a certain elasticity and toughness with a thickness of 3.8mm; the bottom layer is a polyurethane high-adhesion material layer with high bonding strength with the matrix of the spherical clamp 2 and / or the square clamp 7 with a thickness of 1.8mm.
[0023] The reversible multi-functional fixture for the surface grinder also includes: a square fixture fixing rod 8, a square fixture fixing rod gear 9, and a right rack 10;
[0024] The square clamp fixing rod 8 is fixedly connected to the square clamp 7. The square clamp fixing rod 8 is equipped with a square clamp fixing rod gear 9, which meshes with the right rack 10. Rotating the square clamp fixing rod gear 9 and the spherical clamp fixing gear 14 can drive the spherical clamp 2 and the square clamp 7 to rotate and flip, while moving vertically up and down.
[0025] The right limit stop 17 can fix the square clamp fixing rod gear 9 to a specified position, and the left limit stop 18 can fix the ball clamp fixing gear 14 to a specified position, so that after the clamp clamps the workpiece, it remains fixed during the flat grinding process to ensure machining accuracy.
[0026] It can hold multiple workpieces of different shapes with a single fixture, and can also perform surface grinding on the other side of the workpiece without loosening the fixture to remove the workpiece. This simplifies the operation process, reduces the difficulty of operation, and improves processing efficiency.
[0027] The reversible multi-functional fixture for the surface grinder also includes an upper spring 3 and a lower spring 12.
[0028] One of the two fastening screws 15 passes through the upper fastening screw hole 6 and the upper spring 3 in sequence, and the other passes through the lower fastening screw hole 11 and the lower spring 12 in sequence; the combined half-structure constituting the spherical clamp 2 and the square clamp 7 is fixedly connected as a whole; and the relative position and posture of the different combined parts constituting the spherical clamp 2 and / or the square clamp 7 can be adjusted so as to clamp or release workpieces of different shapes in the spherical clamp 2 and / or the square clamp 7;
[0029] The upper spring 3 and the lower spring 12 are pre-loaded tension springs. Both the upper spring 3 and the lower spring 12 are elastic, and after the fastening screw 15 is loosened after processing, the spherical clamp 2 or / and the square clamp 7 can be reset under the action of the spring to achieve quick separation. This facilitates the disassembly of workpieces of different shapes and also saves time to quickly install subsequent workpieces.
[0030] The reversible multi-functional fixture for the surface grinder also includes a right limit stop 17 that fixes the square fixture fixing rod gear 9 to a designated position, and a left limit stop 18 that fixes the spherical fixture fixing gear 14 to a designated position. The right limit stop 17 and the left limit stop 18 ensure that the fixture remains fixed during the surface grinding process after clamping the workpiece, thus guaranteeing machining accuracy.
[0031] To address the shortcomings and deficiencies of existing technologies, the purpose of this utility model is to provide an adjustable fixture for a surface grinder. This fixture can not only hold multiple workpieces of different shapes with a single fixture, but also enable the workpiece to be quickly flipped after processing, simplifying the operation steps, reducing the difficulty of operation, and improving processing efficiency. Attached Figure Description
[0032] Figure 1 This is a structural diagram of a reversible multi-functional fixture for a surface grinder as described in Example 1;
[0033] Figure 2 The left side view is of a reversible multi-functional fixture for a surface grinder as described in Example 1;
[0034] Figure 3 The right side view is of a reversible multi-functional fixture for a surface grinder as described in Example 1.
[0035] Figure 4 A simplified schematic diagram illustrating the principle of installing a pneumatic telescopic gripper 20 on a spherical clamp 2;
[0036] Figure 5 A simplified structural diagram of the buffer liner layered structure 22 provided on the spherical clamp 2 or / and the square clamp 7;
[0037] Figure 6 This is a structural diagram of the reversible multi-functional fixture for the surface grinder described in Example 2. Detailed Implementation
[0038] The present invention will be further described below with reference to the embodiments and the accompanying drawings, but is not limited thereto.
[0039] Meaning of reference numerals in the attached diagram: 1. Clamp base; 2. Spherical clamp; 3. Upper spring; 4. Spherical clamp groove; 5. Square clamp groove; 6. Upper fastening screw hole; 7. Square clamp; 8. Square clamp fixing rod; 9. Right rack; 10. Lower fastening screw hole; 11. Lower spring; 12. Left rack; 13. Spherical clamp fixing gear; 14. Fastening screw; 15. Spherical clamp fixing rod; 16. Right limit stop; 17. Left limit stop; 18. Angle wheel; 19. Pneumatic telescopic gripper; 20. Air pipe hole; 21.
[0040] The section lines in all figures are omitted and not drawn.
[0041] Example 1
[0042] A flip-type multi-functional fixture for a surface grinder, such as Figures 1-5 As shown; its key technology is: the reversible multi-functional fixture for the surface grinder includes: fixture base 1, spherical fixture 2, spherical fixture groove 4, upper fastening screw hole 6, lower fastening screw hole 11, left rack 13, spherical fixture fixing gear 14, fastening screw 15, and spherical fixture fixing rod 16.
[0043] Wherein: the spherical clamp 2 is a split structure composed of two parts, and a spherical clamp groove 4 is provided between the two parts that make up the spherical clamp 2;
[0044] The spherical clamp 2 is arranged on the clamp base 1, and two fastening screws 15 are fixed on the spherical clamp 2 through the upper fastening screw hole 6 and the lower fastening screw hole 11 respectively so as to adjust the relative distance between the two mating parts in the spherical clamp 2;
[0045] The spherical clamp fixing rod 16 and the spherical clamp 2 are fixedly connected. The spherical clamp fixing rod 16 is equipped with a spherical clamp fixing gear 14 and meshes with the left rack 13. The left rack 13 is a wide rack. After the spherical clamp 2 clamps, the spherical clamp fixing rod 16 drives the spherical clamp fixing gear 14 to move.
[0046] The technical content to be protected in the reversible multi-functional fixture for surface grinder described in this embodiment also includes: in the reversible multi-functional fixture for surface grinder, the spherical fixture 2 is also provided with a pneumatic telescopic gripper 20 and an air vent 21;
[0047] The spherical clamp 2 has a split structure, which is composed of two semi-ring structures. It includes a semi-ring frame 2.1, a pneumatic telescopic gripper 20, and a ventilation pipe 21. The semi-ring frame is the mounting base for the pneumatic telescopic gripper 20. The pneumatic telescopic gripper 20 is arranged on the semi-ring frame 2.1 and is pneumatically controlled by the ventilation pipe 21 to extend or retract radially in the semi-ring frame 2.1. There are 17 pneumatic telescopic grippers 20 evenly arranged along the circumference.
[0048] The distance between the front end of the pneumatic telescopic gripper 20, closest to the radial center of the semi-annular frame 2.1, and the center is 10mm~36mm, 30mm~62mm, or 58mm~85mm; these correspond to three specifications.
[0049] The front end of the pneumatic telescopic gripper 19.2 has the same shape as the gear tooth profile to facilitate gripping the gear; the front end of the pneumatic telescopic gripper 20 is provided with an anti-slip and anti-wear block at the radial center of the annular frame 2.1, and there is an movable gap between adjacent pneumatic telescopic grippers 20 so that they can move radially and grip gear-like workpieces.
[0050] In the reversible multi-functional fixture of the surface grinder, an angle wheel 19 is provided on the shaft of the fixed gear 14 of the spherical fixture. When the spherical fixture 2, the square fixture 7 and the base 1 are in a horizontal state, the angle wheel displays an angle of 180°. When the spherical fixture 2 and the square fixture 7 are rotated, the angle pointer on the angle wheel 19 rotates accordingly. The workpiece can be ground at the required angle according to the processing requirements.
[0051] The reversible multi-functional fixture for the surface grinder also includes the following structure: a square fixture 7 and a square fixture groove 5; wherein: the square fixture 7 is a split structure composed of two parts, and a square fixture groove 5 is provided between the two parts that make up the square fixture 7.
[0052] One of the two fastening screws 15 passes through the upper fastening screw hole 6, and the other passes through the lower fastening screw hole 11; the combined half-structure constituting the spherical clamp 2 and the square clamp 7 is fixedly connected as a whole; and the relative position and posture of the different combined parts constituting the spherical clamp 2 and / or the square clamp 7 can be adjusted so as to clamp or release workpieces of different shapes in the spherical clamp 2 and / or the square clamp 7.
[0053] The pneumatic telescopic gripper 20 is a movable gripper with a curved trapezoidal cross-section.
[0054] The reversible multi-functional fixture for the surface grinder meets the following requirements:
[0055] Firstly, in the reversible multi-functional fixture of the surface grinder, an angle wheel 19 is provided on the shaft of the fixed gear 14 of the spherical fixture. When the spherical fixture 2, the square fixture 7 and the base 1 are in a horizontal state, the angle wheel displays an angle of 180°. When the spherical fixture 2 and the square fixture 7 are rotated, the angle pointer on the angle wheel 19 rotates accordingly. According to the processing requirements, the workpiece can be ground at the required angle.
[0056] Secondly, the spherical clamp 2 and / or the square clamp 7 are provided with a buffer inner lining layered structure 22, which meets the following requirements: its surface layer is a polyurethane wear-resistant, corrosion-resistant and anti-slip layer 22.1 with a thickness of 2.8mm; the middle layer is a fiber-reinforced material layer 22.2 with a certain elasticity and toughness with a thickness of 3.8mm; the bottom layer is a polyurethane high-adhesion material layer with high bonding strength with the matrix of the spherical clamp 2 and / or the square clamp 7 with a thickness of 1.8mm.
[0057] The reversible multi-functional fixture for the surface grinder also includes: a square fixture fixing rod 8, a square fixture fixing rod gear 9, and a right rack 10;
[0058] The square clamp fixing rod 8 is fixedly connected to the square clamp 7. The square clamp fixing rod 8 is equipped with a square clamp fixing rod gear 9, which meshes with the right rack 10. Rotating the square clamp fixing rod gear 9 and the spherical clamp fixing gear 14 can drive the spherical clamp 2 and the square clamp 7 to rotate and flip, while moving vertically up and down.
[0059] The right limit stop 17 can fix the square clamp fixing rod gear 9 to a specified position, and the left limit stop 18 can fix the ball clamp fixing gear 14 to a specified position, so that after the clamp clamps the workpiece, it remains fixed during the flat grinding process to ensure machining accuracy.
[0060] It can hold multiple workpieces of different shapes with a single fixture, and can also perform surface grinding on the other side of the workpiece without loosening the fixture to remove the workpiece. This simplifies the operation process, reduces the difficulty of operation, and improves processing efficiency.
[0061] The reversible multi-functional fixture for the surface grinder also includes an upper spring 3 and a lower spring 12.
[0062] One of the two fastening screws 15 passes through the upper fastening screw hole 6 and the upper spring 3 in sequence, and the other passes through the lower fastening screw hole 11 and the lower spring 12 in sequence; the combined half-structure constituting the spherical clamp 2 and the square clamp 7 is fixedly connected as a whole; and the relative position and posture of the different combined parts constituting the spherical clamp 2 and / or the square clamp 7 can be adjusted so as to clamp or release workpieces of different shapes in the spherical clamp 2 and / or the square clamp 7;
[0063] The upper spring 3 and the lower spring 12 are pre-loaded tension springs. Both the upper spring 3 and the lower spring 12 are elastic, and after the fastening screw 15 is loosened after processing, the spherical clamp 2 or / and the square clamp 7 can be reset under the action of the spring to achieve quick separation. This facilitates the disassembly of workpieces of different shapes and also saves time to quickly install subsequent workpieces.
[0064] The reversible multi-functional fixture for the surface grinder also includes a right limit stop 17 that fixes the square fixture fixing rod gear 9 to a designated position, and a left limit stop 18 that fixes the spherical fixture fixing gear 14 to a designated position. The right limit stop 17 and the left limit stop 18 ensure that the fixture remains fixed during the surface grinding process after clamping the workpiece, thus guaranteeing machining accuracy.
[0065] To address the shortcomings and deficiencies of existing technologies, the purpose of this embodiment is to provide an adjustable fixture for a surface grinder. This fixture can not only hold multiple workpieces of different shapes with a single fixture, but also enable the workpiece to be quickly flipped after processing, simplifying the operation steps, reducing the difficulty of operation, and improving processing efficiency.
[0066] Example 1
[0067] A flip-type multi-functional fixture for a surface grinder, such as Figure 2 , Figure 3 , Figure 6 As shown; its key technology is: the reversible multi-functional fixture for the surface grinder includes: fixture base 1, spherical fixture 2, spherical fixture groove 4, upper fastening screw hole 6, lower fastening screw hole 11, left rack 13, spherical fixture fixing gear 14, fastening screw 15, and spherical fixture fixing rod 16.
[0068] Wherein: the spherical clamp 2 is a split structure composed of two parts, and a spherical clamp groove 4 is provided between the two parts that make up the spherical clamp 2;
[0069] The spherical clamp 2 is arranged on the clamp base 1, and two fastening screws 15 are fixed on the spherical clamp 2 through the upper fastening screw hole 6 and the lower fastening screw hole 11 respectively so as to adjust the relative distance between the two mating parts in the spherical clamp 2;
[0070] The spherical clamp fixing rod 16 and the spherical clamp 2 are fixedly connected. The spherical clamp fixing rod 16 is equipped with a spherical clamp fixing gear 14 and meshes with the left rack 13. The left rack 13 is a wide rack. After the spherical clamp 2 clamps, the spherical clamp fixing rod 16 drives the spherical clamp fixing gear 14 to move.
[0071] The reversible multi-functional fixture for the surface grinder also includes the following structure: a square fixture 7 and a square fixture groove 5; wherein: the square fixture 7 is a split structure composed of two parts, and a square fixture groove 5 is provided between the two parts that make up the square fixture 7.
[0072] One of the two fastening screws 15 passes through the upper fastening screw hole 6, and the other passes through the lower fastening screw hole 11; the combined half-structure constituting the spherical clamp 2 and the square clamp 7 is fixedly connected as a whole; and the relative position and posture of the different combined parts constituting the spherical clamp 2 and / or the square clamp 7 can be adjusted so as to clamp or release workpieces of different shapes in the spherical clamp 2 and / or the square clamp 7.
[0073] The pneumatic telescopic gripper 20 is a movable gripper with a curved trapezoidal cross-section.
[0074] The reversible multi-functional fixture for the surface grinder also includes: a square fixture fixing rod 8, a square fixture fixing rod gear 9, and a right rack 10;
[0075] The square clamp fixing rod 8 is fixedly connected to the square clamp 7. The square clamp fixing rod 8 is equipped with a square clamp fixing rod gear 9, which meshes with the right rack 10. Rotating the square clamp fixing rod gear 9 and the spherical clamp fixing gear 14 can drive the spherical clamp 2 and the square clamp 7 to rotate and flip, while moving vertically up and down.
[0076] The right limit stop 17 can fix the square clamp fixing rod gear 9 to a specified position, and the left limit stop 18 can fix the ball clamp fixing gear 14 to a specified position, so that after the clamp clamps the workpiece, it remains fixed during the flat grinding process to ensure machining accuracy.
[0077] It can hold multiple workpieces of different shapes with a single fixture, and can also perform surface grinding on the other side of the workpiece without loosening the fixture to remove the workpiece. This simplifies the operation process, reduces the difficulty of operation, and improves processing efficiency.
[0078] The reversible multi-functional fixture for the surface grinder also includes an upper spring 3 and a lower spring 12.
[0079] One of the two fastening screws 15 passes through the upper fastening screw hole 6 and the upper spring 3 in sequence, and the other passes through the lower fastening screw hole 11 and the lower spring 12 in sequence; the combined half-structure constituting the spherical clamp 2 and the square clamp 7 is fixedly connected as a whole; and the relative position and posture of the different combined parts constituting the spherical clamp 2 and / or the square clamp 7 can be adjusted so as to clamp or release workpieces of different shapes in the spherical clamp 2 and / or the square clamp 7;
[0080] The upper spring 3 and the lower spring 12 are pre-loaded tension springs. Both the upper spring 3 and the lower spring 12 are elastic, and after the fastening screw 15 is loosened after processing, the spherical clamp 2 or / and the square clamp 7 can be reset under the action of the spring to achieve quick separation. This facilitates the disassembly of workpieces of different shapes and also saves time to quickly install subsequent workpieces.
[0081] The reversible multi-functional fixture for the surface grinder also includes a right limit stop 17 that fixes the square fixture fixing rod gear 9 to a designated position, and a left limit stop 18 that fixes the spherical fixture fixing gear 14 to a designated position. The right limit stop 17 and the left limit stop 18 ensure that the fixture remains fixed during the surface grinding process after clamping the workpiece, thus guaranteeing machining accuracy.
[0082] To address the shortcomings and deficiencies of existing technologies, the purpose of this embodiment is to provide an adjustable fixture for a surface grinder. This fixture can not only hold multiple workpieces of different shapes with a single fixture, but also enable the workpiece to be quickly flipped after processing, simplifying the operation steps, reducing the difficulty of operation, and improving processing efficiency.
Claims
1. A flip-type multi-functional fixture for a surface grinder, characterized in that: The reversible multi-functional fixture for the surface grinder includes: a fixture base (1), a spherical fixture (2), a spherical fixture groove (4), an upper fastening screw hole (6), a lower fastening screw hole (11), a left rack (13), a spherical fixture fixing gear (14), a fastening screw (15), and a spherical fixture fixing rod (16). Among them: the spherical clamp (2) is a split structure composed of two parts, and a spherical clamp groove (4) is provided between the two parts that make up the spherical clamp (2). The spherical clamp (2) is arranged on the clamp base (1), and two fastening screws (15) are fixed on the spherical clamp (2) through the upper fastening screw hole (6) and the lower fastening screw hole (11) respectively so as to adjust the relative distance between the two parts that cooperate with each other in the spherical clamp (2); The spherical clamp fixing rod (16) and the spherical clamp (2) are fixedly connected. The spherical clamp fixing rod (16) is equipped with a spherical clamp fixing gear (14) and meshes with the left rack (13). The left rack (13) is a wide rack. After the spherical clamp (2) clamps, the spherical clamp fixing rod (16) drives the spherical clamp fixing gear (14) to move.
2. The reversible multi-functional fixture for a surface grinder according to claim 1, characterized in that: In the reversible multi-functional fixture of the surface grinder, the spherical fixture (2) is also equipped with a pneumatic telescopic gripper (20) and an air pipe (21). The spherical clamp (2) is a split structure, which is composed of two semi-ring structures. It includes a semi-ring frame (2.1), a pneumatic telescopic gripper (20), and a ventilation pipe (21). The semi-ring frame is the mounting base for the pneumatic telescopic gripper (20). The pneumatic telescopic gripper (20) is arranged on the semi-ring frame (2.1) and is pneumatically controlled by the ventilation pipe (21) to extend or retract radially in the semi-ring frame (2.1). There are 17 pneumatic telescopic grippers (20) evenly arranged along the circumference. The distance between the front end of the pneumatic telescopic gripper (20) closest to the radial center of the semi-annular frame (2.1) and the center is 10mm~36mm or 30mm~62mm or 58mm~85mm; The front end of the pneumatic telescopic gripper (20) has the same shape as the gear tooth profile; the front end of the pneumatic telescopic gripper (20) is provided with an anti-slip and anti-wear block at the radial center of the annular frame (2.1), and there is an movable gap between adjacent pneumatic telescopic grippers (20).
3. The reversible multi-functional fixture for a surface grinder according to claim 2, characterized in that: The reversible multi-functional fixture for the surface grinder also includes the following structure: a square fixture (7) and a square fixture groove (5); wherein: the square fixture (7) is a split structure composed of two parts, and a square fixture groove (5) is provided between the two parts that make up the square fixture (7). One of the two fastening screws (15) passes through the upper fastening screw hole (6), and the other passes through the lower fastening screw hole (11); the combined split structure constituting the spherical clamp (2) and the square clamp (7) is fixedly connected as a whole; The pneumatic telescopic gripper (20) is a movable gripper with a curved top trapezoidal cross-section.
4. The reversible multi-functional fixture for a surface grinder according to any one of claims 1-3, characterized in that: The reversible multi-functional fixture for the surface grinder meets one or a combination of the following requirements: Firstly, in the reversible multi-functional fixture of the surface grinder, an angle wheel (19) is provided on the shaft of the fixed gear (14) of the spherical fixture. When the spherical fixture (2), the square fixture (7) and the base (1) are in a horizontal state, the angle wheel displays an angle of 180°. When the spherical fixture (2) and the square fixture (7) are rotated, the angle pointer on the angle wheel (19) rotates accordingly. According to the processing requirements, the workpiece can be ground at the required angle. Secondly, the spherical clamp (2) or / and the square clamp (7) are provided with a buffer inner lining layered structure (22), which meets the following requirements: its surface layer is a polyurethane wear-resistant, corrosion-resistant and anti-slip layer (22.1) with a thickness of 2.8 mm; the middle layer is a fiber-reinforced material layer (22.2) with a thickness of 3.8 mm; and the bottom layer is a polyurethane high-adhesion material layer with a thickness of 1.8 mm.
5. The reversible multi-functional fixture for a surface grinder according to claim 4, characterized in that: The reversible multi-functional fixture for the surface grinder also includes: a square fixture fixing rod (8), a square fixture fixing rod gear (9), and a right rack (10). The square clamp fixing rod (8) is fixedly connected to the square clamp (7). The square clamp fixing rod (8) is equipped with a square clamp fixing rod gear (9) and meshes with the right rack (10).
6. The reversible multi-functional fixture for a surface grinder according to claim 4, characterized in that: The reversible multi-functional fixture for the surface grinder also includes an upper spring (3) and a lower spring (12). One of the two fastening screws (15) passes through the upper fastening screw hole (6) and the upper spring (3) in sequence, and the other passes through the lower fastening screw hole (11) and the lower spring (12) in sequence; the combined half-structure constituting the spherical clamp (2) and the square clamp (7) is fixedly connected as a whole; The upper spring (3) and the lower spring (12) are tension springs.
7. The reversible multi-functional fixture for a surface grinder according to claim 4, characterized in that: The reversible multi-functional fixture for the surface grinder also includes a right limit stop (17) that can fix the square fixture fixing rod gear (9) to a designated position, and a left limit stop (18) that can fix the spherical fixture fixing gear (14) to a designated position.