Positioning clamp for polishing machine

Abstract

The utility model discloses a positioning fixture for a polishing machine, which relates to the technical field of positioning fixtures for polishing machines and comprises L-shaped support plates on two sides of the fixture, fixing threaded holes are arranged on two sides of the upper ends of the L-shaped support plates on two sides, fixing holes are equidistantly arranged on two sides of the lower ends of the L-shaped support plates, and a fixing plate covers the upper ends of the L-shaped support plates on two sides. By means of the lifting bolt between the lifting block and the clamping block, the interval between the lifting block and the clamping block can be conveniently adjusted by rotating the lifting bolt, the applicability of fixing different workpieces is improved, the function of fixing the workpieces with different lengths and sizes is further achieved, and through mutual cooperation of the two-way lead screw and the buffer spring, the clamping device is convenient to operate. According to the positioning clamp, the workpiece can be conveniently prevented from being collided in the clamping process, the workpiece can be clamped, the use convenience of the positioning clamp is improved, then the efficient and accurate workpiece positioning and clamping functions are achieved, and finally the problem that the workpiece is prone to loosening after being clamped due to the fact that the clamping force of the positioning clamp is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures for polishing machines, in particular to a positioning fixture for polishing machines. Background Art

[0002] Early polishing machines mainly relied on manual clamps, and operators manually adjusted the position of the workpiece, which had low precision and low efficiency. With the development of machining technology, simple mechanical clamps such as bolt fixing and spring clamping have emerged, which have improved positioning accuracy. The introduction of pneumatic technology controls the clamping force by air pressure, which improves the response speed of the clamp and the consistency of the clamping force. The clamp adopts a modular design, which is convenient for replacement and maintenance to meet the processing needs of different workpieces. The positioning fixture of the polishing machine consists of a fixture body, a positioning device, a power system, a V-block, a positioning plate and a buffer mechanism. However, during use, an existing positioning fixture for a polishing machine has a low clamping force, which causes the workpiece to loosen easily after clamping. Therefore, the above technical problems need to be solved. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a positioning fixture for a polishing machine.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a positioning fixture for a polishing machine, comprising an L-shaped support plate on both sides of the fixture, fixing threaded holes are opened on both sides of the upper ends of the L-shaped support plates on both sides, and fixing holes are opened on both sides of the lower ends of the L-shaped support plates at equal distances, the upper ends of the L-shaped support plates on both sides are covered with fixing plates, fixing threaded holes are opened on both sides of the fixing plates, and the two sides of the fixing plates are fixedly connected to the L-shaped support plates by fixing bolts.

[0005] Preferably, a through opening is provided in the middle of the upper end of the fixing plate, and grooves are provided on both sides of the through opening.

[0006] Preferably, connecting blocks are installed on the inner sides of the grooves at both ends, the upper ends of the connecting blocks are fixedly connected to the bottom surface of the middle part of one end of the clamping block, and lifting bolts are provided on both sides of the upper end of the clamping block.

[0007] Preferably, a lifting block is sleeved on the inner side of the lifting bolt, and a plurality of anti-slip strips are equidistantly provided on the inner sides of the lifting block and the clamping block.

[0008] Preferably, buffer plates are installed on both sides of the lower end of the through-hole, and there is a certain gap between the upper surface of the buffer plates on both sides and the bottom surface of the fixed plate.

[0009] Preferably, a buffer spring is fixed to the lower end of each buffer plate, the other end of each buffer spring is fixed to the positioning plate, and one side of the positioning plate is horizontally fixed between the connecting blocks.

[0010] Preferably, a bidirectional screw is installed between the horizontal L-shaped support plates, both ends of the bidirectional screw are sleeved with connecting blocks, and a knob is fixedly connected to the other side of the bidirectional screw, and the knob is installed on one side of the L-shaped support plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, through the extending and lowering bolts between the lifting block and the clamping block, it is convenient to adjust the interval between the lifting block and the clamping block by rotating the extending and lowering bolts, thereby improving the applicability of fixing different workpieces, thereby realizing the function of fixing workpieces of different lengths and sizes, and then through the cooperation of the bidirectional lead screw and the buffer spring, it is convenient to prevent collision during the clamping process of the workpiece, and the workpiece can be clamped, thereby improving the convenience of using the positioning fixture, thereby realizing the function of efficient and accurate workpiece positioning and clamping, and finally solving the problem that the clamping force of the positioning fixture is low, which causes the workpiece to loosen easily after clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the other side of the overall three-dimensional structure proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the overall local structure proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model when viewed from above;

[0017] Figure 5 This is a side structural schematic diagram of the utility model.

[0018] Serial numbers in the figure: 1. L-shaped support plate; 2. Fixing hole; 3. Fixing plate; 4. Fixing bolt; 5. Lifting block; 6. Clamping block; 7. Lifting bolt; 8. Anti-slip strip; 9. Through-hole; 10. Buffer plate; 11. Groove; 12. Connecting block; 13. Bidirectional screw; 14. Positioning plate; 15. Buffer spring; 16. Knob. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example: See Figure 1-5 The two ends of the L-shaped support plate 1 are fixed with the L-shaped support plate 1 at both ends, and the two ends of the L-shaped support plate 1 are fixed with L-shaped support plate 1 at both ends.

[0021] In the present invention, a lifting block 5 is sleeved on the inner side of the lifting bolt 7, and a plurality of anti-slip strips 8 are equidistantly provided on the inner sides of the lifting block 5 and the clamping block 6. The anti-slip strips 8 on the inner sides of the lifting block 5 and the clamping block 6 are used to prevent the workpiece from moving when clamped; buffer plates 10 are installed on both sides of the lower end of the through-hole 9, and there is a certain gap between the upper end surface of the buffer plates 10 on both sides and the bottom surface of the fixed plate 3. The buffer plates 10 are used to prevent the workpiece from bumping when installed inward; the lower ends of the buffer plates 10 are fixed with buffer springs 15, and the other ends of the buffer springs 15 are fixed with buffer springs 15. It is fixed on the positioning plate 14, and one side of the positioning plate 14 is horizontally fixed between the connecting blocks 12. The buffer spring 15 between the positioning plate 14 and the connecting block 12 is used to prevent the workpiece from being bumped when it is clamped and installed inward; a two-way screw 13 is installed horizontally between the L-shaped support plate 1, and both ends of the two-way screw 13 are sleeved with connecting blocks 12, and a knob 16 is fixed on the other side of the two-way screw 13. The knob 16 is installed on one side of the L-shaped support plate 1, and the two-way screw 13 and the knob 16 are used to facilitate clamping according to workpieces of different diameters.

[0022] Working principle: When using the present invention, first, the L-shaped support plate 1 and the fixing hole 2 are used to facilitate the installation and fixation of the positioning fixture, and then the fixing plate 3 and the fixing bolt 4 are used to provide a stable support platform, and then the through-hole 9 and the groove 11 are used to facilitate the installation of the fixing fixture mechanism, and then the connecting block 12 is used to prevent the positioning fixture from falling off, and then the lifting bolts 7 on the lifting block 5 and the clamping block 6 are used to facilitate the adjustment of the gap between the lifting block 5 and the clamping block 6 to fix workpieces of different sizes, and then the anti-slip strip 8 is used to improve the stability of the workpiece during clamping, and then the buffer spring 15 between the buffer plate 10 and the positioning plate 14 is used to prevent the workpiece from being bumped during installation, and then the bidirectional screw 13 and the knob 16 are used to control the clamping block 6 and the lifting block 5 to clamp towards the middle.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning fixture for a polishing machine, comprising L-shaped support plates (1) on both sides of the fixture, characterized in that: Both sides of the upper ends of the L-shaped support plates (1) are provided with fixing threaded holes, and both sides of the lower ends of the L-shaped support plates (1) are provided with fixing holes (2) at equal distances. The upper ends of the L-shaped support plates (1) on both sides are covered with fixing plates (3), and both sides of the fixing plates (3) are provided with fixing threaded holes, and the two sides of the fixing plates (3) are fixedly connected to the L-shaped support plates (1) by fixing bolts (4).

2. A positioning fixture for a polishing machine according to claim 1, characterized in that: A through opening (9) is provided in the middle of the upper end of the fixing plate (3), and grooves (11) are provided on both sides of the through opening (9).

3. The positioning fixture for a polishing machine according to claim 2, characterized in that: Connecting blocks (12) are installed inside the grooves (11) at both ends. The upper ends of the connecting blocks (12) are fixed to the bottom surface of the middle part of one end of the clamping block (6). Lifting bolts (7) are provided on both sides of the upper end of the clamping block (6).

4. The positioning fixture for a polishing machine according to claim 3, characterized in that: A lifting block (5) is sleeved on the inner side of the lifting bolt (7), and a plurality of anti-slip strips (8) are equidistantly provided on the inner sides of the lifting block (5) and the clamping block (6).

5. The positioning fixture for a polishing machine according to claim 2, characterized in that: Buffer plates (10) are installed on both sides of the lower end of the through-hole (9), and there is a certain gap between the upper end surfaces of the buffer plates (10) on both sides and the bottom surface of the fixed plate (3).

6. The positioning fixture for a polishing machine according to claim 5, characterized in that: The lower ends of the buffer plates (10) are fixed with buffer springs (15), the other ends of the buffer springs (15) are fixed to the positioning plates (14), and one side of the positioning plates (14) is horizontally fixed between the connecting blocks (12).

7. The positioning fixture for a polishing machine according to claim 1, characterized in that: A bidirectional screw (13) is installed between the horizontal planes of the L-shaped support plate (1), both ends of the bidirectional screw (13) are sleeved with connecting blocks (12), and a knob (16) is fixedly connected to the other side of the bidirectional screw (13), and the knob (16) is installed on one side of the L-shaped support plate (1).

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