Clamp special for rod type cutter of automatic sand blasting machine

Abstract

The utility model provides a special clamp for rod cutters of an automatic sand blasting machine, which comprises a bottom plate, a lower-layer plate and an upper-layer plate which are sequentially arranged, a support rod penetrates through the lower-layer plate and is fixed with the lower-layer plate, the lower end of the support rod is fixed with the bottom plate, and the upper end of the support rod is fixed with the upper-layer plate; a plurality of ejector rods are distributed on the bottom plate in the circumferential direction, a plurality of first through holes are formed in the lower-layer plate, a plurality of second through holes are formed in the upper-layer plate, the collet chucks sequentially penetrate through the second through holes and the first through holes from top to bottom, the bottoms of the collet chucks are inserted into the ejector rods, and gaps exist between the collet chucks and the ejector rods; a lower-layer T-shaped gasket is arranged in the first through hole, an upper-layer T-shaped gasket is arranged in the second through hole, and the upper-layer T-shaped gasket and the lower-layer T-shaped gasket are arranged on the outer side of the collet chuck in a sleeving mode. By improving the connecting structures of the collet, the upper layer plate, the lower layer plate, the bottom plate and the like, the collet can rotate more smoothly, the uniformity of sand blasting is ensured, and defective product production in the production process is eliminated; and through the T-shaped gasket, the friction coefficient is small, the production cost generated by replacement of quick-wear parts is reduced, and the replacement frequency of the quick-wear parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tool spraying equipment, in particular to a special fixture for rod-type tools of an automatic sandblasting machine. Background Art

[0002] During the machining process, the tool surface needs to be treated by sandblasting or other methods to effectively passivate the tool edge, improve surface hardness and wear resistance, and enhance adhesion and coating quality. The tool needs to be clamped and fixed in place during the sandblasting process to prevent movement or deformation during the sandblasting process and to ensure uniform coating.

[0003] At present, the collet and the layer of the rod-type tool sandblasting fixture are directly connected, and the layer and the collet are both made of steel. During the rotation of the collet, the mutual friction between steel and steel can easily cause wear and tear on the connecting hole between the layer and the collet or the surface of the collet. Therefore, the spraying process causes wear and damage to the entire fixture, and new fixture accessories need to be frequently replaced, which increases production costs. In addition, the performance is not ideal. The fixture often gets stuck at the connection between the collet and the base plate, as well as the layer and the collet, and cannot be rotated, resulting in uneven sandblasting on the product surface and defective products. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to eliminate the generation of defective products in the production process, reduce the frequency of replacement of wearing parts, and lower the production cost of replacement of wearing parts, the utility model provides a special fixture for rod-type tools of automatic sandblasting machine.

[0005] The technical solution to be adopted by the utility model to solve its technical problem is: a special fixture for rod-type tools of an automatic sandblasting machine, comprising a bottom plate, a lower plate, an upper plate, a top rod, a support column, a lower T-shaped gasket, an upper T-shaped gasket and a collet, wherein the bottom plate, the lower plate and the upper plate are arranged in parallel from bottom to top, the support rods are multiple, passing through the lower plate and fixedly connected to the lower plate, the lower ends of the support rods extend downwardly and are fixedly connected to the bottom plate, and the upper ends extend upwardly and are fixedly connected to the upper plate, and the support rods are used to support between the bottom plate, the lower plate and the upper plate;

[0006] The cam is secured to a position adjacent to the top of the base plate and secured to a location adjacent to the top of the base plate so that the cam can be secured to a location adjacent to the top of the base plate.

[0007] Furthermore, the collet surface is provided with a DLC coating. The self-lubricating DLC coating (short for diamond-like carbon coating, a surface coating technology that forms a polymer carbon film on a metal surface) on the collet surface reduces friction between the upper and lower T-shaped washers, making the collet rotate more smoothly.

[0008] Furthermore, the lower T-shaped gasket and the upper T-shaped gasket are both made of Teflon material. Teflon material has a relatively low friction coefficient, which can ensure smooth rotation of the collet and further avoid the jamming phenomenon.

[0009] Furthermore, the collet includes a cylindrical body, an upper hole axially defined at the upper end of the cylindrical body, a lower hole axially defined at the lower end of the cylindrical body, and a textured portion on the outer wall of the cylindrical body at one end of the lower hole. The textured portion improves the friction coefficient of the cylindrical body, facilitates better connection with the sandblasting equipment, ensures that each collet can rotate, and thus ensures that the tools in the collet are evenly processed.

[0010] Further preferably, the inner diameters of the upper hole and the lower hole are the same.

[0011] Furthermore, the bottom plate is provided with a plurality of concave holes along the circumference, the bottom of the push rod is inserted into the concave holes, and the top of the push rod is inserted into the lower hole of the collet to support the collet, and a gap is left between the bottom of the collet and the surface of the bottom plate. The push rod lifts the collet, reducing contact with the bottom plate, reducing friction, and further ensuring smooth rotation.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a special fixture for rod-type tools of an automatic sandblasting machine, which makes the rotation of the collet smoother by improving the connection structure between the collet and the upper and lower plates, the bottom plate, etc., thereby ensuring the uniformity of sandblasting and eliminating the production of defective products in the production process; by adding a T-shaped gasket, the collet is not in direct contact with the upper and lower plates, which is convenient for replacement due to wear and tear, and reduces the production cost of replacing wearing parts; and the T-shaped gasket is made of Teflon material with a small friction coefficient, which reduces the frequency of replacement of wearing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 The utility model is a three-dimensional structural diagram of a special fixture for rod-type tools of an automatic sandblasting machine.

[0015] Figure 2 The utility model is a schematic diagram of the exploded structure of a special fixture for rod-type tools of an automatic sandblasting machine.

[0016] Figure 3 It is a structural diagram of a collet.

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the collet.

[0018] Figure 5 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1. bottom plate, 2. top rod, 3. support column, 4. lower plate, 5. upper plate, 6. lower T-type gasket, 7. upper T-type gasket, 8. collet, 8.1. cylinder, 8.2. upper hole, 8.3. lower hole, 8.4. textured part. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating the basic structure of the present invention only in a schematic manner. They therefore only show components relevant to the present invention, and directions and references (e.g., up, down, left, right, etc.) are intended solely to facilitate description of features in the drawings. The following detailed description is therefore not to be taken in a limiting sense, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0021] like Figure 1 and Figure 2As shown, the utility model is a special fixture for rod-type tools of an automatic sandblasting machine, comprising a bottom plate 1, a lower plate 4, an upper plate 5, a push rod 2, a support column 3, a lower T-shaped gasket 6, an upper T-shaped gasket 7 and a collet 8, wherein the bottom plate 1, the lower plate 4 and the upper plate 5 are arranged in parallel from bottom to top, and there are multiple support rods, which pass through the lower plate 4 and are fixedly connected to the lower plate 4. The lower end of the support rod extends downward and is fixedly connected to the bottom plate 1, and the upper end extends upward and is fixedly connected to the upper plate 5. The support rod is used to support between the bottom plate 1, the lower plate 4 and the upper plate 5; a plurality of push rods 2 are distributed circumferentially on the outer circumference of the bottom plate 1, a plurality of first through holes are circumferentially provided on the outer circumference of the lower plate 4, and a plurality of second through holes are circumferentially provided on the outer circumference of the upper plate 5, and a counting mark is also provided on the surface of the upper plate 5 in the inner circle of the second through holes to indicate the corresponding collet 8. The positions and numbers of the first and second through holes match the push rod 2 one by one. The collet 8 is multiple and passes through the second through hole and the first through hole in sequence from top to bottom. The bottom of the collet 8 is connected to the push rod 2, and there is a gap between the collet 8 and the push rod 2, which can ensure that the collet 8 can rotate freely. This solves the problem of the collet 8 and the base plate 1 being stuck. The collet 8 can rotate freely, ensuring the sandblasting effect. Each first through hole is provided with a lower T-shaped gasket 6, and each second through hole is provided with an upper T-shaped gasket 7. The lower T-shaped gasket 6 and the upper T-shaped gasket 7 are both sleeved on the outside of the collet 8 to isolate the collet 8 from the lower plate 4 and the upper plate 5, reducing the wear between the collet 8 and the lower plate 4 and the upper plate 5. When replacing, only two gaskets need to be replaced, without having to replace both the upper and lower plates, saving maintenance costs. The lower T-shaped gasket 6 and the upper T-shaped gasket 7 are both made of Teflon. The friction coefficient of Teflon material is relatively low, which can ensure the smooth rotation of the collet 8 and further avoid the jamming phenomenon.

[0022] like Figure 3 and Figure 4 As shown, the collet 8 includes a barrel 8.1, an upper hole 8.2 is axially formed at the upper end of the barrel 8.1, a lower hole 8.3 is axially formed at the lower end of the barrel 8.1, and a textured portion 8.4 is provided on the outer wall of the barrel 8.1 at one end of the lower hole 8.3. The textured portion 8.4 can increase the friction coefficient of the barrel 8.1 so that it can be better connected to the sandblasting equipment with the barrel 8.1, ensuring that each collet 8 can rotate, thereby ensuring that the tool in the collet 8 can be processed evenly. The inner diameters of the upper hole 8.2 and the lower hole 8.3 are the same. The surface of the collet 8 is provided with a DLC coating. The surface of the collet 8 is coated with a self-lubricating DLC coating to reduce the friction between the upper T-type gasket 7 and the lower T-type gasket 6, so that the collet 8 rotates more smoothly.

[0023] like Figure 5As shown, the base plate 1 is provided with a plurality of concave holes along its circumference. The bottom of the push rod 2 is inserted into the concave holes, and the top of the push rod 2 is inserted into the lower hole 8.3 of the collet 8 to support the collet 8. A gap h is left between the bottom of the collet 8 and the surface of the base plate 1. The push rod 2 lifts the collet 8, reducing contact with the base plate 1, reducing friction, and further ensuring smooth rotation.

[0024] Working principle: When sandblasting, place the rod-type tool in the upper hole 8.2 of the collet 8, insert the tool head in the upper hole 8.2, extend the tool rod upward and expose it to the sandblasting environment, and drive the collet 8 to rotate through the sandblasting equipment to achieve sandblasting.

[0025] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the scope of the present invention. The technical scope of this utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A special fixture for rod-type tools of automatic sandblasting machine, characterized by: It includes a bottom plate, a lower plate, an upper plate, a top rod, a support column, a lower T-shaped gasket, an upper T-shaped gasket and a collet, wherein the bottom plate, the lower plate and the upper plate are arranged in parallel from bottom to top, and there are multiple support rods that pass through the lower plate and are fixedly connected to the lower plate. The lower end of the support rod extends downward and is fixedly connected to the bottom plate, and the upper end extends upward and is fixedly connected to the upper plate. The support rod is used to support between the bottom plate, the lower plate and the upper plate; A plurality of push rods are distributed circumferentially on the outer circumference of the bottom plate, a plurality of first through holes are provided circumferentially on the outer circumference of the lower plate, a plurality of second through holes are provided circumferentially on the outer circumference of the upper plate, and the positions and numbers of the first through holes and the second through holes match the push rods one by one. There are multiple collets, which pass through the second through holes and the first through holes in sequence from top to bottom, and the bottom is inserted into the push rod. The bottom of the collet is connected to the push rod, and there is a gap between the collet and the push rod, which can ensure the free rotation of the collet; a lower T-shaped gasket is provided in each first through hole, and an upper T-shaped gasket is provided in each second through hole, and the lower T-shaped gasket and the upper T-shaped gasket are both sleeved on the outside of the collet.

2. The special fixture for rod-type tools of an automatic sandblasting machine according to claim 1, characterized in that: The surface of the collet is provided with a DLC coating.

3. The special fixture for rod-type tools of an automatic sandblasting machine according to claim 1, characterized in that: The lower T-shaped gasket and the upper T-shaped gasket are both made of Teflon material.

4. The special fixture for rod-type tools of an automatic sandblasting machine according to claim 1, characterized in that: The collet comprises a cylinder body, an upper hole is axially opened at the upper end of the cylinder body, a lower hole is axially opened at the lower end of the cylinder body, and a textured portion is provided on the outer wall of the cylinder body at one end of the lower hole.

5. The special fixture for rod-type tools of an automatic sandblasting machine according to claim 4, characterized in that: The inner diameters of the upper hole and the lower hole are the same.

6. The special fixture for rod-type tools of an automatic sandblasting machine according to claim 4, characterized in that: The bottom plate is provided with a plurality of concave holes along the circumference, the bottom of the push rod is inserted into the concave hole, and the top of the push rod is inserted into the lower hole of the collet to support the collet, and a gap is left between the bottom of the collet and the surface of the bottom plate.

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