Special polishing clamp for slender shaft

Abstract

A polishing clamp special for a slender shaft relates to the technical field of clamp devices and comprises a base, sliding grooves are symmetrically formed in the two ends of the base, a first clamp assembly and a second clamp assembly are slidably mounted on the two sliding grooves respectively, and two air cylinders are fixedly mounted between the first clamp assembly and the second clamp assembly. Output shafts of the two air cylinders are connected with the first clamp assembly and the second clamp assembly respectively. The workpiece is clamped through the first clamping groove in the fixing sleeve and the second clamping groove in the chuck, the fixing sleeve and the workpiece are in flexible connection through the spring, the workpiece is not prone to deformation due to stress, and the possibility of deformation of the workpiece is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture devices, in particular to a special polishing fixture for slender shafts. Background Art

[0002] A slender shaft refers to a shaft with a length to diameter ratio greater than 25 (ie, L / D greater than 25).

[0003] The rigidity of slender shafts is poor. During the outer diameter polishing process of slender shaft parts, there has been no handy fixture to meet the needs of operators to meet the production process requirements, resulting in the outer diameter polishing of slender shaft parts failing to meet production needs, reducing the pass rate and increasing production costs. Utility Model Content

[0004] The utility model provides a special polishing fixture for a slender shaft.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A polishing fixture specially designed for slender shafts comprises a base, and slide grooves are symmetrically installed at both ends of the base, and a first fixture assembly and a second fixture assembly are slidably installed on the two slide grooves respectively, the first fixture assembly comprises a first bracket, a sliding sleeve, a first connecting rod and a spring, the first bracket is slidably installed on the slide groove, the top of the first bracket is provided with an installation groove, the sliding sleeve is fixedly installed in the installation groove, the first connecting rod is slidably installed in the sliding sleeve, the first connecting rod is sleeved with a spring, the second fixture assembly comprises a second bracket and a second connecting rod, the bottom of the second bracket is slidably installed on the slide groove, one end of the second connecting rod passes through the second bracket and is screwed together with the second fixing nut, the other end of the second connecting rod is connected to a chuck, and a second slot is provided at one end of the chuck, two cylinders are fixedly installed between the first fixture assembly and the second fixture assembly, and the output shafts of the two cylinders are respectively connected to the first fixture assembly and the second fixture assembly.

[0007] A further preferred solution of the utility model is that one end of the first connecting rod passes through the sliding sleeve and is screwed together with the first fixing nut, the other end of the first connecting rod is connected to the fixing sleeve, one end of the spring is connected to the sliding sleeve, and the other end of the spring is connected to the fixing sleeve.

[0008] A further preferred solution of the utility model is that the fixing sleeve and the first connecting rod are both cylindrical, and the diameter of the fixing sleeve is larger than the diameter of the first connecting rod, and a first clamping groove is provided at one end of the fixing sleeve.

[0009] According to a further preferred embodiment of the present invention, both the first bracket and the second bracket are L-shaped, and the first bracket and the second bracket are symmetrically slidably mounted on the slide groove.

[0010] A further preferred solution of the present invention is that the axes of the first card slot and the second card slot are located on the same horizontal plane, and the first card slot and the second card slot cooperate with each other.

[0011] The utility model has the following benefits:

[0012] 1. The utility model clamps the workpiece by the first clamping groove on the fixing sleeve and the second clamping groove on the chuck. The fixing sleeve and the workpiece are connected by a spring soft connection. The workpiece is not easily deformed by force, thus reducing the possibility of deformation of the workpiece.

[0013] 2. The utility model controls the first bracket and the second bracket through the cylinder, so as to load and unload materials, and the disassembly and assembly of workpieces is flexible and convenient, saving the operation labor service cost, and the operation is simple, rapid and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the chuck of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the first bracket of the utility model;

[0017] In the figure: 1 base, 2 slide groove, 3 cylinder, 4 first bracket, 5 sliding sleeve, 6 spring, 7 fixing sleeve, 8 first fixing nut, 9 first connecting rod, 10 chuck, 11 second bracket, 12 second fixing nut, 13 second connecting rod, 14 second slot. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0019] according to Figure 1-3 As shown, a polishing fixture specially used for slender shafts comprises a base 1, with slide grooves 2 symmetrically installed at both ends of the base 1, a first clamp assembly and a second clamp assembly are slidably installed on the two slide grooves 2 respectively, two cylinders 3 are fixedly installed between the first clamp assembly and the second clamp assembly, and the output shafts of the two cylinders 3 are respectively connected to the first clamp assembly and the second clamp assembly.

[0020] The first clamp assembly includes a first bracket 4, a sliding sleeve 5, a first connecting rod 9 and a spring 6. The first bracket 4 is slidably installed on the sliding groove 2. A mounting groove is opened on the top of the first bracket 4. The sliding sleeve 5 is fixedly installed in the mounting groove. The first connecting rod 9 is slidably installed in the sliding sleeve 5. The first connecting rod 9 is sleeved with a spring 6.

[0021] One end of the first connecting rod 9 passes through the sliding sleeve 5 and is screwed together with the first fixing nut 8, the other end of the first connecting rod 9 is connected to the fixing sleeve 7, one end of the spring 6 is connected to the sliding sleeve 5, and the other end of the spring 6 is connected to the fixing sleeve 7.

[0022] The fixing sleeve 7 and the first connecting rod 9 are both cylindrical, and the diameter of the fixing sleeve 7 is larger than the diameter of the first connecting rod 9 . A first clamping groove is formed at one end of the fixing sleeve 7 .

[0023] The second clamp assembly includes a second bracket 11 and a second connecting rod 13. The bottom of the second bracket 11 is slidably installed on the slide groove 2. One end of the second connecting rod 13 passes through the second bracket 11 and is screwed together with the second fixing nut 12. The other end of the second connecting rod 13 is connected to the chuck 10. A second slot 14 is provided at one end of the chuck 10.

[0024] The first bracket 4 and the second bracket 11 are both L-shaped, and the first bracket 4 and the second bracket 11 are symmetrically slidably installed on the slide groove 2 .

[0025] The axes of the first clamping groove and the second clamping groove 14 are on the same horizontal plane, and the first clamping groove and the second clamping groove 14 cooperate with each other. Such an arrangement can ensure the stability of fixing the workpiece.

[0026] Working principle: When the workpiece needs to be clamped, the cylinder 3 is controlled to work, so that the cylinder 3 pushes the first bracket 4 and the second bracket 11 to move to both sides. Then, the two ends of the workpiece are placed in the first slot of the fixing sleeve 7 and the second slot 14 of the chuck 10 respectively, and the cylinder 3 is controlled to shrink. The cylinder 3 controls the first bracket 4 and the second bracket 11 to move toward the middle until the spring 6 on the first connecting rod 9 shrinks one end distance, then the cylinder 3 is stopped and polishing work can be carried out.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polishing fixture specially designed for slender shafts, characterized in that: The invention comprises a base (1), two ends of the base (1) are symmetrically mounted with slide grooves (2), a first clamp assembly and a second clamp assembly are respectively slidably mounted on the two slide grooves (2), the first clamp assembly comprises a first bracket (4), a sliding sleeve (5), a first connecting rod (9) and a spring (6), the first bracket (4) is slidably mounted on the slide groove (2), a mounting groove is provided on the top of the first bracket (4), the sliding sleeve (5) is fixedly mounted in the mounting groove, the first connecting rod (9) is slidably mounted in the sliding sleeve (5), the first connecting rod (9) is sleeved with a spring (6), and the second clamp assembly The component comprises a second bracket (11) and a second connecting rod (13). The bottom of the second bracket (11) is slidably mounted on the slide groove (2). One end of the second connecting rod (13) passes through the second bracket (11) and is screwed together with a second fixing nut (12). The other end of the second connecting rod (13) is connected to the clamp (10). A second clamping groove (14) is provided at one end of the clamp (10). Two cylinders (3) are fixedly mounted between the first clamp assembly and the second clamp assembly. The output shafts of the two cylinders (3) are respectively connected to the first clamp assembly and the second clamp assembly.

2. A polishing fixture for a slender shaft according to claim 1, characterized in that: One end of the first connecting rod (9) passes through the sliding sleeve (5) and is screwed together with the first fixing nut (8), the other end of the first connecting rod (9) is connected to the fixing sleeve (7), one end of the spring (6) is connected to the sliding sleeve (5), and the other end of the spring (6) is connected to the fixing sleeve (7).

3. A polishing fixture for a slender shaft according to claim 2, characterized in that: The fixing sleeve (7) and the first connecting rod (9) are both cylindrical, and the diameter of the fixing sleeve (7) is larger than the diameter of the first connecting rod (9). A first clamping groove is provided at one end of the fixing sleeve (7).

4. A polishing fixture for a slender shaft according to claim 1, characterized in that: The first bracket (4) and the second bracket (11) are both L-shaped, and the first bracket (4) and the second bracket (11) are symmetrically slidably mounted on the slide groove (2).

5. The special polishing fixture for slender shaft according to claim 1, characterized in that: The axes of the first card slot and the second card slot (14) are located on the same horizontal plane, and the first card slot and the second card slot (14) cooperate with each other.

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