CN-224209141-U - Fixed bolster finish turning frock

Abstract

The utility model discloses a fixed bracket finish turning tool, which relates to the technical field of lathe tools and aims to solve the problem that the existing tool cannot meet the requirement of performing efficient and thorough turning on a small-size workpiece, and comprises a fixed seat, one end of the fixed seat is provided with a tensioning head which is in conical arrangement, the one end that rises tight head and deviate from the fixing base sets up to the tight portion that rises of cylinder type to be used for installing the work piece, the fixing base with it wears to be equipped with a pull rod jointly to rise in the tight head, the one end of pull rod be provided with the push away piece that rises tight portion looks adaptation, in order to be used for promoting rise tight portion outwards expands.

Inventors

• Sun Runjin
• WANG YEPENG
• SU HUIBIN
• LI CHENGLONG
• YU CHANGWEI

Assignees

• 沈阳嘉润机械设备有限公司

Dates

Publication Date

20260508

Application Date

20260323

Claims (4)

1. 1. The fixed support finish turning tool is characterized by comprising a fixed seat (1), wherein one end of the fixed seat (1) is provided with a tensioning head (2), the tensioning head (2) is in conical arrangement, one end of the tensioning head (2) deviating from the fixed seat (1) is provided with a cylindrical tensioning part for installing a workpiece (7), the fixed seat (1) and the tensioning head (2) are internally provided with a pull rod (3) in a penetrating mode, and one end of the pull rod (3) is provided with a pushing block (31) matched with the tensioning part for pushing the tensioning part to outwards spread.
2. 2. The fixed support finish turning tool as set forth in claim 1, wherein the tensioning head (2) comprises a plurality of tensioning blocks (21), the plurality of tensioning blocks (21) jointly form a conical arrangement, one end of each tensioning block (21) deviating from the fixed seat (1) is integrally provided with a mounting head (22), and the plurality of mounting heads (22) jointly form the tensioning part arrangement.
3. 3. The fixture of claim 2, wherein the inner cavity of the tensioning part is in a horn shape, and the pushing block (31) is also in a horn shape.
4. 4. The fixed support finish turning tool as claimed in claim 1, wherein an adjusting block (4) is further installed in the fixed seat (1), one end of the pull rod (3) in the fixed seat (1) is fixedly connected with the adjusting block (4), a clamping groove (41) is formed in the side wall of the adjusting block (4), a avoiding groove (11) is formed in the fixed seat (1) corresponding to the clamping groove (41), a U-shaped frame (5) is inserted in the clamping groove (41), the top end of the U-shaped frame (5) extends out of the fixed seat (1) from the avoiding groove (11), an adjusting ring (6) is further connected onto the fixed seat (1) in a threaded mode, and the adjusting ring (6) is arranged on one side, close to the tensioning head (2), of the U-shaped frame (5) and abuts against the U-shaped frame (5).

Description

Fixed bolster finish turning frock Technical Field The utility model relates to the technical field of lathe tools, in particular to a fixed bracket finish turning tool. Background The finish turning tool is special technological equipment used in the finish turning process of mechanical machining, and has the core function of ensuring that a workpiece can reach high dimensional accuracy, forming tolerance and excellent surface roughness required by drawings. At present, most finish turning tools are mainly positioned in clamping or jacking modes, such as a precision chuck and a mandrel, but for small-sized drums or open-ended precision parts, certain processing limitations exist in the clamping or jacking positioning modes, if the clamping tools are used for clamping small workpieces, the tools can cover the surface area of parts of the workpieces, the clamped parts cannot be turned, the clamping parts need to be replaced to finish the turning process, the turning efficiency is seriously reduced in the two clamping processes, when the jacking mode is used for positioning the small-sized workpieces, the distance between the two jacking tools is greatly reduced, the processing space of the turning tools is further reduced, the problem that interference occurs between the tools and the turning tools is easy to occur in the processing process, and the surfaces of the workpieces cannot be completely machined. Disclosure of utility model In order to solve the problems that the existing fixture cannot meet the requirement of performing efficient and thorough turning on a small-size workpiece, the utility model provides a fixed support finish turning fixture, which comprises a fixed seat, wherein one end of the fixed seat is provided with a tensioning head, the tensioning head is in a conical shape, one end of the tensioning head, which is away from the fixed seat, is provided with a cylindrical tensioning part for installing the workpiece, a pull rod is jointly arranged in the fixed seat and the tensioning head in a penetrating manner, and one end of the pull rod is provided with a pushing block matched with the tensioning part for pushing the tensioning part to outwards expand. The utility model further provides that the tensioning head comprises a plurality of tensioning blocks, the plurality of tensioning blocks jointly form a conical arrangement, one end of each tensioning block, which is away from the fixed seat, is also integrally provided with a mounting head, and the plurality of mounting heads jointly form the tensioning part arrangement. The utility model is further provided with the advantages that the inner cavity of the tensioning part is in a horn shape, and the pushing block is also in a horn shape. The utility model is further characterized in that an adjusting block is further arranged in the fixing seat, one end of the pull rod, which is arranged in the fixing seat, is fixedly connected with the adjusting block, a clamping groove is formed in the side wall of the adjusting block, a avoiding groove is formed in the fixing seat corresponding to the clamping groove, a U-shaped frame is inserted in the clamping groove, the top end of the U-shaped frame extends out of the fixing seat from the avoiding groove, an adjusting ring is further connected onto the fixing seat in a threaded manner, the adjusting ring is arranged on one side, close to the tensioning head, of the U-shaped frame, and the adjusting ring abuts against the U-shaped frame. The beneficial effects of the utility model are as follows: Through setting up the portion that rises, can realize the purpose that rises to a section of thick bamboo class or uncovered class work piece that the volume is less, and then guarantee the problem that gland work piece surface portion can not appear in the location to the work piece, make turning technology can once only accomplish, need not carry out the secondary clamping, simultaneously, the back of tensioning location, one side that the work piece deviates from the frock does not need to set up any other frock, further assurance lathe tool's space of movement, avoid the lathe tool to produce with the frock and interfere to influence turning process. Drawings Fig. 1 shows a reference diagram in the use state of the utility model. Figure 2 shows a cross-sectional view in the direction A-A of figure 1. Fig. 3 shows a schematic structural view of the present utility model. Fig. 4 shows a cross-sectional view in the direction B-B in fig. 3. Fig. 5 shows a partial cross-sectional view of the holder. Reference numeral 1, a fixed seat; 11, avoiding grooves, 2, tensioning heads, 21, tensioning blocks, 22, mounting heads, 3, pull rods, 31, pushing blocks, 4, adjusting blocks, 41, clamping grooves, 5, U-shaped frames, 6, adjusting rings and 7, and workpieces. Detailed Description Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be und