Special tool for roller machining

Abstract

The utility model discloses a special tool for roller machining. The special tool comprises a main shaft, two sliding seats connected to the main shaft in a sliding mode and supporting structures arranged on the sliding seats. Compared with the mode that two-time clamping is needed in existing equipment, the tool only needs one-time clamping and positioning, the clamping procedure is greatly simplified, the clamping time is saved, the machining efficiency is improved, the machining cost is reduced, and the machining efficiency is improved; the positioning of the outer circle of the roller is replaced by the positioning of the central axis of the roller, so that the influence of improper clamping and fastening force of the outer circle on the hole machining precision is avoided, the positioning precision is higher, the concentricity of a workpiece is effectively ensured, and the machining precision is improved; the tool is reasonable in structural design and simple in operation process, an operator does not need to have an extremely high clamping alignment technology, and the technical requirement for manual operation is lowered.

Description

Technical Field

[0001] This utility model relates to the field of roller processing technology, specifically a special tooling for roller processing. Background Technology

[0002] In the field of turning of roller parts, there are machining processes for the inner hole, outer circle and end face of various roller workpieces. Due to the large number of machining parts and the extremely high precision requirements, lathes are generally used for machining.

[0003] The current machining method involves clamping the outer diameter and supporting it with a center rest. After machining one end, the clamping process must be repeated before machining the other end, which significantly increases the machining difficulty. Moreover, the workpiece needs to be aligned and clamped twice, making it difficult to guarantee the concentricity accuracy. If the tightening force is not properly controlled when clamping the outer diameter, it will directly affect the machining accuracy of the hole. Utility Model Content

[0004] The purpose of this utility model is to provide a special tooling for roller processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A special tooling for roller processing includes a spindle, two sliding seats slidably connected to the spindle, and a support structure set on the sliding seats. The support structure consists of four support components symmetrically arranged on the four sides of the sliding seats. Each support component includes a guide sleeve, a bearing, a rotating sleeve, and a support column. The guide sleeve is fixedly connected to the sliding seat, and a bearing is provided on the outer side of the guide sleeve. The bearing is fixedly connected to the sliding seat and rotatably connected to the rotating sleeve through the bearing. The top end of the rotating sleeve has an internal threaded hole, and the support column passes through the internal threaded hole and is installed inside the guide sleeve.

[0007] As a further embodiment of this utility model: the spindle is in the shape of a long shaft, and the two ends of the spindle are respectively provided with center holes. The shape of the center holes is adapted to the double center structure of the lathe. The cross section of the spindle is square, and all four edges are chamfered. Multiple sets of positioning grooves are arranged axially at intervals on the outer surface of the spindle. Each set of positioning grooves includes positioning grooves symmetrically arranged on the four outer surfaces of the spindle. A first limiting groove is opened on both sides of the inner wall of each positioning groove.

[0008] As a further embodiment of this utility model: the sliding seat is sleeved outside the main shaft and slidably connected to the main shaft. Slider blocks are fixedly connected to the two inner walls of the sliding seat respectively. Sliding grooves are opened on the two opposite side walls of the main shaft, and the sliders are slidably connected to the sliding grooves.

[0009] As a further embodiment of this utility model: through holes are symmetrically opened on the four sides of the sliding seat, a connecting hole is opened on the sliding seat, and multiple threaded holes are opened at equal intervals on the main shaft, and the bolt passes through the connecting hole and is threadedly connected to the threaded hole.

[0010] As a further embodiment of this utility model: the support column consists of a screw at the lower end and a support part at the upper end, and the screw is threadedly connected to the internal threaded hole.

[0011] As a further embodiment of this utility model: the diameter of the guide sleeve is larger than the diameter of the screw, and limit blocks are fixedly connected to both sides of the bottom of the screw. A second limit groove is opened in the guide sleeve, which is opposite to the first limit groove. The limit block is slidably connected to the first limit groove and the second limit groove.

[0012] As a further improvement of this utility model, the support assembly also includes a locking nut, which is threaded onto a screw outside the rotating sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: A special tooling for roller processing, compared to the existing equipment which requires two clamping operations, only requires one clamping and positioning operation, significantly simplifying the clamping process, saving clamping time, improving processing efficiency, reducing processing costs, and increasing processing efficiency; using roller center axis positioning instead of roller outer circle positioning avoids the impact of improper outer circle clamping tightening force on hole processing accuracy, resulting in higher positioning accuracy and effectively ensuring the concentricity of the workpiece, thereby improving processing accuracy; this tooling has a reasonable structural design, simple operation process, and does not require operators to possess extremely high clamping and alignment skills, reducing the technical requirements for manual operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the clamping structure of a special tooling for roller processing.

[0015] Figure 2 This is a schematic diagram of a special tooling for roller processing.

[0016] Figure 3 This is a cross-sectional view of a tooling fixture for roller processing in its clamping state.

[0017] Figure 4 This is an enlarged view of point A in a special tooling for roller processing.

[0018] Figure 5 This is a schematic diagram of the spindle structure in a special tooling for roller machining.

[0019] Figure 6 This is an enlarged view of point B in a special tooling for roller processing.

[0020] Figure 7 This is a schematic diagram of the sliding seat in a special tooling for roller processing.

[0021] Figure 8 This is a cross-sectional view of a support component in a special tooling for roller processing.

[0022] In the figure: spindle 1, center hole 11, positioning groove 12, first limiting groove 13, threaded hole 14, slide groove 15, sliding seat 2, slider 21, through hole 22, connecting hole 23, support structure 3, guide sleeve 31, bearing 32, rotating sleeve 33, internal threaded hole 331, support column 34, screw 341, support part 342, limiting block 343, locking nut 35. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-8 In this embodiment of the utility model, a special tooling for roller processing includes a spindle 1, two sliding seats 2 slidably connected to the spindle 1, and a support structure 3 disposed on the sliding seats 2.

[0025] The spindle 1 is long and has a center hole 11 at each end. The shape of the center hole 11 is adapted to the double center structure of the lathe and is used to achieve precise positioning during lathe machining. The spindle 1 has a square cross section and all four edges are chamfered. Multiple sets of positioning grooves are arranged axially on the outer surface of the spindle 1. Each set of positioning grooves includes positioning grooves 12 symmetrically arranged on the four outer surfaces of the spindle 1. A first limiting groove 13 is opened on both sides of the inner wall of each positioning groove 12.

[0026] The sliding seat 2 is sleeved on the outside of the main shaft 1 and slidably connected to the main shaft 1. Slider blocks 21 are fixedly connected to the two inner walls of the sliding seat 2. Slide grooves 15 are formed on the two opposite side walls of the main shaft 1, and the sliders 21 are slidably connected to the slide grooves 15. Depending on the size of the roller 4, the positions of the two supporting components 3 can be adjusted by adjusting the positions of the two sliding seats 2, thus fixing rollers 4 of different sizes. Through holes 22 are symmetrically formed on the four sides of the sliding seat 2, and connecting holes 23 are formed on the sliding seat 2. Multiple threaded holes 14 are formed at equal intervals on the main shaft 1. Bolts pass through the connecting holes 23 and are threadedly connected to the threaded holes 14 at the desired positions, thus fixing the sliding seat 2 to the main shaft 1.

[0027] The support structure 3 consists of four support components symmetrically arranged on the four sides of the sliding seat 2. Each support component includes a guide sleeve 31, a bearing 32, a rotating sleeve 33, a support column 34, and a locking nut 35. The guide sleeve 31 is fixedly connected to the outside of the through hole 22 of the sliding seat 2. A bearing 32 is provided on the outside of the guide sleeve 31 and is fixedly connected to the sliding seat 2. The rotating sleeve 33 is rotatably connected to the bearing 32. An internal threaded hole 331 is opened at the top of the rotating sleeve 33. The support column 34 passes through the internal threaded hole 331 and is installed inside the guide sleeve 31. The support column 34 consists of a lower screw 341 and an upper support part 342. The screw 341 is threadedly connected to the internal threaded hole 331, and the support part 342 is used to support the fixed roller 4. The diameter of the guide sleeve 31 is larger than the diameter of the screw 341, which guides the movement of the screw 341. Limiting blocks 343 are fixedly connected to both sides of the bottom of the screw 341. A second limiting groove 311 is opened inside the guide sleeve 31, which is opposite to the first limiting groove 13. The limiting blocks 343 are slidably connected to the first limiting groove 13 and the second limiting groove 311 to limit the movement of the screw 341.

[0028] When the rotating sleeve 33 is rotated, the screw 341 is threadedly connected to the internal threaded hole 331 of the rotating sleeve 33, and the second limiting groove 311 is slidably connected to the limiting block 343 of the screw 341 for limiting. The screw 341 can only move along its axial direction, thereby driving the screw 341 and the support part 342 to move axially and support and fix the roller 4.

[0029] To make the support column 34 more stable in supporting and fixing the roller 4, a locking nut 35 is threaded onto the screw 341 outside the rotating sleeve 33. After adjustment, the locking nut 35 is rotated to lock and prevent accidental movement.

[0030] The working principle of this utility model is as follows: First, based on the required length of the roller 4 to be positioned and mounted, the distance between the two sliding seats 2 is adjusted. The two sliding seats 2 are then embedded into the groove 15 of the main shaft 1 via the slider 21. At this time, the lower end of the support column 34 in the support structure 3 on the sliding seat 2 is inside the guide sleeve 31. Then, the distance between the two sliding seats 2 is adjusted, and the sliding seats 2 are moved to a set of positioning grooves. Then, the sliding seats 2 are fixed with bolts. After the sliding seats 2 are fixed, the rotating sleeve 33 is rotated to make the lower end of the support column 34 enter the positioning groove 12 of the main shaft 1, so that the support structure 3 is in its initial state. Then, the main shaft 1, together with the sliding seats 2 and the support structure 3, is horizontally inserted into the roller 4, and then placed on a base. By rotating the rotating sleeve 33, the extension length of the screw 341 is adjusted so that the support part 342 is close to the inner wall of the roller 4, supporting and fixing the inner wall of the roller 4. Finally, the locking nut 35 is tightened to lock and fix it. Then the tooling is hoisted onto the lathe so that the center hole 11 of the spindle 1 is fully engaged with the double centers of the lathe, and then the roller 4 can be machined.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A special tooling for roller processing, comprising a spindle (1), two sliding seats (2) slidably connected to the spindle (1), and a support structure (3) disposed on the sliding seats (2), characterized in that, The support structure (3) consists of four support components symmetrically arranged on the four sides of the sliding seat (2). The support components include a guide sleeve (31), a bearing (32), a rotating sleeve (33), and a support column (34). The guide sleeve (31) is fixedly connected to the sliding seat (2). The bearing (32) is provided on the outside of the guide sleeve (31). The bearing (32) is fixedly connected to the sliding seat (2). The rotating sleeve (33) is rotatably connected through the bearing (32). The top of the rotating sleeve (33) is provided with an internal thread hole (331). The support column (34) passes through the internal thread hole (331) and is installed in the guide sleeve (31).

2. The special tooling for roller processing according to claim 1, characterized in that, The spindle (1) is long and has a center hole (11) at each end. The shape of the center hole (11) is adapted to the double center structure of the lathe. The cross section of the spindle (1) is square and all four edges are chamfered. Multiple sets of positioning grooves are arranged axially on the outer surface of the spindle (1). Each set of positioning grooves includes positioning grooves (12) symmetrically arranged on the four outer surfaces of the spindle (1). A first limiting groove (13) is opened on both sides of the inner wall of each positioning groove (12).

3. The special tooling for roller processing according to claim 2, characterized in that, The sliding seat (2) is sleeved on the outside of the main shaft (1) and is slidably connected to the main shaft (1). Slider (21) is fixedly connected to the two inner walls of the sliding seat (2). Sliding grooves (15) are opened on the two opposite side walls of the main shaft (1). Slider (21) is slidably connected to the sliding grooves (15).

4. The special tooling for roller processing according to claim 3, characterized in that, The sliding seat (2) has through holes (22) symmetrically opened on its four sides. The sliding seat (2) has connecting holes (23) opened on its side. The main shaft (1) has multiple threaded holes (14) opened at equal intervals. The bolt passes through the connecting holes (23) and is threadedly connected to the threaded holes (14).

5. The special tooling for roller processing according to claim 4, characterized in that, The support column (34) consists of a screw (341) at the lower end and a support part (342) at the upper end. The screw (341) is threadedly connected to the internal threaded hole (331).

6. The special tooling for roller processing according to claim 5, characterized in that, The diameter of the guide sleeve (31) is larger than the diameter of the screw (341). Limiting blocks (343) are fixedly connected to both sides of the bottom of the screw (341). A second limiting groove (311) is opened in the guide sleeve (31) opposite to each other. The second limiting groove (311) is arranged opposite to the first limiting groove (13). The limiting block (343) is slidably connected to the first limiting groove (13) and the second limiting groove (311).

7. A special tooling for roller processing according to claim 6, characterized in that, The support assembly also includes a locking nut (35), which is threaded onto a screw (341) outside the rotating sleeve (33).

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