Hydraulic valve sleeve machining and positioning clamp

Abstract

The utility model relates to a hydraulic valve sleeve machining positioning clamp which comprises a horizontally-arranged workbench, vertical stand arms are symmetrically fixed to the workbench, a sliding mechanism is connected between the vertical stand arms and comprises an arc-shaped rail plate and a sliding seat, an arc-shaped groove is formed in the arc-shaped rail plate, and the sliding seat can slide in the arc-shaped groove. A clamping and positioning part is connected to the sliding seat, and the sliding seat slides in the arc-shaped groove, so that the valve sleeve clamped by the clamping and positioning part is turned over from a vertical state to a horizontal state; the clamping and positioning component comprises an outer protective frame, and a bottom carrying plate and an upper pressing plate are connected to the outer protective frame. The valve sleeve clamping device has the advantages that it can be guaranteed that a valve sleeve is vertically supported when clamped and cannot fall off easily, meanwhile, the valve sleeve can be rotated in the valve sleeve machining process, multi-angle machining of the valve sleeve is facilitated, and the clamping state and the machining state of the valve sleeve can be switched conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic valve processing, and in particular relates to a hydraulic valve sleeve processing positioning fixture. Background Art

[0002] The hydraulic valve sleeve is a columnar component. The valve core can be installed in the hydraulic valve sleeve. The hydraulic valve sleeve needs to be finely processed before use, that is, turning, drilling and other processing processes. During the processing, a positioning fixture is needed to fix the hydraulic valve sleeve. In the prior art, a hydraulic valve sleeve processing positioning fixture is disclosed, and the document number is: CN219747093U. The technical solution includes a base, and the base is provided with two opposite vertical plates. Both vertical plates are connected with a fixed pressure plate. There is a certain distance between the fixed pressure plate and the base. The valve sleeve is clamped and fixed at a certain height by the fixed pressure plate, and multiple linear slides are used to adjust the position of the second vertical plate to meet the needs of positioning and fixing valve sleeves of different axial lengths. Then, the valve sleeve is rotated by the cooperation of the driving motor, the driving gear and the driven gear.

[0003] The above scheme can realize the positioning and rotation processing of the valve sleeve, but the fixture clamps the valve sleeve in the air, and there is no vertical support under the valve block. When the processed valve sleeve is removed, the valve sleeve needs to be unclamped. At this time, if the valve sleeve is not manually supported, the valve sleeve will fall directly from the air, resulting in scratches or other damages on the surface of the valve sleeve, and there are also safety hazards to the staff. Utility Model Content

[0004] The utility model aims to provide a hydraulic valve sleeve machining and positioning fixture which is convenient for switching the machining state and the clamping state of the valve sleeve and the valve sleeve is not easy to fall off.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a hydraulic valve sleeve processing positioning fixture, including a horizontally arranged workbench, vertical arms are symmetrically fixed on the workbench, a sliding mechanism is connected between the vertical arms, the sliding mechanism includes an arc-shaped rail plate and a sliding seat, both ends of the arc-shaped rail plate are fixed to the vertical arms, an arc-shaped groove is provided on the arc-shaped rail plate, the sliding seat can slide in the arc-shaped groove, a clamping and positioning component is connected to the sliding seat, the clamping and positioning component includes an outer guard frame, a bottom carrier plate and an upper pressure plate are connected to the outer guard frame, when the bottom carrier plate and the upper pressure plate are in a horizontal state, the upper pressure plate is located above the bottom carrier plate and the center lines of the two coincide, the valve sleeve can be vertically placed on the bottom carrier plate and clamped by the upper pressure plate and the bottom carrier plate, and the valve sleeve clamped by the clamping and positioning component is flipped from a vertical state to a horizontal state by the sliding seat sliding in the arc-shaped groove.

[0006] Furthermore, a positioning hole is provided on the arc-shaped rail plate, the positioning hole is vertically connected to the arc-shaped groove, and a locking member is provided in the positioning hole, and the locking member can lock the position of the sliding seat.

[0007] Furthermore, the sliding seat includes a curved sliding rod and an arc-shaped supporting rod. The curved sliding rod is fitted in the arc-shaped groove. A pin hole is provided on the curved sliding rod. The curved sliding rod and the arc-shaped supporting rod are fixed by a connecting rod. The outer guard frame is fixed on the arc-shaped supporting rod.

[0008] Furthermore, the outer guard frame includes a flat bottom plate and a high plate, the high plate is located directly above the flat bottom plate, the bottom carrier plate and the upper pressure plate are respectively connected to the flat bottom plate and the high plate, and both the bottom carrier plate and the upper pressure plate are provided with anti-slip pads.

[0009] Furthermore, the flat bottom plate and the high-position plate are connected via side sealing plates, and both ends of the arc-shaped supporting rod are fixed to the side sealing plates.

[0010] Furthermore, the upper pressing plate is connected with a vertical moving screw rod, which controls the vertical movement of the upper pressing plate. An outer ring is fixedly connected to the upper pressing plate, which controls the rotation of the upper pressing plate.

[0011] Furthermore, a limit hole is provided on the side sealing plate, a limit bolt is screwed into the limit hole through a thread, and a hole groove corresponding to the horizontal through hole is provided on the bottom carrier plate, and the limit bolt can be screwed into the hole groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation between the sliding seat and the clamping and positioning component, when the clamping and positioning component clamps or cancels the valve sleeve, the sliding seat will cooperate in the clamping and positioning groove, so that the bottom carrier plate and the upper pressure plate are both in a horizontal state, and the valve sleeve is in a vertical state. At this time, the bottom carrier plate is located below the valve sleeve, providing vertical support for the valve sleeve to prevent the valve sleeve from falling; when processing the stably clamped valve sleeve, the sliding seat will cooperate with the processing positioning groove, so that the bottom carrier plate and the upper pressure plate are in a vertical state, and the valve sleeve is in a horizontal state, which is convenient for processing, and through the cooperation between the extension ring and the first and second bearings, the upper pressure plate can drive the valve sleeve and the bottom carrier plate to rotate synchronously, which is convenient for multi-angle processing of the valve sleeve, and through the cooperation between the sliding seat and the arc groove, the clamping and positioning component can be switched back and forth between the processing state and the clamping state;

[0013] The utility model can ensure that the valve sleeve is vertically supported when clamped and will not fall off easily. At the same time, the valve sleeve can be rotated during the valve sleeve processing, which is convenient for multi-angle processing of the valve sleeve and convenient for switching the clamping state and processing state of the valve sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model in the processing state;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model in the clamping state;

[0016] Figure 3It is a three-dimensional structural schematic diagram of the clamping and positioning component of the utility model;

[0017] Figure 4 It is a schematic diagram of the connection structure between the clamping positioning component and the sliding seat in the clamping state of the utility model;

[0018] Figure 5 It is a schematic diagram of the connection structure between the clamping and positioning components and the sliding seat in the processing state of the utility model;

[0019] Figure 6 It is a schematic diagram of the main structural section of the arc-shaped track plate of the utility model;

[0020] Figure 7 It is a schematic diagram of the cross-sectional structure of the arc-shaped rail plate of the utility model;

[0021] Among them, 1-workbench, 2-vertical arm, 3-sliding mechanism, 4-clamping and positioning component, 5-outer guard frame, 6-flat bottom plate, 7-high position plate, 8-side sealing plate, 9-bottom carrier plate, 10-upper pressure plate, 11-anti-slip pad, 12-first bearing, 13-vertical screw, 14-gripping wheel, 15-second bearing, 16-rotating column, 17-extension ring, 18-limiting hole, 19-hole groove, 20-limiting bolt, 21-arc rail plate, 22-sliding seat, 23-arc groove, 24-processing positioning hole, 25-clamping positioning hole, 26-curved slide rod, 27-arc support rod, 28-connecting rod, 29-pin hole, 30-positioning pin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model. In the embodiment, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but only represents the selected embodiments of the present application.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] See also Figure 1 to Figure 2 As shown, see Figure 1 to Figure 2 As shown, a hydraulic valve sleeve processing and positioning fixture comprises a horizontally arranged workbench 1, on which two vertical arms 2 are symmetrically fixed, a sliding mechanism 3 is connected between the two vertical arms 2, and a clamping and positioning component 4 is connected to the sliding mechanism 3. The clamping and positioning component 4 can stably clamp the valve sleeve and can rotate the stably clamped valve sleeve to achieve multi-angle processing of the valve sleeve; the clamping and positioning component 4 can slide along the sliding mechanism 3, and during the sliding process, the clamping and positioning component 4 can be changed from a clamping state to a processing state. In the clamping state, the valve sleeve is in a vertical state, and the clamping and positioning component 4 can provide vertical support for the valve sleeve. When the processing is completed and the clamping of the valve sleeve is cancelled, the valve sleeve is supported from below and will not fall directly. In the processing state, the valve sleeve is in a horizontal state, which is convenient for direct contact with the processing equipment, and the multi-angle processing of the valve sleeve is facilitated by rotating the clamping and positioning component 4.

[0025] See also Figures 3 to 5 As shown, the above-mentioned clamping and positioning component 4 includes an outer guard frame 5, the outer guard frame 5 is a U-shaped frame body, the outer guard frame 5 includes a flat bottom plate 6 and a high plate 7, the high plate 7 is located directly above the flat bottom plate 6, the flat bottom plate 6 and the high plate 7 are connected by a side sealing plate 8 to form a U-shaped frame body, and a bottom carrier plate 9 and an upper pressure plate 10 are respectively connected to the flat bottom plate 6 and the high plate 7. The bottom carrier plate 9 and the upper pressure plate 10 are both circular plates, and the center lines of the bottom carrier plate 9 and the upper pressure plate 10 coincide. The valve sleeve can be placed on the bottom carrier plate 9, and anti-slip pads 11 are provided on the bottom carrier plate 9 and the upper pressure plate 10, which can increase the valve sleeve. The friction between the sleeve and the bottom carrier plate 9 and the upper pressure plate 10 improves the stability of clamping. At this time, the bottom carrier plate 9 and the upper pressure plate 10 are both in a horizontal state, and the valve sleeve is in a vertical state. This state is set as a clamping state; when the bottom carrier plate 9 and the upper pressure plate 10 are both in a vertical state, the valve sleeve is in a horizontal state, and this state is set as a processing state; in the clamping state, the upper pressure plate 10 and the bottom carrier plate 9 can cooperate to clamp the valve sleeve. In the processing state, the upper pressure plate 10 can rotate and drive the valve sleeve and the bottom carrier plate 9 to rotate, and the valve sleeve is processed at multiple angles. Specifically:

[0026] A first bearing 12 is provided on the upper surface of the upper pressing plate 10, and a vertical screw 13 is fixedly connected to the inner ring of the first bearing 12. The outer ring of the first bearing 12 is fixed to the upper pressing plate 10. A threaded hole is provided on the high-position plate 7, and the upper end of the vertical screw 13 passes through the threaded hole and is threadedly connected to the threaded hole. A gripping wheel 14 is connected to the upper end of the vertical screw 13. By rotating the gripping wheel 14, the vertical screw 13 can drive the upper pressing plate 10 to move vertically.

[0027] At the same time, a second bearing 15 is arranged on the lower surface of the bottom carrier plate 9, and the inner ring of the second bearing 15 is fixedly connected with a rotating column 16, and the lower end of the rotating column 16 is fixed to the flat bottom plate 6. The bottom carrier plate 9 cannot move vertically. When clamping the valve sleeve, the valve sleeve is placed on the bottom carrier plate 9, and the vertical screw 13 is controlled to move vertically downward by rotating the gripping wheel 14 until the upper pressure plate 10 contacts the valve sleeve. The upper pressure plate 10 cooperates with the bottom carrier plate 9 to form a stable clamping of the valve sleeve therebetween, and then because the bottom carrier plate 9 and the upper pressure plate 10 are both in a rotatable state, the clamped workpiece can be rotated and adjusted at this time.

[0028] In order to realize multi-angle processing of the valve sleeve, an extension ring 17 is fixedly connected to the outer circumferential surface of the upper pressure plate 10. When the valve sleeve is stably clamped by the upper pressure plate 10 and the bottom carrier plate 9, a steering force is applied to the extension ring 17, so that the upper pressure plate 10 can drive the valve sleeve and the bottom carrier plate 9 to rotate synchronously. During the rotation process, the first bearing 12 and the second bearing 15 can reduce the friction generated by the rotation of the upper pressure plate 10 and the bottom carrier plate 9. Therefore, during processing, the staff only needs to apply a small steering force to the extension ring 17 to rotate the valve sleeve, thereby adjusting the processing angle of the valve sleeve.

[0029] At this time, a limiting hole 18 is opened on the side sealing plate 8, and a hole groove 19 corresponding to the limiting hole 18 is opened on the bottom carrier plate 9. The center axis of the hole groove 19 and the limiting hole 18 are on the same straight line, and the limiting bolt 20 is screwed into the limiting hole 18. The limiting bolt 20 can be screwed to be threadedly connected with the hole groove 19, so that the side sealing plate 8 and the bottom carrier plate 9 are connected; when the limiting bolt 20 is screwed into the limiting hole 18 and the hole groove 19 at the same time, the bottom carrier plate 9 is connected to the side sealing plate 8, and the bottom carrier plate 9 is restricted by the limiting bolt 20 and cannot rotate synchronously with the upper pressure plate 10. When the limiting bolt 20 is separated from the hole groove 19 and is only screwed with the limiting hole 18, the bottom carrier plate 9 is not restricted and can It rotates synchronously with the upper pressure plate 10. Therefore, when the valve sleeve is clamped, that is, the clamping and positioning component 4 is in the clamping state, the limit bolt 20 needs to be screwed into the limit hole 18 and the hole groove 19 at the same time, so that the bottom carrier plate 9 always remains stable and does not rotate during the process of clamping the valve sleeve, thereby ensuring that the valve sleeve is not subjected to torque when being clamped; and when the valve sleeve is processed, that is, the clamping and positioning component 4 is in the processing state, the limit bolt 20 needs to be withdrawn from the hole groove 19 and only screwed into the limit hole 18 to ensure that the bottom carrier plate 9 can rotate synchronously with the upper pressure plate 10, and the direction of the clamping force on the valve sleeve is always consistent. At this time, the valve sleeve surface can be processed with a turning tool.

[0030] See also Figures 4 to 7 As shown, the sliding mechanism 3 includes an arc-shaped rail plate 21 and a sliding seat 22. The two ends of the arc-shaped rail plate 21 are respectively fixed to the vertical arms 2 on the corresponding sides. A combined slide groove is provided on the arc-shaped rail plate 21. The sliding seat 22 cooperates in the combined slide groove and can slide and position in the combined slide groove. The combined slide groove includes an arc-shaped groove 23 and a positioning hole. The arc-shaped groove 23 is set to a T-shaped cross-section. The arc-shaped groove 23 has the same curvature as the arc-shaped rail plate 21. The positioning hole includes a machining positioning hole 24 and a clamping positioning hole 25. The machining positioning hole 24 and the clamping positioning hole 25 are both connected to the arc-shaped groove 23, wherein the machining positioning hole 24 is located in the middle part of the arc-shaped groove 23, and the clamping positioning hole 25 is located at the end of the arc-shaped groove 23. Locking members can be provided in the machining positioning hole 24 and the clamping positioning hole 25, so as to lock the position of the sliding seat 22 at different positions.

[0031] The sliding seat 22 includes a curved sliding rod 26 and an arc-shaped supporting rod 27. The curved sliding rod 26 fits in the arc-shaped groove 23 and can slide. The curved sliding rod 26 is fixed to the arc-shaped supporting rod 27 by a connecting rod 28. The connecting rod 28 can be provided in multiples, which has higher stability. The clamping and positioning component 4 is connected to the arc-shaped supporting rod 27. The cross section of the curved sliding rod 26 is set to be T-shaped, so that it fits in the arc-shaped groove 23 and cannot be separated from the arc-shaped groove 23. At this time, the sliding seat 22 can slide in the arc-shaped groove 23, so that the valve sleeve clamped by the clamping and positioning component 4 is flipped from a vertical state to a horizontal state.

[0032] When the position of the sliding seat 22 is adjusted and locked, the locking member can be a bolt. At this time, the inner walls of the processing positioning hole 24 and the clamping positioning hole 25 need to have threads. When the bolt is screwed in, the end of the bolt can be against the side wall of the sliding seat 22, thereby forming a positioning;

[0033] The locking member can also use a locking pin 30. In this case, a pin hole 29 corresponding to the positioning hole is provided on the curved slide bar 26. When the curved slide bar 26 slides in the arc groove 23, it can drive the clamping and positioning component 4 to move accordingly. When the pin hole 29 on the curved slide bar 26 is aligned with the processed positioning hole 24, the locking pin 30 is inserted, and the sliding seat 22 can be fixed to the arc rail plate 21 and cannot move further. At this time, the clamping and positioning component 4 is in a processing state; when the pin hole 29 on the curved slide bar 26 is aligned with the clamping positioning hole 24, the locking pin 30 is inserted, and the sliding seat 22 cannot move further. At this time, the clamping and positioning component 4 is in a clamping state. Since the structural form of using the locking pin 30 and the pin hole 29 to cooperate has high convenience, this form of structure is preferably used in this application to position the sliding seat 22.

[0034] In the initial state, the curved sliding rod 26 is fitted into the arc groove 23 and fixedly connected with the clamping positioning hole 25 through the locking pin 30. At this time, the clamping positioning component 4 is in the clamping state, and the valve sleeve is stably clamped by the clamping positioning component 4. Then the locking pin 30 is pulled out, and the curved sliding rod 26 is disconnected from the clamping positioning hole 25. The curved sliding rod 26 slides along the arc groove 23 until the pin hole 29 is aligned with the processing positioning hole 24. The clamping positioning component 4 moves accordingly, and the locking pin 30 is inserted into the processing positioning hole 24 and the pin hole 29. The clamping and positioning component 4 is changed from the clamping state to the processing state. After the processing is completed, the positioning pin 30 is pulled out to cancel the connection between the curved slide bar 26 and the processing positioning hole 24. Then the curved slide bar 26 is moved in the opposite direction along the arc groove 23 to the pin hole 29 to align the clamping and positioning hole 25. The positioning pin 30 is inserted again to change the clamping and positioning component 4 from the processing state to the clamping state. At this time, the clamping of the valve sleeve by the clamping and positioning component 4 is cancelled, and the valve sleeve is taken away, thus completing the processing flow of a valve sleeve. If further processing is required, the above process can be repeated.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A hydraulic valve sleeve processing and positioning fixture, comprising a horizontally arranged workbench, on which vertical arms are symmetrically fixed, characterized in that: A sliding mechanism is connected between the vertical arms, and the sliding mechanism includes an arc-shaped rail plate and a sliding seat. The two ends of the arc-shaped rail plate are fixed to the vertical arms, and an arc-shaped groove is provided on the arc-shaped rail plate, and the sliding seat can slide in the arc-shaped groove; The sliding seat is connected with a clamping and positioning component, which includes an outer guard frame, and the outer guard frame is connected with a bottom carrier plate and an upper pressure plate. When the bottom carrier plate and the upper pressure plate are in a horizontal state, the upper pressure plate is located above the bottom carrier plate and the center lines of the two coincide. The valve sleeve can be placed vertically on the bottom carrier plate and clamped by the upper pressure plate and the bottom carrier plate; The sliding seat slides in the arc groove, so that the valve sleeve clamped by the clamping positioning component is turned over from a vertical state to a horizontal state.

2. A hydraulic valve sleeve machining and positioning fixture according to claim 1, characterized in that: The arc-shaped rail plate is provided with a positioning hole, which is vertically connected with the arc-shaped groove. A locking piece is matched in the positioning hole, and the locking piece can lock the position of the sliding seat.

3. A hydraulic valve sleeve machining and positioning fixture according to claim 2, characterized in that: The sliding seat comprises a curved sliding rod and an arc-shaped supporting rod. The curved sliding rod is fitted in the arc-shaped groove. A pin hole is arranged on the curved sliding rod. The curved sliding rod and the arc-shaped supporting rod are fixed by a connecting rod. The outer guard is fixed on the arc-shaped supporting rod.

4. A hydraulic valve sleeve machining and positioning fixture according to claim 1 or 3, characterized in that: The outer guard frame comprises a flat bottom plate and a high plate, the high plate is located directly above the flat bottom plate, the bottom carrier plate and the upper pressure plate are respectively connected to the flat bottom plate and the high plate, and both the bottom carrier plate and the upper pressure plate are provided with anti-skid pads.

5. A hydraulic valve sleeve machining and positioning fixture according to claim 4, characterized in that: The flat bottom plate and the high-position plate are connected through side sealing plates, and the two ends of the arc-shaped supporting rod are fixed to the side sealing plates.

6. A hydraulic valve sleeve machining and positioning fixture according to claim 4, characterized in that: The upper pressing plate is connected with a vertical moving screw rod, which controls the vertical movement of the upper pressing plate. An outer ring is fixedly connected to the upper pressing plate, which controls the rotation of the upper pressing plate.

7. The hydraulic valve sleeve machining and positioning fixture according to claim 5, characterized in that: The side sealing plate is provided with a limit hole, the inner thread of the limit hole is screwed with a limit bolt, and the bottom carrier plate is provided with a hole groove corresponding to the horizontal through hole, and the limit bolt can be screwed into the hole groove.

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