Vertical lathe fixture for machining hydraulic cylinder in slurry pump

Abstract

The utility model provides a vertical lathe fixture for machining a hydraulic cylinder in a slurry pump and belongs to the technical field of fixtures. Comprising a clamp disc base, a plurality of sliding block jacking assemblies used for jacking the periphery of a workpiece are evenly distributed on the periphery of the upper surface of the clamp disc base, a pressing plate assembly used for fixing and pressing the workpiece is arranged on the clamp disc base, and one side of the upper surface of the clamp disc base is connected with an adjustable counterweight assembly. According to the characteristics of the L-shaped structure of the slurry pump hydraulic cylinder, the adjustable counterweight assembly is arranged on one side of the upper portion of the clamp base, the counterweight assembly and the hydraulic cylinder are combined to enable stress on the clamp to be balanced, stress eccentricity cannot be generated, and therefore the service life of the clamp cannot be affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a vertical lathe clamp for machining a liquid cylinder in a mud pump. Background Art

[0002] Mud pump operation is one of the important equipment used in current oil drilling operations. The hydraulic cylinder is an important component of the mud pump. The structure of one type of hydraulic cylinder is as follows Figure 2 As shown, it is an L-shaped structure, and a suction hole needs to be processed on the hydraulic cylinder. In the prior art, the suction hole is usually processed on a vertical lathe, which requires the hydraulic cylinder to be fixed on the fixture of the vertical lathe. The fixture of the vertical lathe is generally fixed and positioned by a slider assembly and a pressure plate assembly. However, due to the asymmetry of the L-shaped hydraulic cylinder structure, when it is clamped on the fixture for rotation processing, the force on the fixture will be seriously eccentric. The eccentric operation of the fixture for a long time will greatly reduce the service life of the fixture. Therefore, it is necessary to propose improvements. Utility Model Content

[0003] The technical problem solved by the utility model is: to provide a vertical lathe clamp for processing the liquid cylinder in a mud pump. The utility model aims to provide an L-shaped structural feature of the liquid cylinder of the mud pump by arranging an adjustable counterweight assembly on one side of the upper part of the clamp base. The combination of the counterweight assembly and the liquid cylinder will balance the force on the clamp and will not cause eccentric force, thereby not affecting the service life of the clamp.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A vertical lathe fixture for processing the liquid cylinder in a mud pump includes a fixture disc base, a plurality of slider clamping assemblies for tightening a workpiece around the upper surface of the fixture disc base are evenly distributed around the upper surface, a pressure plate assembly for fixing and pressing the workpiece is provided on the fixture disc base, and an adjustable counterweight assembly is connected to one side of the upper surface of the fixture disc base.

[0006] Among them, the adjustable counterweight assembly includes an inverted U-shaped counterweight block, which is an inverted U-shaped structure composed of an upper counterweight block and two L-shaped side counterweight blocks. The inverted U-shaped counterweight block spans the upper part of a slider clamping assembly and the lower parts of both sides are fixedly connected to the clamp disc base.

[0007] Furthermore, the two L-shaped side counterweights are vertically set up on both sides of the corresponding slider clamping assembly, and the surfaces of the clamp disc bases on both sides of the corresponding slider clamping assembly are provided with T-shaped grooves III, and T-shaped bolts III are slidably connected to the T-shaped grooves III, and the lower part of the L-shaped side counterweight is fixedly connected by T-shaped bolts III and fastening nuts III.

[0008] Furthermore, the upper counterweight block is horizontally placed on the upper part of an L-shaped side counterweight block, and the upper part of the L-shaped side counterweight block is fixedly connected with a connecting bolt. Both ends of the upper counterweight block are provided with waist-shaped holes, and the connecting bolts pass through the waist-shaped holes and are screwed with connecting nuts to fix the upper counterweight block and the L-shaped side counterweight block together.

[0009] Furthermore, each of the slider tightening assemblies includes a tightening slider, and the tightening slider is provided with a radial T-shaped groove I at a position corresponding to the installation position on the clamp disc base, and a T-shaped bolt I is slidably connected in the T-shaped groove I, and the T-shaped bolt I passes through the hole on the tightening slider and is screwed with the fastening nut I.

[0010] Furthermore, the pressure plate assembly includes a pressure plate, and the pressure plate is provided with a radial T-shaped groove II at a position corresponding to the installation position on the clamp disc base. A T-shaped bolt II is slidably connected in the T-shaped groove II, and the T-shaped bolt II passes through the pressure plate and is screwed with a fastening nut II. The pressure plate assembly also includes a support column for auxiliary support for the tightening of the pressure plate.

[0011] The advantages of this utility model compared with the prior art:

[0012] 1. This solution is based on the L-shaped structural characteristics of the mud pump cylinder. By setting an adjustable counterweight assembly on one side of the upper part of the fixture base, when the cylinder is clamped on the fixture, the combination of the counterweight assembly and the cylinder will balance the force on the fixture, and will not cause eccentric force, thereby not affecting the service life of the fixture;

[0013] 2. In this solution, the counterweight assembly is set to an inverted U shape, and the inverted U-shaped counterweight block spans the upper part of a slider clamping assembly and the lower parts of both sides are fixedly connected to the fixture disc base. This structure will not only not interfere with the installation of the workpiece on the fixture, but also keep the forces on the left and right sides and both ends of the L-shaped cylinder balanced;

[0014] 3. This solution sets the counterweight assembly into an adjustable structure. The L-shaped side counterweight blocks on both sides of the inverted U-shaped counterweight block can be moved left and right according to the situation, so as to adapt to the use of workpieces with different spans and increase the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the clamp in the embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the liquid cylinder in the utility model. DETAILED DESCRIPTION

[0017] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0019] See also Figure 1-2 , describe the embodiments of the present utility model in detail.

[0020] Example: Vertical lathe fixture for machining the cylinder in a mud pump, see Figure 1 The structure shown includes a clamp disc base 1, on the upper surface of which a plurality of slider clamping assemblies 2 for clamping a workpiece are evenly distributed around the circumference, and a pressure plate assembly 3 for fixing and clamping the workpiece is provided on the clamp disc base 1, and an adjustable counterweight assembly 4 is connected to one side of the upper surface of the clamp disc base 1.

[0021] In this embodiment: in view of the L-shaped structural characteristics of the mud pump cylinder, an adjustable counterweight assembly is provided on one side of the upper part of the clamp base. When the cylinder is clamped on the clamp, the combination of the counterweight assembly and the cylinder will balance the force on the clamp and will not cause eccentric force, thereby not affecting the service life of the clamp.

[0022] In one embodiment: the adjustable counterweight assembly 4 includes an inverted U-shaped counterweight block 14, which is an inverted U-shaped structure composed of an upper counterweight block 15 and two L-shaped side counterweight blocks 16. The inverted U-shaped counterweight block 14 spans the upper part of a slider clamping assembly 2 and the lower parts of both sides are fixedly connected to the clamp disc base 1.

[0023] In the above embodiment: the counterweight assembly is arranged into an inverted U shape, and the inverted U-shaped counterweight block spans the upper part of a slider clamping assembly and the lower parts of both sides are fixedly connected to the clamp disc base. This structure will not only not interfere with the installation of the workpiece on the clamp, but also keep the forces on the left and right sides and both ends of the L-shaped cylinder balanced.

[0024] The specific structure is: the two L-shaped side counterweights 16 are vertically set up on both sides of the corresponding slider clamping assembly 2, and the surfaces of the clamp disc base 1 on both sides of the corresponding slider clamping assembly 2 are provided with T-shaped grooves III17, and the T-shaped grooves III17 are slidably connected with T-shaped bolts III18, and the lower part of the L-shaped side counterweight 16 is fixedly connected by T-shaped bolts III18 and fastening nuts III19.

[0025] The upper counterweight 15 is horizontally placed on the upper part of the L-shaped side counterweight 16, and the upper part of the L-shaped side counterweight 16 is fixedly connected with a connecting bolt 20. Both ends of the upper counterweight 15 are provided with waist-shaped holes 22. The connecting bolts 20 pass through the waist-shaped holes 22 and are screwed into the connecting nuts 21 to fix the upper counterweight 15 and the L-shaped side counterweight 16 together.

[0026] In this specific structure: the counterweight assembly is set as an adjustable structure, and the L-shaped side counterweight blocks on both sides of the inverted U-shaped counterweight block can be moved left and right and adjusted according to the situation, so as to adapt to the use of workpieces with different spans and increase the scope of use.

[0027] In one embodiment, each of the slider clamping components 2 includes a clamping slider 5, and the clamping slider 5 is provided with a radial T-shaped slot Ⅰ6 at a position corresponding to the mounting position on the fixture disc base 1, and a T-shaped bolt Ⅰ7 is slidably connected in the T-shaped slot Ⅰ6, and the T-shaped bolt Ⅰ7 passes through the hole on the clamping slider 5 and is screwed with the fastening nut Ⅰ8. The side of the workpiece is tightened by sliding the clamping slider 5 and fixed by the T-shaped bolt Ⅰ and the fastening nut Ⅰ.

[0028] In one embodiment: the pressing plate assembly 3 includes a pressing plate 9, and the pressing plate 9 is provided with a radial T-shaped groove II 12 at a position corresponding to the installation position on the fixture disc base 1, and a T-shaped bolt II 10 is slidably connected in the T-shaped groove II 12, and the T-shaped bolt II 10 passes through the pressing plate 9 and is screwed with a fastening nut II 11, and the pressing plate assembly 3 also includes a support column 13 for auxiliary support for pressing the pressing plate 9. The workpiece is pressed by the pressing plate and fixed by the T-shaped bolt II and the fastening nut II.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vertical lathe fixture for machining a hydraulic cylinder in a mud pump, comprising a fixture disc base (1), characterized in that: A plurality of slider clamping assemblies (2) for clamping a workpiece are evenly distributed around the upper surface of the clamp disc base (1), and a pressure plate assembly (3) for fixing and clamping the workpiece is provided on the clamp disc base (1). An adjustable counterweight assembly (4) is connected to one side of the upper surface of the clamp disc base (1).

2. The vertical lathe fixture for machining the cylinder in a mud pump according to claim 1, characterized in that: The adjustable counterweight assembly (4) comprises an inverted U-shaped counterweight block (14), wherein the inverted U-shaped counterweight block (14) is an inverted U-shaped structure formed by connecting an upper counterweight block (15) and two L-shaped side counterweight blocks (16). The inverted U-shaped counterweight block (14) spans the upper part of a slider clamping assembly (2) and the lower parts of both sides are fixedly connected to the clamp disc base (1).

3. The vertical lathe fixture for machining the cylinder in a mud pump according to claim 2, characterized in that: The two L-shaped side counterweights (16) are respectively vertically arranged on both sides of the corresponding slider clamping assembly (2), and the surfaces of the clamp disc base (1) on both sides of the corresponding slider clamping assembly (2) are provided with T-shaped grooves III (17), and the T-shaped grooves III (17) are slidably connected with T-shaped bolts III (18), and the lower part of the L-shaped side counterweight (16) is fixedly connected by T-shaped bolts III (18) and fastening nuts III (19).

4. The vertical lathe fixture for machining the cylinder in a mud pump according to claim 2, characterized in that: The upper counterweight (15) is horizontally placed on the upper parts of the two L-shaped side counterweights (16); the upper parts of the L-shaped side counterweights (16) are fixedly connected with connecting bolts (20); waist-shaped holes (22) are provided at both ends of the upper counterweight (15); the connecting bolts (20) pass through the waist-shaped holes (22) and are screwed into connecting nuts (21) to fix the upper counterweight (15) and the L-shaped side counterweights (16) together.

5. The vertical lathe fixture for machining the cylinder in a mud pump according to claim 1, characterized in that: Each of the slider clamping assemblies (2) includes a clamping slider (5), and the clamping slider (5) is provided with a radial T-shaped groove I (6) at a position corresponding to the installation position on the clamp disc base (1). A T-shaped bolt I (7) is slidably connected in the T-shaped groove I (6), and the T-shaped bolt I (7) passes through a hole on the clamping slider (5) and is screwed into a fastening nut I (8).

6. The vertical lathe fixture for machining the cylinder in a mud pump according to claim 1, characterized in that: The pressure plate assembly (3) includes a pressure plate (9), and the pressure plate (9) is provided with a radial T-shaped groove II (12) at a position corresponding to the installation position on the clamp disc base (1). A T-shaped bolt II (10) is slidably connected in the T-shaped groove II (12), and the T-shaped bolt II (10) passes through the pressure plate (9) and is screwed with a fastening nut II (11). The pressure plate assembly (3) also includes a support column (13) for auxiliary support of the tightening of the pressure plate (9).

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