Quick remodeling clamp for mechanical pump
By designing a combination of positioning support structure, abutment structure and clamping structure, the problem of existing fixtures being incompatible with mechanical pump housing covers of different sizes was solved, realizing a simple and reasonable fixture design, improving operation convenience and clamping stability, and enhancing machining efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-27
AI Technical Summary
The existing fixture structure layout is unreasonable, cannot be compatible with mechanical pump housing covers of different sizes, the fixture design is complicated, disassembly and assembly are inconvenient, and clamping is unstable and unreliable, which affects machining efficiency.
A quick-change fixture for mechanical pumps was designed, comprising a positioning support structure, an abutment structure, and a clamping structure. By combining the positioning support surface, positioning shaft, abutment surface, and clamping end, stable positioning and uniform clamping of shells of different sizes can be achieved.
The fixture has a simple and reasonable structure, is compatible with workpieces of different sizes, is easy to operate, has reliable clamping, and improves machining efficiency.
Smart Images
Figure CN224043170U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to machining technical field, especially a kind of quick change fixture of mechanical pump. BACKGROUND
[0002] As Figure 1 And Figure 2 It is four cylinder mechanical pump shell cover structure schematic diagram, as Figure 3 And Figure 4 It is six cylinder mechanical pump shell cover structure schematic diagram;Shell cover overall is plate-shaped structure design, first boss 1 is respectively arranged in the both ends position of shell cover lower side surface, boss hole 2 is respectively arranged on first boss, a plurality of support bosses 3 are also respectively arranged in the both ends position of shell cover lower side surface.
[0003] Shell cover upper side surface is assembly surface, assembly cavity 4 is arranged in one end of assembly surface, and installation cavity is formed with a circle rectangular structure design assembly plane 5 around open mouth;A plurality of assembly holes 6 are arranged in the one side edge position of assembly plane;Installation port 7 is arranged in the other end of assembly surface, and installation plane 8 is formed with a circle outside installation port, and installation screw hole 9 is arranged on installation plane.When clamping shell cover and processing shell cover upper side surface using fixture, the machining of assembly cavity, assembly plane, assembly hole, installation port, installation plane and installation screw hole needs to be completed.
[0004] However, the existing fixture structure has the following shortcomings: 1, layout is not reasonable enough, cannot be compatible with different size shell cover processing;2, fixture structure design is relatively complex, cannot quickly complete positioning and clamping of shell cover, disassembly is not convenient enough, affect machining efficiency;3, clamping is not stable and reliable enough. INVENTION CONTENTS
[0005] In view of the above defects of prior art, the technical problem to be solved by the utility model is how to design a kind of quick change fixture of mechanical pump, which has simpler and more reasonable structure design, can better compatible with different size workpiece clamping, can be more convenient to operate and use, and clamping is reliable.
[0006] In order to achieve the above object, the utility model provides a kind of mechanical pump quick changeover fixture, including base, clamping station is formed on base upper surface and is used to place the shell cover to be clamped;Its characterized in that;It has the first boss of positioning support structure on base and corresponding shell cover lower surface, positioning support structure has the support surface of being supported on the lower surface of first boss, positioning support structure also has the locating shaft of being inserted into boss hole;It has abutting structure on base and corresponding shell cover lower surface and has the support boss, abutting structure has the abutting surface of being supported on the lower surface of support boss;It is also provided with compression structure on clamping station, and compression structure has four compression ends and can be respectively pressed in shell cover both ends, and each provides downward compression force.
[0007] In this way, when the above-mentioned clamp is clamped on the workpiece, the shell cover to be clamped is placed on the clamping station, and the support surface of the positioning support structure on the clamp device is supported on the lower surface of the first boss of the shell cover, and the locating shaft of the positioning support structure is inserted into the boss hole on the first boss to position the shell cover. Again, the abutting surface of the abutting structure on the clamp device is abutted and supported on the lower surface of the support boss; finally, the four compression ends of the compression structure are respectively pressed on both ends of the shell cover, and each provides downward compression force, completing clamping. The above-mentioned clamp device is simple in design, can better position and support the shell cover, and the entire shell cover is more evenly stressed during clamping, and clamping is stable.
[0008] As an optimization, the clamping station includes a first clamping station arranged at one end above the base, and the first clamping station is used to place a four-cylinder mechanical pump shell cover; the clamping station includes a second clamping station arranged at the other end above the base, and the first clamping station is used to place a six-cylinder mechanical pump shell cover.
[0009] In this way, by arranging the first clamping station and the second clamping station, and allowing the first clamping station and the second clamping station to respectively place the four-cylinder mechanical pump shell cover and the six-cylinder mechanical pump shell cover, the same clamp device can accommodate shell covers of different sizes for clamping, and the layout is more reasonable and has better adaptability.
[0010] As an optimization, the base includes a first mounting plate at the upper end and arranged horizontally, and the first mounting plate forms the first clamping station above; the base further includes a second mounting plate at the upper end and arranged horizontally, and the second mounting plate forms the second clamping station above.
[0011] In this way, the structure of the base is more simple and reasonable, and by arranging the first mounting plate and the second mounting plate, the part for clamping the four-cylinder mechanical pump shell cover and the part for clamping the six-cylinder mechanical pump shell cover can be respectively formed into a module, which is more convenient to use.
[0012] As an optimization, the base further comprises a bottom plate at the lower end, the middle of the bottom plate is upwardly protruding to form a rectangular plate-shaped support plate body, the first mounting plate and the second mounting plate are arranged on the upper surface of the support plate body.
[0013] In this way, the structure of the bottom plate is more simple and reasonable.
[0014] Further, the mounting plate is detachably connected to the bottom plate by connecting screws.
[0015] Further, a plurality of through holes are arranged at both ends of the bottom plate body for arranging bolts and connecting to the machine tool workbench.
[0016] As an optimization, the pressing structure comprises a first pressing cylinder arranged on the clamping station and spaced apart from one end of the shell cover to be clamped, and a second pressing cylinder arranged on the clamping station and spaced apart from the other end of the shell cover to be clamped; a first pressing block rod and a second pressing block rod are respectively arranged at the ends of the piston rods of the first pressing cylinder and the second pressing cylinder, and the distal ends of the first pressing block rod and the second pressing block rod are respectively supported on the edge positions of the two ends of the shell cover to be clamped; a hinge block is arranged on the inner side of the upper end of the cylinder body of the first pressing cylinder and the second pressing cylinder, a hinge shaft is arranged on the hinge block, and a pair of vertically arranged hinge blocks are respectively arranged at the two ends of the hinge shaft, and the two groups of hinge blocks are respectively connected to the first pressing block rod and the second pressing block rod through the hinge shaft.
[0017] In this way, the pressing structure adopts four cylinders, and the overall structure design is more simple and reasonable. When pressing, the piston rods of the cylinders move upward, so that the first pressing block rod and the second pressing block rod form a lever structure, which can better provide pressing force.
[0018] Further, four vertically arranged screw holes are arranged at the upper end of the cylinder body of the first pressing cylinder and the second pressing cylinder for arranging connecting screws, and the lower ends of the connecting screws are respectively threadedly connected to the base.
[0019] Further, a rectangular mounting port is arranged on the base and corresponds to the lower ends of the first pressing cylinder and the second pressing cylinder.
[0020] As an optimization, the positioning and supporting structure comprises a positioning and supporting block arranged on the base, the upper end face of the positioning and supporting block forms the supporting face, and a positioning shaft is arranged on the upper end face of the positioning and supporting block.
[0021] In this way, the positioning and supporting structure design is more simple and reasonable, and can better form support and positioning.
[0022] Further, the positioning and supporting block is detachably connected to the base by screws.
[0023] Furthermore, the positioning support block includes a central frustum section, an integrally formed truncated cone section at the upper end of the frustum section, a positioning shaft hole and a positioning shaft on the upper surface of the truncated cone section; and a positioning boss protrudes downward at the middle of the lower end surface of the frustum section, so that the positioning boss extends into and fits into a blind hole on the upper surface of the base.
[0024] As an optimization, the abutting structure includes an abutting block disposed on the base, with the upper end surface of the abutting block forming the abutting surface.
[0025] This makes the design of the abutment structure simpler and more reasonable.
[0026] Furthermore, each end of the abutment block is detachably fixed to the base by screws, and the position between the two screws on the abutment block protrudes upward to form a protrusion, the upper end surface of the protrusion forming the abutment surface.
[0027] In summary, the above-mentioned clamping device has the characteristics of simpler and more reasonable structural design, better compatibility with clamping workpieces of different sizes, more convenient operation and use, and reliable clamping. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of a four-cylinder mechanical pump housing cover.
[0029] Figure 2 yes Figure 1 A schematic diagram of the structure after rotation by one angle.
[0030] Figure 3 This is a schematic diagram of the structure of a six-cylinder mechanical pump housing cover.
[0031] Figure 4 yes Figure 3 A schematic diagram of the structure after rotation by one angle.
[0032] Figure 5 This is a schematic diagram of the quick-change fixture for the mechanical pump in a specific embodiment of this utility model.
[0033] Figure 6 yes Figure 5 The above is a structural diagram after omitting the mechanical pump housing cover of four cylinders.
[0034] Figure 7 yes Figure 6 A magnified view of position A in the diagram.
[0035] Figure 8 yes Figure 5 A schematic diagram of the structure after rotation by one angle.
[0036] Figure 9 yes Figure 8The structure diagram of the mechanical pump shell cover after removing four cylinders.
[0037] Figure 10 is Figure 9 The local enlarged diagram of the B position in the shell cover. DETAILED DESCRIPTION
[0038] The utility model will be further described below in combination with the drawings and examples, and it should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular way, and therefore cannot be understood as limiting the utility model. The terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0039] As Figures 1 to 10 The utility model discloses a kind of mechanical pump quick changeover fixture, including base 11, clamping station is formed on the upper surface of base and is used to place the shell cover 12 to be clamped;Positioning support structure is provided with on the base and corresponding the first boss that shell cover lower side surface has, positioning support structure has the support surface 13 that is pasted on the lower surface of first boss supports, positioning support structure also has the positioning shaft 14 that is inserted into boss hole;Resistant structure is provided with on the base and corresponding the support boss that shell cover lower side surface has, resistant structure has the resistant surface 15 that is supported on the lower surface of support boss;Compression structure is also provided on clamping station, and compression structure has four compression ends and can be respectively paired and is compressed in the both ends of shell cover, and each provides downward compression force.
[0040] In this way, the above-mentioned clamp is clamped when the workpiece is clamped, the shell cover to be clamped is placed on the clamping station, and the support surface of the positioning support structure on the clamp device is pasted and supported on the lower surface of the first boss of the shell cover, the positioning shaft of the positioning support structure is inserted into the boss hole on the first boss and the shell cover is positioned. Again, the abutting surface of the abutting structure on the clamp device is abutted and supported on the lower surface of the support boss; Finally, the four compression ends of the compression structure are respectively compressed on both ends of the shell cover, and each provides downward compression force, and clamping is completed. The above-mentioned clamp device is simple in design, can better position and support the shell cover, and the entire shell cover is more uniform in stress when clamped, and clamping is stable.
[0041] In the embodiment, the clamping station includes a first clamping station 16 arranged at one end of the base, and the first clamping station is used for placing a four-cylinder mechanical pump shell cover; the clamping station includes a second clamping station 17 arranged at the other end of the base, and the first clamping station is used for placing a six-cylinder mechanical pump shell cover.
[0042] In this way, by arranging the first clamping station and the second clamping station, and making the first clamping station and the second clamping station respectively correspond to the four-cylinder mechanical pump shell cover and the six-cylinder mechanical pump shell cover, different sizes of shell covers can be clamped on the same fixture device, the layout is more reasonable, and the adaptability is better.
[0043] In the embodiment, the base includes a first mounting plate 18 arranged at the upper end and horizontally, and the first mounting plate forms the first clamping station above; the base further includes a second mounting plate 19 arranged at the upper end and horizontally, and the second mounting plate forms the second clamping station above.
[0044] In this way, the structural design of the base is more simple and reasonable, and by arranging the first mounting plate and the second mounting plate, the part for clamping the four-cylinder mechanical pump shell cover and the part for clamping the six-cylinder mechanical pump shell cover can be respectively formed into a module, and the use is more convenient.
[0045] In the embodiment, the base further includes a bottom plate 20 at the lower end, a support plate body 21 in a rectangular plate structure is formed by protruding upward in the middle of the bottom plate, and the first mounting plate and the second mounting plate are arranged on the upper surface of the support plate body.
[0046] In this way, the structural design of the bottom plate is more simple and reasonable.
[0047] Further, the mounting plate is detachably connected to the bottom plate by a connecting screw.
[0048] Further, a plurality of through holes are arranged at both ends of the bottom plate body for arranging bolts and connecting with a machine tool workbench.
[0049] In the specific embodiment, the pressing structure comprises a first pressing cylinder 22 arranged on the clamping station and corresponding to one end of the shell cover to be clamped, and a second pressing cylinder 23 arranged on the clamping station and corresponding to the other end of the shell cover to be clamped; a first pressing block rod 24 and a second pressing block rod 25 are respectively arranged in a horizontal manner on the piston rod end of the first pressing cylinder and the second pressing cylinder, and the distal ends of the first pressing block rod and the second pressing block rod are respectively supported on the edge positions of the two ends of the shell cover to be clamped; a hinge block 26 is arranged on the inner side of the upper end of the cylinder body of the first pressing cylinder and the second pressing cylinder, a hinge shaft is arranged on the hinge block, and a vertical hinge block 27 is arranged on both ends of the hinge shaft.
[0050] In this way, the pressing structure adopts four cylinders, and the overall structure design is more simple and reasonable. When pressing, the piston rod of the cylinder moves upward, so that the first pressing block rod and the second pressing block rod form a lever structure, which can better provide the pressing force.
[0051] Further, four vertical screw holes are arranged on the upper end of the cylinder body of the first pressing cylinder and the second pressing cylinder, and are used to arrange connecting screws, and the lower ends of the connecting screws are respectively arranged in threaded connection on the base.
[0052] Further, a rectangular mounting hole is arranged on the base and corresponds to the lower end of the first pressing cylinder and the second pressing cylinder.
[0053] In the specific embodiment, the positioning and supporting structure comprises a positioning and supporting block 28 arranged on the base, and the upper end surface of the positioning and supporting block forms the supporting surface. A positioning shaft is arranged on the upper end surface of the positioning and supporting block.
[0054] In this way, the positioning and supporting structure is designed to be more simple and reasonable, and can better form the support and positioning.
[0055] Further, the positioning and supporting block is detachably connected and fixed on the base by screws.
[0056] Further, the positioning and supporting block comprises a middle circular truncated cone section 29, a conical frustum section 30 is integrally formed on the upper end of the circular truncated cone section, a positioning shaft hole is arranged on the upper end surface of the conical frustum section, and a positioning shaft is arranged in the positioning shaft hole; and a positioning boss is formed on the lower end surface of the circular truncated cone section, and the positioning boss is correspondingly inserted into a blind hole on the upper end surface of the base.
[0057] In the specific embodiment, the abutting structure comprises an abutting block 31 arranged on the base, and the upper end surface of the abutting block forms the abutting surface.
[0058] In this way, the abutting structure is designed to be more simple and reasonable.
[0059] Further, the abutting blocks are respectively fixed on the base by screws, and the positions between the two screws on the abutting block are protruded upward to form protrusions 32, and the upper end surfaces of the protrusions form the abutting surfaces.
[0060] To sum up, the clamp device has the characteristics of simple and reasonable structure design, better compatibility with workpieces of different sizes, more convenient operation and reliable clamping.
[0061] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the existing technology according to the concept of the present application shall be within the protection scope defined by the claims.
Claims
1. A quick change fixture for mechanical pump, comprising a base, a clamping station is formed on the upper surface of the base and used for placing a shell cover to be clamped; characterized in that; The first boss corresponding to the lower side surface of the shell cover is provided with a positioning support structure having a support surface abuttingly supported on the lower surface of the first boss, and the positioning support structure further has a positioning shaft extending into the boss hole.
2. A mechanical pump quick change fixture as claimed in claim 1, wherein; The clamping station includes a first clamping station arranged at one end above the base and used for placing a four-cylinder mechanical pump shell cover, and the clamping station includes a second clamping station arranged at the other end above the base and used for placing a six-cylinder mechanical pump shell cover.
3. A mechanical pump quick change fixture as claimed in claim 2, wherein; The base includes a first mounting plate arranged horizontally at the upper end, and the first clamping station is formed above the first mounting plate; the base further includes a second mounting plate arranged horizontally at the upper end, and the second clamping station is formed above the second mounting plate.
4. A mechanical pump quick change fixture as claimed in claim 3, wherein; The base further includes a bottom plate at the lower end, and a support plate body in the form of a rectangular plate structure is formed by the upward protrusion of the middle part of the bottom plate, and the first mounting plate and the second mounting plate are arranged and installed on the upper surface of the support plate body.
5. A mechanical pump quick change fixture as claimed in claim 1, wherein; The pressing structure includes a first pressing cylinder arranged on the clamping station and spaced apart from one end of the shell cover to be clamped, and a second pressing cylinder arranged on the clamping station and spaced apart from the other end of the shell cover to be clamped; a first pressing block rod and a second pressing block rod arranged horizontally are respectively hinged to the piston rod ends of the first pressing cylinder and the second pressing cylinder, and the distal ends of the first pressing block rod and the second pressing block rod are respectively abuttingly supported on the edge positions of the two ends of the shell cover to be clamped; a hinge block is arranged on the upper end of the cylinder body of the first pressing cylinder and the second pressing cylinder, and a hinge shaft is arranged on the hinge block, and two vertical hinge blocks are respectively hinged to the two ends of the hinge shaft, and the two groups of hinge blocks are respectively hinged to the first pressing block rod and the second pressing block rod through the hinge shaft.
6. A mechanical pump quick change fixture as claimed in claim 1, wherein; The positioning support structure includes a positioning support block arranged on the base, and the upper end surface of the positioning support block forms the support surface, and the positioning shaft is arranged on the upper end surface of the positioning support block.
7. A mechanical pump quick change fixture as claimed in claim 1, wherein; The abutting structure includes an abutting block arranged on the base, and the upper end surface of the abutting block forms the abutting surface.