Special machining equipment for precise machining of eccentric overflowing hole of pump head of metering pump

Abstract

The utility model provides special machining equipment for precise machining of an eccentric overflowing hole of a pump head of a metering pump, which comprises a main body connected with a main bearing seat of a lathe, the main body is slidably connected with a positioning block used for abutting against the outer wall of the pump head of the metering pump, the positioning block is provided with a clamping groove, and the clamping groove is connected with the main bearing seat of the lathe. The clamping groove corresponds to the pump head of the metering pump, the two positioning blocks are distributed in the radial direction of the main body, the main body is rotationally connected with a driving part, the driving part rotates and enables the two positioning blocks to move in the direction close to or away from the pump head of the metering pump through a conduction assembly, and the purpose of conveniently machining the pump head of the metering pump is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, in particular, relate to a kind of special machining equipment for accurate machining of eccentric overflow hole of metering pump pump head. BACKGROUND

[0002] At present, the Chinese patent with the authorization announcement No.CN221715660U discloses a finish turning clamp used on numerical control lathe, comprising a plurality of clamping jaws slidably arranged on a three-jaw chuck, a detachable arc-shaped jaw is arranged on the clamping jaw, a clamping surface is arranged on the arc-shaped jaw, a plurality of outwardly protruding elastic convex surfaces are uniformly arranged on the end surface of the clamping surface along the linear direction, a plurality of elastic rubber strips are arranged on the elastic convex surfaces, an auxiliary clamping assembly is arranged on one side of the elastic convex surfaces in the arc-shaped jaw, and an adjustable height supporting plate is arranged on the arc surface of the clamping surface.

[0003] Through the design of the detachable arc-shaped jaw, the elastic convex surface and the auxiliary clamping assembly, the clamp can be quickly replaced to cooperate with the machining of various workpieces, and at the same time, it can provide local fixed-point pressure while wrapping the workpiece, thereby effectively improving the clamping stability and enabling the clamp to clamp and process large workpieces.

[0004] Figure 1 The structure diagram of the metering pump pump head 1 needs to punch the overflow hole 11 on the outer wall of the metering pump pump head 1, that is, after the metering pump pump head 1 is vertically fixed, the overflow hole 11 is drilled on the metering pump pump head 1 by the horizontally arranged drill bit. Obviously, this finish turning clamp cannot be adapted. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a special machining equipment for accurate machining of eccentric overflow hole of metering pump pump head, so as to conveniently drill the metering pump pump head.

[0006] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a special machining equipment for accurate machining of eccentric overflow hole of metering pump pump head, comprising a main body connected with the main bearing seat of a lathe, a positioning block for abutting against the outer wall of the metering pump pump head is slidably connected to the main body, a clamping groove is formed in the positioning block, the clamping groove corresponds to the metering pump pump head, two positioning blocks are distributed along the radial direction of the main body, a driving member is rotatably connected to the main body, and the driving member rotates and moves the two positioning blocks towards or away from the metering pump pump head through a transmission assembly.

[0007] The technical scheme realizes that the metering pump head is vertically arranged between the two positioning blocks, the driving member rotates, the two positioning blocks are moved to the direction of approaching each other through the transmission assembly, the positioning blocks abut against the outer wall of the metering pump head, and the metering pump head cannot be moved due to the arrangement of the clamping groove, so that the process of drilling the flow hole in the metering pump head by the drill bit is more accurate.

[0008] As a preferred scheme of the utility model, the transmission assembly comprises a gear, a driving disc, a gear ring, a spiral strip and a connecting block, the gear is fixed on the driving member and coaxially arranged with the driving member, the driving disc is rotationally connected to the main body, the gear ring is fixed on the driving disc and coaxially arranged with the driving disc, the spiral strip is fixed on the side of the driving disc opposite to the gear ring, and the connecting block is fixed on the positioning block and engaged with the spiral strip.

[0009] The technical scheme realizes that the driving member drives the gear to rotate, the gear drives the driving disc to rotate through the gear ring, the spiral strip rotates along the axis of the driving disc, the connecting block moves along the radial direction of the main body, and the positioning block moves synchronously with the connecting block, so that the positioning block clamps or separates from the metering pump head, and the positioning of the positioning block is realized through the friction between the spiral strip and the connecting block.

[0010] As a preferred scheme of the utility model, the positioning block comprises a fixed block and a clamping block, the fixed block is fixedly connected with the connecting block, the clamping block is fixed on the fixed block and used for abutting against the outer wall of the metering pump head, and the clamping groove is arranged on the side of the clamping block facing the metering pump head.

[0011] The technical scheme realizes that the fixed block moves synchronously with the connecting block, and the clamping block moves synchronously with the fixed block to abut against the metering pump head.

[0012] As a preferred scheme of the utility model, the clamping block and the fixed block are fixedly connected with a reinforcing block, and the reinforcing block, the clamping block and the fixed block form a triangular structure.

[0013] The technical scheme realizes that, after the clamping block abuts against the metering pump head, the metering pump head generates a reaction force on the clamping block, the structure strength of the clamping block is improved through the arrangement of the reinforcing block, and the clamping block is not prone to breaking.

[0014] As a preferred scheme of the utility model, the clamping block is connected with a limiting piece, and the limiting piece is used for abutting against the upper surface of the metering pump head.

[0015] The technical scheme realizes that the upper surface of the metering pump head abuts against the limiting piece, so that the height position of the metering pump head can be determined, the process of adjusting the height position of the metering pump head by workers each time is omitted, and the production efficiency is greatly improved.

[0016] As a preferred form of the utility model, the clamping block is connected with a fixed plate, the limiting piece is threadedly connected to the fixed plate, a limiting sleeve is threadedly connected to the limiting piece, and the limiting sleeve is abutted against the fixed plate.

[0017] The above technical solution threadedly connects the limiting piece to the fixed plate, positions the limiting piece on the fixed plate through the self-locking property of the thread, and enables the limiting piece to move along the axial direction of the limiting piece, thereby adapting to different production requirements and improving the practicality.

[0018] As a preferred form of the utility model, the clamping block is connected with a fixed plate, the limiting piece is threadedly connected to the fixed plate, a limiting sleeve is threadedly connected to the limiting piece, and the limiting sleeve is abutted against the fixed plate.

[0019] The above technical solution threadedly connects the limiting piece to the fixed plate, positions the limiting piece on the fixed plate through the self-locking property of the thread, and enables the limiting piece to move along the axial direction of the limiting piece, thereby adapting to different production requirements and improving the practicality.

[0020] As a preferred form of the utility model, the clamping block is connected with a fixed plate, the limiting piece is threadedly connected to the fixed plate, a limiting sleeve is threadedly connected to the limiting piece, and the limiting sleeve is abutted against the fixed plate.

[0021] The above technical solution threadedly connects the limiting piece to the fixed plate, positions the limiting piece on the fixed plate through the self-locking property of the thread, and enables the limiting piece to move along the axial direction of the limiting piece, thereby adapting to different production requirements and improving the practicality. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure of the metering pump head is shown;

[0023] Figure 2 The external structure of the utility model is shown;

[0024] Figure 3 The structure of the metering pump head is shown;

[0025] Figure 4A schematic view of the position of the gear ring is shown.

[0026] Figure 5 A schematic view of the structure of the mounting hole is shown.

[0027] Figure 6 A schematic view of the structure of the fixing bolt is shown.

[0028] Figure 7 A schematic view of the structure of the positioning column is shown.

[0029] The reference signs: 1, metering pump head; 11, overflow hole; 2, main body; 21, guide groove; 22, driving piece; 3, transmission assembly; 31, gear; 32, driving disc; 33, gear ring; 34, spiral strip; 35, connecting block; 4, positioning block; 41, fixed block; 42, clamping block; 43, clamping groove; 44, reinforcing block; 5, limiting piece; 51, limiting sleeve; 6, fixed plate; 61, adjusting hole; 71, positioning hole; 72, positioning bolt; 81, mounting hole; 82, sliding hole; 91, fixing bolt; 92, elastic piece; 93, positioning column; 94, arc-shaped groove. DETAILED DESCRIPTION

[0030] The specific embodiments of the utility model are further described in detail below in combination with the drawings, so that the technical scheme of the utility model is easier to understand and master.

[0031] A kind of metering pump head eccentric overflow hole precision machining special machining equipment, including the main body 2 for being connected with the main bearing seat of lathe, main body 2 is cylindrical as a whole.There is guide groove 21 in main body 2, the length direction of guide groove 21 is along the radial direction of main body 2 setting.In guide groove 21 slidingly connected with the positioning block 4 for being abutting with the outer wall of metering pump head 1, two positioning blocks 4 are along the radial distribution of main body 2;Positioning block 4 is opened in clamping groove 43, and the section of clamping groove 43 is triangle.Clamping groove 43 corresponds with metering pump head 1.

[0032] Driving piece 22 is rotatably connected on main body 2, driving piece 22 rotates and moves two positioning blocks 4 to the direction close to or away from metering pump head 1 by transmission assembly 3.

[0033] The transmission assembly 3 comprises a gear 31, a driving disc 32, a gear ring 33, a spiral strip 34 and a connecting block 35. The gear 31 is fixed on the driving member 22 and coaxially arranged with the driving member 22. The driving disc 32 is rotationally connected to the main body 2 and coaxially arranged with the main body 2. The gear ring 33 is fixed on the driving disc 32 and coaxially arranged with the driving disc 32. The gear ring 33 is engaged with the gear 31. The spiral strip 34 is fixed on the side of the driving disc 32 away from the gear ring 33 and coaxially arranged with the driving disc 32. The connecting block 35 is fixed on the positioning block 4 and engaged with the spiral strip 34. The connecting block 35 and the positioning block 4 are slidingly connected in the guide slot 21.

[0034] The positioning block 4 comprises a fixed block 41 and a clamping block 42. The fixed block 41 is fixedly connected with the connecting block 35. The clamping block 42 is fixed on the fixed block 41 and used to abut against the outer wall of the metering pump head 1. The clamping block 42 and the fixed block 41 form an L-shaped structure. A clamping slot 43 is formed on the side of the clamping block 42 facing the metering pump head 1.

[0035] An inclined reinforcing block 44 is fixedly connected between the clamping block 42 and the fixed block 41, forming a triangular structure among the reinforcing block 44, the clamping block 42 and the fixed block 41.

[0036] A limiting piece 5 is arranged on the clamping block 42 and used to abut against the upper surface of the metering pump head 1 to limit the height position of the metering pump head 1.

[0037] A fixed plate 6 is arranged on the upper surface of the clamping block 42. The limiting piece 5 is threadedly connected to the fixed plate 6. A limiting sleeve 51 is threadedly connected to the limiting piece 5 and abuts against the fixed plate 6 to fix the limiting piece 5.

[0038] A positioning hole 71 is formed on the clamping block 42. A plurality of adjusting holes 61 are formed along the length direction of the fixed plate 6. The distance between two adjacent adjusting holes 61 is equal. The diameter of the adjusting hole 61 is equal to the diameter of the positioning hole 71.

[0039] A positioning bolt 72 is arranged on the adjusting hole 61 and threadedly connected with the positioning hole 71 and abuts against the fixed plate 6.

[0040] An installation hole 81 with a circular cross section is formed on the inner wall of the clamping slot 43. A sliding hole 82 is formed between the installation hole 81 and the positioning hole 71. The cross section of the sliding hole 82 is square. The cross sectional area of the sliding hole 82 is smaller than that of the installation hole 81. A fixing bolt 91 is threadedly connected to the installation hole 81. An elastic piece 92, which is a spring, is arranged in the installation hole 81.

[0041] A positioning pin 93 is slidably connected within the sliding hole 82. One end of the elastic element 92 abuts against the fixing bolt 91, and the other end of the elastic element 92 abuts against the positioning pin 93. An arc-shaped groove 94 is formed at the end of the positioning pin 93 away from the elastic element 92, and the arc-shaped groove 94 abuts against the outer wall of the positioning bolt 72. When the fixing bolt 91 is tightened, the elastic element 92 applies elastic force to the positioning pin 93, and the arc-shaped groove 94 on the positioning pin 93 abuts against the outer wall of the positioning bolt 72, making it difficult for the positioning bolt 72 to separate from the fixing plate 6.

[0042] In use, separate the limiting sleeve 51 from the fixing plate 6, rotate the limiting member 5 to adjust the height of the lower surface of the limiting member 5, and then rotate the limiting sleeve 51 to make it abut against the fixing plate 6, thus fixing the limiting member 5. Then, place the metering pump head 1 between the two clamping blocks 42, and make the upper surface of the metering pump head 1 abut against the lower surface of the limiting member 5. Rotate the drive member 22, and the two clamping blocks 42 move synchronously towards each other, fixing the metering pump head 1 between the two clamping slots 43, so that the metering pump head 1 is in a vertical position. Then, rotate the drill bit and move the drill bit horizontally to accurately drill the flow hole 11 on the metering pump head 1.

[0043] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A special machining equipment for precision machining of eccentric overflow hole of metering pump head, comprising a main body (2) for connecting with the main bearing seat of a lathe, characterized in that: The main body (2) is slidably connected with positioning blocks (4) for abutting against the outer wall of the pump head (1) of the metering pump, the positioning blocks (4) are provided with clamping grooves (43) corresponding to the pump head (1) of the metering pump, the two positioning blocks (4) are distributed along the radial direction of the main body (2), and the main body (2) is rotationally connected with a driving member (22), the driving member (22) rotates and moves the two positioning blocks (4) towards or away from the pump head (1) of the metering pump through a transmission assembly (3).

2. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 1, characterized in that: The transmission assembly (3) comprises a gear (31), a driving disc (32), a gear ring (33), a spiral strip (34) and a connecting block (35), the gear (31) is fixed on the driving member (22) and coaxially arranged with the driving member (22), the driving disc (32) is rotationally connected to the main body (2), the gear ring (33) is fixed on the driving disc (32) and coaxially arranged with the driving disc (32), the gear ring (33) is engaged with the gear (31), the spiral strip (34) is fixed on the side of the driving disc (32) away from the gear ring (33), and the connecting block (35) is fixed on the positioning block (4) and engaged with the spiral strip (34).

3. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 2, characterized in that: The positioning block (4) comprises a fixed block (41) and a clamping block (42), the fixed block (41) is fixedly connected with the connecting block (35), and the clamping block (42) is fixed on the fixed block (41) and used for abutting against the outer wall of the pump head (1) of the metering pump, the clamping groove (43) is arranged on the side of the clamping block (42) facing the pump head (1) of the metering pump.

4. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 3, characterized in that: The clamping block (42) and the fixed block (41) are fixedly connected with a reinforcing block (44), and the reinforcing block (44), the clamping block (42) and the fixed block (41) form a triangular structure.

5. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 3 or 4, characterized in that: The clamping block (42) is connected with a limiting piece (5), and the limiting piece (5) is used for abutting against the upper surface of the pump head (1) of the metering pump.

6. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 5, characterized in that: The clamping block (42) is connected with a fixed plate (6), the limiting piece (5) is threadedly connected to the fixed plate (6), a limiting sleeve (51) is threadedly connected to the limiting piece (5), and the limiting sleeve (51) abuts against the fixed plate (6).

7. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 6, characterized in that: The clamping block (42) is provided with a positioning hole (71), a plurality of adjusting holes (61) are arranged along the length direction of the fixed plate (6), a positioning bolt (72) is arranged in the adjusting hole (61), and the positioning bolt (72) is threadedly connected with the positioning hole (71) and abuts against the fixed plate (6).

8. The precision machining equipment for eccentric overflow hole of metering pump head according to claim 7, characterized in that: The inner wall of the clamping groove (43) is provided with a mounting hole (81), the mounting hole (81) and the positioning hole (71) are communicated through a sliding hole (82), the mounting hole (81) is threadedly connected with a fixing bolt (91), the mounting hole (81) is provided with an elastic member (92), the sliding hole (82) is slidably connected with a positioning column (93), one end of the elastic member (92) abuts against the fixing bolt (91), the other end of the elastic member (92) abuts against the positioning column (93), and the end, away from the elastic member (92), of the positioning column (93) is provided with an arc-shaped recess (94), and the arc-shaped recess (94) abuts against the outer wall of the positioning bolt (72).

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