A kind of tolerance compensation device for water pump water section turning

Abstract

The utility model discloses a kind of for water pump water section turning processing's tolerance compensation device, it is related to water pump processing field, including base, front end face left and right sides of base symmetrically are opened front mortise, rear end face left and right sides symmetrically are opened rear mortise, front mortise is communicated with rear mortise by connecting hole, and symmetrically opened adjusting hole is opened in the upper end face left and right sides of base, and with connecting hole corresponding through-penetration;Screw stopper, embedded installation is on front mortise;Screw limiting ring, embedded installation is on rear mortise;Rotary screw, it is worn between screw stopper and screw limiting ring;Taper block, it is relatively slidably installed on rotary screw;Left side adjusting block and right side adjusting block, both are by adjusting boss and extend into corresponding adjusting hole, so that the bottom of adjusting boss and taper block top are in abutment;And upper fixture, for cooperating base and water pump water section press-pack positioning.The utility model improves the machining precision of water pump water section part, improves water pump performance, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of water pump processing, and specifically to a tolerance compensation device for turning water pump sections. Background Technology

[0002] Water pumps are machines that transport or pressurize liquids, and their stability and reliability are crucial to liquid transmission systems. To ensure the normal operation of water pumps in practical applications, the machining of their components is also critical. However, the machining accuracy of these components is affected by many factors, such as machine tool precision, operator skill level, machine tool fixtures, and the precision of the part blank. Typically, water pump (inlet and outlet) components are formed using casting processes and then machined to the required dimensions. However, casting processes have large tolerances, requiring specialized fixtures for machining. Existing fixtures cannot compensate for the large differences in the dimensional tolerances of the water section blanks, resulting in discrepancies between the machined part dimensions and the drawing requirements. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a tolerance compensation device for turning water pump sections, thereby improving the machining accuracy of water pump section parts, improving water pump performance, and reducing production costs.

[0004] The objective of this utility model is achieved through the following technical solution: This tolerance compensation device for turning water sections of a water pump includes:

[0005] The base has symmetrical countersunk holes on the left and right sides of the front end face and symmetrical countersunk holes on the left and right sides of the rear end face. The front and rear countersunk holes are connected by connecting holes. The upper end face of the base has symmetrical adjustment holes on the left and right sides, which are connected to the connecting holes.

[0006] The screw stop is embedded in the front countersunk hole;

[0007] The screw limiting ring is embedded in the countersunk hole.

[0008] A rotating screw is inserted between a screw stop and a screw limiting ring;

[0009] The tapered block is inserted into the connecting hole and is relatively slidably mounted on the rotating screw via a threaded connection;

[0010] The left and right adjusting blocks are symmetrical in structure, and both extend into corresponding adjusting holes via adjusting bosses, so that the bottom of the adjusting boss abuts against the top of the tapered block; and

[0011] The upper clamp is located directly above the base and is used to press and position the water pump section in conjunction with the base.

[0012] When the left and / or right rotating screws are rotated, the left and / or right adjusting blocks move up and down to adjust the height.

[0013] As a further technical solution, the bottom of the base is provided with a connecting post for mounting on the machine tool chuck; several screw holes are opened on the surface of the front countersunk hole and the rear countersunk hole for threaded connection of the screw stop block and the screw limit ring.

[0014] As a further technical solution, a groove is provided on the inner wall of the connecting hole to cooperate with the boss set at the bottom of the tapered block. When the tapered block slides relative to the rotating screw, it is guided by the groove. An arc groove is provided on the top of the tapered block, and the arc groove abuts against the spherical surface set at the bottom of the adjusting boss.

[0015] As a further technical solution, pin holes are opened on both sides of the base, and the pin holes are connected to the corresponding adjustment holes for installing limit pins, and the limit pins are inserted into the limit grooves opened on the adjustment boss.

[0016] As a further technical solution, a positioning groove for the lower water section housing is opened in the middle of the base, which is used to cooperate with the positioning groove for the upper water section housing opened in the middle of the upper clamp, thereby positioning the water section housing on the water pump section.

[0017] As a further technical solution, a contour hole is opened on the surface of the screw stop block on the side of the countersunk hole, and the contour hole matches the outline of the front part of the tapered block; a front center hole is opened in the center of the screw stop block to expose the front end of the rotating screw; a rear center hole is opened in the center of the screw limiting ring to expose the rear end of the rotating screw.

[0018] As a further technical solution, an internal hexagonal hole is opened at the end of the rotating screw, and the rotating screw is engaged with the threaded hole at the center of the tapered block through the external thread.

[0019] As a further technical solution, a positioning groove for the water section pipe is opened on both the left and right adjustment blocks to cooperate with the positioning grooves on the water section pipe on the left and right sides of the upper clamp, thereby positioning the water section pipe on the water pump section.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. The structure is reasonably designed and easy to operate, and the height of the fixture can be quickly adjusted to accommodate the dimensional errors of different batches of parts;

[0022] 2. Improve turning precision, increase production efficiency, reduce blank scrap rate, and save production costs;

[0023] 3. By adjusting the rotating screw on one or both sides, the shape tolerance of the water section blank can be compensated individually or simultaneously, ensuring that the dimensions of the parts after turning meet the drawing requirements;

[0024] 4. A positioning groove for the water section shell and a positioning groove for the water section pipe are set between the upper fixture and the base, which can accurately position the water pump section and prevent shaking during turning. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the base structure in this utility model. Figure 1 .

[0028] Figure 4 This is a schematic diagram of the base structure in this utility model. Figure 2 .

[0029] Figure 5 This is a schematic diagram of the screw stop block in this utility model.

[0030] Figure 6 This is a schematic diagram of the tapered block in this utility model.

[0031] Figure 7 This is a schematic diagram showing the range of height adjustment for the tapered block in this utility model.

[0032] Figure 8 This is a schematic diagram of the rotating screw in this utility model.

[0033] Figure 9 This is a schematic diagram of the screw limiting ring in this utility model.

[0034] Figure 10 This is a schematic diagram of the structure of the adjusting block in this utility model (taking the adjusting block on the right as an example).

[0035] Figure 11 This is a schematic diagram of the main structure of the present invention after assembly.

[0036] Figure 12 for Figure 11 AA sectional view.

[0037] Figure 13 This is a schematic diagram of the structure of this utility model when the height is adjusted.

[0038] Explanation of reference numerals in the attached drawings: Base 1-1, Connecting column 1-2, Front countersunk hole 1-3, Slide groove 1-4, Adjusting hole 1-5, Rear countersunk hole 1-6, Connecting hole 1-7, Lower positioning groove of water section housing 1-8, Pin hole 1-9, Screw stop block 2-1, Contour hole 2-2, Front center hole 2-3, Taper block 3-1, Threaded hole 3-2, Boss 3-3, Arc groove 3-4, Rotating screw 4-1, Internal hexagon hole 4-2, External thread 4-3, Screw limit ring 5-1, Rear center hole 5-2, Left adjustment block 6-1, Right adjustment block 7-1, Upper clamp 8-1, Upper positioning groove of water section housing 8-2, Upper positioning groove of water section pipe 8-3, Adjusting boss 9, Lower positioning groove of water section pipe 10, Limiting groove 11. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings:

[0040] Example: As attached Figures 1-13 As shown, this tolerance compensation device for turning the water section of a water pump includes a base 1-1, a connecting column 1-2, a front countersunk hole 1-3, a sliding groove 1-4, an adjusting hole 1-5, a rear countersunk hole 1-6, a connecting hole 1-7, a lower positioning groove 1-8 for the water section housing, a pin hole 1-9, a screw stop block 2-1, a contour hole 2-2, a front center hole 2-3, a taper block 3-1, a threaded hole 3-2, a boss 3-3, an arc groove 3-4, a rotating screw 4-1, an internal hexagonal hole 4-2, an external thread 4-3, a screw limiting ring 5-1, a rear center hole 5-2, a left adjusting block 6-1, a right adjusting block 7-1, an upper clamp 8-1, an upper positioning groove 8-2 for the water section housing, an upper positioning groove 8-3 for the water section pipeline, an adjusting boss 9, a lower positioning groove 10 for the water section pipeline, and a limiting groove 11.

[0041] Reference Appendix Figure 3 , 4 The base 1-1 primarily supports the installation of other components and the positioning of water section parts. A connecting post 1-2 is located at the bottom of the base 1-1, which is mounted on the machine tool chuck during actual use. Front countersunk holes 1-3 are symmetrically formed on the left and right sides of the front face of the base 1-1, into which the screw stop 2-1 is embedded. Rear countersunk holes 1-6 are symmetrically formed on the left and right sides of the rear face of the base 1-1, into which the screw limiting ring 5-1 is embedded. Preferably, several small threaded holes are formed on the surfaces of both the front countersunk holes 1-3 and the rear countersunk holes 1-6 to facilitate threaded connection of the screw stop 2-1 and the screw limiting ring 5-1. Furthermore, the front countersunk holes 1-3 and the rear countersunk holes 1-6 are connected by a connecting hole 1-7. Adjusting holes 1-5 are symmetrically formed on the left and right sides of the upper end face of the base 1-1, and the adjusting holes 1-5 communicate with the corresponding connecting holes 1-7.

[0042] like Figure 1 , 2As shown, there are two rotating screws 4-1, one on the left and one on the right, which are inserted between the screw stop 2-1 and the screw limiting ring 5-1. The tapered block 3-1 is inserted into the connecting hole 1-7 and is installed on the rotating screw 4-1 by a threaded connection. When the rotating screw 4-1 rotates, the tapered block 3-1 slides along the axial direction of the rotating screw 4-1.

[0043] Preferably, refer to the appendix Figure 5 , 6 9. A contour hole 2-2 is made on the surface of the screw stop 2-1 on the side where it is inserted into the countersunk hole 1-3. The contour hole 2-2 matches the contour of the front part of the tapered block 3-1, providing displacement space for the axial movement of the tapered block 3-1 inside the base 1-1. A front center hole 2-3 is made in the center of the screw stop 2-1 to expose the front end of the rotating screw 4-1; at the same time, a rear center hole 5-2 is made in the center of the screw limiting ring 5-1 to expose the rear end of the rotating screw 4-1.

[0044] like Figure 2 , 6 As shown in Figure 8, the end of the rotating screw 4-1 exposed above the screw stop 2-1 has an internal hexagonal hole 4-2, which can be adjusted using an internal hexagonal tool. The rotating screw 4-1 engages with the threaded hole 3-2 in the center of the tapered block 3-1 via an external thread 4-3.

[0045] Reference Appendix Figure 1 , 10 The left adjusting block 6-1 and the right adjusting block 7-1 adopt a symmetrical structure. Both are inserted into the corresponding adjusting holes 1-5 (on the base 1-1) via adjusting bosses 9, so that the bottom of the adjusting bosses 9 abuts against the top of the tapered block 3-1. Furthermore, as... Figure 3 , 6 As shown, a sliding groove 1-4 is formed on the inner wall of the connecting hole 1-7. The sliding groove 1-4 can cooperate with the boss 3-3 set at the bottom of the tapered block 3-1. When the tapered block 3-1 slides relative to the rotating screw 4-1, it is guided by the sliding groove 1-4. The sliding groove 1-4 also restricts the rotation of the tapered block 3-1 relative to the connecting hole 1-7. Furthermore, an arc groove 3-4 is set at the top of the tapered block 3-1, and the arc groove 3-4 abuts against the spherical surface set at the bottom of the adjusting boss 9. When the left and / or right rotating screw 4-1 is rotated, the left adjusting block 6-1 and / or the right adjusting block 7-1 move up and down to achieve height adjustment, such as... Figure 7 As shown, the height difference X of the taper block 3-1 is the height adjustment range of the adjusting block.

[0046] Preferably, such as Figure 4As shown, pin holes 1-9 are opened on both sides of the base 1-1. The pin holes 1-9 are connected to the corresponding adjustment holes 1-5. A limit pin is installed in the pin hole 1-9 and inserted into the limit groove 11 opened on the adjustment boss 9 to limit the axial movement of the adjustment block so that it will not come out of the base 1-1.

[0047] Reference Appendix Figure 1 , 2 The upper clamp 8-1 is positioned directly above the base 1-1, and it works with the base 1-1 to press-fit and position the water pump section. A lower positioning groove 1-8 for the water section housing is provided in the middle of the base 1-1, which cooperates with the upper positioning groove 8-2 for the water section housing in the middle of the upper clamp 8-1, thereby positioning the water section housing on the water pump section. Lower positioning grooves 10 for the water section pipe are provided on both the left adjusting block 6-1 and the right adjusting block 7-1, which cooperate with the upper positioning grooves 8-3 for the water section pipe on the left and right sides of the upper clamp 8-1, thereby positioning the water section pipe on the water pump section.

[0048] The working process of this utility model:

[0049] like Figure 13 As shown, when the rotating screw 4-1 rotates, the tapered block 3-1 moves along the axial direction of the rotating screw 4-1. At this time, the left adjustment block 6-1 and the right adjustment block 7-1 can be adjusted within the two height ranges of size X1 and X2, respectively.

[0050] When the left dimension X3 of the water pump section part blank exceeds the tolerance range, while the right dimension X4 meets the tolerance requirements, the deviation on both sides is the difference between X3 and X4. When the upper fixture 8-1 presses down to clamp the water pump section part, the center axis of the water pump section part blank is eccentric with the center axis of the fixture and the center axis of the machine tool spindle, and the error is large. At this time, the difference between X3 and X4 can be compensated by adjusting the height dimension X1 between the left adjusting block 6-1 and the base 1-1 and the height dimension X2 between the right adjusting block 7-1 and the base 1-1, respectively. This reduces the eccentricity between the center axis of the water pump section part blank and the center axis of the fixture and the center axis of the machine tool spindle, thereby improving the turning accuracy of the water pump section part.

[0051] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A tolerance compensation device for turning the water section of a water pump, characterized in that, include: The base (1-1) has symmetrically opened front countersunk holes (1-3) on the left and right sides of the front end face and rear countersunk holes (1-6) on the left and right sides of the rear end face. The front countersunk holes (1-3) and rear countersunk holes (1-6) are connected by a connecting hole (1-7). The upper end face of the base (1-1) has symmetrically opened adjustment holes (1-5) on the left and right sides, which are connected to the connecting holes (1-7). The screw stop (2-1) is embedded in the front countersunk hole (1-3); The screw limiting ring (5-1) is embedded in the countersunk hole (1-6); A rotating screw (4-1) is inserted between a screw stop (2-1) and a screw limiting ring (5-1); The tapered block (3-1) is inserted into the connecting hole (1-7) and is relatively slidably mounted on the rotating screw (4-1) by means of a threaded connection; The left adjustment block (6-1) and the right adjustment block (7-1) adopt a symmetrical structure, and both of them extend into the corresponding adjustment hole (1-5) through the adjustment boss (9), so that the bottom of the adjustment boss (9) abuts against the top of the tapered block (3-1); as well as The upper clamp (8-1) is set directly above the base (1-1) and is used to cooperate with the base (1-1) to press and position the water pump section. When the left and / or right rotating screws (4-1) are rotated, the left adjusting block (6-1) and / or the right adjusting block (7-1) move up and down to achieve height adjustment.

2. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: The base (1-1) has a connecting post (1-2) at the bottom for mounting on the machine tool chuck; the front countersunk hole (1-3) and the rear countersunk hole (1-6) have several screw holes for threaded connection of the screw stop (2-1) and the screw limit ring (5-1).

3. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: A groove (1-4) is provided on the inner wall of the connecting hole (1-7) to cooperate with the boss (3-3) at the bottom of the tapered block (3-1). When the tapered block (3-1) slides relative to the rotating screw (4-1), it is guided by the groove (1-4). A circular arc groove (3-4) is provided on the top of the tapered block (3-1), and the circular arc groove (3-4) abuts against the spherical surface at the bottom of the adjusting boss (9).

4. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: Pin holes (1-9) are provided on both sides of the base (1-1). The pin holes (1-9) are connected to the corresponding adjustment holes (1-5) for installing limit pins and inserting the limit pins into the limit grooves (11) provided on the adjustment boss (9).

5. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: The base (1-1) has a lower positioning groove (1-8) in the middle of the water section housing, which is used to cooperate with the upper positioning groove (8-2) of the water section housing in the middle of the upper clamp (8-1) to position the water section housing on the water pump section.

6. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: The screw stop (2-1) has a contour hole (2-2) on one side of the countersunk hole (1-3) and the contour hole (2-2) matches the front profile of the tapered block (3-1); the screw stop (2-1) has a front center hole (2-3) to expose the front end of the rotating screw (4-1); the screw limiting ring (5-1) has a rear center hole (5-2) to expose the rear end of the rotating screw (4-1).

7. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: The end of the rotating screw (4-1) has an internal hexagonal hole (4-2), and the rotating screw (4-1) is engaged with the threaded hole (3-2) in the center of the tapered block (3-1) through the external thread (4-3).

8. The tolerance compensation device for turning water pump sections according to claim 1, characterized in that: Both the left adjustment block (6-1) and the right adjustment block (7-1) have a lower positioning groove (10) for the water section pipe, which is used to cooperate with the positioning grooves (8-3) on the water section pipe on the left and right sides of the upper clamp (8-1) to position the water section pipe on the water pump section.

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