Water pump detection clamp tool

Abstract

A water pump testing and clamping fixture includes a machine body. A positioning platform is located at the center of the upper surface of the machine body. A water pump is placed on the upper surface of the positioning platform. A central positioning hole is located at the center of the lower surface of the water pump. Side positioning holes are located on the outer edge of the lower surface of the water pump. A central positioning block matching the central positioning hole is located on the upper surface of the positioning platform. Side positioning blocks matching the side positioning holes are located on the upper surface of the positioning platform. A fixing plate is located on the rear side of the upper surface of the machine body. A pressing device matching the water pump is located on the upper part of the front side wall of the fixing plate. A left upright is located on the left side of the upper surface of the positioning platform. Auxiliary uprights are located on the front, rear, and right sides of the upper surface of the positioning platform. A fastening device matching the water pump is located on the left upright. This water pump testing and clamping fixture can achieve rapid positioning and stable clamping, thereby effectively ensuring the accuracy of the test data.

Description

Technical Field

[0001] This utility model relates to a water pump testing clamping fixture. Background Technology

[0002] As a core fluid transport device widely used in industrial, agricultural, and civil fields, the performance and reliability of water pumps directly affect the overall system's operating efficiency and safety. Therefore, rigorous quality testing of water pumps is an essential step in the manufacturing process. Traditional water pump testing usually relies on manual operation or simple clamps for fixing. Existing technology often uses mechanical pressure plates or cylinders for direct clamping, which, although simple in structure, can only constrain the local position of the water pump and is difficult to adapt to the comprehensive positioning requirements of its complex shape. Conventional clamps cannot effectively utilize these characteristics to achieve uniform circumferential clamping, which can easily lead to displacement or vibration of the water pump during testing, thus affecting the reliability of the test data. Summary of the Invention

[0003] The present invention aims to solve the existing technical problem by providing a water pump detection clamping mechanism that can achieve rapid positioning and stable clamping, thereby effectively ensuring the accuracy of the detection data.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] This utility model discloses a water pump testing and clamping fixture, including a machine body. A positioning platform is located at the center of the upper surface of the machine body. A water pump is placed on the upper surface of the positioning platform. A central positioning hole is located at the center of the lower surface of the water pump. Side positioning holes are located at the outer edge of the lower surface of the water pump. A central positioning block matching the central positioning hole is located on the upper surface of the positioning platform. Side positioning blocks matching the side positioning holes are located on the upper surface of the positioning platform. A fixing plate is located on the rear side of the upper surface of the machine body. A pressing device matching the water pump is located on the upper part of the front side wall of the fixing plate. A left upright is located on the left side of the upper surface of the positioning platform. An auxiliary upright is located on the front, rear, and right sides of the upper surface of the positioning platform. A fastening device matching the water pump is located on the left upright. A plurality of axially evenly distributed annular grooves are located on the outer wall of the water pump. The fastening device includes a plurality of fastening bands matching the annular grooves. An external support device matching the fastening bands is located on the auxiliary upright.

[0006] The pressing device includes an upper cylinder mounting seat located on the upper part of the front side wall of the fixed plate; an upper cylinder matching the upper cylinder is provided on the upper cylinder mounting seat; the lower end of the piston rod of the upper cylinder passes downward through the upper cylinder mounting seat and is provided with a pressing plate; an annular pressure step is provided on the upper outer wall of the water pump; a positioning ring outside the water pump is provided on the pressure step; a plurality of circumferentially evenly distributed support rods are provided between the upper surface of the positioning ring and the lower surface of the pressing plate.

[0007] The fastening device includes a left cylinder mounting seat located on the upper right side wall of the left upright; a matching left cylinder is provided on the upper surface of the left cylinder mounting seat; a backing plate is provided at the right end of the piston rod of the left cylinder, which fits against the outer wall of the left side of the water pump; fastening holes matching the ends of the fastening band are provided on the front and rear sides of the backing plate; several fastening cylinder mounting seats are provided on the right side wall of the left upright in a circular pattern outside the left cylinder; fastening cylinder mounting seats are provided with matching fastening cylinders; the right ends of the piston rods of the several fastening cylinders are connected by a fastening ring fitted outside the left cylinder; several circumferentially distributed limiting holes are provided on the fastening ring; the two ends of the fastening band pass through the fastening holes on the front and rear sides and then simultaneously pass through the limiting holes and are wrapped into a limiting knot that fits against the left side wall of the fastening ring.

[0008] The external support device includes a lifting cylinder mounting seat on the side wall of the auxiliary frame opposite to the water pump; a matching lifting cylinder is provided on the lifting cylinder mounting seat; an auxiliary cylinder mounting seat is provided at the upper end of the piston rod of the lifting cylinder; a plurality of guide grooves are evenly distributed from front to back on the side wall of the auxiliary frame opposite to the water pump; a guide block matching the guide groove is provided on the outer wall of the auxiliary cylinder mounting seat; an auxiliary cylinder matching the auxiliary cylinder is provided on the auxiliary cylinder mounting seat; a lifting plate is provided at the end of the piston rod of the auxiliary cylinder; an upper sliding groove and a lower sliding groove are respectively provided on the upper and lower sides of the annular groove; a plurality of extension arms corresponding to the position of the lower sliding groove are provided on the side wall of the lifting plate opposite to the water pump; a hook matching the lower sliding groove extends upward from the end of the extension arm; a lifting inclined surface is provided on the outer wall of the hook, and the upper end of the lifting inclined surface is inclined towards the center of the water pump.

[0009] The lower inner wall of the fastening band is provided with a guide cone surface that is narrower at the top and wider at the bottom.

[0010] The beneficial effects of this utility model are:

[0011] Compared with the prior art, the fit between the central positioning hole and the central positioning block, and the fit between the side positioning hole and the side positioning block of the water pump testing clamping fixture with the structure of this utility model can effectively ensure the stability of the lower end of the water pump. The positioning ring pressed down on the pressure step can effectively ensure the stability of the upper end of the water pump. The left pressure plate can be pressed tightly against the outer wall of the left side of the water pump, and the presence of the fastening band can effectively ensure the stability of the water pump around its perimeter. Thus, the stability of the water pump when it is clamped is guaranteed to the greatest extent, and the accuracy of the water pump testing is ultimately guaranteed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the water pump testing and clamping fixture of this utility model;

[0013] Figure 2 yes Figure 1 An enlarged view of part A;

[0014] Figure 3 yes Figure 1 An enlarged view of part B;

[0015] Figure 4 yes Figure 1 Enlarged view of part C. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Please see Figures 1 to 4 This utility model provides a water pump testing and clamping fixture, including a machine body 1. A positioning platform 2 is located at the center of the upper surface of the machine body 1. A water pump 3 is placed on the upper surface of the positioning platform 2. A central positioning hole 4 is located at the center of the lower surface of the water pump 3. Side positioning holes 5 are located on the outer edge of the lower surface of the water pump 3. A central positioning block 6 matching the central positioning hole 4 is located on the upper surface of the positioning platform 2. Side positioning blocks 7 matching the side positioning holes 5 are located on the upper surface of the positioning platform 2. A fixing plate 8 is located on the rear side of the upper surface of the machine body 1. The upper part of the front side wall of the fixed plate 8 is provided with a pressing device that matches the water pump 3; the left side of the upper surface of the positioning platform 2 is provided with a left upright 9; the front, rear, and right sides of the upper surface of the positioning platform 2 are provided with an auxiliary upright 10; the left upright 9 is provided with a fastening device that matches the water pump 3; the outer wall of the water pump 3 is provided with a plurality of annular grooves 11 evenly distributed in the axial direction; the fastening device includes a plurality of fastening bands 12 that match the annular grooves 11; the auxiliary upright 10 is provided with an external support device that matches the fastening bands 12.

[0018] The pressing device includes an upper cylinder mounting seat 13 located on the upper part of the front side wall of the fixed plate 8; an upper cylinder 14 matching the upper cylinder mounting seat 13 is provided on the upper cylinder mounting seat 13; the lower end of the piston rod of the upper cylinder 14 passes downward through the upper cylinder mounting seat 13 and is provided with a lower pressing plate 15; an annular pressure step 16 is provided on the upper outer wall of the water pump 3; a positioning ring 17 is provided on the pressure step 16 outside the water pump 3; a plurality of circumferentially evenly distributed support rods 18 are provided between the upper surface of the positioning ring 17 and the lower surface of the lower pressing plate 15.

[0019] The fastening device includes a left cylinder mounting seat 19 located on the upper right side wall of the left upright 9; a matching left cylinder 20 is provided on the upper surface of the left cylinder mounting seat 19; a backing plate 21 is provided at the right end of the piston rod of the left cylinder 20, which fits against the outer left side wall of the water pump 3; fastening holes 22 matching the two ends of the fastening band 12 are provided on the front and rear sides of the backing plate 21; and a plurality of fastening devices are provided on the right side wall of the left upright 9, which are circumferentially distributed outside the left cylinder 20. Cylinder mounting base 23; the fastening cylinder mounting base 23 is provided with a matching fastening cylinder 24; the right ends of the piston rods of several fastening cylinders 24 are connected by a fastening ring 25 outside the left cylinder 20; the fastening ring 25 is provided with several circumferentially evenly distributed limiting holes 26; the two ends of the fastening band 12 pass through the fastening holes 22 on the front and rear sides and then pass through the limiting holes 26 at the same time and are wrapped into a limiting knot 27 that fits against the left side wall of the fastening ring 25.

[0020] The external support device includes a lifting cylinder mounting base 28 on the side wall of the auxiliary support frame 10 opposite to the water pump 3; the lifting cylinder mounting base 28 is provided with a matching lifting cylinder 29; the upper end of the piston rod of the lifting cylinder 29 is provided with an auxiliary cylinder mounting base 30; the side wall of the auxiliary support frame 10 opposite to the water pump 3 is provided with a plurality of guide grooves 31 evenly distributed from front to back; the outer wall of the auxiliary cylinder mounting base 30 is provided with guide blocks 32 that match the guide grooves 31; the auxiliary cylinder mounting base 30 is provided with... An auxiliary cylinder 33 is matched with it; the piston rod end of the auxiliary cylinder 33 is provided with a lifting plate 34; the upper and lower sides of the annular groove 11 are respectively provided with an upper sliding groove 35 and a lower sliding groove 36 that are connected to it; the side wall of the lifting plate 34 opposite to the water pump 3 is provided with several extension arms 37 corresponding to the position of the lower sliding groove 36; the end of the extension arm 37 extends upward to a hook 38 that matches the lower sliding groove 36; the outer wall of the hook 38 is provided with a lifting slope 39, and the upper end of the lifting slope 39 is inclined towards the center of the water pump 3.

[0021] The lower inner wall of the fastening band 12 is provided with a guide cone surface 40 that is narrower at the top and wider at the bottom.

[0022] The method of using this utility model is as follows:

[0023] The fit between the central positioning hole 4 and the central positioning block 6, and the fit between the side positioning hole 5 and the side positioning block 7, can effectively ensure the stability of the lower end of the water pump 3. The positioning ring 17 pressed down on the pressure step 16 can effectively ensure the stability of the upper end of the water pump 3. The backing plate 21 can be pressed tightly against the outer wall of the left side of the water pump 3. The presence of the fastening band 12 can effectively ensure the stability of the water pump 3 around its perimeter, thereby maximizing the stability of the water pump 3 when it is clamped, and ultimately ensuring the accuracy of the water pump 3 detection.

[0024] After the water pump 3 has been tested, the tested water pump 3 can be removed from the positioning platform 2 and a new water pump can be placed on it. When it is necessary to remove the tested water pump, the upper cylinder 14, the left cylinder 20, the fastening cylinder 24, the auxiliary cylinder 33 and the lifting cylinder 29 can be started.

[0025] When the lifting cylinder 29 is activated, its piston rod moves the auxiliary cylinder mounting base 30 upward, thereby moving the auxiliary cylinder 33 upward. As the auxiliary cylinder 33 moves upward, the hook 38 moves upward simultaneously. When the hook 38 moves upward, it can be squeezed into the gap between the inner wall of the fastening band 12 and the inner circumferential surface of the annular groove 11 via the lifting inclined surface 39. The presence of the upper sliding groove 35 effectively provides space for the hook 38 to move upward. When the left cylinder 20 is activated, its piston rod moves the backing plate 21 to the left, away from the water pump 3. When the fastening cylinder 24 is activated, its piston rod moves the fastening ring 25 closer to the water pump 3. As the fastening ring 25 moves, the water pump... As the fastening band 12 loosens, the piston rods of the auxiliary cylinders 33 on the front, rear, and right sides drive the hook 38 to move away from the water pump 3, thereby causing the fastening band 12 to disengage from the annular groove 11 and wrap around the water pump 3. When the upper cylinder 14 is activated, the piston rod of the upper cylinder 14 will drive the lower pressure plate 15 to move upward. When the lower pressure plate 15 moves upward, the lower pressure plate 15 drives the positioning ring 17 to move upward synchronously through the support rod 18. At this time, the water pump 3 is no longer restricted by any structure, and the water pump 3 can be easily removed from the positioning platform 2. The new water pump can pass through all the fastening bands 12 in sequence through the internal space of the lowest fastening band 12, realizing the rapid feeding of the water pump 3.

[0026] The lower inner wall of the fastening band 12 is provided with a guide cone surface 40 that is narrower at the top and wider at the bottom. The presence of the guide cone surface 40 makes it easier for the hook 38 to be squeezed into the gap between the inner wall of the fastening band 12 and the inner circumferential surface of the annular groove 11.

Claims

1. A water pump testing and clamping fixture, comprising a machine body, characterized in that: A positioning platform is provided at the center of the upper surface of the machine body; a water pump is placed on the upper surface of the positioning platform; a central positioning hole is provided at the center of the lower surface of the water pump; a side positioning hole is provided at the outer edge of the lower surface of the water pump; a central positioning block matching the central positioning hole is provided on the upper surface of the positioning platform; a side positioning block matching the side positioning hole is provided on the upper surface of the positioning platform; a fixing plate is provided on the rear side of the upper surface of the machine body; a pressing device matching the water pump is provided on the upper part of the front side wall of the fixing plate; a left upright is provided on the left side of the upper surface of the positioning platform; an auxiliary upright is provided on the front, rear, and right sides of the upper surface of the positioning platform; a fastening device matching the water pump is provided on the left upright; a plurality of annular grooves evenly distributed axially are provided on the outer wall of the water pump; the fastening device includes a plurality of fastening bands matching the annular grooves; an external support device matching the fastening bands is provided on the auxiliary upright.

2. The water pump detection gripper tool of claim 1, wherein: The pressing device includes an upper cylinder mounting seat located on the upper part of the front side wall of the fixed plate; an upper cylinder matching the upper cylinder is provided on the upper cylinder mounting seat; the lower end of the piston rod of the upper cylinder passes downward through the upper cylinder mounting seat and is provided with a pressing plate; an annular pressure step is provided on the upper outer wall of the water pump; a positioning ring outside the water pump is provided on the pressure step; a plurality of circumferentially evenly distributed support rods are provided between the upper surface of the positioning ring and the lower surface of the pressing plate.

3. The water pump detection gripper tool of claim 1, wherein: The fastening device includes a left cylinder mounting seat located on the upper right side wall of the left upright; a matching left cylinder is provided on the upper surface of the left cylinder mounting seat; a backing plate is provided at the right end of the piston rod of the left cylinder, which fits against the outer wall of the left side of the water pump; fastening holes matching the ends of the fastening band are provided on the front and rear sides of the backing plate; several fastening cylinder mounting seats are provided on the right side wall of the left upright in a circular pattern outside the left cylinder; fastening cylinder mounting seats are provided with matching fastening cylinders; the right ends of the piston rods of the several fastening cylinders are connected by a fastening ring fitted outside the left cylinder; several circumferentially distributed limiting holes are provided on the fastening ring; the two ends of the fastening band pass through the fastening holes on the front and rear sides and then simultaneously pass through the limiting holes and are wrapped into a limiting knot that fits against the left side wall of the fastening ring.

4. The water pump detection gripper tool of claim 1, wherein: The external support device includes a lifting cylinder mounting seat on the side wall of the auxiliary frame opposite to the water pump; a matching lifting cylinder is provided on the lifting cylinder mounting seat; an auxiliary cylinder mounting seat is provided at the upper end of the piston rod of the lifting cylinder; a plurality of guide grooves are evenly distributed from front to back on the side wall of the auxiliary frame opposite to the water pump; a guide block matching the guide groove is provided on the outer wall of the auxiliary cylinder mounting seat; an auxiliary cylinder matching the auxiliary cylinder is provided on the auxiliary cylinder mounting seat; a lifting plate is provided at the end of the piston rod of the auxiliary cylinder; an upper sliding groove and a lower sliding groove are respectively provided on the upper and lower sides of the annular groove; a plurality of extension arms corresponding to the position of the lower sliding groove are provided on the side wall of the lifting plate opposite to the water pump; a hook matching the lower sliding groove extends upward from the end of the extension arm; a lifting inclined surface is provided on the outer wall of the hook, and the upper end of the lifting inclined surface is inclined towards the center of the water pump.

5. The water pump detection gripper tool of claim 4, wherein: The inner wall of the lower part of the fastening belt is provided with a guide taper which is narrow at the top and wide at the bottom.

Images