Fixing clamp for pump body finish machining

Abstract

The utility model relates to a stationary fixture for pump body finish machining, which comprises a bottom plate, a mounting seat arranged on the bottom plate, and a positioning seat and an air cylinder assembly which are arranged on two sides of the mounting seat, and the air cylinder assembly comprises a side pressure air cylinder, a locking air cylinder, a switching rod and a pressing sleeve. The valve body is extruded through the output end of the side pressing air cylinder, so that the side face of the valve body abuts against the positioning groove, then the switching rod is controlled to move downwards through the locking air cylinder, the pressing sleeve tightly presses the valve body, and therefore the effect of automatically locking the valve body is achieved. The positioning groove of the positioning base is formed through finish milling, and the orientation of the positioning groove is perpendicular to the bottom face of the positioning base; as the side face of the valve body abuts against the positioning groove, the direction of the inner cavity or the mounting hole of the valve body is perpendicular to the bottom plate, the mounting precision of the valve body is guaranteed, and the method is suitable for valve body finish machining.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a fixing fixture for fine machining of a pump body. Background Art

[0002] The pump body of the cleaner is usually made by a casting process. In order to improve the installation accuracy of the pump body, the cast pump body is usually subjected to secondary finishing in a machining center. The traditional fixture used to fix the pump body is mainly pneumatic fixture, including a base plate, a cylinder and a pressing sleeve. The base plate is provided with an installation groove for installing the pump body. The cylinder drives the pressing sleeve to press the pump body. However, when the fixture presses the pump body, the action of the cylinder often causes the pump body to offset relative to the fixture, making it impossible to maintain the verticality of the pump body, seriously affecting the dimensional accuracy of the cylinder. Summary of the Invention

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the present invention is: a fixing fixture for fine processing of the pump body, comprising a base plate, a mounting seat arranged on the base plate, and a positioning seat and a cylinder assembly arranged on both sides of the mounting seat. The mounting seat and the base plate are combined to form a mounting groove for placing the pump body. The positioning seat is provided with a positioning groove for abutting the pump body on the side facing the mounting groove. The cylinder assembly comprises a side pressure cylinder, a locking cylinder, a transfer rod and a pressing sleeve. The output end of the side pressure cylinder moves back and forth in the direction of the positioning groove. The output end of the locking cylinder is connected to the transfer rod, and the two ends of the transfer rod are fixedly connected to a pressing sleeve for locking the pump body.

[0004] The present invention is further configured such that the bottom plate is provided with an air channel a for controlling the operation of the side pressure cylinder, and air channels b and c for controlling the operation of the locking cylinder on both sides of the mounting groove.

[0005] Furthermore, the directions of the air outlet ends of the airways a, b and c are perpendicular to the base plate, and the air inlet ends of the airways a, b and c are arranged on one side of the base plate. The bottom of the side pressure cylinder is provided with an air hole d connected to the airway a, and the bottom of the locking cylinder is provided with an air hole e and an air hole f connected to the airway b and c.

[0006] Using the above technical solution, the bottom plate is provided with two sets of air channels a, which respectively control the operation of the side pressure cylinders on both sides. When the air source is injected into the air channel a and enters the side pressure cylinder through the air hole d, the output push rods on both sides of the side pressure cylinder move outward at the same time, so that the mounting parts at both ends of the valve body are subjected to pressure at the same time, so that the force on the valve body is balanced. When the air source stops being injected, the built-in spring of the side pressure cylinder automatically resets; the air channel b, the air channel c and the locking cylinder form a loop. When the air source enters from the air channel b and is discharged from the air channel c, the output end of the locking cylinder rotates and presses down the locking valve body, otherwise it is unlocked.

[0007] The present invention is further configured such that a pressure relief hole is provided on one side of the bottom plate located at the airway a / airway b / airway c.

[0008] With the above technical solution, the pressure relief hole is a threaded hole for installing a plug. When the fixture needs maintenance, the plug of the pressure relief hole is loosened to discharge the gas in time, so that the valve body can be removed for easy maintenance.

[0009] The present invention is further configured such that the positioning groove is a rectangular groove perpendicular to the bottom surface of the positioning seat.

[0010] By adopting the above technical solution, the side of the valve body is provided with a round foot portion distributed in a rectangular shape. The diameter of the round foot portion is adapted to the rectangular groove. The round foot portion is used as the installation reference to ensure the installation accuracy of the valve body during fine machining.

[0011] The present invention is further configured such that the mounting seat is provided with an L-shaped portion for supporting both ends of the valve body.

[0012] By adopting the above technical solution, since the dimensional accuracy of the L-shaped part is easy to control, the valve body can be raised by the L-shaped part to avoid contact between the valve body and the bottom surface of the installation groove, so that the valve body is parallel to the bottom plate surface, limiting the freedom of the valve body.

[0013] The utility model is further configured such that a slot and a pin hole are provided in the middle of the transfer rod, the output end of the locking cylinder is connected to the transfer rod via the slot and the pin hole, and side rods for connecting the pressing sleeve are provided at both ends of the transfer rod.

[0014] Furthermore, the pressing sleeve is U-shaped, and both ends of the pressing sleeve are provided with extension parts for pressing the pump body.

[0015] With the above technical solution, when the locking cylinder controls the pressing sleeve to press the pump body, the extensions on both sides simultaneously press the pump body, thereby preventing the pump body from warping when being fixed.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When clamping the valve body, place the valve body into the installation groove, squeeze the valve body through the output end of the side pressure cylinder, so that the side of the valve body abuts against the positioning groove, and then use the locking cylinder to control the transfer rod to move downward, so that the compression sleeve presses the valve body tightly, thereby achieving the effect of automatically locking the valve body;

[0018] 2. The positioning groove of the positioning seat is formed by precision milling. The direction of the positioning groove is perpendicular to the bottom surface of the positioning seat. Since the side of the valve body abuts against the positioning groove, the inner cavity or mounting hole of the valve body is perpendicular to the base plate, thereby ensuring the installation accuracy of the valve body and being suitable for precision machining of the valve body.

[0019] The embodiments of the present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 For the utility model Figure 1 A partial enlarged view of the A direction view;

[0022] Figure 3 This is a front view of the base plate of the present invention;

[0023] Figure 4 For the utility model Figure 3 Sectional view of the B direction view;

[0024] Figure 5 For the utility model Figure 3 Sectional view of the C direction view;

[0025] Figure 6 A perspective view of the side pressure cylinder of the present utility model;

[0026] Figure 7 A three-dimensional diagram of the locking cylinder of the present utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the utility model when the valve body is fixed;

[0028] Wherein: 1 - base plate, 2 - mounting seat, 3 - positioning seat, 4 - cylinder assembly, 5 - side pressure cylinder, 6 - locking cylinder, 7 - adapter rod, 8 - pressing sleeve, 9 - valve body, 11 - mounting groove, 12 - air channel a, 13 - air channel b, 14 - air channel c, 15 - air outlet, 16 - air inlet, 17 - air hole d, 18 - air hole e, 19 - air hole f, 20 - pressure relief hole, 21 - L-shaped part, 31 - positioning groove, 71 - card slot, 72 - pin hole, 73 - side rod, 81 - extension; DETAILED DESCRIPTION

[0029] like Figure 1 、 2 As shown, a fixing fixture for finishing a pump body comprises a base plate 1, a mounting seat 2 arranged on the base plate 1, and a positioning seat 3 and a cylinder assembly 4 arranged on both sides of the mounting seat 2. The mounting seat 2 is combined with the base plate 1 to form a mounting groove 11 for placing the pump body. The positioning seat 3 is provided with a positioning groove 31 for abutting the pump body on the side facing the mounting groove 11. The cylinder assembly 4 comprises a side pressure cylinder 5, a locking cylinder 6, a transfer rod 7 and a pressing sleeve 8. The output end of the side pressure cylinder 5 moves back and forth in the direction of the positioning groove 31. The output end of the locking cylinder 6 is connected to the transfer rod 7. The two ends of the transfer rod 7 are fixedly connected to a pressing sleeve 8 for locking the pump body.

[0030] Combine Figure 3-7As shown, in this embodiment, the base plate 1 is provided with an air channel a12 for controlling the operation of the side pressure cylinder 5, and an air channel b13 and an air channel c14 for controlling the operation of the locking cylinder 6 on both sides of the mounting groove 11, the air outlet ends 15 of the air channels a12, b13 and c14 are perpendicular to the base plate 1, and the air inlet ends 16 of the air channels a12, b13 and c14 are provided on one side of the base plate 1, the bottom of the side pressure cylinder 5 is provided with an air hole d17 connected to the air channel a12, the bottom of the locking cylinder 6 is provided with an air hole e18 and an air hole f19 connected to the air channel b13 and c14, and the base plate 1 is provided with a pressure relief hole 20 on one side of the air channel a12 / air channel b13 / air channel c14.

[0031] Combine Figure 8 As shown, in this embodiment, the positioning groove 31 is a rectangular groove perpendicular to the bottom surface of the positioning seat 3, and the side of the valve body 9 is provided with a round foot portion 91 distributed in a rectangular shape. The diameter of the round foot portion 91 is adapted to the rectangular groove. The round foot portion 91 is used as the installation reference to ensure the installation accuracy of the valve body 9 during fine processing.

[0032] In this embodiment, the mounting seat 2 is provided with an L-shaped portion 21 for supporting both ends of the valve body 9. Since the dimensional accuracy of the L-shaped portion 21 is easy to control, the valve body 9 is lifted by the L-shaped portion 21 to prevent the valve body 9 from contacting the bottom surface of the mounting groove 11, so that the valve body 9 is parallel to the surface of the base plate 1, thereby limiting the degree of freedom of the valve body 9.

[0033] In this embodiment, a card slot 71 and a pin hole 72 are provided in the middle of the adapter rod 7. The output end of the locking cylinder 6 is connected to the adapter rod 7 through the card slot 71 and the pin hole 72. Side rods 73 for connecting the pressing sleeve 8 are provided at both ends of the adapter rod 7. The side rod 73 is connected to the pressing sleeve 8 through a retaining spring. The pressing sleeve 8 is U-shaped, and extension parts 81 for tightening the pump body are provided at both ends of the pressing sleeve 8.

[0034] The working principle of the utility model is that the bottom plate 1 is provided with two sets of air channels a12, which respectively control the operation of the side pressure cylinders 5 on both sides. When the air source is injected into the air channel a12 and enters the side pressure cylinder 5 through the air hole d17, the output push rods on both sides of the side pressure cylinder 5 move outward at the same time, so that the mounting parts at both ends of the valve body 9 are simultaneously subjected to pressure, so that the force of the valve body 9 is balanced. When the air source stops being injected, the built-in spring of the side pressure cylinder 5 automatically resets; the air channel b13, the air channel c14 and the locking cylinder 6 form a loop, and the locking cylinder 6 has a built-in guide so that its output end has a rotating action when moving. When the air source enters from the air channel b13 and is discharged from the air channel c14, the output end of the locking cylinder 6 rotates 90° and presses down the locking valve body 9. Conversely, the locking cylinder 6 moves up and rotates 90° in the opposite direction, so that the pressing sleeve 8 is away from the mounting groove 11, so as to facilitate the disassembly and assembly of the valve body 9. When clamping the valve body 9, the valve body 9 is placed in the mounting groove 11, and the valve body 9 is squeezed by the output end of the side pressure cylinder 5, so that the side of the valve body 9 abuts against the positioning groove 31, and then the transfer rod 7 is controlled to move downward by the locking cylinder 6, and the pressing sleeve 8 is pressed against the valve body 9, thereby achieving the effect of automatically locking the valve body 9.

[0035] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A fixing fixture for finishing a pump body, characterized in that: The invention comprises a base plate (1), a mounting seat (2) arranged on the base plate (1), and a positioning seat (3) and a cylinder assembly (4) arranged on both sides of the mounting seat (2); the mounting seat (2) and the base plate (1) are combined to form a mounting groove (11) for placing a pump body; the positioning seat (3) is provided with a positioning groove (31) for abutting against the pump body on one side facing the mounting groove (11); the cylinder assembly (4) comprises a side pressure cylinder (5), a locking cylinder (6), a transfer rod (7) and a pressing sleeve (8); the output end of the side pressure cylinder (5) reciprocates in the direction of the positioning groove (31); the output end of the locking cylinder (6) is connected to the transfer rod (7); and both ends of the transfer rod (7) are fixedly connected to a pressing sleeve (8) for locking the pump body.

2. The fixing fixture for finishing a pump body according to claim 1, characterized in that: The base plate (1) is provided with an air passage a (12) for controlling the operation of the side pressure cylinder (5), and an air passage b (13) and an air passage c (14) for controlling the operation of the locking cylinder (6) on both sides of the mounting groove (11).

3. The fixing fixture for finishing a pump body according to claim 2, characterized in that: The directions of the air outlet ends (15) of the air passage a (12), the air passage b (13) and the air passage c (14) are perpendicular to the bottom plate (1); the air inlet ends (16) of the air passage a (12), the air passage b (13) and the air passage c (14) are arranged on one side of the bottom plate (1); the bottom of the side pressure cylinder (5) is provided with an air hole d (17) connected to the air passage a (12); the bottom of the locking cylinder (6) is provided with an air hole e (18) and an air hole f (19) connected to the air passage b (13) and the air passage c (14).

4. The fixing fixture for finishing a pump body according to claim 3, characterized in that: The bottom plate (1) is provided with a pressure relief hole (20) on one side of the airway a (12) / airway b (13) / airway c (14).

5. The fixing fixture for finishing a pump body according to claim 1, characterized in that: The positioning groove (31) is a rectangular groove perpendicular to the bottom surface of the positioning seat (3).

6. The fixing fixture for finishing a pump body according to claim 1, characterized in that: The mounting seat (2) is provided with an L-shaped portion (21) for supporting both ends of the valve body.

7. The fixing fixture for finishing a pump body according to claim 1, characterized in that: A slot (71) and a pin hole (72) are provided in the middle of the transfer rod (7); the output end of the locking cylinder (6) is connected to the transfer rod (7) via the slot (71) and the pin hole (72); and side rods (73) for connecting to the pressing sleeve (8) are provided at both ends of the transfer rod (7).

8. The fixing fixture for finishing a pump body according to claim 7, characterized in that: The pressing sleeve (8) is U-shaped, and both ends of the pressing sleeve (8) are provided with extension parts (81) for pressing the pump body.

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