Clamp for machining workpiece

Abstract

The utility model relates to a fixture for processing a workpiece, which comprises a base station, a positioning mechanism and a pressing mechanism, and is characterized by further comprising a turnover mechanism, according to the flushing fluid supply unit, a first supply module is provided with a first pipeline communicated with a fluid supply part, a second supply module is configured to be used for blocking an inflow port and / or an outflow port of an internal flow channel in a workpiece to be machined, and the second supply module is provided with a second pipeline communicated with the first pipeline. And a communicating port for communicating the first pipeline with the second pipeline is formed in the base station, so that the to-be-processed workpiece can rotate along the rotating axis of the base station, and flushing fluid flows to the second pipeline through the first pipeline to an internal flow channel of the to-be-processed workpiece and is sprayed out from the opening. The tool has the advantages that aluminum scraps can be prevented from entering a workpiece in the machining process; and aluminum skimmings cannot be brought into an internal flow channel again, the cleaning effect is improved, and the cleanliness of the interior of the workpiece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of processing equipment, in particular to a clamp for processing workpieces. Background Art

[0002] Existing products usually produce debris after processing. These debris will be scattered on the bed of the machine tool and interfere with the processing of subsequent products. In order to solve the above problem, the utility model patent "Drilling machine for hydraulic valve block processing" with patent number ZL202222994241.5 (authorization announcement number CN219188690U) discloses a solution for cleaning the debris on the crankshaft from top to bottom through a water spray component. Although it can effectively clean the debris on the valve block, if the workpiece to be processed is Figure 1 and Figure 2 The inverter housing shown here presents additional assembly problems.

[0003] A water conduit 2' having an inlet and / or an outlet is provided in the inverter housing, and a first opening 3' connected to the water conduit 2' is provided on the upper surface thereof. The product needs to be processed on its upper surface using tools such as a milling cutter and a drill bit, so that during the processing, aluminum chips will enter the water conduit 2' from the first opening 3' and need to be cleaned in real time, otherwise it will interfere with subsequent processing. If the above device is used to clean the product, the water sprayed by the water spray component will enter the water conduit 2' from the first opening 3' for cleaning, which will cause the following two problems: First, since the milling cutter, drill bit and other tools are operated above the first opening 3', the water sprayed by the water spray component will interfere with the processing; Second, the inflow direction of the water spray component is the same as the inflow direction of the aluminum chips. When the water enters for cleaning, the aluminum chips will be brought into the water conduit 2' together, making it difficult to clean. If a special cleaning device is customized, it will cost a lot. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a clamp for machining workpieces which can prevent aluminum chips from entering the interior of the product during the machining process in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: the fixture for processing workpieces comprises

[0006] abutment;

[0007] A positioning mechanism, which is arranged on the base and is used to position the workpiece to be processed and completely expose a processing area of ​​the workpiece to be processed, wherein the processing area is provided with an opening communicating with an internal flow channel of the workpiece to be processed; and

[0008] A clamping mechanism, disposed on the base and used to press the workpiece to be processed positioned by the positioning mechanism;

[0009] It is characterized by: it also includes:

[0010] A turning mechanism connected to the base, capable of turning the base to achieve multi-angle processing of the workpiece to be processed;

[0011] The flushing liquid supply unit includes a liquid supply part, a first supply module installed on the lower surface of the base, and a second supply module installed on the upper surface of the base, the first supply module is provided with a first pipeline connected to the liquid supply part, and the second supply module is configured to block the inlet and / or outlet of the internal flow channel in the workpiece to be processed, and the second supply module is provided with a second pipeline connected to the first pipeline, and correspondingly, the base is provided with a connecting port for connecting the first pipeline and the second pipeline, so as to achieve: the workpiece to be processed can rotate along the rotation axis of the base while the flushing liquid flows from the first pipeline to the second pipeline to the internal flow channel of the workpiece to be processed and is sprayed out from the opening.

[0012] In order to enable the flushing liquid to flow into the second pipeline from bottom to top, the flushing liquid supply unit further includes a pump body for pumping the flushing liquid from the first pipeline to the second pipeline; and

[0013] The valve body is arranged on the connection channel between the first supply module and the liquid supply part. In this way, the pump body and the valve body can provide power when the flushing liquid flows from the first pipeline to the second pipeline.

[0014] The clamping mechanism has various structures. From the perspective of structural simplicity, preferably, the clamping mechanism includes:

[0015] A piston rod, the lower end of which is located inside the oil cylinder and the upper end of which extends outside the oil cylinder;

[0016] The pressure rod includes a base end connected to the upper end of the piston rod and an action end, and a clamping space for clamping the workpiece to be processed is formed between the action end of the pressure rod and the positioning seat located on the base. In this way, the oil cylinder can drive the pressure rod to clamp the workpiece to be processed through the piston rod.

[0017] The clamping mechanism may also have other structures. Preferably, the clamping mechanism also includes a hinged seat connected to the middle end of the pressure rod.

[0018] In order to enable the workpiece to be processed to rotate along the rotation axis of the base while the flushing liquid flows from the first pipeline to the second pipeline to the internal flow channel of the workpiece to be processed and sprays out from the opening, the first pipeline is further arranged parallel to the rotation axis, and the second pipeline is "L" shaped, including a first flow channel parallel to the rotation axis and a second flow channel perpendicular to the rotation axis. Such a flow path design can also accelerate the flow rate of the flushing liquid in the first pipeline and the second pipeline.

[0019] The flipping mechanism has various structures. From the perspective of structural simplicity, preferably, the flipping mechanism includes:

[0020] Brackets, arranged on both sides of the base, used for connecting the base;

[0021] The driving member is arranged on the bracket and is used for driving the base and the bracket to rotate along the rotation axis.

[0022] Furthermore, the flushing liquid supply unit includes a water channel distributor, the water channel distributor is arranged on the driving member, the input end of the water channel distributor is connected to the liquid supply part, and the output end of the water channel distributor is connected to the first pipeline through the bracket. In this way, the flushing liquid in the liquid supply part enters the first pipeline through the water channel distributor.

[0023] Furthermore, the clamp further includes a hydraulic oil supply unit for inputting hydraulic oil into the oil cylinder of the clamping mechanism, the hydraulic oil supply unit includes an oil supply part and a third pipeline arranged inside the base, the third pipeline connects the output end of the oil supply part with the oil delivery end of the oil cylinder. In this way, the hydraulic oil supply unit can continuously input hydraulic oil into the oil cylinder.

[0024] Furthermore, the hydraulic oil supply unit includes an oil circuit distributor, the oil circuit distributor is arranged on the driving member, the input end of the oil circuit distributor is connected to the oil supply part, and the output end of the oil circuit distributor is connected to the third pipeline through the bracket. In this way, the hydraulic oil in the oil supply part can enter the third pipeline through the oil circuit distributor.

[0025] In order to reduce the installation space, further, the hydraulic oil supply unit is at least partially integrated with the flushing liquid supply unit, and includes an oil-water distributor, the oil-water distributor is arranged on the driving member, the input end of the oil-water distributor is respectively connected with the oil supply part and the water supply part, and the output end of the oil-water distributor is respectively connected with the third pipeline and the first pipeline through the bracket. In this way, the flushing liquid in the liquid supply part and the hydraulic oil in the oil supply part can enter the first pipeline and the third pipeline respectively through the oil-water distributor.

[0026] Compared with the prior art, the advantages of the utility model are: 1. The second supply module in the fixture for processing workpieces has two functions. First, the second supply module can block the inlet and / or outlet of the internal flow channel in the workpiece to be processed, so that aluminum chips will not flow out from the inlet and / or outlet, but only flow out from the opening along with the flushing liquid; second, the second supply module is provided with a second pipeline connected to the first pipeline, so that the flushing liquid can flow through the first pipeline and the second pipeline and enter the internal flow channel in the workpiece to be processed for cleaning;

[0027] 2. The workpiece to be processed in the workpiece processing fixture can be processed while rotating along the rotation axis of the base, while the flushing liquid flows from the first pipeline to the second pipeline to the internal flow channel of the workpiece to be processed and sprayed out from the opening, so that aluminum chips can be prevented from entering the interior of the workpiece during the processing;

[0028] 3. The aluminum chips generated during processing enter the internal flow channel from the opening of the workpiece to be processed, and the water flows into the internal flow channel from the inlet and / or outlet and then flows out from the opening for cleaning. In this way, the aluminum chips will not be brought into the internal flow channel again, thereby improving the cleaning effect and ensuring the cleanliness of the inside of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a special product in the background technology of the utility model;

[0030] Figure 2 It is a structural schematic diagram of another angle of a special product in the background technology of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of a workpiece cleaning device in an embodiment of the utility model;

[0032] Figure 4 This is a structural schematic diagram of a workpiece cleaning device in another angle in an embodiment of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the bottom plate and the water outlet joint in the embodiment of the utility model;

[0034] Figure 6 This is a schematic diagram of the structure of water inlet to the water outlet plate and oil inlet to the oil cylinder in the embodiment of the utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the L-shaped connecting plate, the bottom plate and the workpiece to be cleaned in the embodiment of the utility model;

[0036] Figure 8 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0037] Fig. 9It is a cross-sectional view reflecting that all water channels in the embodiment of the utility model are connected. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] like Figures 3 to 9 The preferred embodiment of the utility model is shown in FIG. 1 . The fixture for machining workpieces in this embodiment comprises a base 1 , a positioning mechanism, a clamping mechanism 3 , a turning mechanism, a flushing liquid supply unit and a hydraulic oil supply unit.

[0040] The workpiece 2 to be processed is described by taking the workpiece in the background technology as an example, wherein the positioning mechanism 15 is arranged on the base 1 and is used to position the workpiece 2 to be processed, and the positioning mechanism 15 has a groove or a protrusion matching the shape of the workpiece 2 to be processed. The positioning mechanism 15 completely exposes the processing area of ​​the workpiece 2 to be processed, and the processing area is provided with an opening 52 connected to the internal flow channel 5 of the workpiece 2 to be processed, wherein the internal flow channel 5 of the workpiece to be processed may have only one inlet 51, or may have both an inlet 51 and an outlet. The internal flow channel 5 of this embodiment has open ends at both ends, and since both ends are for the flushing liquid to flow in, they may be referred to as inlets 51.

[0041] The clamping mechanism 3 of this embodiment is arranged on the base 1 and is used to hold down the workpiece 2 to be processed which is positioned by the positioning mechanism. It is divided into two types: the first type of clamping mechanism 3 includes a pressure rod 31, a cylinder 32 and a piston rod 33, wherein the lower end of the piston rod 33 is located inside the cylinder 32, and the upper end extends out of the cylinder 32. Correspondingly, the pressure rod 31 includes a base end 311 and an action end 312 connected to the upper end of the piston rod 33. A clamping space for clamping the workpiece 2 to be processed is formed between the action end 312 of the pressure rod 31 and the positioning seat 35 located on the base 1. The second type of clamping mechanism 3 also includes a hinge seat 34 connected to the middle end of the pressure rod 31. Figure 3 These two clamping mechanisms are respectively provided on the base 1.

[0042] In addition, after the workpiece 2 to be processed is pressed and positioned, multi-angle processing of the workpiece 2 to be processed can be achieved with the help of a flipping mechanism, wherein the flipping mechanism is connected to the base 1, and the flipping mechanism also includes a bracket 12 and a driving member. The driving member of this embodiment is a four-axis motor main seat 13 and a four-axis motor tail seat 14 arranged at the head and tail relative to the base 1, wherein the bracket 12 is provided with two and is arranged on both sides of the base 1 for connecting the base 1, and the rotating ends of the four-axis motor main seat 13 and the four-axis motor tail seat 14 are respectively arranged at the outer ends of the vertical plates of the two brackets 12, and are used to drive the base 1 and the bracket 12 to rotate along the rotation axis, such as Figure 3 shown.

[0043] As mentioned above, due to the particularity of the opening 52 of the specific workpiece 2 to be processed, in order to avoid the cost and excessive process problems caused by the additional final cleaning step, a modification method of directly adding it to the existing fixture is adopted. To this end, the first supply module 8 and the second supply module 7 of the flushing liquid supply unit are respectively installed on the upper and lower surfaces of the base 1 by adding it, and of course also include a liquid supply part, a pump body and a valve body that are fluidly connected to the first supply module 8 and the second supply module 7, wherein the liquid supply part can be a water tank.

[0044] refer to Figure 5 , there are two internal flow channels 5 in the workpiece 2 to be processed, and correspondingly, there are also two second supply modules 7. The first supply module 8 is a bottom plate with a first pipeline 9 connected to the liquid supply part, wherein the first pipeline 9 has a first liquid inlet 91, a first liquid outlet 92 and a second liquid outlet 93. The second supply module 7 has a water inlet interface 71 and a water outlet interface 72, and forms a second pipeline 16 connected to the first pipeline 9. Correspondingly, a fourth pipeline 4 is opened on the base 1 to connect the first pipeline 9 and the second pipeline 16. The fourth pipeline 4 has a second liquid inlet 41 connected to the first liquid outlet 92 and the second liquid outlet 93 and a third liquid outlet 42 connected to the water inlet interface 71, and the first liquid outlet 92 and the second liquid outlet 93 are respectively connected to the two water inlet interfaces 71 through the fourth pipeline 4, and the water outlet interface 72 is connected to the inlet 51. In this embodiment, the second pipeline 16 is designed to be "L"-shaped, including a first flow channel 161 parallel to the rotation axis and a second flow channel 162 perpendicular to the rotation axis, so that the workpiece to be processed can be rotated along the rotation axis of the base 1 while the flushing liquid flows through the first pipeline 9 to the second flow channel 162 of the second pipeline 16 under the action of the pump body, and then flows through the first flow channel 161 to the internal flow channel 5 of the workpiece to be processed 2, and finally sprayed out from the opening 52. The valve body arranged on the connecting channel between the first supply module 8 and the liquid supply part can be selectively opened and closed to selectively choose whether to flush.

[0045] A part of the hydraulic oil supply unit of this embodiment includes an oil supply part, an oil circuit distributor 11a and a third pipeline 10 arranged inside the base 1. The third pipeline 10 and the fourth pipeline 4 are staggered with each other, wherein the third pipeline 10 has an oil inlet 101 and an oil outlet 102, the oil supply part is an oil tank, and the third pipeline 10 connects the output end of the oil supply part with the oil delivery end of the oil cylinder 32, and the oil circuit distributor 11a is arranged on the main seat 13 of the four-axis motor, and its input end is connected with the oil supply part, and its output end is connected with the third pipeline 10 through the oil receiving port 112 of the bracket 12.

[0046] The other part of the hydraulic oil supply unit is integrated with the flushing liquid supply unit, including an oil circuit and water circuit distributor 6a arranged on the tailstock 14 of the four-axis motor. The input end of the oil circuit and water circuit distributor 6a is respectively connected to the oil supply part and the water supply part, and its output end is respectively connected to the third pipeline 10 and the first pipeline 9 through the bracket 12 and the joint 62.

[0047] The working principle of this embodiment is as follows: the workpiece 2 to be processed is placed on the base 1 through the positioning mechanism 5, the oil circuit distributor 11a and the oil-water circuit distributor 6a work, the hydraulic oil enters the third pipeline 10 from the bracket 12, and then enters the oil delivery end of the oil cylinder 32, thereby driving the pressure rod 31 to press the workpiece 2 to be processed; the flushing liquid enters the first pipeline 9 from the bracket 12, and then enters the second pipeline 16 through the fourth pipeline 4, and finally enters the internal flow channel 5 from the inlet 51 in the workpiece 2 to be processed, to clean the aluminum chips, and finally flows out from the opening 52; during this period, the four-axis motor main seat 13 and the four-axis motor tail seat 14 drive the base 1 and the bracket 12 to rotate along the rotation axis, so as to facilitate the processing of each surface of the workpiece 2 to be processed; thereby achieving: the workpiece 2 to be processed can rotate along the rotation axis of the base 1 while allowing the flushing liquid to flow from the first pipeline 9 to the second pipeline to the internal flow channel 5 of the workpiece 2 to be processed and flow out from the opening 52.

Claims

1. A fixture for processing a workpiece, comprising: abutment(1); A positioning mechanism, arranged on the base (1) and used for positioning the workpiece (2) to be processed and completely exposing a processing area of ​​the workpiece (2) to be processed, wherein the processing area is provided with an opening (52) communicating with an internal flow channel (5) of the workpiece (2) to be processed; and A clamping mechanism (3) is arranged on the base (1) and is used to press the workpiece (2) to be processed that is positioned by the positioning mechanism; Features: Also included are: A turning mechanism connected to the base (1) and capable of turning the base (1) to achieve multi-angle processing of the workpiece (2); A flushing liquid supply unit comprises a liquid supply portion, a first supply module (8) mounted on the lower surface of the base (1), and a second supply module (7) mounted on the upper surface of the base (1), wherein the first supply module (8) is provided with a first pipeline (9) connected to the liquid supply portion, and the second supply module (7) is configured to block an inlet (51) and / or an outlet of an internal flow channel (5) in a workpiece to be processed (2), and a second pipeline (16) connected to the first pipeline (9) is provided on the second supply module (7). Correspondingly, a connecting port is provided on the base (1) to connect the first pipeline (9) and the second pipeline (16), thereby achieving: the workpiece to be processed (2) can rotate along the rotation axis of the base (1) while the flushing liquid flows from the first pipeline (9) to the second pipeline (16) to the internal flow channel (5) of the workpiece to be processed (2) and is sprayed out from the opening (52).

2. The fixture for processing a workpiece according to claim 1, characterized in that: The flushing liquid supply unit further comprises a pump body, which is used to pump the flushing liquid from the first pipeline (9) to the second pipeline (16); and The valve body is arranged on the connection channel between the first supply module (8) and the liquid supply part.

3. The fixture for processing a workpiece according to claim 1 or 2, characterized in that: The clamping mechanism (3) comprises: A piston rod (33), wherein the lower end of the piston rod (33) is located inside the oil cylinder (32) and the upper end of the piston rod (33) extends outside the oil cylinder (32); The pressure rod (31) comprises a base end (311) connected to the upper end of the piston rod (33) and an action end (312), and a clamping space for clamping a workpiece (2) to be processed is formed between the action end (312) of the pressure rod (31) and a positioning seat located on the base (1).

4. The fixture for processing a workpiece according to claim 3, characterized in that: The clamping mechanism (3) also includes a hinge seat (34) connected to the middle end of the pressing rod (31).

5. The fixture for processing a workpiece according to claim 4, characterized in that: The first pipeline (9) is arranged parallel to the rotation axis, and the second pipeline (16) is L-shaped and includes a first flow channel (161) parallel to the rotation axis and a second flow channel (162) perpendicular to the rotation axis.

6. The fixture for processing a workpiece according to claim 5, characterized in that: The turning mechanism comprises: A bracket (12) is arranged on both sides of the base (1) and is used to connect the base (1); A driving member is arranged on the support (12) and is used to drive the base (1) and the support (12) to rotate along a rotation axis.

7. The fixture for machining a workpiece according to claim 6, characterized in that: The flushing liquid supply unit comprises a water channel distributor, which is arranged on the driving member, the input end of the water channel distributor is connected to the liquid supply part, and the output end of the water channel distributor is connected to the first pipeline (9) through the bracket (12).

8. The fixture for machining a workpiece according to claim 6, characterized in that: The clamp also includes a hydraulic oil supply unit for inputting hydraulic oil into the oil cylinder (32) of the clamping mechanism (3), the hydraulic oil supply unit including an oil supply portion and a third pipeline (10) arranged inside the base (1), the third pipeline (10) connecting the output end of the oil supply portion with the oil delivery end of the oil cylinder (32).

9. The fixture for machining a workpiece according to claim 8, characterized in that: The hydraulic oil supply unit comprises an oil circuit distributor (11a), the oil circuit distributor (11a) being arranged on the driving member, the input end of the oil circuit distributor (11a) being connected to the oil supply part, and the output end of the oil circuit distributor (11a) being connected to the third pipeline (10) via the bracket (12).

10. The fixture for machining a workpiece according to claim 8, characterized in that: The hydraulic oil supply unit is at least partially integrated with the flushing liquid supply unit, and also includes an oil-water distributor (6a). The oil-water distributor (6a) is arranged on the driving member, and the input end of the oil-water distributor (6a) is respectively connected to the oil supply part and the water supply part, and the output end of the oil-water distributor (6a) is respectively connected to the third pipeline (10) and the first pipeline (9) through the bracket (12).

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