Water cooling structure for electromagnetic clamp

Abstract

The utility model belongs to the technical field of electromagnetic clamps, and provides a water cooling structure for an electromagnetic clamp, which comprises a moving plate and a clamp assembly fixedly arranged on the moving plate, and a cooling piece is arranged on the inner side of the clamp assembly. A fixed plate is arranged below the movable plate, and an elastic piece is further arranged between the movable plate and the fixed plate; a first touch point and a second touch point are respectively arranged on the opposite surfaces of the movable plate and the fixed plate; a circulating pump is further fixedly installed along the upper end face of the fixing plate, the first touch point is electrically connected with the circulating pump, and a water outlet of the circulating pump corresponds to the cooling part and is used for transmitting cold water into the cooling part for heat dissipation; a heat dissipation cavity, a circulating pump and the like are arranged, the heat dissipation cavity is formed in the periphery of a coil, cooling liquid is poured into the heat dissipation cavity through the circulating pump, heat in a clamp assembly is taken away, heat accumulation is prevented from influencing the coil, and unstable suction force is avoided; and the heat dissipation cavity is of a closed structure, so that water seepage can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic fixtures, and particularly relates to a water-cooling structure for an electromagnetic fixture. Background Art

[0002] An electromagnetic fixture is a device that uses electromagnetic force to clamp workpieces. It generates a magnetic field after the electromagnetic coil is energized, causing a strong suction force between the magnetic poles of the fixture and the workpiece to be processed (usually ferromagnetic material), thereby firmly fixing the workpiece in a predetermined position.

[0003] Electromagnetic fixtures usually need to suck and fix workpieces and transport them to the laser welding point for welding by a laser welding arm. During welding, the fixture will also be affected by the heat of the welding point. If the welding time is too long, the temperature of the fixture will be too high. Since the electromagnetic fixture sucks and fixes the workpiece through magnetic suction, the magnitude of the magnetic suction force is affected by the magnetic flux of the coil, and high temperature will affect the magnetic flux and cause the suction force to become unstable. Therefore, we propose a water-cooling structure to solve the above problems. Content of the Utility Model

[0004] The utility model provides a water-cooling structure for an electromagnetic fixture, which solves the problems in the prior art.

[0005] The technical solution of the utility model is realized as follows:

[0006] A water-cooling structure for an electromagnetic fixture includes a moving plate, a fixture component fixedly arranged on the moving plate, and a cooling member arranged inside the fixture component;

[0007] A fixed plate is arranged below the moving plate, and an elastic member is also arranged between the moving plate and the fixed plate;

[0008] A first touch point and a second touch point are respectively arranged on the opposite surfaces of the moving plate and the fixed plate;

[0009] A circulation pump is fixedly installed along the upper end surface of the fixed plate. The first touch point and the circulation pump are electrically connected, and the water outlet of the circulation pump corresponds to the cooling member, for transporting cold water into the cooling member for heat dissipation.

[0010] A fixed column is fixedly arranged on the upper end surface of the fixed plate. The fixed column passes through the moving plate, enabling the moving plate to slide along the fixed column.

[0011] Further, the elastic member is a spring, and the upper and lower ends of the spring respectively abut against the opposite surfaces of the fixed plate and the moving plate. The spring is sleeved outside the fixed column.

[0012] Further, a connecting plate is fixedly installed at the upper end of the fixed column, and the connecting plate is used for installation on a moving member.

[0013] Further, the fixture assembly includes a housing, a coil is further disposed inside the housing, a core is further disposed inside the coil, and the core is exposed outside the housing for contacting the workpiece. The cooling member is disposed at the gap between the housing and the coil. The cooling member is a heat dissipation cavity, and a first connection pipe and a second connection pipe are respectively disposed on the heat dissipation cavity. The water outlet of the circulation pump is connected to the first connection pipe for water inlet, and the second connection pipe is for water outlet.

[0014] Further, the heat dissipation cavity is a hollow structure, and a coolant is stored inside the heat dissipation cavity.

[0015] Further, a third connection pipe is disposed on the water inlet of the circulation pump, and the third connection pipe is used for water inlet to the circulation pump.

[0016] After adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, by providing a heat dissipation cavity and a circulation pump, etc., the heat dissipation cavity is disposed on the outer periphery of the coil. The coolant is poured into the heat dissipation cavity through the circulation pump to take away the heat inside the fixture assembly, preventing heat accumulation from affecting the coil and avoiding unstable suction; and the heat dissipation cavity is a closed structure, which can prevent water seepage;

[0018] In the present utility model, by providing a first touch point and a second touch point, when a workpiece is clamped on the fixture assembly, the fixture assembly moves downward under the gravity of the workpiece, so that the first touch point and the second touch point are in contact with each other, and the circulation pump is turned on. The circulation pump will only start when there is a workpiece, and will be turned off when there is no workpiece, without heat dissipation, thus prolonging the service life of the circulation pump. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a front view structural schematic diagram of a water-cooling structure for an electromagnetic fixture of the present utility model;

[0021] Figure 2 It is a cross-sectional structural schematic diagram of the clamping assembly.

[0022] In the figure, 10 is a fixture assembly; 101 is a housing; 102 is a coil; 103 is a heat dissipation cavity; 104 is an iron core; 105 is a coolant; 20 is a first connecting pipe; 21 is a second connecting pipe; 22 is a third connecting pipe; 30 is a circulation pump; 40 is a moving plate; 401 is a first touch point; 41 is a fixed plate; 411 is a second touch point; 42 is a spring; 43 is a fixed column; 44 is a connecting plate. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment: As Figure 1-2 shown, a water-cooling structure for an electromagnetic fixture includes a moving plate 40 and a fixture assembly 10 fixedly arranged on the lower end surface of the moving plate 40. A cooling member is arranged inside the fixture assembly 10;

[0025] A fixed plate 41 is arranged below the moving plate 40, and an elastic member is also arranged between the moving plate 40 and the fixed plate 41;

[0026] A circulation pump 30 is fixedly installed along the upper end surface of the fixed plate 41. The water outlet of the circulation pump 30 corresponds to the cooling member, and is used to transmit cold water to the cooling member for heat dissipation;

[0027] When it is necessary to suck and hold a workpiece, the fixture assembly 10 is energized. Further, as Figure 2 shown, the outermost housing 101 of the fixture assembly 10, a coil 102 is also arranged inside the housing 101, and an iron core 104 is also arranged inside the coil 102. The iron core 104 is exposed outside the housing 101 for contacting the workpiece. When the coil 102 is energized, the iron core 104 generates a magnetic attraction force to adsorb the workpiece (the workpiece is a material that can be magnetically attracted);

[0028] Further, as Figure 1As shown, a fixing column 43 is also fixedly arranged on the upper end surface of the fixing plate 41. The fixing column 43 passes through the moving plate 40, enabling the moving plate 40 to slide along the fixing column 43. Moreover, a connecting plate 44 is fixedly installed at the upper end of the fixing column 43. The connecting plate 44 is used to be installed on a moving part, and the moving part (not shown in the figure) drives the fixture assembly 10 to move, moving the workpiece to the welding position for welding. During welding, since the coil 102 is energized to generate heat and long-term welding will also cause the fixture assembly 10 to be heated, in order to avoid the coil 102 being affected by high temperature, it is necessary to dissipate heat inside the fixture assembly 10;

[0029] Further, as Figure 2 shown, the cooling part is arranged at the gap between the housing 101 and the coil 102. The cooling part is a heat dissipation cavity 103. A first connecting pipe 20 and a second connecting pipe 21 are respectively arranged on the heat dissipation cavity 103. Among them, the heat dissipation cavity 103 is a hollow structure, and a coolant 105 is stored inside the heat dissipation cavity 103; The water outlet of the circulation pump 30 is connected to the first connecting pipe 20 for water inlet, and the second connecting pipe 21 is for water outlet. The end of the second connecting pipe 21 is connected to the Figure 1 shown water tank. The second connecting pipe 21 is responsible for returning the coolant 105 to the water tank. And a third connecting pipe 22 is arranged at the water inlet of the circulation pump 30, and the other end of the third connecting pipe 22 is also connected to the water tank, used for feeding the coolant 105 in the water tank into the circulation pump 30, thereby dissipating heat inside the fixture assembly 10;

[0030] Further, as Figure 1 shown, in order to enable the fixture assembly 10 to dissipate heat during operation, when a workpiece is sucked and held on the fixture assembly 10, the fixture assembly 10 moves downward under the gravity of the workpiece, and the moving plate 40 fixedly connected to the fixture assembly 10 moves downward. Since a first touch point 401 and a second touch point 411 are respectively arranged on the opposite surfaces of the moving plate 40 and the fixing plate 41, the first touch point 401 and the second touch point 411 are in contact with each other, and the first touch point 401 and the circulation pump 30 are electrically connected. At this time, the circulation pump 30 starts to input the water in the water tank into the heat dissipation cavity 103, thereby dissipating heat;

[0031] Further, as Figure 1 shown, when the fixture assembly 10 does not clamp the workpiece, the elastic part pushes the moving plate 40 upward, causing the separation between the first touch point 401 and the second touch point 411, and the circulation pump 30 stops working;

[0032] Further, as Figure 1 shown, the elastic part is a spring 42. The upper and lower ends of the spring 42 respectively abut against the opposite surfaces of the fixing plate 41 and the moving plate 40, and the spring 42 is sleeved outside the fixing column 43.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water-cooling structure for an electromagnetic clamp, characterized in that: It includes a moving plate, a fixture assembly (10) fixedly arranged on the moving plate, and a cooling member is arranged inside the fixture assembly (10); A fixed plate (41) is arranged below the moving plate, and an elastic member is also arranged between the moving plate and the fixed plate (41); A first touch point (401) and a second touch point (411) are respectively arranged on the opposite surfaces of the moving plate and the fixed plate (41); A circulation pump (30) is fixedly installed along the upper end surface of the fixed plate. The first touch point (401) and the circulation pump (30) are electrically connected. The water outlet of the circulation pump (30) corresponds to the cooling member, and is used to transfer cold water into the cooling member for heat dissipation.

2. The water-cooling structure of the electromagnetic clamp according to claim 1 is characterized in that: A fixed column (43) is fixedly arranged on the upper end surface of the fixed plate (41). The fixed column (43) passes through the moving plate, so that the moving plate can slide along the fixed column (43).

3. The water-cooling structure for an electromagnetic fixture according to claim 2, characterized in that The elastic member is a spring (42). The upper and lower ends of the spring (42) respectively abut against the opposite surfaces of the fixed plate (41) and the moving plate. The spring (42) is sleeved outside the fixed column (43).

4. The water-cooling structure for an electromagnetic fixture according to claim 2, characterized in that, A connecting plate (44) is fixedly installed at the upper end of the fixed column (43). The connecting plate (44) is used for installation on a moving member.

5. The water cooling structure of the electromagnetic clamp according to claim 1 is characterized in that: The fixture assembly (10) includes a housing (101). A coil (102) is arranged inside the housing (101). An iron core (104) is arranged inside the coil (102). The iron core (104) is exposed outside the housing (101) for contacting with a workpiece. The cooling member is arranged in the gap between the housing (101) and the coil (102). The cooling member is a heat dissipation cavity (103). A first connecting pipe (20) and a second connecting pipe (21) are respectively arranged on the heat dissipation cavity (103). The water outlet of the circulation pump (30) is connected to the first connecting pipe (20) for water inlet, and the second connecting pipe (21) is used for water outlet.

6. The water-cooling structure for an electromagnetic fixture according to claim 5, characterized in that, The heat dissipation cavity (103) is a hollow structure, and a coolant (105) is stored inside the heat dissipation cavity (103).

7. The water-cooling structure for an electromagnetic fixture according to claim 1, characterized in that, A third connecting pipe (22) is arranged at the water inlet of the circulation pump (30). The third connecting pipe (22) is used for water inlet to the circulation pump (30).

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