Hydraulic clamp for numerical control machining center

Abstract

The utility model discloses a hydraulic clamp for a numerical control machining center, which relates to the technical field of hydraulic clamps and comprises a bottom plate, two sliding grooves parallelly arranged on the bottom plate, two sliding plates slidably connected in the sliding grooves, a base fixedly connected to the lower end of the bottom plate, a fixing seat fixedly connected to the upper surface of the base, and a hydraulic rod fixedly connected to the upper end of the fixing seat. The output end of the hydraulic rod is fixedly connected with a sleeve, a push rod is slidably connected into the sleeve, the push rod is fixedly connected with a clamping block, a first groove is formed in the clamping block, the clamping block is slidably connected with a sliding rail through the first groove, a clamping mechanism is arranged on the sliding rail, and the upper end of the sleeve is fixedly connected with a driving device. The sleeve pushes the push rod and the clamping block to advance to clamp the workpiece, the sleeve continues to advance the transmission frame and the transmission rod through compression of the spring, the transmission rod pushes the rotating wheel to the middle, multi-position clamping of the workpiece is automatically completed, the first rotating motor drives the clamping arm to rotate, the clamping arm clamps the top of the workpiece, and the workpiece is prevented from tilting during machining.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic clamps, in particular to a hydraulic clamp for a numerical control machining center. Background Art

[0002] Hydraulic clamps for CNC machining centers refer to devices that use hydraulic pressure to fix workpieces. Hydraulic clamps have the characteristics of large clamping force and stable operation. They are widely used in mold manufacturing, mechanical processing and other industries. The development of hydraulic clamps for CNC machining centers plays an important role in improving production efficiency and machining accuracy. Currently, hydraulic clamps for CNC machining centers mostly use two positioning blocks for clamping, which is convenient for clamping irregular-shaped workpieces.

[0003] The existing patent announcement number CN219379852U records a machining fixture for a CNC machining center, which includes a locking screw and a lower pressure plate. The locking screw is used to control the lower pressure plate to achieve stable downward pressure of the two lower pressure plates on the workpiece to avoid warping of the workpiece during machining. However, this machining fixture is not convenient for clamping disc workpieces and irregularly shaped workpieces.

[0004] Based on this, a hydraulic clamp for a CNC machining center is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a hydraulic clamp for a numerical control machining center to solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hydraulic clamp for a CNC machining center comprises a base plate, two sliding grooves are arranged in parallel on the base plate, two sliding plates are slidably connected in the sliding grooves, the lower end of the base plate is fixedly connected to the base, the upper surface of the base is fixedly connected to the fixing seat, the upper end of the fixing seat is fixedly connected to the hydraulic rod, the output end of the hydraulic rod is fixedly connected to the sleeve, the sleeve is slidably connected to a push rod, the push rod is fixedly connected to a clamping block, the clamping block is provided with a first groove, the clamping block is slidably connected to a sliding rail via the first groove, the sliding rail is provided with a clamping mechanism, and the upper end of the sleeve is fixedly connected to a driving device.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional scheme: the clamping mechanism includes sliding seats respectively arranged at both ends of the clamping block, the sliding seats are slidably connected to the sliding rail, the upper end of the sliding seat is provided with a rotating block, the upper end of the rotating block is provided with a second groove, the inside of the second groove is provided with a clamping arm, the side end of the second groove is fixedly connected to the fixed end of the No. 1 rotating motor, the output end of the No. 1 rotating motor is fixedly connected to the clamping arm, and the lower end of the rotating block is fixedly connected to the rotating assembly.

[0010] In an optional solution: the rotating assembly includes a transmission column, the transmission column is fixedly connected to the lower end of the rotating block, the lower end of the transmission column is fixedly connected to the No. 1 bevel gear, the inner wall of the sliding seat is fixedly connected to the fixed end of the No. 2 rotating motor, the output end of the No. 2 rotating motor is fixedly connected to the No. 2 bevel gear, and the No. 2 bevel gear is meshed with the No. 1 bevel gear in the horizontal direction.

[0011] In an optional solution: the driving device includes a spring, which is arranged inside the sleeve, the left end of the spring is fixedly connected to the output end of the hydraulic rod, the right end of the spring is fixedly connected to the base, the upper end of the sleeve is fixedly connected to the transmission frame, the transmission frame is fixedly connected to two transmission rods, the rear end of the rotating block is fixedly connected to the connecting seat, a rotating wheel is provided inside the connecting seat, and the transmission rod and the rotating wheel are in contact with each other.

[0012] In an optional solution: a hydraulic cylinder is provided at the middle position of the upper end of the base plate.

[0013] In an optional solution: a lubricating oil groove is provided inside the sliding rail.

[0014] In an optional solution: a buffer foot pad is provided at the lower end of the base.

[0015] In an optional solution: the transmission rod and the rotating wheel are both made of permanent magnets.

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

[0017] 1. The utility model pushes the sleeve through the hydraulic rod, and the sleeve pushes the push rod and the clamping block forward to clamp the workpiece. The sleeve continues to move the transmission frame and the transmission rod forward through the compression of the spring, and the transmission rod pushes the rotating wheel to the middle, automatically completing the multi-position clamping of the workpiece.

[0018] 2. The utility model drives the clamp arm to rotate through a No. 1 rotating motor, and the clamp arm clamps the top of the workpiece to prevent the workpiece from tilting during processing.

[0019] 3. The utility model provides support for the bottom of the workpiece through the hydraulic cylinder, and provides supporting force for the workpiece in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 The utility model is a schematic structural diagram of the hydraulic rod, the sleeve and the clamping block.

[0022] Figure 3 It is a structural schematic diagram of the sliding rail and the sliding seat of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the rotating block and the sliding seat of the utility model.

[0024] Figure 5 It is a schematic structural diagram of the first helical gear and the second helical gear of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the transmission frame and the transmission rod of the utility model.

[0026] Notes on figure numbers: 101. Bottom plate, 102. Sliding groove, 103. Sliding plate, 104. Hydraulic cylinder, 105. Sliding rail, 106. Base, 107. Fixed seat, 108. Hydraulic rod, 109. Cylinder sleeve, 110. Push rod, 111. First groove, 112. Clamping block, 201. Sliding seat, 202. Rotating block, 203. Connecting seat, 204. Rotating wheel, 205. No. 1 rotating motor, 206. Clamping arm, 207. Second groove, 208. Spring, 301. Transmission column, 302. No. 1 bevel gear, 303. No. 2 bevel gear, 304. No. 2 rotating motor, 401. Transmission frame, 402. Transmission rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Example 1

[0029] In one embodiment, Figure 1-Figure 3As shown, a hydraulic clamp for a CNC machining center includes a base plate 101, two sliding grooves 102 are parallelly arranged on the base plate 101, two sliding plates 103 are slidably connected in the sliding grooves 102, the lower end of the base plate 101 is fixedly connected to a base 106, the upper surface of the base 106 is fixedly connected to a fixing seat 107, the upper end of the fixing seat 107 is fixedly connected to a hydraulic rod 108, the output end of the hydraulic rod 108 is fixedly connected to a sleeve 109, a push rod 110 is slidably connected in the sleeve 109, the push rod 110 is fixedly connected to a clamping block 112, a first groove 111 is arranged on the clamping block 112, the clamping block 112 is slidably connected to a sliding rail 105 through the first groove 111, and the sliding rail 105 is provided with The clamping mechanism comprises a driving device fixedly connected to the upper end of the sleeve 109, which provides support through the bottom plate 101, satisfies the condition of horizontal movement of the sliding plate 103 through the sliding groove 102, provides support for the entire hydraulic clamp for the data processing center through the base 106, and a buffering foot pad is provided at the lower end of the base 106 to provide buffering for the hydraulic clamp for the data processing center. The upper end of the base 106 is fixedly connected to the fixed seat 107, and the upper end of the fixed seat 107 is fixedly connected to the hydraulic rod 108, which provides power through the hydraulic rod 108, and the hydraulic rod 108 pushes the sleeve 109 and the push rod 110 to move in the horizontal direction, and the push rod 110 pushes the push block 112 to move, and the two push blocks 112 clamp the workpiece in the horizontal direction, providing a horizontal clamping force for the workpiece;

[0030] In one embodiment, Figure 1 , Figure 3 and Figure 4 As shown, the clamping mechanism includes sliding seats 201 respectively arranged at both ends of the clamping block 112, the sliding seats 201 are slidably connected to the sliding rail 105, the upper end of the sliding seat 201 is provided with a rotating block 202, the upper end of the rotating block 202 is provided with a second groove 207, the second groove 207 is provided with a clamping arm 206, the side end of the second groove 207 is fixedly connected to the fixed end of the No. 1 rotating motor 205, the output end of the No. 1 rotating motor 205 is fixedly connected to the clamping arm 206, the lower end of the rotating block 202 is fixedly connected to the rotating assembly, sliding on the sliding rail 105 through two sliding seats 201, the No. 1 rotating motor 205 provides power, the clamping arm 206 is fixedly connected to the output end of the No. 1 rotating motor 205, the clamping arm 206 rotates with the No. 1 rotating motor 205, and the four clamping arms 206 provide vertical support force for the workpiece above the workpiece;

[0031] In one embodiment, Figure 5As shown, the rotating assembly includes a transmission column 301, the transmission column 301 is fixedly connected to the lower end of the rotating block 202, the lower end of the transmission column 301 is fixedly connected to the first bevel gear 302, the inner wall of the sliding seat 201 is fixedly connected to the fixed end of the second rotating motor 304, the output end of the second rotating motor 304 is fixedly connected to the second bevel gear 303, the second bevel gear 303 is meshed with the first bevel gear 302 in the horizontal direction, and the power is provided by the second rotating motor 304, the second rotating motor 304 drives the second bevel gear 303 to rotate, the second bevel gear 303 is meshed with the first bevel gear 302, the first bevel gear 302 rotates following the second bevel gear 303, the transmission column 301 rotates following the first bevel gear 302, the rotating block 202 rotates following the transmission column 301, the angle of the clamping arm 206 is adjusted, and the conditions for clamping workpieces of different shapes are met;

[0032] Example 2

[0033] In one embodiment, Figure 6 As shown, the driving device includes a spring 208, which is arranged inside the sleeve 109. The left end of the spring 208 is fixedly connected to the output end of the hydraulic rod 108, and the right end of the spring 208 is fixedly connected to the base 106. The upper end of the sleeve 109 is fixedly connected to the transmission frame 401, and the transmission frame 401 is fixedly connected to two transmission rods 402. The rear end of the rotating block 202 is fixedly connected to the connecting seat 203. A rotating wheel 204 is provided inside the connecting seat 203. The transmission rod 402 and the rotating wheel 204 are in contact with each other. Power is provided by the hydraulic rod 108. When the clamping block 112 clamps the workpiece, the hydraulic rod 108 continues to push the sleeve 109, and the spring 208 contracts in the horizontal direction. , providing space for the sleeve 109 to move. During the movement of the sleeve 109, the transmission frame 401 is driven to move horizontally, the transmission frame 401 drives the transmission rod 402 to move, the transmission rod 402 drives the rotating wheel 204 to move, and the rotating wheel 204 drives the sliding seat 201 to move toward the middle inside the sliding rail 105, automatically completing the adjustment of the clamping and speeding up the work progress. The transmission rod 402 and the rotating wheel 204 are both made of permanent magnets. During the resetting process of the transmission rod 402, the transmission rod 402 drives the rotating wheel 204 to move to both sides on the sliding rail 105, and the rotating wheel 204 drives the sliding seat 201 to move, automatically resetting the sliding seat 201, reducing the operation steps and facilitating and quickly resetting.

[0034] The above embodiment discloses a hydraulic clamp for a CNC machining center, wherein, by starting the hydraulic rod 108, the hydraulic rod 108 pushes the sleeve 109 to move in the horizontal direction, the sleeve 109 pushes the spring 208 and the push rod 110 to move in the horizontal direction, the push rod 110 applies a force in the horizontal direction to the clamp block 112, the clamp block 112 translates on the sliding plate 103 provided on the sliding groove 102 through the sliding rail 105, and the two clamp blocks 112 clamp the workpiece at the left and right ends. When the clamp block 112 completes the clamping, the sleeve 109 is released due to the spring 208. The contraction continues to move forward, and the transmission frame 401 fixedly connected to the sleeve 109 moves along with the sleeve 109. The transmission rod 402 fixedly connected to the transmission frame 401 drives the rotating wheel 204 to move toward the middle, and the rotating wheel 204 drives the sliding seat 201 to move toward the middle on the sliding rail 105 to clamp the object. When the sliding seat 201 moves to the corresponding position, the second rotating motor 304 is started, and the second rotating motor 304 drives the second bevel gear 303 to rotate. The second bevel gear 303 is horizontally aligned with the first bevel gear 302. The first bevel gear 302 rotates following the second bevel gear 303, the transmission column 301 rotates following the first bevel gear 302, and the rotating block 202 rotates following the transmission column 301 to complete the adjustment of the angle of the clamp arm 206. After the angle adjustment of the clamp arm 206 is completed, the first rotating motor 205 is started, and the clamp arm 206 is fixedly connected to the output end of the first rotating motor 205. The clamp arm 206 rotates following the first rotating motor 205. The four clamp arms 206 provide vertical support for the workpiece above the workpiece. The hydraulic cylinder 1 04 provides an upward supporting force for the workpiece. When the workpiece is processed, the hydraulic rod 108 is retracted. The retraction of the hydraulic rod 108 drives the sleeve 109 and the transmission frame 401 to reset. The transmission rod 402 and the rotating wheel 204 on the transmission frame 401 are both made of permanent magnets. During the resetting process of the transmission rod 402, the transmission rod 402 drives the rotating wheel 204 to move to both sides on the sliding rail 105, and the rotating wheel 204 drives the sliding seat 201 to move, automatically resetting the sliding seat 201, reducing the operating steps and facilitating quick resetting.

[0035] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A hydraulic clamp for a numerical control machining center, comprising a base plate (101), wherein two sliding grooves (102) are arranged in parallel on the base plate (101), wherein two sliding plates (103) are slidably connected in the sliding grooves (102), wherein the lower end of the base plate (101) is fixedly connected to a base (106), wherein the upper surface of the base (106) is fixedly connected to a fixing seat (107), wherein the upper end of the fixing seat (107) is fixedly connected to a hydraulic rod (108), wherein the output end of the hydraulic rod (108) is fixedly connected to a sleeve (109), wherein the sleeve (109) is slidably connected to a push rod (110), wherein the push rod (110) is fixedly connected to a clamping block (112), wherein a first groove (111) is arranged on the clamping block (112), wherein the clamping block (112) is slidably connected to a sliding rail (105) through the first groove (111), wherein the clamping block (112) is slidably connected to a sliding rail (105), wherein the hydraulic rod (108) is fixedly connected to a sleeve (109) at its output end, wherein the sleeve (109) is slidably connected to a push rod (110), wherein the push rod (110) is fixedly connected to a clamping block (112), wherein the clamping block (112) is provided with a first groove (111), wherein the clamping block (112) is slidably connected to a sliding rail (105) through the first groove (111), wherein the hydraulic rod (108) is fixedly connected to a sleeve (109) at its output end, wherein the sleeve (109) is slidably connected to a push rod (110), wherein the push rod (110) is fixedly connected to a clamping block (112), wherein the clamping block (11 The sliding rail (105) is provided with a clamping mechanism, and the upper end of the sleeve (109) is fixedly connected to a driving device.

2. The hydraulic clamp for a CNC machining center according to claim 1, characterized in that: The clamping mechanism comprises a sliding seat (201) respectively arranged at both ends of the clamping block (112); the sliding seat (201) is slidably connected to the sliding rail (105); a rotating block (202) is arranged at the upper end of the sliding seat (201); a second groove (207) is arranged at the upper end of the rotating block (202); a clamping arm (206) is arranged inside the second groove (207); a side end of the second groove (207) is fixedly connected to a fixed end of a first rotating motor (205); an output end of the first rotating motor (205) is fixedly connected to the clamping arm (206); and a lower end of the rotating block (202) is fixedly connected to a rotating assembly.

3. The hydraulic clamp for a CNC machining center according to claim 2, characterized in that: The rotating assembly comprises a transmission column (301), the transmission column (301) is fixedly connected to the lower end of the rotating block (202), the lower end of the transmission column (301) is fixedly connected to the first bevel gear (302), the inner wall of the sliding seat (201) is fixedly connected to the fixed end of the second rotating motor (304), the output end of the second rotating motor (304) is fixedly connected to the second bevel gear (303), and the second bevel gear (303) is meshed with the first bevel gear (302) in the horizontal direction.

4. The hydraulic clamp for a CNC machining center according to claim 2, characterized in that: The driving device comprises a spring (208), wherein the spring (208) is arranged inside a sleeve (109), the left end of the spring (208) is fixedly connected to the output end of a hydraulic rod (108), the right end of the spring (208) is fixedly connected to a base (106), the upper end of the sleeve (109) is fixedly connected to a transmission frame (401), the transmission frame (401) is fixedly connected to two transmission rods (402), the rear end of the rotating block (202) is fixedly connected to a connecting seat (203), a rotating wheel (204) is arranged inside the connecting seat (203), and the transmission rod (402) and the rotating wheel (204) are in contact with each other.

5. The hydraulic clamp for a CNC machining center according to claim 1, characterized in that: A hydraulic cylinder (104) is provided at the middle position of the upper end of the bottom plate (101).

6. The hydraulic clamp for a CNC machining center according to claim 1, characterized in that: A lubricating oil groove is provided inside the sliding rail (105).

7. The hydraulic clamp for a CNC machining center according to claim 1, characterized in that: A cushioning pad is provided at the lower end of the base (106).

8. The hydraulic clamp for a CNC machining center according to claim 4, characterized in that: The transmission rod (402) and the rotating wheel (204) are both made of permanent magnets.

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