A clamp mold

Abstract

The utility model relates to a kind of die holders. It includes seat body and oil cylinder, seat body and oil cylinder are detachably connected, oil cylinder is provided with accommodating cavity, piston is provided in accommodating cavity, piston includes piston rod and piston head, piston head divides accommodating cavity and forms first chamber and second chamber, first oil hole and second oil hole are provided on oil cylinder, first oil hole is correspondingly arranged with first chamber, second oil hole is correspondingly arranged with second chamber, the opening end of accommodating cavity is equipped with cylinder cover, cylinder cover is provided with first through-hole, one end of piston rod passes through the through-hole of cylinder cover and is connected with connecting shaft, the connecting shaft is detachably connected with slide tongue, seat body is provided with second through-hole, slide tongue is located in second through-hole, the first end of slide tongue is provided with pressure exerting structure, and the piston rod is used to drive slide tongue to move linearly along second through-hole. The die holder is easy to assemble, and the replacement of parts is also convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of positioning molds, and in particular to mold clamps. Background Technology

[0002] A mold clamp is a device used to clamp a mold. For example, Chinese Patent 202323379369.1 discloses a mold clamp that includes a base, a sleeve, a piston, and a pressure plate. The pressure plate is connected to the base via a rotating shaft. One end of the pressure plate near the mold is designated as the clamping end, and the other end is designated as the fixing end. The base has a receiving chamber and a first oil hole. The sleeve includes a sleeve fixing part and a sleeve head. A second oil hole is provided on the sleeve head. The sleeve fixing part is installed in the receiving chamber. The piston includes a piston head and a piston rod. The piston head extends into the sleeve fixing part and slides in cooperation with the sleeve fixing part. An upper hydraulic chamber is formed between the piston head and the sleeve. The piston rod is connected to the fixing end of the pressure plate via a rotating shaft.

[0003] The existing clamping device structure is very inconvenient to assemble and replace parts because the pressure plate and piston are both located on the same base, and the pressure plate needs to be connected to the base via a shaft. The pressure plate and piston also need to be connected via a shaft. Utility Model Content

[0004] Based on this, a mold clamping device is provided. This mold clamping device is easy to assemble and also facilitates the replacement of parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mold clamping device includes a base and a hydraulic cylinder, which are detachably connected. The hydraulic cylinder has a receiving cavity, and a piston is disposed within the receiving cavity. The piston includes a piston rod and a piston head, which divides the receiving cavity into a first chamber and a second chamber. The hydraulic cylinder has a first oil hole and a second oil hole, which are corresponding to the first chamber and the second oil hole, respectively. A cylinder cover is installed at the open end of the receiving cavity, and the cylinder cover has a first through hole. One end of the piston rod passes through the first through hole of the cylinder cover and is connected to a connecting shaft. The connecting shaft is detachably connected to a sliding tongue. The base has a second through hole, and the sliding tongue is located in the second through hole. A pressure-applying structure is provided at the first end of the sliding tongue. The piston rod is used to drive the sliding tongue to move linearly along the second through hole.

[0007] In one embodiment, the connecting shaft includes a threaded portion, and the piston rod is provided with a threaded hole that is threadedly connected to the threaded portion. The connecting shaft also includes a first block, a middle portion, and a second block. The first block, the middle portion, and the second block together form an annular groove. The second end of the sliding tongue is provided with a cavity, and a partition block is provided in the cavity. The partition block divides the cavity into a first cavity and a second cavity. A U-shaped groove is provided on the partition block. The middle portion is located in the U-shaped groove, the first block is located in the first cavity, and the second block is located in the second cavity.

[0008] In one embodiment, the pressure-applying structure includes an inclined surface.

[0009] In one embodiment, the second end of the tongue is provided with a groove, the seat is provided with a first sensor and a second sensor, the tongue has a first position and a second position, the first sensor is used to detect the first position of the tongue, and the second sensor is used to detect the second position of the tongue.

[0010] In one embodiment, the base is provided with a mounting groove, and a first mounting hole and a second mounting hole are provided on one side of the mounting groove. The first mounting hole is provided with the first sensor, and the second mounting hole is provided with the second sensor. The base is also provided with a sensor cover plate, which covers one side of the mounting groove.

[0011] In one embodiment, the second through hole on the base is provided along the Y direction, and the base is also provided with a plurality of mounting through holes, each of which is provided along the X direction.

[0012] In one embodiment, the cylinder cover is threadedly connected to the first through hole, and the end face of the cylinder cover is provided with a countersunk hole.

[0013] In one embodiment, the cylinder cover has several through holes at one end of the first chamber.

[0014] In one embodiment, the base and the cylinder are detachably connected by bolts, and the end face of one end of the base is in contact with the end face of one end of the cylinder.

[0015] In one embodiment, the seat is cubic in shape, and the cylinder is cubic in shape.

[0016] The beneficial effects of this application are as follows:

[0017] 1. The base and cylinder of this application are detachably connected. The base can be installed on the frame of the corresponding machine. When it is necessary to repair or replace the cylinder, piston, or sliding tongue, the cylinder is separated from the base, while the base remains on the machine frame. The cylinder, along with the piston and sliding tongue, is then separated from the base. Since the sliding tongue moves linearly within the second through hole of the base, it is easily separated from the base. These components can then be repaired or replaced; for example, a new cylinder and piston can be replaced. The new piston is then connected to the sliding tongue, and finally, they are all installed on the base. The entire process is quick and convenient.

[0018] 2. The pressure-applying structure includes an inclined surface, which is beneficial for the secure positioning of the mold.

[0019] 3. A groove is provided at the second end of the sliding tongue. The base is equipped with a first sensor and a second sensor. The sliding tongue has a first position and a second position. The first sensor is used to detect the first position of the sliding tongue, and the second sensor is used to detect the second position of the sliding tongue. This configuration ensures that no signal is generated when the sensor is facing the groove, but a signal is generated when the sensor is facing other positions of the sliding tongue. This allows for the detection of both positions of the sliding tongue. By detecting both positions, precise control of the sliding tongue's movement can be achieved, ensuring accurate positioning of the mold by the sliding tongue.

[0020] 4. The sensor cover helps protect the sensor, preventing it from being exposed. The sensor cover seals one side of the mounting slot, while leaving a gap between the sensor cover and the other side of the mounting slot for wiring to pass through.

[0021] 5. The split structure of this application can greatly reduce the difficulty of processing.

[0022] 6. Since the base and the cylinder are detachable, this application allows for the storage of standard stock for the independent cylinder at the rear end. When clamping molds of different thicknesses, it is only necessary to replace the front base and the sliding tongue according to the mold size.

[0023] 7. When clamping the mold on the inclined surface, the sliding tongue is subjected to force in the direction perpendicular to the axial direction in addition to the axial force. Since this application is a split type, the force on the sliding tongue will not cause the piston to scrape against the cylinder wall of the oil cylinder, nor will it cause the piston to jam. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a clamping device according to an embodiment of this application.

[0025] Figure 2 This is an exploded view of the clamping device according to an embodiment of this application.

[0026] Figure 3This is a schematic diagram of the separator block of the sliding tongue according to an embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the inclined surface of the tongue in an embodiment of this application.

[0028] Figure 5 This is a schematic diagram showing the sliding tongue connected to the connecting shaft in an embodiment of this application.

[0029] Figure 6 This is a cross-sectional view of the cylinder and piston according to an embodiment of this application.

[0030] Figure 7 This is a schematic diagram of the cylinder head according to an embodiment of this application.

[0031] Figure 8 This is a schematic diagram of a piston according to an embodiment of this application.

[0032] Figure 9 This is a schematic diagram of the connecting shaft in an embodiment of this application.

[0033] Figure 10 This is a schematic diagram of the base of an embodiment of this application.

[0034] in:

[0035] 101. Seat; 102. Hydraulic cylinder; 103. Piston; 1031. Piston head; 1032. Piston rod; 1033. Threaded hole; 104. First chamber; 105. Second chamber; 106. First oil hole; 107. Second oil hole; 108. Hydraulic cylinder cover; 1081. First through hole; 1082. Through hole; 1083. Countersunk hole; 109. Connecting shaft; 110. Second through hole; 1111. Inclined surface; 1112. Axially extending plane; 1113. Radially extending plane; 111. Slippery tongue; 1092. First block; 1093. Middle part; 1094. Second block; 1091. Threaded part;

[0036] 1114. Separator block; 1115. First cavity; 1116. Second cavity; 1117. U-shaped groove; 1118. Groove;

[0037] 112. Mounting slot; 113. First mounting hole; 114. Second mounting hole; 115. Sensor cover plate; 116. Gap; 117. Mounting through hole. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0039] like Figure 1 and Figure 2As shown, an embodiment of this application provides a mold clamping device, which includes a base 101 and a hydraulic cylinder 102, wherein the base 101 and the hydraulic cylinder 102 are detachably connected. Figure 6 As shown, the hydraulic cylinder 102 has a receiving cavity, and a piston 103 is disposed within the receiving cavity. The piston 103 includes a piston rod 1032 and a piston head 1031. The piston head 1031 divides the receiving cavity into a first chamber 104 and a second chamber 105. The hydraulic cylinder 102 is provided with a first oil hole 106 and a second oil hole 107. The first oil hole 106 is correspondingly disposed with the first chamber 104, and the second oil hole 107 is correspondingly disposed with the second chamber 105. The hydraulic cylinder is installed at the open end of the receiving cavity. The cylinder cover 108 has a first through hole 1081. One end of the piston rod 1032 passes through the first through hole 1081 of the cylinder cover 108 and is connected to the connecting shaft 109. The connecting shaft 109 is detachably connected to the sliding tongue 111. The seat 101 has a second through hole 110. The sliding tongue 111 is located in the second through hole 110. The first end of the sliding tongue 111 is provided with a pressure-applying structure. The piston rod 1032 is used to drive the sliding tongue 111 to move linearly along the second through hole 110.

[0040] Specifically, oil is injected into the second oil hole 107, which is connected to the second chamber 105. The piston head 1031 of the piston 103 is pushed by the oil pressure, causing the piston 103 to move. This, in turn, drives the connecting shaft 109 to move via the piston rod 1032. The connecting shaft 109 then drives the sliding tongue 111 to move axially along the second through hole 110. The first end of the sliding tongue 111 extends out of the second through hole 110 and moves toward the corresponding position of the mold. This applies pressure to the mold through the pressure-applying structure, thus positioning the mold. When oil is injected into the first oil hole 106, which is connected to the first chamber 104, the piston head 1031 of the piston 103 is pushed by the oil pressure, causing the second oil hole 107 to return oil. This causes the piston rod 1032 to retract, and also causes the sliding tongue 111 to retract.

[0041] Understandably, in order to fix the mold, multiple clamping devices of this application are usually used at the same time to position the mold at different locations.

[0042] In one embodiment, the pressure-applying structure includes an inclined surface 1111. For example... Figure 4 As shown, for example, the tongue 111 is approximately cylindrical in shape, and the pressure-applying structure includes a plane 1112 extending axially along the tongue 111, an inclined surface 1111, and a plane 1113 extending radially along the tongue 111.

[0043] Specifically, the corresponding position of the mold is also provided with a corresponding inclined surface so as to cooperate with the inclined surface 1111 of the sliding tongue 111.

[0044] In one embodiment, such as Figure 1 and Figure 2 As shown, the seat 101 is cubic in shape, and the hydraulic cylinder 102 is cubic in shape. The seat 101 and the hydraulic cylinder 102 are detachably connected by bolts, and one end face of the seat 101 is in contact with one end face of the hydraulic cylinder 102.

[0045] Specifically, when disassembly is required, loosen the bolts to separate the seat 101 from the cylinder 102. Since the sliding tongue 111 is connected to the connecting shaft 109, the sliding tongue 111 can be pulled out from the second through hole 110 of the seat 101 along with the connecting shaft 109. Because the sliding tongue 111 and the connecting shaft 109 are detachably connected, the sliding tongue 111 can be separated from the connecting shaft 109. This allows for the replacement of a new sliding tongue 111, or a new cylinder 102 and piston 103.

[0046] In one embodiment, the connecting shaft 109 includes a threaded portion 1091, and the piston rod 1032 is provided with a threaded hole 1033 that is threadedly connected to the threaded portion 1091. This arrangement facilitates the connection of the connecting shaft 109 and the piston rod 1032, and also facilitates disassembly. The connecting shaft 109 also includes a first block 1092, a middle portion 1093, and a second block 1094. The first block 1092, the middle portion 1093, and the second block 1094 together form an annular groove. The second end of the sliding tongue 111 is provided with a cavity, and a partition block 1114 is provided in the cavity. The partition block 1114 divides the cavity into a first cavity 1115 and a second cavity 1116. A U-shaped groove 1117 is provided on the partition block 1114. The middle portion 1093 is located in the U-shaped groove 1117, the first block 1092 is located in the first cavity 1115, and the second block 1094 is located in the second cavity 1116. This configuration facilitates connecting the connecting shaft 109 to the sliding tongue 111, and also facilitates separating the sliding tongue 111 from the connecting shaft 109. For example, moving the sliding tongue 111 away from the connecting shaft 109 will separate the sliding tongue 111 from the connecting shaft 109.

[0047] In one embodiment, the second end of the tongue 111 is provided with a groove 1118, the seat 101 is provided with a first sensor and a second sensor, the tongue 111 has a first position and a second position, the first sensor is used to detect the first position of the tongue 111, and the second sensor is used to detect the second position of the tongue 111.

[0048] Specifically, both the first and second sensors can be proximity switches. The first sensor detects the position of the slider 111 after it extends, and the second sensor detects the position of the slider 111 after it retracts. No signal is generated when the sensor is aligned with the groove 1118 at the second end of the slider 111, but a signal is generated when the sensor is aligned with other positions of the slider 111.

[0049] Based on the above, in one embodiment, the base 101 is provided with a mounting groove 112, and a first mounting hole 113 and a second mounting hole 114 are provided on one side of the mounting groove 112. The first mounting hole 113 is provided with the first sensor, and the second mounting hole 114 is provided with the second sensor. The base 101 is also provided with a sensor cover plate 115, which covers one side of the mounting groove 112.

[0050] Specifically, a gap 116 is left between the sensor cover 115 and the other side of the mounting groove 112, through which the transmission lines of each sensor can pass.

[0051] In one embodiment, the second through hole 110 on the base 101 is arranged along the Y direction, and the base 101 is also provided with a plurality of mounting through holes 117, each of which is arranged along the X direction.

[0052] Specifically, bolts can be installed in the aforementioned mounting through hole 117 to fix the base 101 to the machine frame.

[0053] In one embodiment, the cylinder cover 108 is threadedly connected to the first through hole 1081, and the end face of the cylinder cover 108 is provided with a countersunk hole 1083. The countersunk hole 1083 is used as an assembly process hole. For example, after inserting a tool into the countersunk hole 1083, the cylinder cover 108 can be rotated by rotating the tool.

[0054] Specifically, by rotating the cylinder cover 108, the cylinder cover 108 can be threadedly connected to the seat 101, or the cylinder cover 108 can be separated from the seat 101.

[0055] In one embodiment, the cylinder cover 108 has a plurality of through holes 1082 at one end of the first chamber 104. These through holes 1082 are used for oil flow.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A clamp, characterized in that The device includes a base and a hydraulic cylinder, which are detachably connected. The hydraulic cylinder has a receiving cavity, within which a piston is housed. The piston includes a piston rod and a piston head, which divides the receiving cavity into a first chamber and a second chamber. The hydraulic cylinder has a first oil hole and a second oil hole, with the first oil hole corresponding to the first chamber and the second oil hole corresponding to the second chamber. A cylinder cover is installed at the open end of the receiving cavity. The cylinder cover has a first through hole. One end of the piston rod passes through the first through hole of the cylinder cover and is connected to the connecting shaft. The connecting shaft is detachably connected to the sliding tongue. The seat has a second through hole. The sliding tongue is located in the second through hole. The first end of the sliding tongue is provided with a pressure-applying structure. The piston rod is used to drive the sliding tongue to move linearly along the second through hole.

2. The clip-on mold of claim 1, wherein, The connecting shaft includes a threaded portion, and the piston rod is provided with a threaded hole that is threadedly connected to the threaded portion. The connecting shaft also includes a first block, a middle portion, and a second block. The first block, the middle portion, and the second block together form an annular groove. The second end of the sliding tongue is provided with a cavity, and a partition block is provided in the cavity. The partition block divides the cavity into a first cavity and a second cavity. A U-shaped groove is provided on the partition block. The middle portion is located in the U-shaped groove, the first block is located in the first cavity, and the second block is located in the second cavity.

3. The clip-on mold of claim 1, wherein, The pressure-applying structure includes an inclined surface.

4. The clip-on mold of claim 1, wherein, The second end of the sliding tongue is provided with a groove, and the base is provided with a first sensor and a second sensor. The sliding tongue has a first position and a second position. The first sensor is used to detect the first position of the sliding tongue, and the second sensor is used to detect the second position of the sliding tongue.

5. The clip-on mold of claim 4, wherein, The base is provided with a mounting groove, and a first mounting hole and a second mounting hole are provided on one side of the mounting groove. The first mounting hole is provided with the first sensor, and the second mounting hole is provided with the second sensor. The base is also provided with a sensor cover plate, which covers one side of the mounting groove.

6. The clip-on mold of claim 1, wherein, The second through hole on the base is provided along the Y direction, and the base is also provided with multiple mounting through holes, each of which is provided along the X direction.

7. The clip-on mold of claim 1, wherein, The cylinder cover is threadedly connected to the first through hole, and a countersunk hole is provided on the end face of the cylinder cover.

8. The clip-on mold of claim 7, wherein, The cylinder cover has several through holes at one end of the first chamber.

9. The clip-on mold of claim 1, wherein, The base and the cylinder are detachably connected by bolts, and the end face of one end of the base is in contact with the end face of one end of the cylinder.

10. The clip-on mold of claim 1, wherein, The seat is cubic in shape, and the oil cylinder is cubic in shape.

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