Bidirectional centering vice

Abstract

The bidirectional centering vice comprises a vice base, a screw limiting block, a screw, two sliding blocks and two vice clamping jaws, a sliding groove is formed in the vice base, a first screw limiting block mounting part is arranged at the bottom of the sliding groove, and second screw limiting block mounting parts are arranged in the middles of the two sides of the sliding groove; limiting grooves are formed in the two sides of the sliding groove. The screw limiting block is fixedly mounted in the middle of the sliding groove through the first screw limiting block mounting part and the second screw limiting block mounting part; the screw rod is arranged in the screw rod through hole in a penetrating mode, the two sliding blocks are installed at the two ends of the sliding groove in a sliding mode respectively, and the two vice clamping jaws are fixedly installed on the two sliding blocks respectively. According to the screw limiting block, the plurality of mounting points are arranged on the vice base, namely, the screw limiting block is provided with the plurality of stress supporting points, so that the axial force of the screw on the screw limiting block can be effectively dispersed.

Description

Technical Field

[0001] The present application relates to the field of mechanical equipment processing, and in particular to a bidirectional centering vise. Background Art

[0002] In the field of mechanical equipment processing, vises are often used as fixtures, which are generally composed of a base, a screw, a screw limit block and two clamping jaws. The two clamping jaws move toward each other by rotating the screw to clamp the object. The function of the screw limit block is to limit the left and right displacement of the screw when the screw is rotated and the two clamping jaws move toward each other. Therefore, the screw limit block will be subjected to the axial force of the screw.

[0003] In the existing vise, the screw limit block is only fixed to the base, that is, when the screw limit block is subjected to the axial force of the screw, there is only one force support point, which is prone to excessive force at a single point, resulting in unstable or unsafe situations such as breakage of the screw limit block. Utility Model Content

[0004] Based on this, the purpose of the present application is to provide a screw limit block having multiple force support points so that it can have a bidirectional centering vise with high load-bearing capacity.

[0005] The purpose of this application can be achieved through the following technical solutions:

[0006] The cam is provided with a first end for receiving the first and second end portions of the sliding groove, and a second end for receiving the second and second end portions of the sliding groove is provided at the bottom of the sliding groove.

[0007] Compared with the prior art, the screw limit block of the bidirectional centering vise provided by the present application is fixedly installed with the vise base through the first screw limit block installation part, and the middle of the two sides of the sliding groove provided by the vise base are respectively provided with a second screw limit block installation part, and the screw limit block is also fixedly installed with the vise base through the second screw limit block installation part. Compared with the traditional vise, the screw limit block of the present application has multiple installation points on the vise base, that is, the screw limit block has multiple force support points, which can disperse the axial force of the screw on the screw limit block, thereby increasing the stability of the screw limit block, and effectively avoiding the occurrence of excessive force on a single point of the screw limit block, resulting in unstable or unsafe situations such as the breakage of the screw limit block.

[0008] Further, the second screw limit block mounting portion is a recess arranged in the middle of both sides of the sliding groove, the recess is provided with a first mounting hole, the screw limit block is provided with two protrusions corresponding to the recess, the screw limit block is respectively embedded in the two recesses through the two protrusions, and can be removably mounted in the middle of the sliding groove through the first mounting hole.

[0009] Furthermore, the vise base includes: a base and two ribs, the two ribs are detachably installed on both sides of the upper surface of the base, the sliding groove is formed between the opposite sides of the two ribs and the base, the base is provided with the first screw limit block installation part, and the two ribs are each provided with a second screw limit block installation part.

[0010] Furthermore, the screw limit block includes an upper positioning block and a lower positioning block, the upper positioning block is detachably assembled with the lower positioning block, and the screw through hole is formed at the assembly joint; the lower positioning block is detachably mounted with the vise base through the first screw limit block mounting portion; two protrusions are provided at both ends of the top of the upper positioning block.

[0011] Furthermore, a plurality of second mounting holes are provided on both sides of the upper surface of the base, and the ribs are detachably mounted on the base through the second mounting holes.

[0012] Furthermore, the screw is provided with a clamping section, and a first thread section and a second thread section arranged on both sides of the clamping section, the thread directions of the first thread section and the second thread section are opposite, and the diameters of the first thread section and the second thread section are both larger than the diameters of the clamping section and the screw through hole; the screw is clamped with the screw through hole through the clamping section, and the two sliding blocks are respectively screwed with the first thread section and the second thread section.

[0013] Furthermore, a polygonal screw hole for rotating the screw is provided at one end of the first thread segment and the second thread segment away from the screw limiting block.

[0014] Furthermore, a positioning strip is provided at the bottom of the vise jaw, and a positioning groove matching the positioning strip is provided at the top of the slider. After the vise jaw is engaged with the positioning strip and the positioning groove through the positioning strip, it can be detachably assembled on the slider.

[0015] Furthermore, a plurality of weight-reducing holes are provided on both sides of the vise base.

[0016] For better understanding and implementation, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall schematic diagram of a bidirectional centering vise for this application;

[0018] Figure 2 A partially exploded schematic diagram of a screw, a limit block, a rib and a base of a bidirectional centering vise of the present application;

[0019] Figure 3 A partially exploded schematic diagram of a screw and a slider of a bidirectional centering vise of the present application;

[0020] Figure 4 This is an exploded schematic diagram of a screw limit block of a bidirectional centering vise of the present application;

[0021] Figure 5 An exploded schematic diagram of a bidirectional centering vise according to the present application. DETAILED DESCRIPTION

[0022] The present application provides a bidirectional centering vise. In order to make the purpose, technical solution and effect of the present application clearer and more specific, the technical solution in the embodiment of the present application will be clearly and completely described below in combination with the drawings in the embodiment of the present application. Obviously, the described embodiment is only a part of the embodiment of the present application, not all of the embodiments. Based on the embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present application. It can be understood that the drawings are only provided for reference and explanation, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0023] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of this application. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0024] It should also be noted that in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] See also Figure 1 , Figure 1 The bidirectional centering vise 1 provided in the present application comprises: a vise base 11 , a screw limit block 12 , a screw 13 , two slide blocks 14 and two vise jaws 15 .

[0026] Please also see Figure 2 , Figure 2 This is a partial exploded schematic diagram of a screw, a stopper, a rib and a base of a bidirectional centering vise of the present application. A sliding groove 111 is provided on the vise base 11, and a first screw stopper mounting portion 112 is provided at the bottom of the sliding groove 111, and a second screw stopper mounting portion 113 is provided in the middle of both sides of the sliding groove 111, and both sides of the sliding groove 111 are provided with a stopper groove 114 extending along the length 111 degree direction of the sliding groove. The screw stopper 12 is fixedly installed in the middle of the sliding groove 111 by the first screw stopper mounting portion 112 and the second screw stopper mounting portion 113, and a screw through hole 121 is provided in the middle of the screw stopper 12, and the screw 13 is penetrated in the screw through hole 121.

[0027] Please also read Figure 3 , Figure 3 This is a partial exploded schematic diagram of a screw and a slider of a bidirectional centering vise of the present application. The two sliders 14 are slidably mounted at the two ends of the sliding groove 111, respectively. A screw hole 141 is provided in the middle of the slider 14, and convex strips 142 are provided on both sides thereof. The screw hole 141 is screwed to the screw 13, and the convex strips 142 are slidably limited in the limiting groove 114. The two vise jaws 15 are fixedly mounted on the two sliders 14, respectively.

[0028] The working principle of the bidirectional centering vise provided by the present application is: manually rotating the screw 13 drives the screw 13 to rotate, thereby driving the two sliders 14 screwed to the screw 13 to move relative to or away from each other, thereby realizing the function of the two vise jaws 15 clamping or loosening the workpiece. When the two sliders 14 move relative to or away from each other, since the force is mutual, the two sliders 14 will give the screw 13 a corresponding axial force, and the screw limit block 12 limits the axial position of the screw 13 by resisting the axial force of the screw 13.

[0029] Compared with the existing vise in which the screw positioning block is only fixedly connected to the base, that is, the force support point of the screw positioning block is single, the present application is based on the first screw limit block installation part 112 being fixedly installed with the vise base 11, and the second screw limit block installation part 113 is respectively provided in the middle of both sides of the sliding groove 111 provided in the vise base 11, and the screw limit block 12 is also fixedly installed with the vise base 11 through the second screw limit block installation part 113, that is, the screw limit block 12 of the present application has multiple force support points. Therefore, the screw limit block 12 of the present application can effectively disperse the axial force of the screw 13 on the screw limit block 12, thereby increasing the stability of the screw limit block 12, and effectively avoiding the occurrence of excessive force on a single point of the screw limit block 12, resulting in unstable or unsafe situations such as the breakage of the screw limit block 12.

[0030] In this embodiment, the second screw stopper installation part 113 is a notch provided in the middle of both sides of the sliding groove 111, and the notch 113 is provided with a first installation hole 113a, which is a bolt hole. The screw stopper 12 is provided with two protrusions 122 corresponding to the notch 113, and the screw stopper 12 is respectively embedded in the two notches 113 through the two protrusions 122, and the screw stopper 12 is detachably installed on the first installation hole 113a through fasteners such as bolts, so that the screw stopper 12 is detachably installed in the middle of the sliding groove 111 through the first installation hole 113a.

[0031] The interlocking structure formed by the protrusion 122 and the recess 113 enables the protrusion 122 and the recess 113 to be tightly combined and not easily loosened or separated, thereby effectively improving the stability and firmness of the screw limit block 12 fixedly installed in the middle of the sliding groove 111.

[0032] In other embodiments, the second screw limit block mounting portion 113 may also be a protruding structure, and the screw limit block 12 is provided with two sleeve holes corresponding to the two protruding structures, and the screw limit block 12 is respectively inserted into the two protruding structures through the two sleeve holes, so as to achieve detachable installation in the middle of the sliding groove. The first mounting hole 113a may also be a screw hole or other types of mounting holes, and the type of fastener may be adaptively adjusted corresponding to the type of mounting hole of the first mounting hole 113a. Even if other changes are made to the installation method of the screw limit block 12 and the second screw limit block mounting portion 113, it still falls within the protection scope of the present application.

[0033] The vise base 11 includes: a base 115 and two ribs 116. A plurality of second mounting holes 115a are provided on both sides of the upper surface of the base 115. The two ribs 116 are detachably mounted on both sides of the upper surface of the base 115 through the second mounting holes 115a. The second mounting holes 115a are bolt holes, and the number is 6. The two ribs 116 are detachably mounted on the second mounting holes 115a on both sides of the upper surface of the base 115 through fasteners such as bolts, so that the ribs 116 are detachably mounted on the base 115 through the second mounting holes 115a. The sliding groove 111 is formed between the opposite sides of the two ribs 116 and the base 115. The base 115 is provided with the first screw limit block mounting portion 112, and the two ribs 116 are each provided with a second screw limit block mounting portion 113.

[0034] The screw stopper 12 can disperse the axial force of the screw 13 to the two ribs 116 through the two protrusions 122 and the two recesses 113. That is, when the screw stopper 12 is subjected to the axial force of the screw 13, the two protrusions 122 will exert force on the two recesses 113, which will cause the recesses 113 to wear and other conditions.

[0035] The bidirectional centering vise provided in this embodiment is detachably mounted on both sides of the upper surface of the base 115 by setting two ribs 116. When the notch 113 on the rib 116 is worn, it is convenient to remove and replace the rib 116. Of course, in other embodiments, the second mounting hole 115a can also be a screw hole or other type of mounting hole, and the number of the second mounting holes 115a can also be adaptively adjusted. Corresponding to the type of the mounting hole of the second mounting hole 115a, the type of the fastener is adaptively adjusted.

[0036] Please also read Figure 4 , Figure 4 The exploded schematic diagram of the screw limit block of the bidirectional centering vise of the present application. In the present embodiment, the screw limit block 12 includes an upper positioning block 123 and a lower positioning block 124, and the upper positioning block 123 is detachably assembled with the lower positioning block 124 by screws, and the screw through hole 121 is formed at the assembly joint. Among them, the first screw limit block mounting portion 112 is a bolt hole, the number of which is 2, and the lower positioning block 124 is detachably mounted on the first screw limit block mounting portion 112 of the vise base 11 by fasteners such as bolts, so that the lower positioning block 124 can be detachably mounted on the vise base 11 through the first screw limit block mounting portion 112. Two protrusions 122 are provided at the two ends of the top of the upper positioning block 123. After the two protrusions 122 of the upper positioning block 123 are respectively embedded in the two recesses 113, the upper positioning block 123 is detachably mounted on the first mounting hole 113a by fasteners such as bolts, thereby realizing that the upper positioning block 123 is detachably mounted on the middle part of the sliding groove 111 through the first mounting hole 113a.

[0037] When the screw stop block 12 is subjected to the axial force of the screw 13, the two protrusions 122 exert force on the two first notches 113, and the two protrusions 122 are also subjected to the reaction of the force exerted by the two first notches 113, which may cause the protrusions 122 to wear. The bidirectional centering vise provided in this embodiment is detachably assembled with the upper positioning block 123 by providing the lower positioning block 124, and when the protrusion 122 is worn, it is convenient to disassemble and replace the upper positioning block 123.

[0038] In addition, the two protrusions 122 respectively arranged at the two ends of the upper positioning block 123, and the fixed points where the lower positioning block 124 and the base 115 are fixedly installed, respectively serve as three force-bearing support points of the screw limit block 12, and the three force-bearing support points are connected to form a triangular structure, which can effectively disperse the axial force of the screw 13 exerted on the screw limit block 12, thereby improving the bearing capacity of the screw limit block 12.

[0039] The screw 13 is provided with a clamping section 131, and a first thread section 132 and a second thread section 133 provided on both sides of the clamping section 131. The thread directions of the first thread section 132 and the second thread section 133 are opposite, and the diameters of the first thread section 132 and the second thread section 133 are both larger than the diameters of the clamping section 131 and the screw through hole 121. The screw 13 is clamped with the screw through hole 121 through the clamping section 131, and the two sliders 14 are respectively screwed with the first thread section 132 and the second thread section 133. Among them, the first thread section 132 is a right-handed thread, and the second thread section 133 is a left-handed thread.

[0040] After the screw 13 is clamped with the screw through hole 121 through the clamping section 131, since the diameters of the first thread segment 132 and the second thread segment 133 are both larger than the clamping section 131, the two sides of the screw limit block 12 that contact the first thread segment 132 and the second thread segment 133 can receive the axial force of the first thread segment 132 and the second thread segment 133 respectively, thereby limiting the axial displacement of the screw 13. Of course, in other embodiments, the first thread segment 132 is a left-handed thread, and the second thread segment 133 is a right-handed thread.

[0041] In one embodiment, the diameter of the screw 13 is 30 mm. Compared with the screw of a conventional vise with a diameter between 10 mm and 20 mm, the diameter of the screw 13 provided in this embodiment is larger than the diameter of the screw of the conventional vise, which effectively improves the clamping force of the bidirectional centering vise provided by the present application, and the screw 13 with a larger diameter has a higher strength and can withstand greater stress and torque, thereby ensuring that the screw 13 will not break or plastically deform during the clamping process.

[0042] In this embodiment, the first thread segment 132 and the second thread segment 133 are both provided with a polygonal screw hole 134 for rotating the screw 13 at one end away from the screw stopper 12. The polygonal screw hole 134 is a hexagonal screw hole.

[0043] By using a tool corresponding to the hexagonal screw hole 134 , such as a hexagonal wrench, etc., and applying force with the hexagonal screw hole 134 as a supporting point, the screw rod 13 is rotated, thereby achieving relative movement or opposite movement of the two sliders 14 .

[0044] See also Figure 5 , Figure 5This is an exploded schematic diagram of a bidirectional centering vise of the present application. In one embodiment, a positioning strip 143 is provided at the bottom of the vise jaw 15, and a positioning groove 151 matching the positioning strip 143 is provided at the top of the slider 14, and a plurality of vise jaw mounting holes 144 are symmetrically provided at the top of the slider 14 with the positioning groove 151 as the center, wherein the vise jaw mounting holes 144 are bolt holes, and the number is 4. After the positioning strip 143 of the vise jaw 15 is engaged with the positioning groove 151, the vise jaw 15 is detachably mounted on the vise jaw mounting hole 144 of the slider 14 by fasteners such as bolts, thereby realizing the detachable assembly of the vise jaw 15 on the slider 14.

[0045] When assembling the vise jaw 15 with the slider 14, the positioning strip 143 and the positioning groove 151 are first engaged, so that the staff can conveniently install the vise jaw 15 on the vise jaw mounting hole 144 of the slider 14 through fasteners such as screws. In other embodiments, the vise jaw mounting hole 144 can also be other types of mounting holes such as screw holes, and the number of the vise jaw mounting holes 144 can be adaptively adjusted, and the type of fasteners can be adaptively adjusted corresponding to the mounting hole type of the vise jaw mounting hole 144.

[0046] In this embodiment, a plurality of weight-reducing holes 117 are provided on both sides of the vise base 11. There are six weight-reducing holes 117, and three weight-reducing holes 117 are symmetrically provided at both ends of the vise base 11, with the sliding groove 111 as the center. By providing the weight-reducing holes 117, the flexibility of the vise base 11 can be increased, stress concentration can be reduced, and the fatigue resistance of the vise base 11 can be improved.

[0047] In other embodiments, the number of the weight-reducing holes 117 may be adjusted appropriately.

[0048] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present application, and the present application is also intended to include such modifications and modifications.

Claims

1. A two-way centering vise, characterized in that: include: The cam is provided with a first screw limit block mounting portion, a second screw limit block mounting portion is provided at the middle parts of both sides of the sliding groove, and both sides of the sliding groove are provided with limiting grooves extending along the length direction of the sliding groove; the screw limit block is fixedly installed in the middle part of the sliding groove through the first screw limit block mounting portion and the second screw limit block mounting portion, and a screw through hole is provided in the middle of the screw limit block; the screw is penetrated in the screw through hole; the two sliding blocks are respectively slidably installed at the two ends of the sliding groove, a screw hole is provided in the middle of the sliding block, and convex strips are provided on both sides of the sliding block, the screw hole is screwed with the screw, and the convex strips can be slidably limited in the limiting groove; the two vise jaws are respectively fixedly installed on the two sliding blocks.

2. A bidirectional centering vise according to claim 1, characterized in that: The second screw limit block mounting portion is a recess arranged in the middle of both sides of the sliding groove, and the recess is provided with a first mounting hole. The screw limit block is provided with two protrusions corresponding to the recess. The screw limit block is respectively embedded in the two recesses through the two protrusions, and can be removably installed in the middle of the sliding groove through the first mounting hole.

3. A bidirectional centering vise according to any one of claims 1-2, characterized in that: The vise base includes: a base and two ribs, the two ribs are detachably mounted on both sides of the upper surface of the base, the sliding groove is formed between the opposite sides of the two ribs and the base, the base is provided with the first screw limit block mounting portion, and the two ribs are each provided with a second screw limit block mounting portion.

4. A bidirectional centering vise according to claim 2, characterized in that: The screw limit block includes an upper positioning block and a lower positioning block, the upper positioning block is detachably assembled with the lower positioning block, and the screw through hole is formed at the assembly joint; the lower positioning block is detachably mounted with the vise base through the first screw limit block mounting portion; two protrusions are provided at both ends of the top of the upper positioning block.

5. A bidirectional centering vise according to claim 3, characterized in that: A plurality of second mounting holes are arranged on both sides of the upper surface of the base, and the ribs are detachably mounted on the base through the second mounting holes.

6. A bidirectional centering vise according to claim 1, characterized in that: The screw is provided with a clamping section, and a first thread section and a second thread section arranged on both sides of the clamping section, the thread directions of the first thread section and the second thread section are opposite, and the diameters of the first thread section and the second thread section are both larger than the diameters of the clamping section and the screw through hole; the screw is clamped with the screw through hole through the clamping section, and the two sliders are respectively screwed with the first thread section and the second thread section.

7. A bidirectional centering vise according to claim 6, characterized in that: A polygonal screw hole for rotating the screw is disposed at one end of the first thread segment and the second thread segment away from the screw limiting block.

8. A bidirectional centering vise according to claim 1, characterized in that: A positioning strip is provided at the bottom of the vise jaw, and a positioning groove matching the positioning strip is provided at the top of the slide block. After the vise jaw is engaged with the positioning strip and the positioning groove through the positioning strip, it can be detachably assembled on the slide block.

9. A bidirectional centering vise according to claim 1, characterized in that: Both ends of the vise base are provided with a plurality of weight-reducing holes.

10. A bidirectional centering vise according to claim 9, characterized in that: The weight-reducing holes are symmetrically arranged at two ends of the vise base with the sliding groove as the center.

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