Profiling universal fixture

Abstract

The present application relates to the technical field of clamping fixture, in particular to a kind of profiling universal fixture, including frame, be located in the pressing positioning mechanism of frame top, be located in the first layer clamping support mechanism of frame, up and down slide in the second layer clamping support mechanism of frame;First layer clamping support mechanism includes first right support plate assembly, first left support plate assembly, first right support plate assembly and first left support plate assembly are equipped with guide assembly and clamping assembly on the slide of guide assembly, clamping assembly is equipped with a plurality of first spring needle;Second layer clamping support mechanism includes the lifting fixed seat of slide in the frame both sides, second right support plate assembly and second left support plate assembly, second right support plate assembly and second left support plate assembly are equipped with a plurality of second spring needle.The present application can be used for the product of different appearance, clamping effect is good, it is easy to use, can be reused, can realize the clamping of various workpieces, without replacing fixture, to improve production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamping jigs, in particular to a profiling universal clamp. BACKGROUND

[0002] In the production of castings, usually a mold can simultaneously open multiple parts, and the multiple parts are integrally connected by excess material after the mold is opened, so a cutting machine is needed to cut and separate each part.

[0003] When cutting castings, a clamp is needed for fixation to facilitate cutting. Because castings have different shapes, a special clamping jig is needed, which needs to be designed and manufactured separately. After the production cycle of a product ends, the special clamping jig cannot be used for other products and can only be scrapped, resulting in waste of resources. On the production line, if multiple workpieces are frequently replaced, the clamps need to be frequently replaced, affecting production efficiency. In addition, when some special jigs clamp workpieces for cutting, especially when the workpieces are cut to the end, because the parts are only connected by a point of material at the end, the workpiece on one side moves closer to the workpiece on the other side or the two workpieces move closer to each other due to shaking, causing the gap at one end to gradually decrease, which easily causes the workpiece to collide with the saw blade, resulting in the saw blade breaking during the cutting process. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provides a universal profiling clamp, which is highly versatile and can be used on various products, solving the problem that special jigs cannot be reused, the workpiece on one side moves closer to the workpiece on the other side or the two workpieces move closer to each other due to shaking, causing the gap at one end to gradually decrease, which easily causes the workpiece to collide with the saw blade, resulting in the saw blade breaking during the cutting process, saving materials, and avoiding collision between the workpiece and the saw blade.

[0005] The technical solution of the present application to solve the above technical problems is as follows: a profiling universal clamp, comprising a frame, a pressing positioning mechanism for clamping a workpiece provided on the top of the frame, a first layer of clamping support mechanism provided on the frame and used for supporting the workpiece, a second layer of clamping support mechanism sliding up and down on the frame and located outside the first layer of clamping support mechanism.

[0006] The first layer of clamping support mechanism comprises a first right support plate assembly and a first left support plate assembly which is identical in structure to the first right support plate assembly and moves towards the first right support plate assembly to clamp and support the workpiece. The first right support plate assembly and the first left support plate assembly are both provided with a guide assembly and a clamping assembly sliding on the guide assembly, and a plurality of first spring needles are arranged on the clamping assembly.

[0007] The second layer clamping support mechanism comprises a lifting fixing base slidably arranged on both sides of the frame and driven by a set of lifting cylinders and provided with guide rails, a second right support plate assembly and a second left support plate assembly slidably arranged on the lifting fixing base and clamped towards each other, and a plurality of second spring pins arranged on the second right support plate assembly and the second left support plate assembly.

[0008] The two clamping assemblies are parallel to the second right support plate assembly and the second left support plate assembly.

[0009] In an embodiment, a set of vertical guide rails are symmetrically arranged on the side walls of the two sides of the frame, the lifting fixing base is connected with the vertical guide rails through a sliding block, the two guide assemblies are arranged on the left and right sides of the top of the frame, and the clamping part of the pressing positioning mechanism is located between the two clamping assemblies.

[0010] In another embodiment, the pressing positioning mechanism is provided with two telescopic cylinders penetrating through the top of the frame and extending between the two clamping assemblies when in motion, the output ends of the two telescopic cylinders are each provided with an upper pressing block, guide sliding rods penetrating through the top of the frame are symmetrically arranged on the two sides of the upper pressing block, and linear bearings that cooperate with the guide sliding rods to slide are arranged on the frame; a sliding groove is arranged on the bottom of the upper pressing block, a jig clamping hand is slidably arranged in the sliding groove, and an adjusting groove that is in communication with the sliding groove and extends along the direction of the sliding groove is arranged on one side edge of the upper pressing block.

[0011] In another embodiment, a detachable lower jig is arranged on the bottom of the frame, and a lower positioning block that cooperates with the jig clamping hand to position a workpiece is arranged on the lower jig.

[0012] In another embodiment, the guide assembly comprises a guide rail fixing plate provided with a guide rail group arranged along the length direction of the guide rail fixing plate and a first rack arranged between the guide rail group; the guide assembly further comprises a base slidably arranged on the guide rail group, the base is provided with a transmission opening, transition wheel fixing plates are arranged on the upper and lower sides of the transmission opening, a transition gear that meshes with the first rack is arranged between the two transition wheel fixing plates, a first transmission member that is provided with a driving gear meshing with the transition gear is mounted on the upper transition wheel fixing plate, clamping guide rails arranged along the thickness direction of the guide rail fixing plate are arranged on the bottom of the base, a second rack is arranged between the two clamping guide rails, and a clamping assembly is slidably arranged on the base.

[0013] In another embodiment, the clamping assembly comprises a support plate connected with the clamping guide rail, a reinforcing rib is formed on the outer side wall surface of the support plate, a second transmission member that is provided with a transmission gear meshing with the second rack is mounted on the reinforcing rib, a first profiling plate parallel to the support plate is arranged on the side of the support plate away from the reinforcing rib, a plurality of first blind holes are arranged on the end surface of the support plate close to the first profiling plate, the first profiling plate is provided with a first mounting hole corresponding to the first blind hole, and one end of the first spring pin is connected with the first mounting hole and the first blind hole.

[0014] In another embodiment, the lifting fixing seat is provided with sliding seats connected with the guide sliding rails, the sliding seats are two and are arranged on the two sides of the lifting fixing seat, the lifting fixing seat on the one side of the frame is provided with push cylinders, the push cylinders are two and are arranged on the upper and lower ends of the lifting fixing seat respectively, the output ends of the two push cylinders are connected with the two sliding seats respectively, and the sliding seats are provided with support fixing plates for fixing the second right support plate assembly and the second left support plate assembly respectively.

[0015] In another embodiment, the second right support plate assembly and the second left support plate assembly are provided with outer support plates connected with the support fixing plates, the second profiled plates are arranged on the sides of the two outer support plates in parallel with the outer support plates, the end faces of the outer support plates close to the second profiled plates are provided with a plurality of second blind holes, the second profiled plates are provided with second mounting holes corresponding to the second blind holes, and one end of the second spring needle is connected with the second blind hole through the second mounting hole.

[0016] In another embodiment, the guide rail fixing plates are provided with organ protection covers connected with the bases on the two sides.

[0017] In another embodiment, the support plates are provided with dust covers for covering the second rack, the transmission gear and the second transmission member on the two sides.

[0018] The beneficial effects of the present application are:

[0019] 1. It can be used for products with different shapes, has good clamping effect, is convenient to use, can be repeatedly used, can clamp various workpieces without replacing clamps, and the production efficiency is improved.

[0020] 2. The workpiece is clamped and fixed through the setting of the pressing positioning mechanism, and different sizes of products can be clamped through the setting of the first layer clamping support mechanism and the second layer clamping support mechanism, the practicability is high, the density of the spring needle is increased to increase the contact area between the clamp and the workpiece, and the stability is good.

[0021] 3. The first layer clamping support mechanism and the second layer clamping support mechanism can prevent the workpiece from being deviated during cutting, and the workpiece is supported and pressed through the first layer clamping support mechanism and the second layer clamping support mechanism, so that the workpiece is prevented from gradually approaching the saw blade, the workpiece and the saw blade are prevented from colliding, and the safety of cutting is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is an exploded view of the present application;

[0024] Figure 3 It is a position relationship diagram of an angle of the guide assembly and the clamping assembly in the present application;

[0025] Figure 4 is another angle position relationship diagram of the guide assembly and the clamping assembly in the present application;

[0026] Figure 5 is still another angle position relationship diagram of the guide assembly and the clamping assembly in the present application;

[0027] Figure 6 is a structural schematic diagram of the second layer clamping support mechanism in the present application;

[0028] Figure 7 is an angle position relationship diagram of the frame and the pressing positioning mechanism in the present application;

[0029] In the drawings, the components represented by each reference numeral are listed as follows:

[0030] 10, frame, 101, vertical guide rail, 102, lower jig, 103, lower positioning block;

[0031] 20, pressing positioning mechanism, 201, telescopic cylinder, 202, upper pressing block, 203, guide slide rod, 204, jig clamping hand;

[0032] 30, first layer clamping support mechanism, 301, first right support plate assembly, 302, first left support plate assembly, 303, guide assembly, 3031, guide rail fixed plate, 3032, guide rail group, 3033, first rack, 3034, base, 3035, transition wheel fixed plate, 3036, first transmission member, 3037, clamping slide rail, 3038, second rack, 3039, organ protective cover, 304, clamping assembly, 3041, support plate, 3042, second transmission member, 3043, first profiling plate, 3044, first blind hole, 3045, first mounting hole, 3046, dust cover, 305, first spring needle;

[0033] 40, second layer clamping support mechanism, 401, lifting cylinder, 402, guide slide rail, 403, lifting fixed seat, 4031, slide seat, 4032, pushing cylinder, 4033, support fixed plate, 404, second right support assembly, 4041, outer support plate, 4042, second profiling plate, 4043, second mounting hole, 405, second left support plate assembly, 406, second spring needle. DETAILED DESCRIPTION

[0034] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.

[0035] A jig refers to a device used to fix a processing object (workpiece) in a correct position to accept construction or detection in the process of mechanical manufacturing.

[0036] Generally, one fixture can only hold one or limited several workpieces. For example, a four-jaw chuck can hold a rectangular workpiece; a three-jaw chuck can hold a regular triangle workpiece or a regular hexagonal workpiece. Especially for castings, different castings have different shapes, and special clamping fixtures need to be used.

[0037] When cutting castings, a fixture needs to be used for fixation to facilitate cutting. Since different castings have different shapes, special clamping fixtures need to be used, which need to be designed and manufactured separately. After the production cycle of a product ends, the special clamping fixture cannot be used for other products and can only be scrapped, thereby causing waste of resources. If multiple workpieces are frequently replaced on a production line, the fixture needs to be frequently replaced, which affects production efficiency. Moreover, when some special fixtures clamp workpieces for cutting, especially when the workpieces are cut to the end, since only one point of material at the end connects between parts and parts, when cutting, due to shaking, the part on one side approaches the other part or the two parts approach each other, so that the gap at one end is gradually reduced, which easily causes the part to collide with the saw blade, resulting in the problem of breaking of the saw blade during cutting. To solve the above problems, the inventor proposes a profiling universal fixture suitable for a casting cutting device.

[0038] The present application provides the following preferred embodiments

[0039] As shown in Figure 1 and Figure 2 , a profiling universal fixture includes a frame 10, a pressing positioning mechanism 20 for clamping a workpiece is arranged on the top of the frame 10, and a first layer of clamping support mechanism 30 for supporting the workpiece is arranged on the frame 10. A group of vertical guide rails 101 are symmetrically arranged on the side walls of both sides of the frame 10. A second layer of clamping support mechanism 40 is arranged on the frame 10 and cooperates with the vertical guide rails 101 to slide and is located outside the first layer of clamping support mechanism 30. The first layer of clamping support mechanism 30 can clamp and support small workpieces, and the workpieces are clamped and positioned by the pressing positioning mechanism 20, so that the displacement of the workpieces during processing is avoided, and the stability of processing is further improved. The second layer of clamping support mechanism 40 can clamp and support large workpieces, so that the fixture meets the clamping needs of workpieces of different sizes, and the practicality of the fixture is improved.

[0040] In this embodiment, as shown in Figure 7As shown, the pressing positioning mechanism 20 is provided with two telescopic cylinders 201 penetrating through the top of the frame 10 and extending to the two clamping assemblies 304 when moving, the output ends of the two telescopic cylinders 201 are each provided with an upper pressing block 202, the upper pressing block 202 is symmetrically provided with a guide sliding rod 203 penetrating through the top of the frame 10 on both sides, the frame 10 is provided with a linear bearing cooperating with the guide sliding rod 203 to slide; the bottom of the upper pressing block 202 is provided with a sliding groove, the sliding groove is slidably provided with a jig clamping hand 204, and a adjusting groove extending along the sliding groove is opened on one side of the upper pressing block 202 and communicates with the sliding groove, the jig clamping hand 204 is fixed on the sliding groove through the adjusting groove by bolts, by setting the sliding groove, the position of the jig clamping hand 204 can be adjusted, and then different sizes of workpieces can be clamped, which is practical;

[0041] Moreover, the mounting grooves are arranged on the bottom of the frame 10 on both sides, and the detachable lower jig 102 is mounted on the mounting grooves, the lower jig 102 is provided with a lower positioning block 103 for positioning the workpiece in cooperation with the jig clamping hand 204, and the workpiece can be clamped and fixed through the cooperation of the lower positioning block 103 and the jig clamping hand 204, so that the workpiece will not be deviated during cutting, and the safety of cutting is improved.

[0042] In this embodiment, as shown in Figure 3 、 Figure 4 and Figure 5 , in order to realize clamping of workpieces of different shapes and to avoid the workpiece gradually approaching the saw blade during cutting, a first layer clamping support mechanism 30 and a second layer clamping support mechanism 40 are provided, wherein the first layer clamping support mechanism 30 includes a first right support plate assembly 301 and a first left support plate assembly 302 which is identical in structure to the first right support plate assembly 301 and moves towards the first right support plate assembly 301 to clamp the workpiece, the first right support plate assembly 301 and the first left support plate assembly 302 are each provided with a guide assembly 303 and a clamping assembly 304 slidably arranged on the guide assembly 303, and a plurality of first spring needles 305 are arranged on the clamping assembly 304, by arranging the first spring needles 305 on the two clamping assemblies 304, the first spring needles 305 can be arranged according to the different shapes of the workpiece, forming point and surface contact, so that the two clamping assemblies 304 can clamp workpieces of different shapes, and the density of the first spring needles 305 is increased to improve the contact area between the jig and the workpiece, and the stability is good;

[0043] The two guide assemblies 303 are respectively arranged on the left and right sides of the top of the frame 10, and the guide assembly 303 comprises a guide rail fixed plate 3031, the guide rail fixed plate 3031 is provided with guide rail groups 3032 arranged along the length direction of the guide rail fixed plate 3031 and a first rack 3033 arranged between the guide rail groups 3032; the guide assembly 303 further comprises a base 3034 slidably arranged on the guide rail groups 3032, the base 3034 is provided with a transmission opening, the transmission opening is provided with transition wheel fixed plates 3035 on the upper and lower sides, transition gears meshing with the first rack 3033 are arranged between the two transition wheel fixed plates 3035, the upper transition wheel fixed plate 3035 is provided with a first transmission member 3036, the output end of the first transmission member 3036 is meshed with the transition gear, the bottom of the base 3034 is provided with clamping slide rails 3037 arranged along the thickness direction of the guide rail fixed plate 3031, a second rack 3038 is arranged between the two clamping slide rails 3037, and the clamping assembly 304 is slidably arranged on the base 3034; through the above arrangement, the position of the clamping assembly 304 can be moved and adjusted, so that the workpiece is clamped conveniently.

[0044] The clamping assembly 304 comprises a support plate 3041 connected with the clamping slide rail 3037, the outer side wall surface of the support plate 3041 is formed with a reinforcing rib, the reinforcing rib is provided with a second transmission member 3042, the output end of the second transmission member 3042 is provided with a transmission gear meshed with the second rack 3038, the support plate 3041 on the side away from the reinforcing rib is provided with a first profiling plate 3043 in parallel with the support plate 3041, the end surface of the support plate 3041 close to the first profiling plate 3043 is provided with a plurality of first blind holes 3044, the first profiling plate 3043 is provided with first mounting holes 3045 corresponding to the first blind holes 3044, and a first spring needle 305 is fixedly arranged in the first blind hole 3044 through the first mounting hole 3045; through the above arrangement, the two clamping assemblies 304 can clamp the workpiece, the second rack 3038 is arranged to mesh with the transmission gear to drive the support plate 3041 to clamp the workpiece through the first profiling plate 3043, the clamping precision is improved, the workpiece is not clamped and damaged due to excessive force when the two first profiling plates 3043 clamp the workpiece, the quality of the workpiece is ensured, and the generation of defective products is reduced.

[0045] In the embodiment, in order to prevent the clamp from working or being placed for a long time, avoid the chips or dust falling on the first rack 3033 and the second rack 3038 when the workpiece is machined, and affect the moving precision of the base 3034 and the support plate 3041, the piano protective cover 3039 connected with the base 3034 is arranged on the two sides of the guide rail fixed plate 3031, and the dust cover 3046 for covering the second rack 3038, the transmission gear and the second transmission member 3042 is arranged on the two sides of the support plate 3041; through the arrangement of the piano protective cover 3039 and the dust cover, a large amount of chips or dust can be effectively prevented from accumulating on the first rack 3033 and the second rack 3038.

[0046] In this embodiment, as shown in Figure 6 The second layer clamping support mechanism 40 includes a lifting fixed seat 403 sliding on both sides of the frame 10 and driven by a set of lifting cylinders 401 and having a guide sliding rail 402, and a second right support assembly 404 and a second left support plate assembly 405 sliding on the lifting fixed seat 403 and clamping towards each other. A plurality of second spring pins 406 are arranged on the second right support assembly 404 and the second left support plate assembly 405. By arranging the second layer clamping support mechanism 40 in cooperation with the first layer clamping support mechanism 30, large-size workpieces can be clamped, the practicality of the clamp is improved, and the situation of replacing the clamp is avoided, thereby improving the work efficiency.

[0047] The lifting fixed seat 403 is connected with the vertical guide rail 101 through a sliding block. The lifting fixed seat 403 is provided with sliding seats 4031 connected with the guide sliding rail 402. The sliding seats 4031 are provided in two, on both sides of the lifting fixed seat 403. The lifting fixed seat 403 located on one side of the frame 10 is provided with a push cylinder 4032. The push cylinder 4032 is provided with two, respectively arranged on the upper and lower ends of the lifting fixed seat 403. The output ends of the two push cylinders 4032 are respectively connected with the two sliding seats 4031. The two sliding seats 4031 are respectively provided with support fixed plates 4033 for fixing the second right support assembly 404 and the second left support plate assembly 405. The support fixed plates 4033 are provided with clamping grooves. The second right support assembly 404 and the second left support plate assembly 405 are inserted into the clamping grooves and fixed by bolts.

[0048] In addition, the second right support assembly 404 and the second left support plate assembly 405 are both provided with outer support plates 4041 connected with the support fixed plates 4033. The outer support plates 4041 are inserted into the clamping grooves and fixed with the support fixed plates 4033 by bolts. The sides of the two outer support plates 4041 facing each other are provided with second profile plates 4042 in parallel with the outer support plates 4041. The end faces of the outer support plates 4041 close to the second profile plates 4042 are provided with a plurality of second blind holes. The second profile plates 4042 are provided with second mounting holes 4043 corresponding to the second blind holes. One end of the second spring pin 406 is connected with the second blind hole 4043 through the second mounting hole 4043. By arranging the second spring pin 406 on the two second profile plates 4042, the second spring pin 406 can be arranged according to the different shapes of the workpiece to form the point and surface contact, so that the two outer support plates 4041 drive the second profile plates 4042 to clamp workpieces of different shapes, and the density of the second spring pin 406 is increased to increase the contact area between the clamp and the workpiece. In cooperation with the two clamping assemblies 304, the workpiece of large size and different shapes can be effectively clamped, and the stability is good.

[0049] The working principle of the profile universal clamp for clamping a workpiece is as follows:

[0050] The second right support assembly 404 and the second left support plate assembly 405 of the second layer clamping support mechanism 40 are opened, and the lifting cylinder 401 drives the lifting fixing seat 403 to move the second right support assembly 404 and the second left support plate assembly 405 to a set position, the first transmission member 3036 drives the base 3034 to drive the clamping assembly 304 to move to one side, so that the jig clamping hand 204 is exposed outside the two clamping assemblies 304, facilitating the mechanical hand to convey the workpiece for clamping; when the mechanical hand moves the workpiece to the position of the pressing positioning mechanism 20, the two telescopic cylinders 201 are started, the upper pressing block 202 is lowered, the jig clamping hand 204 clamps and positions the workpiece on the lower positioning block 103; after the mechanical hand exits, the first transmission member 3036 drives the base 3034 to drive the clamping assembly 304 to reset, at this time, the second transmission member 3042 is started, the two support plates 3041 drive the corresponding first profiling plates 3043 to clamp the workpiece, so as to fix the workpiece.

[0051] Similarly, when a large-size workpiece needs to be clamped, the second right support assembly 404 and the second left support plate assembly 405 of the second layer clamping support mechanism 40 are opened, and the lifting cylinder 401 drives the lifting fixing seat 403 to move the second right support assembly 404 and the second left support plate assembly 405 to a set position, the first transmission member 3036 drives the base 3034 to drive the clamping assembly 304 to move to one side, so that the jig clamping hand 204 is exposed outside the two clamping assemblies 304, facilitating the mechanical hand to convey the workpiece for clamping; when the mechanical hand moves the workpiece to the position of the pressing positioning mechanism 20, the two telescopic cylinders 201 are started, the upper pressing block 202 is lowered, the jig clamping hand 204 clamps and positions the workpiece on the lower positioning block 103; after the mechanical hand exits, the first transmission member 3036 drives the base 3034 to drive the clamping assembly 304 to reset, at this time, the second transmission member 3042 is started, the two support plates 3041 drive the corresponding first profiling plates 3043 to clamp the workpiece, so as to fix the workpiece.

[0052] The above setting can be used for products with different shapes, has good clamping effect, is convenient to use, can be repeatedly used, can realize clamping of various workpieces, and does not need to replace the clamp, so that the production efficiency is improved.

[0053] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A universal profiling fixture, comprising a frame, characterized in that: A clamping and positioning mechanism provided on the top of the frame for clamping the workpiece, a first-layer clamping support mechanism provided on the frame for supporting the workpiece, and a second-layer clamping support mechanism slidably provided on the frame and located outside the first-layer clamping support mechanism; The first layer of the clamping support mechanism includes a first right support plate assembly and a first left support plate assembly having the same structure as the first right support plate assembly and moving toward the first right support plate assembly to clamp and support the workpiece, the first right support plate assembly and the first left support plate assembly are both provided with a guide assembly and a clamping assembly slidably mounted on the guide assembly, and a plurality of first spring pins are arranged on the clamping assembly; The second-layer clamping support mechanism includes a lifting fixed seat slidably mounted on both sides of the frame and driven by a set of lifting cylinders and having a guide slide rail, and a second right support plate assembly and a second left support plate assembly slidably mounted on the lifting fixed seat and moving toward each other to clamp, and a plurality of second spring ejectors are arranged on the second right support plate assembly and the second left support plate assembly; Wherein, the two clamping assemblies and the second right support plate assembly and the second left support plate assembly are parallel to each other; The clamping and positioning mechanism is provided with a telescopic cylinder with two output ends passing through the top of the frame and extending between the two clamping components when movable. The output ends of the two telescopic cylinders are both provided with an upper pressing block. Guide slide bars passing through the top of the frame are symmetrically provided on both sides of the upper pressing block. The frame is provided with a linear bearing that cooperates with the guide slide bars to slide. A slide groove is provided at the bottom of the upper pressing block, and a fixture clamp is provided on the slide groove. An adjustment groove connected to the slide groove and extending along the direction of the slide groove is opened on one side of the upper pressing block. The guide assembly includes a guide rail fixing plate, the guide rail fixing plate is provided with a guide rail group arranged along the length direction of the guide rail fixing plate and a first rack arranged between the guide rail groups; the guide assembly also includes a base slidably arranged on the guide rail group, the base is provided with a transmission port, transition wheel fixing plates are provided on the upper and lower sides of the transmission port, a transition gear meshed with the first rack is provided between the two transition wheel fixing plates, the upper transition wheel fixing plate is installed with a first transmission member of a driving gear whose output end meshes with the transition gear for transmission, clamping slide rails arranged along the thickness direction of the guide rail fixing plate are provided on both sides of the bottom of the base, a second rack is provided between the two clamping slide rails, and the clamping assembly is slidably arranged on the base; The lifting and fixing seat is provided with a slide seat connected to the guide slide rail. There are two slide seats, which are arranged on both sides of the lifting and fixing seat. The lifting and fixing seat located on one side of the frame is provided with a pushing cylinder. There are two pushing cylinders, which are respectively arranged at the upper and lower ends of the lifting and fixing seat. The output ends of the two pushing cylinders are respectively connected to the two slide seats; the two slide seats are respectively provided with support fixing plates for fixing the second right support plate assembly and the second left support plate assembly.

2. The contour-profiling universal clamp according to claim 1, characterized in that: A set of vertical guide rails are symmetrically provided on the side walls on both sides of the frame. The lifting fixed seat is connected to the vertical guide rails through a slider. The two guide components are respectively arranged on the left and right sides of the top of the frame, and the clamping part of the clamping positioning mechanism is located between the two clamping components.

3. The contour-profiling universal clamp according to claim 2, characterized in that: A detachable lower fixture is provided at the bottom of the frame, and a lower positioning block is provided on the lower fixture to cooperate with the fixture clamp to position the workpiece.

4. The contour-profiling universal clamp according to claim 1, characterized in that: The clamping assembly includes a support plate connected to the clamping slide rail, and a reinforcing rib is formed on the outer wall of the support plate. A second transmission member with a transmission gear meshing with a second rack for transmission at the output end is installed on the reinforcing rib. A first profiling plate parallel to the support plate is provided on the support plate on the side away from the reinforcing rib, and a plurality of first blind holes are provided on the end surface of the support plate close to the first profiling plate. The first profiling plate is provided with a first mounting hole corresponding to the first blind hole, and one end of the first spring ejector pin passes through the first mounting hole and is connected to the first blind hole.

5. The contour-profiling universal clamp according to claim 1, characterized in that: The second right support plate assembly and the second left support plate assembly are both provided with an outer support plate connected to the support fixing plate, and a second profiling plate parallel to the outer support plate is installed on the opposite side of the two outer support plates, and a plurality of second blind holes are provided on the end surface of the outer support plate close to the second profiling plate. The second profiling plate is provided with a second mounting hole corresponding to the second blind hole, and one end of the second spring ejector pin passes through the second mounting hole and is connected to the second blind hole.

6. The contour-profiling universal clamp according to claim 1, characterized in that: Organ protective covers connected to the base are provided on both sides of the guide rail fixing plate.

7. The contour-profiling universal clamp according to claim 1, characterized in that: Dust covers for covering the second rack, the transmission gear and the second transmission member are provided on both sides of the support plate.

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